Mercruiser GM Small Block V8 (198, 228, 898) Sterndrive Exhaust Manifold Exploded View

Sierra
Mercruiser GM Small Block V8 (198, 228, 898) Sterndrive Exhaust Manifold Exploded View
Mercruiser Sterndrive Exhaust Manifold Exploded View Diagram and Parts
Fits GM Small Block V8 305-350 cu. In.
Models 198, 226 & 898
Figure #DescriptionO.E.M. #Sierra #Application
1MANIFOLD (STARBOARD)774235A2 18-1951-1 
2MANIFOLD ELBOW76771A3 18-1978Use with Manifolds: 18-1950-1, 18-1951-1; Elbow Gasket 18-2833; Mounting Kit 18-4362.
3MOUNTING STUD16-49545 18-32333/8-24, 3/8-16 X 1 3/4. Included in 18-4362 mounting kit.
4MOUNTING STUDN/ANSSIncluded in 18-8554 mounting kit.
5MOUNTING BOLTN/ANSSIncluded in 18-8512 mounting kit.
6ELBOW GASKET27-99777-2 18-2833Use with Elbows: 18-1971 & 18-1978. Included in 18-4362 mounting kit.
7MANIFOLD ELBOW76351A2 18-1971Use with Manifolds: 18-1950-1, 18-1951-1; Elbow Gasket 18-2833; Mounting Kit 18-4362.
8MANIFOLD SPACER61851 18-19063" Spacer for Manifold: 18-1950-1, 18-1951-1. Use with mounting kit 18-8554 with 18-1971 or 18-1978 Elbows.
9BLOCK OFF PLATE60207 18-4008Use with Manifolds 18-1950-1, 18-1951-1. Requires (2) 18-2833 elbow gaskets
10MANIFOLD (PORT)77234A2 18-1950-1 
11END PLATE60252A2 18-4009Use with (Port & Starboard) Manifolds: 18-1950-1 & 18-1951-1; Mounting Kit: 18-8512
12FRONT/END PLATE GASKET27-48043-1 18-2832Fits Port & Starboard Caps of Manifolds: 18-1950-1, 18-1951-1. Use with Front Plate: 18-4009; End Plate: 18-1912. Included in 18-8512 mounting kit.
13END PLATE54870 18-1912Fits Manifold: 18-1950-1, 18-1951-1; Mounting Kit: 18-8512.
14MANIFOLD GASKET96306 18-2949Use with Manifold: 18-1951-1
15MOUNTING BOLTN/ANSSIncluded in 18-8520 mounting kit.
16MOUNTING KITN/A 18-8520Use with Manifolds: 18-1950-1, 18-1951-1. Includes 18-2949 manifold gasket.
17MOUNTING KITN/A 18-8512Use with Front/End Plates: 18-4009, 18-1912. Includes 18-2832 front end plate gasket
18MOUNTING KITN/A 18-8554Use with Manifold Spacer: 18-1908 with Riser 18-1971 or 18-1978 Elbows. Included in 18-1908K. Includes (1) 18-2849 & 18-0897 elbow gaskets.
19MOUNTING KITN/A 18-8514Use with Elbows: 18-1971 & 18-1978. Includes 18-2833 gasket & 18-4008 block off plate.
20MOUNTING KITN/A 18-4362Use with Elbows: 18-1971 & 18-1978. Includes 18-2833 elbow gasket.
21HARDWARE KITN/A 18-8548Includes only hardware for 18-1950-1 & 18-1951-1 manifolds. Included in 18-8520 mounting kit.
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarReview for Exhaust Manifold Elbow Mounting Package for Mercruiser, Barr MC20-60426P, GLM 5
by a Customer on May 28, 2009
(1 of 2 people found this review helpful)
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Average Customer Review for Sierra 18-1971 Exhaust Manifold Elbow
Full StarFull StarFull StarFull StarFull Star Based On 2 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarGood part
by Glen from Shaunavon, Saskatchewan on February 01, 2015
Elbow fit well, and looks well built.
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Full StarFull StarFull StarFull StarFull StarEXCELLENT AFTERMARKET PART
by James from Hamptonville, North Carolina on September 27, 2011
This elbow is far superior to the "stock" units that are no longer available. It is solid cast for as twin-wall and the bolt mating end is stainless steel!
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull Starok
by Martin from Jonquiere, Quebec on June 28, 2014
good delivery time
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star Based On 7 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarPerfect fit!
by Richard from Tampa, Florida on October 20, 2015
Package came on time and included two gaskets for multiple applications. Perfect fit!
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Full StarFull StarFull StarFull StarFull StarFits
by Adam from Bowling Green, Kentucky on March 03, 2014
Fits, that all that's required. Does the job.
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Full StarFull StarFull StarFull StarFull Staralways nice parts
by Jay from Victor, Montana on October 06, 2013
great fitting as usual. Thanks for the great service .Jay
