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Mercury Thermostats

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Sierra Thermostat

O.E. #

Sierra Thermostat Kit

6 (2 cyl.)A197112& Down1458618-3549 --
7.55226935& UP7569218-3553 --
8 (2 cyl.)A197112& Down1458618-3549 --
9.85206550& UP7569218-3553 --
9.9 (2 cyl.)A197112& Down1458618-3549 --
Sea Pro 10D038000& Down1458618-3549 --
15 (2 cyl.)B292414& Down1458618-3549 --
18XDB114231& Down1458618-3549 --
20XDB114231& Down1458618-3549 --
25XDB114231& Down1458618-3549 --
25 (2 cyl.)B238464& Down1458618-3549 --
25 Sea ProB238464& Down1458618-3549 --
30 (2 cyl.)G055314& Down1458618-3549 --
403336258C1591997569218-3553 --
45 Jet (3 cyl.)G290585& Down1458618-3549 --
50D000750& UP7569218-3553 --
50 (3 cyl.)G290585& Down1458618-3549 --
55 (3 cyl.)G290585& Down1458618-3549 --
60 (3 cyl.)G290585& Down1458618-3549 --
60D000750& UP7569218-3553 --
65354798745716517569218-3553 --
70457165248252487569218-3553 --
70 3 cyl.A996142& UP7569218-3553 803061T118-3569
75A996142& UP7569218-3553 --
75 3 cyl.C222000& UP--803061T118-3569
80A996142& UP7569218-3553 --
80 3 cyl.A996142& UP--803061T118-3569
90 3 cyl.A996142& UP7569218-3553 803061T118-3569
100 4 cyl.B209468& UP7569218-3553 803061T118-3569
115B209468& UP7569218-3553 --
115 4 cyl.C100000& UP--803061T118-3569
125 4 cyl.D283222& UP-18-3549 803061T118-3569
V135A904646& UP7569218-3553 -18-3672
V150A904646& UP7569218-3553 -18-3672
V150 XR4C239553C1591997569218-3553 -18-3672
V150 XR6D082000& UP7569218-3553 -18-3672
V150 MAG IIC23955345716517569218-3553 -18-3672
V150 MAG IIID08200048252487569218-3553 -18-3672
V175C100861& UP7569218-3553 -18-3672
V2006435503& UP7569218-3553 -18-3672
V220B117316& UP7569218-3553 --
V2255628028& UP7569218-3553 --
V300/3.4L5611648& UP7569218-3553 --
XR4C239553D0819997569218-3553 --
Magnum IIC239553D0819997569218-3553 --

HP

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O.E. #

Sierra Thermostat

O.E. #

Sierra Thermostat Kit

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Genuine Mercury Thermostat Assembly - 892864T04
Your Price: $116.50
Save: $19.41
(14% Off $135.91)
Part # 892864T04 ValueShip™ Eligible
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Fits:
  • Mercury / Mariner 135 VERADO (4-STROKE)(4 CYL.) Serial: 1B227000 & Up
  • Mercury / Mariner 150 VERADO (4-STROKE)(4 CYL.) Serial: 1B227000 & Up
  • Mercury / Mariner 175 VERADO (4-STROKE)(4 CYL.) Serial: 1B227000 & Up
  • Mercury / Mariner 200 VERADO (4-STROKE)(4 CYL.) Serial: 1B517159 & Up
  • Mercury / Mariner 200 VERADO (4-STROKE)(6 CYL.) Serial: 0T980000 & Up
  • Mercury / Mariner 200 PRO VERADO (4-STROKE)(6 CYL.) Serial: 2B034840 & Up
  • Mercury / Mariner 225 VERADO (4-STROKE)(6 CYL.) Serial: 0T980000 & Up
  • Mercury / Mariner 250 VERADO (4-STROKE)(6 CYL.) Serial: 0T980000 & Up
  • Mercury / Mariner 250 PRO VERADO (4-STROKE)(6 CYL.) Serial: 1B830170 & Up
