Mercury Thermostats

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Sierra Thermostat

Mallory Thermostat

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Sierra Thermostat Kit

Mallory Thermostat Kit

6 (2 cyl.)A197112& Down1458618-3549 9-43014---
7.55226935& UP7569218-3553 9-43019 ---
8 (2 cyl.)A197112& Down1458618-3549 9-43014---
9.85206550& UP7569218-3553 9-43019 ---
9.9 (2 cyl.)A197112& Down1458618-3549 9-43014---
Sea Pro 10D038000& Down1458618-3549 9-43014---
15 (2 cyl.)B292414& Down1458618-3549 9-43014---
18XDB114231& Down1458618-3549 9-43014---
20XDB114231& Down1458618-3549 9-43014---
25XDB114231& Down1458618-3549 9-43014---
25 (2 cyl.)B238464& Down1458618-3549 9-43014---
25 Sea ProB238464& Down1458618-3549 9-43014---
30 (2 cyl.)G055314& Down1458618-3549 9-43014---
403336258C1591997569218-3553 9-43019 ---
45 Jet (3 cyl.)G290585& Down1458618-3549 9-43014---
50D000750& UP7569218-3553 9-43019 ---
50 (3 cyl.)G290585& Down1458618-3549 9-43014---
55 (3 cyl.)G290585& Down1458618-3549 9-43014---
60 (3 cyl.)G290585& Down1458618-3549 9-43014---
60D000750& UP7569218-3553 9-43019 ---
65354798745716517569218-3553 9-43019 ---
70457165248252487569218-3553 9-43019 ---
70 3 cyl.A996142& UP7569218-3553 9-43019 803061T118-3569 9-43155
75A996142& UP7569218-3553 9-43019 ---
75 3 cyl.C222000& UP--9-43155803061T118-3569 -
80A996142& UP7569218-3553 9-43019 ---
80 3 cyl.A996142& UP--9-43155803061T118-3569 -
90 3 cyl.A996142& UP7569218-3553 9-43019 803061T118-3569 9-43155
100 4 cyl.B209468& UP7569218-3553 9-43019 803061T118-3569 9-43155
115B209468& UP7569218-3553 9-43019 ---
115 4 cyl.C100000& UP--9-43155803061T118-3569 -
125 4 cyl.D283222& UP-18-3549 9-43155803061T118-3569 -
V135A904646& UP7569218-3553 9-43019 -18-3672 9-43101
V150A904646& UP7569218-3553 9-43019 -18-3672 9-43101
V150 XR4C239553C1591997569218-3553 9-43019 -18-3672 9-43101
V150 XR6D082000& UP7569218-3553 9-43019 -18-3672 9-43101
V150 MAG IIC23955345716517569218-3553 9-43019 -18-3672 9-43101
V150 MAG IIID08200048252487569218-3553 9-43019 -18-3672 9-43101
V175C100861& UP7569218-3553 9-43019 -18-3672 9-43101
V2006435503& UP7569218-3553 9-43019 -18-3672 9-43101
V220B117316& UP7569218-3553 9-43019 ---
V2255628028& UP7569218-3553 9-43019 ---
V300/3.4L5611648& UP7569218-3553 9-43019 ---
XR4C239553D0819997569218-3553 9-43019 ---
Magnum IIC239553D0819997569218-3553 9-43019 ---

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Sierra Thermostat

Mallory Thermostat

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Sierra Thermostat Kit

Mallory Thermostat Kit

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HP

Mercury Marine Thermostat - Sierra
Your Price: $21.99
Save: $3.34
(13% Off $25.33)
Part # 18-3549 ValueShip™ Eligible
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 - Sierra
Your Price: $10.99
Save: $3.83
(25% Off $14.82)
Part # 18-3553 ValueShip™ Eligible
143 Degree

