Mercruiser Exhaust Manifolds

Refine Parts List
Model

(2.5 to 898)
Serial Number

Model

Serial Number

Manifold

Manifold

Manifold Gasket

1201666601 - 2046624--18-2896
1202046625 - 2324346--18-2896
1202324347 - 3377340--18-2896
1203377341 - 5192408--18-2896
1205192049 - 6229717--18-2896
120/2.5L6229718 & up18-1956-1 -18-1204
140(4Cyl)2508261 - 333213718-1955-1 -18-1203
140(4Cyl)3332138 - 515766818-1955-1 -18-1203
140(4Cyl)5157669 - 622971718-1955-1 -18-1203
140/3.0L6229718 & up18-1956-1 -18-1204
3.0L/3.0LXC856559 - F60399918-1956-1 -18-1204
140(6Cyl)1538930 - 1725960--18-2830
1501666495 - 2048046--18-2830
1602048022 - 2770031--18-2830
1652770032 & up18-1960-1 -18-2830
165/170/[3.7]L6916779 & up---
180/190/[3.7]LX6916779 & up---
175/4.3L (262 CID)B527955 & up18-1952-1 T-20952 18-2909
175/4.3L (262 CID)B527955 & up18-1952-1 T-20952 18-2909
4.3L (GEN II)D714107 & up18-1952-1 T-20952 18-2909
4.3L (GEN II)D714107 & up18-1952-1 T-20952 18-2909
4.3L (GEN II)F000878 & up18-1952-1 T-20952 18-2909
4.3L (GEN II)F000878 & up18-1952-1 T-20952 18-2909
185 (229 CID)6330183 & up18-1952-1 T-20952 18-2909
185 (229 CID)6330183 & up18-1952-1 T-20952 18-2909
185 (262 CID)A331455 & up18-1952-1 T-20952 18-2909
185 (262 CID)A331455 & up18-1952-1 T-20952 18-2909
2002453769 - 271207218-1960-1 -18-2830
200-GM6218462 & up18-1953-2 T-20953 18-0872
200-GM6218462 & up18-1953-2 T-20953 18-0872
200/5.0L(GM)B525982 & up18-1953-2 T-20953 18-0872
200/5.0L(GM)B525982 & up18-1953-2 T-20953 18-0872
205 (262 CID)A331455 & up18-1952-1 T-20952 18-2909
205 (262 CID)A331455 & up18-1952-1 T-20952 18-2909
205/4.3L-LXB527955 & up18-1952-1 T-20952 18-2909
205/4.3L-LXB527955 & up18-1952-1 T-20952 18-2909
4.3LX(GEN II)D714370 & up18-1952-1 T-20952 18-2909
4.3LX(GEN II)D714370 & up18-1952-1 T-20952 18-2909
4.3LX(GEN II)F001220 & up18-1952-1 T-20952 18-2909
4.3LX(GEN II)F001220 & up18-1952-1 T-20952 18-2909
215-FORD2781153 & up18-1962-18-0183
215-FORD2781153 & up18-1958-18-0183
225-FORD3385721 & up18-1962-18-0183
225-FORD3385721 & up18-1958-18-0183
225-S (FORD)3385721 & up18-1962-18-0183
225-S (FORD)3385721 & up18-1958-18-0183
225-GM1539620 - 2278646--18-0872
225-GM1539620 - 2278646N/A-18-0872
225-GM2278647 - 2694014--18-0872
228-GM4765100 - 4888929--18-0872
228-GM4888930 - 517000818-1951-1 T-20951 18-0872
228-GM4888930 - 517000818-1950-1 T-2095018-0872
228-GM5170009 - 621846118-1951-1 T-20951 18-0872