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Full StarFull StarFull StarFull StarFull StarGood
by Zach from West Valley, Utah on September 07, 2012
This worked on my engine perfectly. I have a 1974 Mercruiser with a 302 Ford in it.
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Full StarFull StarFull StarFull StarEmpty StarProduct was fine, severe shipping issues
by Mike from Lumberton, North Carolina on May 18, 2012
Product was fine. Logistics at iboats getting the product shipped in a timely manner needs work. It was not shipped for 24 hours after I ordered the product.
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Full StarFull StarFull StarFull StarFull Starexhaust gasket
by Ron from Bellflower, California on May 30, 2011
fixed our problem. thanks
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarReview for Sierra 18-2833 Exhaust Elbow Gasket
by a Customer on October 06, 2008
perfect
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarHalf Star Based On 2 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Starnone
by Roger from Ocean Isle Beach, North Carolina on November 17, 2011
none
(0 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty StarReview for Sierra 18-8520 Exhaust Manifold Mounting Kit
by a Customer on May 28, 2009
(0 of 3 people found this review helpful)
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Average Customer Review for End Cap Gasket - 18-2832-9 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull Stargasket
by Ron from Bellflower, California on May 30, 2011
perfect fit works great
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarEmpty Star"New" old parts
by James from Hamptonville, North Carolina on September 24, 2011
Very nicely cut, fits bolt pattern. However, seems a smidge thinner than OE.
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Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarReview for Sierra 18-8554 Exhaust Elbow Mounting Kit
by a Customer on May 28, 2009
(0 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarEmpty StarReview for Sierra 18-8512 Exhaust Elbow Mounting Kit
by a Customer on May 28, 2009
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Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarReview for Sierra 18-8514 Exhaust Elbow Mounting Kit
by a Customer on May 28, 2009
(0 of 1 people found this review helpful)
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Q:
I want to know what comes in the mountain package?
A:
It is supplied with end cap gasket, elbow gasket, plugs, etc. It will be the same as what is pictured in 18-1951-1 on our site. http://www.iboats.com/Exhaust-Manifold-With-Mounting-Package-18-1951-1-Sierra/dm/view_id.221752
Q:
The Volvo OEM part?
A:
Replaces Volvo OEM #'s: 835966 & 856034.
Q:
Does this include TWO gaskets per kit (both sides of engine) or just one?
A:
This does not come in a pair. This comes with one single gasket. The part number for just the gasket is 18-2949.
Q:
Are the bolts avaliable seperatly?
A:
No they are not sold separately.
Q:
I just took down my 1975 198. I found that the port side elbow riser did not have a blocking plate and the starboard side does. Should both sides have the blocking plate?
A:
Yes both sides should have a blocking plate
Q:
Will this come with gaskets?
A:
No, each gasket you'll need to by individual or they might have a gasket set depending on your engine application. This is just the manifold alone.
Q:
What is the diameter 3 or 3 1/2?
A:
The diameter is 3-1/2 inches.
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Your Price: $9.57
Save: $4.49
(31% Off $14.06)
Part # 18-4362 ValueShip™ Eligible
Replaces OEM part #
  • BARR MC20-60426P
Use with:
    Elbow: 18-1971 & 18-1978
Includes 18-2833 elbow gasket
Your Price: $128.00
Save: $46.62
(26% Off $174.62)
Part # 18-1971 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
Hurry! Only 1 left in stock
Replaces OEM part #
  • MERCURY MARINE 76351A2
  • MERCURY MARINE 76351A04
  • MERCURY MARINE 76351A1
  • MERCURY MARINE 60426A1
  • MERCURY MARINE 49964A2
  • MERCURY MARINE 49964A1
  • BARR MC20-60426P
For: most early model Mercruiser 140 HP (4 cyl) applications