  • Mercury / Mariner 275 VERADO (4-STROKE)(6 CYL.) Serial: 0T980000 & Up
  • Mercury / Mariner 300 VERADO (4-STROKE)(6 CYL.) Serial: 1B517434 & Up
  • Mercury / Mariner 300 PRO VERADO (4-STROKE)(6 CYL.) Serial: 1B830170 & Up
Genuine Mercury Thermostat Assembly - 8M0046693
Your Price: $69.27
Save: $11.55
(14% Off $80.82)
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Fits:
  • Mercury / Mariner 135 VERADO (4-STROKE)(4 CYL.) Serial: 1B517159 & Up
  • Mercury / Mariner 150 VERADO (4-STROKE)(4 CYL.) Serial: 1B517159 & Up
  • Mercury / Mariner 175 VERADO (4-STROKE)(4 CYL.) Serial: 1B517159 & Up
  • Mercury / Mariner 200 VERADO (4-STROKE)(4 CYL.) Serial: 1B517159 & Up
  • Mercury / Mariner 200 VERADO (4-STROKE)(6 CYL.) Serial: 1B517434 & Up
  • Mercury / Mariner 200 PRO VERADO (4-STROKE)(6 CYL.) Serial: 2B034840 & Up
  • Mercury / Mariner 225 VERADO (4-STROKE)(6 CYL.) Serial: 1B517434 & Up
  • Mercury / Mariner 250 VERADO (4-STROKE)(6 CYL.) Serial: 1B517434 & Up
  • Mercury / Mariner 250 PRO VERADO (4-STROKE)(6 CYL.) Serial: 1B830170 & Up
  • Mercury / Mariner 275 VERADO (4-STROKE)(6 CYL.) Serial: 1B517434 & Up
  • Mercury / Mariner 300 VERADO (4-STROKE)(6 CYL.) Serial: 1B517434 & Up
  • Mercury / Mariner 300 PRO VERADO (4-STROKE)(6 CYL.) Serial: 1B830170 & Up
Genuine Mercury Thermostat Cover Gasket - 850318 1
Your Price: $2.21
Save: $0.89
(28% Off $3.10)
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Fits:
  • Mercury / Mariner 200 DFI Serial: 0G760300 THRU 0T800999
  • Mercury / Mariner 200 DFI (3.0L) Serial: 0T801000 & UP
  • Mercury 200 DFI (3.0L)(DTS) Serial: 0T980000 & UP
  • Mercury / Mariner 200 EFI (3.0L) Serial: 0T750164 & UP
  • Mercury 200 PRO XS DFI (3.0L) Serial: 1B504989 & UP
  • Mercury / Mariner 225 DFI Serial: 0G760300 THRU 1B504988
  • Mercury / Mariner 225 DFI (3.0L) Serial: 0T801000 & UP
  • Mercury / Mariner 225 DFI (3.0L)(DTS) Serial: 0T599000 & UP
  • Mercury / Mariner 225 EFI (3.0L) Serial: 0T409000 & UP
  • Mercury / Mariner 225 EFI (3.0L) Seapro / Marathon Serial: 0T801000 THRU 1B417701
  • Mercury 225 PRO XS DFI (3.0L) Serial: 1B104549 & UP
  • Mercury 250 DFI (3.0L) Serial: 1B528615 & UP
  • Sportjet 250 DFI Jet Drive (Powerhead & Pump) (including M2) Serial: 0E407100 & UP
  • Mercury / Mariner 250 EFI (3.0L) Serial: 0T409000 & UP
  • Mercury / Mariner 250 LONG (3.0L)EFI Serial: 0T861319 & UP
  • Mercury 250 PRO XS DFI (3.0L) Serial: 1B426561 & UP
  • Mercury / Mariner 3.0L EFI Seapro / Marathon Serial: 0T409000 THRU 0T800999
Genuine Mercury Thermostat, 62 degree C (143 degree F) - 895338
Your Price: $18.29
Save: $3.04
(14% Off $21.33)
Part # 895338 ValueShip™ Eligible
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Fits:
  • Mercury / Mariner 30 (2 CYL.) Serial: 0T980000 Thru 0T999999; 1B000001 & Up
  • Mercury / Mariner 40 (2 CYL.) Serial: 0T980000 Thru 0T999999; 1B000001 & Up
Genuine Mercury Thermostat (120 Degree) - 14586
Your Price: $22.21
Save: $3.70