228-GM5170009 - 621846118-1950-1 T-2095018-0872
228-GM6218462 & up18-1953-2 T-20953 18-0872
228-GM6218462 & up18-1953-2 T-20953 18-0872
230-GM (IMBRD)5907058 & up18-1953-2 T-20953 18-0872
230-GM (IMBRD)5907058 & up18-1953-2 T-20953 18-0872
230/5.0 GM (IB)B522506 & up18-1953-2 T-20953 18-0872
230/5.0 GM (IB)B522506 & up18-1953-2 T-20953 18-0872
230-GM6218462 & up18-1953-2 T-20953 18-0872
230-GM6218462 & up18-1953-2 T-20953 18-0872
230/5.0L-LX (GM)B525982 & up18-1953-2 T-20953 18-0872
230/5.0L-LX (GM)B525982 & up18-1953-2 T-20953 18-0872
233-FORD4173000 & up18-1962-18-0183
233-FORD4173000 & up18-1958-18-0183
250-GM2314301 - 2639854--18-0872
250-GM4768860 - 490884918-1951-1 T-20951 18-0872
250-GM4768860 - 490884918-1950-1 T-2095018-0872
255-FORD3258728 & up18-1962-18-0183
255-FORD3258728 & up18-1958-18-0183
255-GM4175500 - 4499060--18-0872
255-GM4499061 - 519590818-1951-1 T-20951 18-0872
255-GM4499061 - 519590818-1950-1 T-2095018-0872
255-GM5195909 & up18-1951-1 T-20951 18-0872
255-GM5195909 & up18-1950-1 T-2095018-0872
260-GM4908850 - 621846118-1951-1 T-20951 18-0872
260-GM4908850 - 621846118-1950-1 T-2095018-0872
260-GM6218462 & up18-1953-2 T-20953 18-0872
260-GM6218462 & up18-1953-2 T-20953 18-0872
260/5.7L (GM)B525982 & up18-1953-2 T-20953 18-0872
260/5.7L (GM)B525982 & up18-1953-2 T-20953 18-0872
260-GM (INBRD)5907058 & up18-1953-2 T-20953 18-0872
260-GM (INBRD)5907058 & up18-1953-2 T-20953 18-0872
260/5.7 GM (IB)B588506 & up18-1953-2 T-20953 18-0872
260/5.7 GM (IB)B588506 & up18-1953-2 T-20953 18-0872
270-GM2851074 - 3077735--18-0872
280-GM4176250 & up--18-0872
300MR/TRS (GM)6668677 & up18-1953-2 T-20953 18-0872
300MR/TRS (GM)6668677 & up18-1953-2 T-20953 18-0872
320-GM (EFI)A543604 & up18-1953-2 T-20953 18-0872
320-GM (EFI)A543604 & up18-1953-2 T-20953 18-0872
320-GM (EFI)B157603 & up18-1953-2 T-20953 18-0872
320-GM (EFI)B157603 & up18-1953-2 T-20953 18-0872
325-GM2313965 - 3042730--18-0418
325-GM3042731 & up--18-0418
330-GM4623115 & up--18-0418
330-GM/6083145 & up--18-0418
340/7.4L-GM5889914 & up--18-0418
340/7.4L-GM5889914 & up--18-0418
350-GM3780450 & up--18-0418
350-GM (Mag)A635178 & up18-1953-2 T-20953 18-0872
350-GM (Mag)A635178 & up18-1953-2 T-20953 18-0872
350-GM (Mag)B525982 & up18-1953-2 T-20953 18-0872
350-GM (Mag)B525982 & up18-1953-2 T-20953 18-0872
350 (Mag-Trn.Ski)D505450 & up18-1953-2 T-20953 18-0872