Replaces OEM part #
  • MERCURY MARINE 75692
Thermostat Kit - Sierra
Your Price: $15.99
Save: $2.50
(13% Off $18.49)
Part # 18-3569 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 803061T1
Representative Photo Only.
Thermostat Kit - Sierra
Your Price: $16.99
Save: $8.80
(34% Off $25.79)
Part # 18-3672 ValueShip™ Eligible
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 - Sierra
Your Price: $20.99
Save: $7.68
(26% Off $28.67)
Part # 18-3672D ValueShip™ Eligible
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 - Sierra
Your Price: $61.99
Save: $12.00
(16% Off $73.99)
Part # 18-3535 ValueShip™ Eligible
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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 - Sierra
Your Price: $27.99
Save: $4.99
(15% 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 - Sierra
Your Price: $28.99
Save: $2.08
(6% Off $31.07)
Part # 18-3536 ValueShip™ Eligible
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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 - Sierra
Your Price: $21.99
Save: $1.50
(6% Off $23.49)
Part # 18-3537 ValueShip™ Eligible
Hurry! Only 1 left in stock
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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 - Sierra
Your Price: $58.99
Save: $4.00
(6% Off $62.99)
Part # 18-3605 ValueShip™ Eligible
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 - Sierra
Your Price: $148.99
Save: $44.33
(22% Off $193.32)
Part # 18-3606 ValueShip™ Eligible
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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 (143) 9-43101
Mallory Thermostat Kit (143) 9-43101
Your Price: $18.99
Save: $6.80
(26% Off $25.79)
Part # 9-43101 ValueShip™ Eligible
Hurry! Only 1 left in stock
Replaces Original Equipment Manufacturer(OEM):Mercury / Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):75692 / 434841+310058
Mallory Thermostat (143) 9-43019
Your Price: $11.99
Save: $2.83
(19% Off $14.82)
Part # 9-43019 ValueShip™ Eligible
Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude / Mercury/Force
Replaces Original Equipment Manufacturer # (OEM #):434841 / 75692
Thermostat Cover Kit for Mercury 90390A1 - Mallory
Your Price: $19.99
Save: $2.50
(11% Off $22.49)
Part # 9-43050 ValueShip™ Eligible
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Replaces: Mercury 90390A1
Fits: V-6
Thermostat Cover Kit for Mercury - Mallory
Your Price: $39.99
Save: $6.35
(13% Off $46.34)
Part # 9-43051 ValueShip™ Eligible
Hurry! Only 1 left in stock
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Fits: Mercury OB V-6
 
Mallory Thermostat Kit 9-43052
Your Price: $23.39
Save: $3.90
(14% Off $27.29)
Part # 9-43052
Hurry! Only 1 left in stock
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Mercury Thermostat Gasket
Mercury Thermostat Gasket
Your Price: $1.41
Part # 516-39
No Reviews | Write Review | Ask Question
    Mercury:
  • 27-850318
Mercury Thermostat Gasket
Mercury Thermostat Gasket
Your Price: $2.50
Part # 540-24
No Reviews | Write Review | Ask Question
    Mercury:
  • 27-879855
Mercury Thermostat Gasket
Mercury Thermostat Gasket
Your Price: $2.94
Part # 540-27
No Reviews | Write Review | Ask Question
    Mercury:
  • 27-43006-8
Sierra
Thermostat Kits and Thermostats for Mercury Marine
Average Customer Review for Mercury Marine Thermostat - Sierra
Based On 1 Review | Write Review
Just 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 - Sierra
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Thermostats - 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
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Thermostats
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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It fits!
by Bennett from Herriman, Utah on March 20, 2012
It's a thermostat that fits!
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Thermostat
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!
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Average Customer Review for Thermostat Kit - Sierra
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Sierra 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 - Sierra
Based On 11 Reviews | Write Review
Thermostat 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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No Problems
by David from Phoenix, Arizona on July 17, 2013
Correct Part and Work Fine
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Overheated
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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You 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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Thermostats
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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JUST 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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Just 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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Follow 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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Wrong 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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No 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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Review 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 - Sierra
Based On 1 Review | Write Review
Thermostat 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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Average Customer Review for Mallory Thermostat Kit (143) 9-43101
Based On 6 Reviews | Write Review
Thermostat for Mercury Outboard
by David from Saint Francis, Minnesota on August 10, 2013
Right product, right price, and very quick delivery
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Mallory Thermostat Kit
by Scott from Biloxi, Mississippi on May 20, 2013
Did the trick just what I needed
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great
by Michael from Christiansburg, Virginia on April 22, 2012
Works as it should
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Completely Satisfied
by Leonard from Chandler, Arizona on June 21, 2011
Product was as specified and a perfect fit.
(1 of 4 people found this review helpful)
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quality parts
by Gilbert from Mobile, Alabama on May 29, 2011
seal was not in package
(1 of 1 people found this review helpful)
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Review for Mallory Thermostat Kit (143) 9-43101
by a Customer on July 17, 2009
(1 of 3 people found this review helpful)
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Average Customer Review for Mallory Thermostat (143) 9-43019
Based On 2 Reviews | Write Review
Mallory thermostat 9-43019
by Joe from Las Vegas, Nevada on November 05, 2011
This thermostat works as advertised no problems at all.Shipping was fast had it within 5 days. I ordered another one and had the same results Thanks JEF
(1 of 3 people found this review helpful)
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Review for Mallory Thermostat (143) 9-43019
by a Customer on June 29, 2009
Very good! Perfect Fit.
(5 of 9 people found this review helpful)
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