(14% Off $25.91)
Part # 14586 ValueShip™ Eligible
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Fits:
  • Mercury / Mariner 6 Serial: 0A197112 THRU 0T800999
  • Mercury / Mariner 8 Serial: 0A197112 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 9.9 Serial: 0A197112 THRU 0T999999; 1B000001 & UP
  • Mariner 10 MAGNUM Serial: 0D038000 THRU 0D279999; 0D281000 THRU 0T979999
  • Mercury / Mariner 10 Seapro / Marathon Serial: 0D038000 THRU 0D279999; 0D281000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 15 Serial: 0A197112 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 15 Seapro / Marathon Serial: 0G044365 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 18XD Serial: 6443973 THRU 0B238463
  • Mercury / Mariner 20 (2 Cyl.) Serial: 0B238464 THRU 0T979999
  • Mercury / Mariner 20 JET Serial: 0G044027 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 20XD (2 Cyl.) Serial: 6443973 THRU 0B238463
  • Mercury / Mariner 25, 25 Seapro / Marathon, SUPER 15 (2 Cyl.) Serial: 0B238464 THRU 0T979999
  • Mercury 25 (2 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 25XD Serial: 6443973 THRU 0B238463
  • Mercury / Mariner 30 (2 Cyl.) Serial: 0G055314 THRU 0G760299
  • Mercury / Mariner 40 (2 Cyl.) Serial: 0G055314 THRU 0G760299
  • Mercury / Mariner 40 (4-Stroke)(4 Cyl.) Serial: 0T178500 THRU 0T598999
  • Mercury / Mariner 40 EFI (4 Cyl.)(4-Stroke) Serial: 0T409000 THRU 1B344306; 1C000001 & UP
  • Mercury 40 EFI (4 Cyl.)(4-Stroke)(JET) Serial: 1C051324 & UP
  • Mercury / Mariner 45 JET Serial: 0D000750 THRU 0G589999
  • Mercury / Mariner 50 (3 Cyl.) Serial: 0D000750 THRU 0G589999
  • Mercury / Mariner 50 (4-Stroke)(4 Cyl.) Serial: 0T178500 THRU 0T598999
  • Mercury / Mariner 50 EFI (4 Cyl.)(4-Stroke) Serial: 0T409000 THRU 1B344306; 1C000001 & UP
  • Mercury / Mariner 55 (3 Cyl.) Serial: 0D000750 THRU 0G589999
  • Mercury / Mariner 60 (3 Cyl.) Serial: 0D000750 THRU 0G589999
  • Mercury / Mariner 60 (4-Stroke)(4 Cyl.) Serial: 0T178500 THRU 0T598999
  • Mercury / Mariner 60 EFI (4 Cyl.)(4-Stroke) Serial: 0T409000 THRU 1B344306; 1C000001 & UP
  • Mercury / Mariner 65 JET Serial: 0D283222 THRU 0T979999
  • Mercury 65 JET (3 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 75 (3 Cyl.) Serial: 0C222000 THRU 0T999999; 1B000000 & UP
  • Mercury / Mariner 80 JET Serial: 0D283222 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 90 (3 Cyl.) Serial: 0C222000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 100 (4 Cyl.) Serial: 0A722297 THRU 0G965520; Mercury 0B209468 THRU 0D283221
  • Mercury / Mariner 115 (4 Cyl.) Serial: 0C100000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 125 (4 Cyl.) Serial: 0D283222 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 250 / 275 Serial: 0C101891 & UP
  • Mercury XR10 Serial: 0D038000 THRU 0D279998; 0D281000 THRU 0T979999
Genuine Mercury Thermostat, 60 Degree C (140 Degree F) - 855676 1
Your Price: $45.93