350 (Mag-Trn.Ski)D505450 & up18-1953-2 T-20953 18-0872
370 TRS-GM4179554 & up--18-0418
370 TRS-GM6721528 & up18-1957-1 T-20957 18-0418
370 TRS-GM6721528 & up18-1957-1 T-20957 18-0418
390-GM2781129 - 2825059--18-0418
400 TRS-GM4179554 & up--18-0418
420-GMA398941 & up--18-0418
425-GMA398941 & up--18-0418
440 TRS-GM4179554 & up--18-0418
454-GM (Mag)A631894 & up18-1957-1 T-20957 18-0418
454-GM (Mag)A631894 & up18-1957-1 T-20957 18-0418
454 Mag Bravo (GM)B721206 & up18-1957-1 T-20957 18-0418
454 Mag Bravo (GM)B721206 & up18-1957-1 T-20957 18-0418
454 Mag Bravo (Gen V)D805069 & up18-1957-1 T-20957 18-0418
454 Mag Bravo (Gen V)D805069 & up18-1957-1 T-20957 18-0418
460 TRS-GM4179554 & up--18-0418
465C849992 & up--18-0418
4704208730 - 5520114---
4704208730 - 5520114---
4705520115 - 6218036---
500C577254 & up--18-0418
502 Mag Bravo (GM)C878221 & up18-1957-1 T-20957 18-0418
502 Mag Bravo (GM)C878221 & up18-1957-1 T-20957 18-0418
502 Mag Bravo (Gen V)D824589 & up18-1957-1 T-20957 18-0418
502 Mag Bravo (Gen V)D824589 & up18-1957-1 T-20957 18-0418
502 EFID840650 & up18-1957-1 T-20957 18-0418
502 EFID840650 & up18-1957-1 T-20957 18-0418
525D456000 & up--18-0418
888-FORD3108723 & up18-1958-18-0183
888-FORD3108723 & up18-1962-18-0183
898/198-GM4762210 - 621846118-1950-1 T-2095018-0872
898/198-GM4762210 - 621846118-1950-1 T-2095018-0872
898-GM6218462 & up18-1953-2 T-20953 18-0872
898-GM6218462 & up18-1953-2 T-20953 18-0872
5.7-GM (Ski)A338553 & up18-1953-2 T-20953 18-0872
5.7-GM (Ski)A338553 & up18-1953-2 T-20953 18-0872
5.7-GM (Ski)B514627 & up18-1953-1-18-0872
5.7-GM (Ski)B514627 & up18-1953-2 T-20953 18-0872
5.7-GM (Ski)B525982 & up18-1953-1-18-0872
5.7-GM (Ski)B525982 & up18-1953-2 T-20953 18-0872
7.4L Bravo (GM)B771113 & up18-1957-1 T-20957 18-0418
7.4L Bravo (GM)B771113 & up18-1957-1 T-20957 18-0418
7.4L Mag Bravo (Gen V)D603118 & up18-1957-1 T-20957 18-0418
7.4L Mag Bravo (Gen V)D603118 & up18-1957-1 T-20957 18-0418
7.4L w/Hurth (IB)ALL18-1957-1 T-20957 18-0418
7.4L w/Hurth (IB)ALL18-1957-1 T-20957 18-0418
7.4L (IB/LHR/Gen V)D715494 & up18-1957-1 T-20957 18-0418
7.4L (IB/LHR/Gen V)D715494 & up18-1957-1 T-20957 18-0418
8.2L w/Hurth (IB)C878221 & up18-1957-1 T-20957 18-0418
8.2L w/Hurth (IB)C878221 & up18-1957-1 T-20957 18-0418
8.2L (IB) (Gen V)*D857200 & up18-1957-1 T-20957 18-0418
8.2L (IB) (Gen V)*D857200 & up18-1957-1 T-20957 18-0418

