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Sierra MerCruiser V6 One-Piece Exhaust Manifold Conversion 807293A2 807294A3
By Sierra
Part #2x18-1952-1,2x18-1976-2
WarrantyLimited Lifetime
Made InTaiwan
Shipping Wt141 lbs

$1,093.53 US

Free Shipping to the Lower 48 US States
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Product Description

This Sierra manifold conversion kit replaces the original one-piece "batwing" marine manifolds (807293A2, 807294A3, 807293C, 807294C) that came on some 1996 and up MerCruiser 4.3L (GM/Chevy) V6 marine gas engines. It can also replace regular two-piece exhaust systems that utilized the same manifolds, risers, and elbows. Be sure to check the cross reference below.

Each purchase is for one kit to do one engine, and includes the necessary gaskets, clamps, and hardware. Note: Riser gaskets are the standard 2-slot style for typical raw-water cooled setups. If you require 4-slot or block-off, please contact us ahead of time.

Kits Contents
  • Qty 2: 18-1952-1 Manifolds (Includes 18-2909 manifold gaskets, 18-0897 riser gaskets, and 18-4224 drains)
  • Qty 2: 18-1976-2 Risers
  • Qty 2: 18-2748 Round Bellows (Upper, connects risers and elbows)
  • Qty 2: HGE 4478 Elbows
  • Qty 2: 18-2746 Oval Bellows (Lower, connects elbows to original Y-pipe)

Y-Pipe Note: If your lower Y-pipe has a 13" circumference, you will need Sierra 18-2770 bellows rather than 18-2746, as well as larger hose clamps. Please measure before ordering and contact us for help.

Shipping Note: This kit ships in multiple boxes. When you receive the tracking number, track it on the carrier's website to see the individal boxes. For standard/ground shipments, they may arrive on different days.

Part number Cross Reference
MerCruiserManifold:807293A2, 807294A3, 807293C, 807294C, 99745, 99746, 99746A8, 99746A17
Riser:44354, 44354A3, 44354A9, 44354A10, 44354A13, 807988, 807988A2, 807988A3, 807914A1
Barr MarineManifold:MC-1-99746
Sierra MarineManifold:18-1952-1
Aqua PowerManifold:5505
GLM ProductsManifold:51220
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$1,093.53 US

Free Shipping to the Lower 48 US States
Out of stock
Notify when in stock

Product Specifics

Made InTaiwan
FitsMerCruiser 4.3L V6 1996-2000
Item Weight120.5 lbs
Manufacturer #2x18-1952-1,2x18-1976-2
MaterialCast Iron
Part #2x18-1952-1,2x18-1976-2
Product TypeManifold Kit
Replaces807293A2, 807294A3, 807293C, 807294C, 807293
Shipping Dims20" x 18" x 16"
Shipping Wt141 lbs
WarrantyLimited Lifetime

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