Save: $7.65
(14% Off $53.58)
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Fits:
  • Mercury / Mariner 75 (4-Stroke); 75 (4-Stroke)(Bodensee) Serial: 0G960500 THRU 1B226999
  • Mercury / Mariner 75 EFI (4-Stroke) Serial: 1B172291 THRU 1B366822
  • Mercury / Mariner 80 EFI (4-Stroke) Serial: 1B227000 THRU 1B366822
  • Mercury / Mariner 90 (4-Stroke) Serial: 0G960500 THRU 1B226999
  • Mercury / Mariner 90 EFI (4-Stroke) Serial: 1B172291 THRU 1B366822
  • Mercury / Mariner 100 EFI (4-Stroke) Serial: 1B227000 THRU 1B366822
  • Mercury / Mariner 225 EFI (4-Stroke) Serial: 0T653945 & UP
Genuine Mercury Thermostat, 62 degree C (143 degree F) - 833072004
Your Price: $23.07
Save: $3.84
(14% Off $26.91)
Part # 833072004 ValueShip™ Eligible
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Fits:
  • Mercury / Mariner 75 DFI (3 CYL.)(1.5L) Serial: 0T980000 & Up
  • Mercury 80 Jet (3 CYL.)(1.5L) Serial: 1B586067 & Up
  • Mercury / Mariner 90 DFI (3 CYL.)(1.5L) Serial: Mercury 0T801000 & Up; Mariner 0T980000 & Up
  • Mercury / Mariner 115 DFI (3 CYL.)(1.5L) Serial: Mercury 0T801000 & Up; Mariner 0T980000 & Up
  • Mercury 115 Pro XS (3 CYL.)(1.5L) Serial: 1B751825 & Up
  • Mercury / Mariner 125 DFI (3 CYL.)(1.5L) Serial: 1B736885 & Up
Genuine Mercury Thermostat Housing Assembly - 892864T06
Your Price: $82.71
Save: $13.79
(14% Off $96.50)
Part # 892864T06 ValueShip™ Eligible
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Fits:
  • Mercury / Mariner 75 EFI (4-STROKE) Serial: 1B366823 Thru 2B059605
  • Mercury / Mariner 80 EFI (4-STROKE) Serial: 1B366823 Thru 2B059605
  • Mercury / Mariner 90 EFI (4-STROKE) Serial: 1B366823 Thru 2B059605
  • Mercury / Mariner 100 EFI (4-STROKE) Serial: 1B366823 Thru 2B059605
  • Mercury / Mariner 115 EFI (4-STROKE) Serial: 1B366823 Thru 2B059605
  • Mercury / Mariner 150 (4-Stroke) Serial: 1B905505 & Up
Genuine Mercury Thermostat Cover Gasket - 62386001
Your Price: $1.36
Save: $0.54
(28% Off $1.90)
Part # 62386001 ValueShip™ Eligible
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Fits:
  • Mercury / Mariner 8 Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 9.9 Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 10 Seapro / Marathon Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 15 Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 15 Seapro / Marathon Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury 20 JET Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury 25 (2 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 30 (2 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 40 (2 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury 40 JET Serial: 0T980000 & UP
  • Mercury / Mariner 55 (3 Cyl.) Serial: 0T980000 & UP
  • Mercury / Mariner 60 (3 Cyl.) Serial: 0T980000 & UP
  • Mercury 65 JET (3 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 75 (3 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 75 DFI (3 Cyl.)(1.5L) Serial: 0T980000 THRU 1B736885; 1B736885 & UP