Model

Serial Number

Manifold

Manifold

Manifold Gasket

Refine Parts List
Model

(2.5 to 898)
Serial Number

Blowout
Closeout Savings! Limited Quanity, Return Restrictions Apply.
Exhaust Manifold with Mounting Package - Sierra
Your Price: $297.37
Save: $113.78
(27% Off $411.15)
Part # 18-1950-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 77234A2
Port Side
Fits most Mercuiser (GM) small blocks with end riser, (V8) 305-350 cu.in. Models 198, 228, & 898
Supplied with Mounting Package
Use with:
    Exhaust Manifold Gasket: 18-2949
    Mounting Kit: 18-8548
Exhaust Manifold Mounting Package - Sierra
Your Price: $310.99
Save: $108.20
(25% Off $419.19)
Part # 18-1951-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins. Replaces OEM part #
  • MERCURY MARINE 77235A 8
  • MERCURY MARINE 77235A2
Starboard Side
Fits most Mercuiser (GM)small blocks with end riser, (V8) 305-350 cu.in. models 198, 228, & 898.
Supplied with Mounting Package
Use with:
    Exhaust Manifold Gasket: 18-2949
    Mounting Kit: 18-8548
Exhaust Manifold - Sierra
Your Price: $217.99
Save: $64.28
(22% Off $282.27)
Part # 18-1952-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins. Replaces OEM part #
  • MERCURY MARINE 99746A17
  • MERCURY MARINE 99746A8
Fits most 4.3L (229 & 262 CID) V-6 applications, Models 185 & 205, fits Port or Starboard
Supplied with Mounting Package
Use with:
    Mounting Kit: 18-8533
    Manifold Gasket: 18-2909
Exhaust Manifold with Mounting Package - Sierra
Your Price: $177.99
Save: $52.08
(22% Off $230.07)
Part # 18-1953-2
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 860246A10
  • MERCURY MARINE 87114A19
Will fit either side - Fits most Mercruiser(GM) small blocks with center riser, Port & Starboard
Supplied with Mounting Package
Supplied with gaskets
Use with:
    Mounting Kit: 18-8520
Exhaust Manifold - Sierra
Your Price: $507.99
Part # 18-1954-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 95862A5
Fits most late Model 2.5L 153 CID & 3.0L 181 CID with Rochester Carb w/ electrical choke, 5 BOLT PATTERN (1983-89)
Supplied with Mounting Package
Use with:
    Exhaust Manifold Gasket: 18-1204
    End Plate: 18-4009
Mounting Hardware: 18-8549
Exhaust Manifold for Mercruiser 96705A1, GLM 51212 - Sierra
Your Price: $384.99
Save: $29.01
(7% Off $414.00)
Part # 18-1955-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 96705A1
Fits most early Model 3.0L 181 CID with Rochester Carb. 5 bolt pattern and 2.5L, 153CID (1968-82) Port & Starboard, New Style
Supplied with Mounting Package
Use with:
    Exhaust Manifold Gasket: 18-1203
    End Plate: 18-4009
Exhaust Manifold - Sierra
Your Price: $356.99
Save: $105.62
(22% Off $462.61)
Part # 18-1956-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins. Replaces OEM part #
  • MERCURY MARINE 806867A 8
  • MERCURY MARINE 99798A18
Fits most late Model 2.5L 153 CID and 3.0L 181 CID, Model 140 & 3.0 with MerCarb 5 bolt pattern with electric choke (1983-95), Port & Starboard
Supplied with Mounting Package
Use with:
    Exhaust Manifold Gasket: 18-1204
    End Plate: 18-4009
Exhaust Manifold with Mounting Package for Mercruiser 89011A8, GLM 51240, Barr MC-1-89011 - Sierra
Your Price: $194.93
Save: $66.79
(25% Off $261.72)
Part # 18-1957-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 807078A 6
  • MERCURY MARINE 89011A8
Fits most Mercruiser (GM) V-8 big blocks with center riser, 454 cu.in. Models 330, 340 & 7.4L, Port & Starboard
WILL FIT EITHER SIDE
Use with:
    Exhaust Manifold Gasket: 18-0418
    Mounting Kit: 18-8532
Exhaust Manifold Port Only - Sierra
Your Price: $361.99
Save: $74.82
(17% Off $436.81)
Part # 18-1958-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 65604A12
  • MERCURY MARINE 65604A4
Fits most Mercruiser Small block (Ford) (V-8) 302-351 cu.in. Models 215, 225, 233, 255 & 888, PORT SIDE ONLY
Supplied with Mounting Package
Use with:
    Mounting Kit: 18-8509
Use with Manifold Gasket: 18-0183
Exhaust Manifold - Sierra
Your Price: $705.99
Save: $216.82
(23% Off $922.81)
Part # 18-1960-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 58759A10
  • MERCURY MARINE 58759A14
Fits most Mercruiser (GM) Inline 6 Cyl. Engines 250 & 292 cu.in.Models 165 & 200, Port & Starboard
Supplied with Mounting Package
Use with:
    Mounting Kit: 18-8531
    Manifold Gasket 18-2830

