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Barr Mercruiser 4 Cylinder Exhaust Manifold - MC-1-99798
Item: #1144867 | Part Number: MC-1-99798
The Barr Mercruiser 4 Cylinder Exhaust Manifold MC-1-99798 is a durable, direct replacement for rusty or cracked marine manifolds on 153 and 181 CID Chevrolet-based Mercruiser engines. Designed for the harsh marine environment, it restores proper exhaust flow and helps maintain engine performance. Easy to install, it's recommended to replace manifolds in pairs along with risers and elbows for best results.
Barr Mercruiser 4 Cylinder Exhaust Manifold - MC-1-99798 Item # 1144867
Description
Quality built replacements for your rusty or cracked Mercruiser exhaust marine manifold on your 153 and 181 CID Chevrolet engine with a direct replacement Mercruiser 120 & 140 HP Exhaust Manifold. Barr exhaust manifolds are built for the marine environment and are easy to install. It is recommended that replacement manifolds be done in pairs and to also replace the risers and elbows at the same time.
Specifications:
- Carburetor has a single idle air adjustment screw with a bolt pattern of 3 11/16" x 2"
- Riser mounting flange with square bolt pattern (2 13/16" x 3 1/16" bolt centers)
- 6-bolt mounting pattern to head
Compatible Models:
- Mercruiser 2.5 L & 3.0L, 153 & 181 cu. in., 120 &140 HP engines
Replaces:
- Barr: MC1-99798
- Mercruiser: 860235A04, 99798A16, 99798A9, 99798A3
- Osco: 9798