  • Mercury 80 JET Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury 80 Jet (3 Cyl.)(1.5L) Serial: 1B586067 THRU 1B736885; 1B736885 & UP
  • Mercury / Mariner 90 (3 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 90 DFI (3 Cyl.)(1.5L) Serial: 0T801000 & UP; Mariner 0T980000 & UP
  • Mercury 110 Jet (2.5L) Serial: 1B690542 & UP
  • Mercury / Mariner 115 (4 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 115 DFI (3 Cyl.)(1.5L) Serial: 0T801000 & UP; Mariner 0T980000 & UP
  • Mercury 115 Pro XS (3 Cyl.)(1.5L) Serial: 1B751825 & UP
  • Mercury / Mariner 125 (4 Cyl.) Serial: 0T980000 THRU 0T999999; 1B000001 & UP
  • Mercury / Mariner 125 DFI (3 Cyl.)(1.5L) Serial: 1B736885 & UP
  • Mercury / Mariner V-135 Serial: 0G960500 THRU 0T178499
  • Mercury / Mariner V-135 DFI (2.5L) Serial: 0T801000 & UP
  • Mercury / Mariner 140 JET Serial: 0G960500 THRU 0T178499
  • Mercury 150 Pro XS (2.5L) Serial: 1B690542 & UP
  • Mercury / Mariner V-150 Serial: 0G960500 THRU 1B226999
  • Mercury / Mariner V-150 DFI (2.5L) Serial: 0T801000 & UP
  • Mercury / Mariner V-150 EFI (2.5L) Serial: 0T801000 & UP
  • Mercury 175 PROXS (2.5L) Serial: 1B516339 & UP
  • Mercury / Mariner V-175 DFI (2.5L) Serial: 0T801000 & UP
  • Sportjet 200 DFI Jet Drive (Powerhead) Serial: 0E435742 & UP; 1B321662 & UP
  • Sportjet 200 DFI Jet Drive (Pump) Serial: 0M964699 & UP
  • Sportjet 200 DFI M2 Jet Drive (Pump) Serial: 0M965234 & UP
  • Mercury / Mariner V-200 Serial: 0G960500 THRU 1B226999
  • Mercury / Mariner V-200 EFI (2.5L) Serial: 0T801000 & UP
  • Mariner MAGNUM III Serial: 0G960500 THRU 1B226999
  • Mercury XR-6 Serial: 0G960500 THRU 1B226999
Genuine Mercury Thermostat, 62 Degree C (143 Degree F) - 833072003
Your Price: $29.50
Save: $4.91
(14% Off $34.41)
Part # 833072003 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins.
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Fits:
  • Mercury 110 Jet (2.5L) Serial: 1B690542 & Up
  • Mercury / Mariner V-135 DFI (2.5L) Serial: 0T801000 & Up
  • Mercury / Mariner V-150 DFI (2.5L) Serial: 0T801000 & Up
  • Mercury 150 Pro XS (2.5L) Serial: 1B690542 & Up
  • Mercury / Mariner V-175 DFI (2.5L) Serial: 0T801000 & Up
  • Mercury 175 PROXS (2.5L) Serial: 1B516339 & Up
Genuine Mercury Thermostat, 54 Degree C/130 Degree F - 8M0057307
Your Price: $76.43
Save: $12.74
(14% Off $89.17)
Part # 8M0057307 ValueShip™ Eligible
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Fits:
  • Mercury 200 (DFI) 3.0L; 200 PRO XS (DFI) 3.0L Serial: 1B912786 & Up
Thermostat 120 Degrees - 18-3549 - Sierra
Your Price: $18.75
Save: $7.43
(28% Off $26.18)
Part # 18-3549 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins.
Hurry! Only 1 left in stock
Replaces OEM part #
  • MERCURY MARINE 14586
  • For: 6, 7, 8, 9.9, 15 & 30 Hp Mercury/Mariner -A197112& later
  • 120 degrees
Representative Photo only.
Thermostat - 18-3553 - Sierra
Your Price: $9.98
Save: $4.84
(32% Off $14.82)
Part # 18-3553 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins. 143 Degree

Replaces OEM part #
  • MERCURY MARINE 75692
Thermostat Kit - 18-3569 - Sierra
Meltdown Sale Price: $15.29
Save: $3.88
(20% Off $19.17)
Part # 18-3569 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins. Replaces OEM part #
  • MERCURY MARINE 803061T1
Representative Photo Only.
Thermostat Kit - 18-3672 - Sierra
Your Price: $15.85
Save: $10.60
(40% Off $26.45)
Part # 18-3672 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins. Contains:
  • ( 1 )Thermostat 18-3553 - replaces Mercury/Mariner O.E. # 75692
  • ( 1 )Thermostat Grommet 18-0182 - replaces Mercury/Mariner O.E. #27-62386
Thermostat Kit - 18-3672D - Sierra
Meltdown Sale Price: $18.89
Save: $10.54
(35% Off $29.43)
Part # 18-3672D ValueShip™ Eligible
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Hurry! Only 1 left in stock
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Contains:
  • ( 1 )Thermostat 18-3553 - replaces Johnson/Evinrude O.E.# 434841 and Mercury/Mariner O.E. # 75692
  • ( 1 )Thermostat Gasket 18-0182 - replaces Johnson/Evinrude O.E.# 310058 and Mercury/Mariner O.E. #27-62386
Thermostat - 18-3535 - Sierra
Meltdown Sale Price: $54.89
Save: $19.10
(25% Off $73.99)
Part # 18-3535 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins.
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    Replaces: 885599004
    Fits: 200 3.0L DFI DTS (ALL), 200 3.0L EFI (2003 & Up)(OT750164 & Up), 200 DFI (1997 & Up)(OG386496 & Up), 225 3.0L EFI (1999 & Up)(OG760300 & Up), 225 3.0L EFI SeaPro ( 2004 & Up) (OT801000 & Up), 225 3.0L DFI DTS (2003 & Up)(OT599000 & Up), 225 DFI (1998 & Up)(OG590000 & Up), 250 3.0L EFI (1999 & Up)(OG760300 & Up), 250 Long 3.0L EFI (OT861319 & Up)
Thermostat - 18-3534 - Sierra
Meltdown Sale Price: $24.29
Save: $8.69
(26% Off $32.98)
Part # 18-3534 ValueShip™ Eligible
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    Replaces: 850055001
    Fits: 40 3cyl (1998 & Up),40 Jet (2000 & Up), 50 3cyl (1986 & Up), 55 3cyl (1996 & Up), 60 3cyl (1984 & Up)
Thermostat - 18-3536 - Sierra
Meltdown Sale Price: $27.89
Save: $5.92
(17% Off $33.81)
Part # 18-3536 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins.
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    Replaces: 833072003
    Fits: V135 DFI 2.5L (1998 & Up) (OG590000 & Up), V150 DFI 2.5L (1998 & Up)(OG590000 & Up), V175 DFI 2.5L (2001 & Up)(OT178500 & Up)
Thermostat - 18-3537 - Sierra
Meltdown Sale Price: $19.79
Save: $3.70
(15% Off $23.49)
Part # 18-3537 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins.
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    Replaces: 833072004
    Fits: 75 3 cyl DFI 1.5L (2006 & Up) (OT980000 & Up), 90 3 cyl DFI 1.5L (2004 & Up)(OT801000 & Up) , 115 3 cyl DFI 1.5L (2004 & Up)(OT801000 & Up)
Thermostat Kit - 18-3605 - Sierra
Meltdown Sale Price: $53.09
Save: $9.90
(15% Off $62.99)
Part # 18-3605 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins.
Hurry! Only 1 left in stock
    Fits: V-135 DFI (2.5L)(1998 & Up), V-150 DFI (2.5L) (1998 & Up), V-175 DFI (2.5L)(2000 & Up)
Thermostat Kit - 18-3606 - Sierra
Your Price: $148.10
Save: $48.53
(24% Off $196.63)
Part # 18-3606 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins.
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    Fits: 200 3.0L DFI DTS (ALL), 200 3.0L EFI (2003 & Up)(OT750164 & Up), 200 DFI (1997 & Up)(OG386496 & Up), 225 3.0L EFI (1999 & Up)(OG760300 & Up), 225 3.0L EFI SeaPro ( 2004 & Up)(OT801000 & Up), 225 3.0L DFI DTS (2003 & Up) (OT599000 & Up), 225 DFI (1998 & Up)(OG590000 & Up), 250 3.0L EFI (1999 & Up) (OG760300 & Up), 250 Long 3.0L EFI (OT861319 & Up)
 
Mallory Thermostat Kit 9-43052
Meltdown Sale Price: $16.26
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Part # 9-43052
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins.
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Mercury Thermostat Gasket
Mercury Thermostat Gasket
Your Price: $1.57
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Part # 516-39
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    Mercury:
  • 27-850318
Mercury Thermostat Gasket
Mercury Thermostat Gasket
Your Price: $2.77 (Out of stock)
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Part # 540-24
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    Mercury:
  • 27-879855
Mercury Thermostat Gasket
Mercury Thermostat Gasket
Your Price: $3.27
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(14% Off $3.82)
Part # 540-27
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    Mercury:
  • 27-43006-8
Thermostat Kit - 18-43052 - Sierra
Meltdown Sale Price: $24.18 (Out of stock)
Part # 18-43052 ValueShip™ Eligible
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Replaces OEM Part #:
  • Mercury 14586A3
Thermostat Kit - 18-43175 - Sierra
Meltdown Sale Price: $39.27
Part # 18-43175 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 20 hrs 33 mins.
No Reviews | Write Review | Ask Question
Replaces OEM Part #:
  • Mercury 855676002
  • Nissan/Tohatsu 3R3-01030-0
Mercury
Thermostat Kits and Thermostats for Mercury Marine
Average Customer Review for Thermostat 120 Degrees - 18-3549 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarJust worked
by Bob from Surrey, British Columbia on March 01, 2013
pretty much just had to fit and work...it did both so i'm happy.
(0 of 1 people found this review helpful)
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Average Customer Review for Thermostat - 18-3553 - Sierra
Full StarFull StarFull StarFull StarEmpty Star Based On 5 Reviews | Write Review
Full StarEmpty StarEmpty StarEmpty StarEmpty StarMissing parts
by James from Cascade, Colorado on May 17, 2015
This product did not come with the appropriate Gasket, which it should. Which made it junk to me. Wrote it off as a waste of money, because It would just cost more to me to send it back.
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Full StarFull StarFull StarFull StarFull StarThermostats - Sierra
by Dave from Martinez, Georgia on July 15, 2014
Mercury running cool short time from the time i ordered till they arrived great price
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty StarThermostats
by Tim from Winston Salem, North Carolina on November 07, 2013
I ordered the thermostats and water pump kit, they arrived quickly. I'm pleased, will use you again. Thanks
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Full StarFull StarFull StarFull StarFull StarIt fits!
by Bennett from Herriman, Utah on March 20, 2012
It's a thermostat that fits!
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Full StarFull StarFull StarFull StarEmpty StarThermostat
by James from Wilmington, North Carolina on August 11, 2011
I would like to have the rubber washer included with the product. I did not like reusing the old rubber washer. Speedy delivery!
(1 of 1 people found this review helpful)
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Average Customer Review for Thermostat Kit - 18-3569 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 2 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Starthemostat
by Willie from Moweaqua, Illinois on June 19, 2015
works great
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Full StarFull StarFull StarFull StarFull StarSierra Thermostat Kit
by Greg from Redding, California on May 24, 2014
The kit fit like it was made for the motor...which I presumed it was when I bought it :)
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Average Customer Review for Thermostat Kit - 18-3672 - Sierra
Full StarFull StarFull StarFull StarEmpty Star Based On 14 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarGreat Inventory
by Doug from Bethel Island, California on May 26, 2015
Have an older 1969 Johnson outboard great to have access to parts I need, so far parts have been on time, and fit ......Thank You
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Full StarFull StarFull StarFull StarFull Staralways have the parts you need
by Gregory from Grayson, Kentucky on May 25, 2015
if you need parts this is the place to shop and buy. always has great selection of hard to find parts at a good price
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Full StarFull StarFull StarFull StarFull Starmy thermostat kit
by Kenneth from Regina, Kentucky on April 21, 2015
parts was exactly as I ordered and shipped fast as well totally satisfied
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Full StarFull StarFull StarFull StarFull StarThermostat Kit - Sierra
by Kenneth from Humble, Texas on August 21, 2013
Found the part online with no problem. everything I needed was in the package.
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Full StarFull StarFull StarFull StarFull StarNo Problems
by David from Phoenix, Arizona on July 17, 2013
Correct Part and Work Fine
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Full StarEmpty StarEmpty StarEmpty StarEmpty StarOverheated
by Joshua from Camden, New York on June 23, 2013
This thermostat failed to open and my engine overheated. I have never been disappointed with Sierra products until now. Now my engine is running poorly and I'm hoping the head gasket let loose before the rings got cooked. 1973 Evinrude 25HP
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Full StarFull StarFull StarFull StarFull StarYou NEED a Thermostat--Do Not Just Take It OUT
by Raymond from Fort Pierce, Florida on November 13, 2012
Got my part in TWO Days what more could you ask for
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarThermostats
by Joe from Johnsburg, Illinois on October 18, 2012
Solved my cooling problems good quality.
(3 of 3 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarJUST WHAT THE MOTOR ORDERD
by Toby from Costa Mesa, California on November 11, 2011
FIT - WORKS GREAT - FAST SHIPPING
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarJust what I Ordered
by Clifford from Madras, Oregon on October 26, 2011
Exact fit!
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarFollow up to previous review - Mercury 150 outboard
by Anthony from Key Largo, Florida on September 20, 2011
Iboats did provide me a refund for this thermostat kit...took approximately 2 months, but in the end they did come through.
(1 of 1 people found this review helpful)
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Full StarEmpty StarEmpty StarEmpty StarEmpty StarWrong Thermostat Kit for Mercury Outboard
by Anthony from Key Largo, Florida on August 26, 2011
According to the iboat website, this thermostat kit is compatible with my 1993 Mercury 150HP outboard...it isn't! Save yourself the aggravation of water spraying out between the thermostat housing and the valve covers and being told that the parts are not refundable unless they are defective. I'm certain that these thermostat kits do work in some engines, just not in the outboard iboat's website references. Too bad this review does not allow criticism of iboat's customer service... I'm still waiting to see if I'll receive a refund due to their error!
(3 of 3 people found this review helpful)
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Full StarFull StarFull StarEmpty StarEmpty StarNo gasket included
by John from Lancaster, New York on June 23, 2010
This kit does not include a gasket as stated in the discription.
(5 of 5 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty StarReview for Thermostat Kit for Johnson/Evinrude 310058 434841, Mercury/Mariner 75692, GLM 1
by a Customer on February 02, 2009
(2 of 6 people found this review helpful)
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Average Customer Review for Thermostat Kit - 18-3605 - Sierra
Full StarFull StarFull StarEmpty StarEmpty Star Based On 1 Review | Write Review
Full StarFull StarFull StarEmpty StarEmpty StarThermostat kit
by Bob from Carthage, Missouri on April 29, 2013
Kit came with rubber grommets but wrong gasket for opti 135. Good price for the set though.
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Q:
Does this include the gasket?
A:
This is thermostat only.
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