Exhaust Manifold - Sierra
Your Price: $350.99
Save: $69.31
(16% Off $420.30)
Part # 18-1962-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 65603A12
  • MERCURY MARINE 65603A4
Fits most Mercruiser Engines (Ford) small block (V-8) 302-351 cu.in. Models 215, 225, 233, 255 & 888, STARBOARD SIDE ONLY
Supplied with Mounting Package
Use with:
    Mounting Kit: 18-8509
    Manifold Gasket: 18-0193
Exhaust Manifold Conversion Kit - Sierra
Your Price: $1981.99
Part # 18-1987-1
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
  • Not for use on engines with high mounted power steering pumps
  • Kit includes:
  • (2) center rise manifolds, (2) exhaust elbows, (1) thermostat housing, 1 thermostat cover, (1) thermostat, all hoses, hardware, gaskets plus complete instructions to do the job right.
  • This manifold kit is designed to convert all Mercruiser stern drive engines with GM 305 & 350 CID blocks that have log style exhaust manifolds and raw water cooling to the newer more efficient center rise manifolds.
  • This Manifold Kit is designed to convert all Mercruiser Stern Drive Engines with GM 305 & 350 CID Blocks that have Log Style Exhaust Manifolds and Raw Water Cooling to the Newer More Efficient Center Rise Manifolds
MANIFOLD, EXHAUST - Mallory
Your Price: $284.99 Discontinued
Save: $74.43
(20% Off $359.42)
Part # 9-40508
No Reviews | Write Review | Ask Question
Manifold
Dry joint style fits 5.0L MPI, 5.7L MPI
350 Mag & 6.2L Mag
OEM # 865735A02
Manifold, V-6 Ctr Riser - Mallory
Holiday Sale Price: $212.99
Save: $46.21
(17% Off $259.20)
Part # 9-40505
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Manifold
Fits both sides of 229 and 262 CID V-6 engines
Use mounting kit 9-40576
OEM 99745, 99746
Manifold W/Mntng Pkg - Mallory
Holiday Sale Price: $311.99
Save: $107.20
(25% Off $419.19)
Part # 9-40504
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Manifold, Starboard - Log style manifold fits 305 - 350 CID V-8 - Use 9-40573 mounting kit
Replaces OEM part #: 77235B, 77235A8
Manifold W/Mntng Pkg - Mallory
Holiday Sale Price: $310.99
Save: $103.01
(24% Off $414.00)
Part # 9-40503
No Reviews | Write Review | Ask Question
Manifold, Port - Log style manifold fits 305 - 350 CID V-8 - Use 9-40573 mounting kit
Replaces OEM part #: 77234B, 77234A7
Manifold, V-8 BB Ctr Riser - Mallory
Your Price: $224.99
Save: $44.01
(16% Off $269.00)
Part # 9-40506
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Manifold - Fits both sides of 454 CID 7.4L V-8 engines - Use mounting kit 9-40575
Replaces OEM part #: 89011
Manifold (Port Only) - Mallory
Holiday Sale Price: $335.99
Save: $87.73
(20% Off $423.72)
Part # 9-40502
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Manifold, Port - Log style manifold fits 302 and 351 CID V-8 - Use mounting kit 9-40572
Replaces OEM part #: 54100, 65604
Mercruiser Manifold - H20 Manifolds
Your Price: $256.92 (Out of stock)
Part # T-20950
No Reviews | Write Review | Ask Question
Replaces:
  • Mercruiser # 77234B
Mercruiser Manifold - H20 Manifolds
Your Price: $245.61
Part # T-20951
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces:
  • Mercruiser # 77235B
Mercruiser Manifold - H20 Manifolds
Your Price: $167.87
Part # T-20952
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces:
  • Mercrusier #'s 99745 and 99746.
Mercruiser Manifold - H20 Manifolds
Your Price: $147.48
Part # T-20953
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces:
  • Mercruiser #'s 87114 and 860246. Updated to replace all small block Mercruiser center riser manifolds to date.
Mercruiser Manifold - H20 Manifolds
Your Price: $156.70
Part # T-20957
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces:
  • Mercruiser # 89011
Mercruiser Manifold - H20 Manifolds
Your Price: $262.88
Part # T-20958
SHIPS TOMORROW!* if ordered in 21 hrs 28 mins.
No Reviews | Write Review | Ask Question
Replaces:
  • Mercruiser #'s 54100 and 65604.
Sierra
Average Customer Review for Exhaust Manifold Mounting Package - Sierra
Based On 1 Review | Write Review
ok
by Martin from Jonquiere, Quebec on June 28, 2014
good delivery time
Was this review helpful?
Average Customer Review for Exhaust Manifold - Sierra
Based On 1 Review | Write Review
satisfied customer
by James from Schertz, Texas on March 18, 2011
The eshaust manifold arrived one day before the promised date and the product was as good if not better than to OEM manifold. 100% satisfied.
(8 of 9 people found this review helpful)
Was this review helpful?
Average Customer Review for Exhaust Manifold - Sierra
Based On 1 Review | Write Review
make sure you order the right manifold
by Timothy from Port Townsend, Washington on October 06, 2013
I was happy with this manifold this time. The only problem is make sure you order the right manifold, I ordered the wrong one the first time, the discription said it would fit, I put the side plates on then tried to put the manifold on the head and it did not fit so I sent it back and they said that they will not refund my money because the side plates were installed.
(1 of 1 people found this review helpful)
Was this review helpful?
Ask a question for
Question & Answer Guidelines
This product ships in 1 to 3 business days.

Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
* Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies