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Mercruiser 4.3 Exhaust Manifold Kit on 2040-parts.com

US $400.00
Location:

Austin, Texas, United States

Austin, Texas, United States
Condition:Used Brand:Mercruiser

Bought these a few years ago when I had my I/O sea ray, installed a new block and was planning on converting from the old style exhaust manifolds. What I didn't know was that a different y-pipe was needed. Ended just using the old manifolds rather than pulling the engine again for a new y-pipe. These were installed but boat never ran. Since then I've sold the boat and these have been sitting in my garage.

 

From original listing

Item specifics

 

Condition:

New

Brand:   Sierra

Total weight:

114 lbs

Part number:

18-1952-1 and 18-1976-1 (2 each)

Replaces part number:

99745, 99746, 99746A8, 99746A17, 44354, 807914, 80

Made in:

USA

Fits engines:

MerCruiser 4.3L V6 1985-2002



 

This manifold kit replaces the original manifolds and risers that came on 1985 through 2002 Mercruiser 4.3L engines (GM/Chevrolet V-6). Replaces applications that came with 4 inch outlet cast iron risers, and accepts all OEM brackets and accessories.Please note that this kit does not replace Merc exhaust systems that came with 3 inch outlet risers (measured on O.D. of outlet or I.D. of hose), stainless steel risers, or one-piece exhaust manifolds.

Cross-reference

Part Number

MerCruiser

99745, 99746, 99746A8, 99746A17 and 44354, 807914, 807988

Osco Motors

9745 and 4354

Barr Marine

MC-1-99746 and MC-20-44354

Sierra Marine

18-1952-1 and 18-1976-1

Aqua Power

5505 and 5706

GLM Products

51220 and 5114

 

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