Marine Parts & Accessories
Mercruiser Precision Parts keep your engines
in good, safe operating condition.
Insist on ONLY Mercruiser Factory Parts!
Why should buy only Mercruiser Exhaust Manifolds?
- Mercruiser manifolds are a great value.
- Mercruiser Manifolds have a one year factory warranty!
- Mercruiser Manifolds are a perfect fit every time.
- Mercruiser Manifolds are designed for excellent performance.
- Mercruiser Manifolds last longer.
- Mercruiser Manifolds are factory painted!
- Girls like guys with Mercruiser Manifolds!
Example #1: Customer buys a cheaper Barr brand manifold to save a few bucks.
His new manifold leaks water into his engine and ruins his 454 Mercruiser.
Customer calls Barr and they say, "Yes Sir, it's under warranty."
"Just send us back the manifold for inspection and if it's really defective,
we will send you a new manifold!"
Example #2: Customer buys a Mercruiser exact replacement manifold.
A very unlikely event occures and a defect in the manifold ruins
his 454 Mercruiser Engine. Customer takes his boat to an authorized
Mercruiser Dealer. The Mercruiser Dealer repairs or replaces the engine
as needed and installs a new manifold.
The difference could literally be thousands of dollars!
Yes, Mercruiser manifolds are more expensive.
A clogged manifold or elbow will cause a high speed overheat.
An overheating engine will also damage an outdrive as well!
Manifolds last an average of 2 to 4 years.
A leaking manifold will destroy your engine.
Never "acid clean" an exhaust manifold unless it's just to
remove some surface rust.
Is your exhaust starting to bellow white steam?
This an indication of a serious problem and it won't be long
before you ruin your engine.
| Model | Cyl | Years | Serial numbers | Front end cap | Rear end cap | Exh. Elbow | Exh Manifold-Port | Exh Manifold-Stb | Front cap gasket | Rear cap gasket | Exh manifold gasket | Exh elbow gasket |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 110 | L4 | 1963-66 | 1537270-2044033 | NLA | nla | nla | nla | na | nla | nla | 27-52546 | nla |
| 120 | L4 | 1966-82 | 2046625-6229717 | NLA | nla | 55538a2 | 63122a13 | na | 27-39917 | 27-39923 | 27-52546 | 27-39915 |
| 120/2.5L | L4 | 1983-89 | 6229718-0C853255 | 60252a2 | 805629a1 | 76325a2 note3 | 806867a2 note7 | na | 27-480431 | 27-807218 | 27-96429 | 27-997772 |
| 140 | L4 | 1968-82 | 2508261-6229717 | 60252a2 note1 | 73813a1 | 76351a2 | 96705a1 | na | 27-480431 | 27-480431 | 27-53354 | 27-997772 |
| 140/3.0L | L4 | 1982-95 | 6229718-0F603999 | 60252a2 | 805629a1 | 76351a2 note3 | 806867a2 note7 | na | 27-480431 | 27-807218 | 27-96429 | 27-997772 |
| 3.0LX | L4 | 1990-95 | 0C856559-0F426999 | na | na | 12076a2 | 815560a7 note2 | na | na | na | 27-815528 | 27-997772 |
| 3.0L/LX | L4 | 1995 & NEWER | 0F427000 & UP | 73813a1 | 805629a1 | 12076a2 | 806867a3 | na | 27-807218 | 27-807218 | 27-815528 | 27-997772 |
| 165/170/3.7L | L4 | 1985-89 | 6916779-0C762299 | na | na | 98562a6 | 816219a5 note1b | na | na | na | 27-68715 | 27-18272 |
| 165/170/3.7L | L4 | 1985-89 | 6916779-0C762299 | na | na | 90880a2 | 816219a4 note2b | na | na | na | 27-68715 | 27-856705 |
| 180/190/3.7LX | L4 | 1985-89 | 6916779-0C762299 | na | na | 98562a6 | 816219a5 note1b | na | na | na | 27-68715 | 27-18272 |
| 180/190/3.7LX | L4 | 1985-89 | 6916779-0C762299 | na | na | 90880a2 | 816219a4 note2b | na | na | na | 27-68715 | 27-856705 |
| 470MCM | L4 | 1976-77 | 4208730-4625579 | nla | nla | 76351a2 | 71527a17 | na | 27-480431 | 27-480431 | 27-68715 | 27-997772 |
| 470MCM/MIE | L4 | 1977-82 | 4625580-6218036 | nla | nla | 76351a2 | 71527a17 | na | 27-480431 | 27-480431 | 27-68715 | 27-997772 |
| 470MCM | L4 | 1983-84 | 6218037-6916778 | na | na | 90880a2 | 816219a4 | na | na | na | 27-68715 | 27-856705 |
| 485 | L4 | 1980-82 | 5685394-6218036 | na | na | 90880a2 | 816219a4 | na | na | na | 27-68715 | 27-89657 |
| 488 | L4 | 1983-84 | 6170297-6916778 | na | na | 90880a2 | 816219a4 | na | na | na | 27-68715 | 27-856705 |
What?! You didn't find what you need?
Then it's time to call our parts experts.
Give our parts guy a call. He will find your part!
Email us at Sterndrives.com