Use with:
  • Manifold: 18-1960-1, 18-1958, 18-1950-1, 18-1951-1, 18-1962, 18-1954-1, 18-1955-1, 18-1956-1
  • Elbow Gasket: 18-2833
  • Mounting Kit: 18-4362
Your Price: $248.27
Save: $175.15
(41% Off $423.42)
Part # 18-1951-1
SHIPS TOMORROW!* if ordered in 18 hrs 16 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
Your Price: $3.99
Save: $1.21
(23% Off $5.20)
Part # 18-2833-9 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
Replaces OEM part #
  • MERCURY MARINE 27-99777-2
Package of 2
Use with Elbows: 18-1971, 18-1978 & 18-1972. Included in 18-4362 mounting kit
Your Price: $15.99
Save: $3.77
(19% Off $19.76)
Part # 18-8520 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
For: Mercruiser GM Small Block V8 305-350cu.in. (Models: 198, 200, 228, 230, 260, 898)

Used with:
    Manifold: 18-1950-1,18-1951-1, 18-1953-2
Includes 18-2949 manifold gasket
Your Price: $24.45
Save: $1.86
(7% Off $26.31)
Part # 18-8548 ValueShip™ Eligible
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Includes only Hardware for 18-1950-1 & 18-1951-1 manifolds
Included in 18-8520 mounting kit
Your Price: $21.87
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(33% Off $32.86)
Part # 18-2949-9 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
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Pkg of 2
Replaces OEM part #
  • CRUSADER 96306
  • BARR CHV-47-000
  • VOLVO 835966-3
  • VOLVO 856034-4
  • MERCURY MARINE 27-33395
  • MERCURY MARINE 27-33395B

Use with:
  • 18-1931-1: Manifold
  • 18-1986-1: Manifold
  • 18-1997-1: Manifold
  • 18-1902: Manifold
  • 18-1903: Manifold
  • 18-1904: Manifold
  • 18-1914: Manifold
  • 18-1925: Manifold
  • 18-1926: Manifold
  • 18-1950-1: Manifold
  • 18-1951-1: Manifold
  • 18-1953-2: Manifold
For:
  • AQ200, 225, 260, 271, 290, 311, V-8

Your Price: $97.64
Save: $40.07
(29% Off $137.71)
Part # 18-1906 ValueShip™ Eligible
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Replaces OEM part #
  • MERCURY MARINE 61851
3" Spacer for 18-1950, 18-1950-1, 18-1951, 18-1951-1, 18-1958 & 18-1962 manifolds
Use with mounting 18-8554 with 18-1971 or 18-1978 elbows
Your Price: $2.74
Save: $0.46
(14% Off $3.20)
Part # 18-2832-9 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
Replaces OEM part #
  • MERCURY MARINE 27-48043-1
Package of 2
Fits Port & Starboard Caps of Manifold: 18-1960-1, 18-1950-1, 18-1951-1, 18-1958, 18-1962, 18-1954-1, 18-1955-1, 18-1956-1
Use with Front Plate: 18-4009
End Plate: 18-1912
Included in 18-8512 mounting kit
Your Price: $8.93
Save: $3.33
(27% Off $12.26)
Part # 18-4008 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
Replaces OEM part #
  • MERCURY MARINE 60207
Use with:
    Riser: 18-1971, 18-1978
    Manifolds: 18-1950-1, 18-1951-1, 18-1958, 18-1962
Requires (2) 18-2833 elbow gaskets
Your Price: $35.03
Save: $19.00
(35% Off $54.03)
Part # 18-8554 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
For: Mercruiser 229 and 262 ci V6, 305 and 350 SB V8, 454 Big Block V8.

Used with:
    Riser Kit: 18-1908K and 18-1908 Spacer
    Riser: 18-1970-1, 18-1971, 18-1978
    Manifold: 18-1952-1
    Manifold Spacer: 18-1906
Use 18-8554 Mounting Kit when 18-1908 Spacer, 18-1970-1 Elbow and 18-1974 Elbow are used together
Included in 18-1908K
Includes (1) 18-2849 & 18-0897 elbow gaskets
Your Price: $52.15
Save: $29.34
(36% Off $81.49)
Part # 18-4009 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
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Replaces OEM part #
  • MERCURY MARINE 60252A2
Use with:
    Manifold: 18-1960-1, 18-1958, 18-1950-1, 18-1951-1, 18-1962, 18-1954-1, 18-1955-1, 18-1956-1
    End Plate Gasket: 18-2832
    Mounting Kit: 18-8512
Your Price: $259.06
Save: $159.12
(38% Off $418.18)
Part # 18-1950-1
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
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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
Your Price: $242.97
Save: $91.05
(27% Off $334.02)
Part # 18-1978 ValueShip™ Eligible
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Replaces OEM part #
  • MERCURY MARINE 76771A2
  • MERCURY MARINE 76771A3
For: V-8 Inboard Applications Only
Use with:
    Manifold: 18-1950-1, 18-1951-1, 18-1958, 18-1962, 18-1954-1, 18-1955-1, 18-1956-1
    Elbow Gasket: 18-2833
    Mounting Kit: 18-4362
Exhaust Manifold Elbow Mounting Kit - Sierra
Your Price: $10.05
Save: $3.55
(26% Off $13.60)
Part # 18-8512 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
For: Mercruiser GM 4 Cylinder 181cu.in. (Models:120, 140, 2.5L, 3.0L), GM Inline 6 Cylinder 250-292cu.in. (Models: 165 and 200), Ford Small Block V8 302-351cu.in. (Models: 215, 225, 233, 255, 888), GM Small Block V8 305, 350cu.in. (Models: 198, 228, 898)

Used with:
    Front Plate: 18-4009
    Rear Plate: 18-1912
Includes 18-2832 gasket
Your Price: $28.00
Save: $10.94
(28% Off $38.94)
Part # 18-8514 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
For: Mercruiser Ford Small Block V8 302-351cu.in. (Models: 215, 225, 233, 255, 888), GM Small Block V8 305-351cu.in. (Models: 198, 228, 898)

Used with:
    Riser: 18-1971 & 18-1978
    (Not for Fresh Water/Closed Cooling Systems)
Includes 18-2833 gasket & 18-4008 block off plate
Your Price: $118.99
Save: $57.27
(32% Off $176.26)
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Barr and Indmar Riser, 3" Outlet, 30° down angle.


Replaces OEM #:

  • Barr 20-0102
  • Indmar 53-2009 and 53-2018

Engine Type:
Ford Small Block V8 302-351 cu.inGM Small Block V8 305-350 cu.in.


Engine Model:
Universal fit

Your Price: $245.61
Save: $173.58
(41% Off $419.19)
Part # T-20951
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
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Manifold, starboard, Log style manifold


Replaces OEM #:

  • Mercruiser # 77235B


Engine Type:
GM Small Block V8 305-350 cu.in.


Engine Model:
198, 228 and 898

Your Price: $164.97
Save: $94.23
(36% Off $259.20)
Part # T-20952
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
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Mercruiser Manifold


Replaces OEM #:

  • Mercrusier 99745
  • Mercruiser 99746

*Fits both sides of engine.


Engine Type:
GM V6 229 and 262 cu.in.


Engine Model:
185 and 205

Your Price: $257.89
Save: $147.37
(36% Off $405.26)
Part # T-20982
SHIPS TOMORROW!* if ordered in 18 hrs 16 mins.
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Crusader Manifold


Replaces OEM #:

  • Crusader 98125

Engine Type:

GM Big Block V8 454 cu.in.


Engine Model:
454XL and 502XL