This manifold kit replaces the original one-piece "batwing" manifolds (807293A2, 807294A3, 807293C, 807294C) that came on 1996 and up MerCruiser 4.3L (GM/Chevy) V6 marine gas engines. This kit includes a full gasket and bolt kit. The lower bellows are oval in shape to mate up with your original lower Y-pipe. Each purchase is for one kit to do one engine.

Shipping Note: Due to the weight of these parts, this kit ships in multiple boxes. When you receive your tracking number, be sure to track it on the carrier's website and find the "Other Packages in this Shipment" section to track all of the individual boxes. For standard/ground shipments, they may arrive on different days.

Part number cross reference:

MerCruiser	Manifold:  Riser:	99745,99746, 99746A8, 99746A17 44354, 44354A3, 44354A9, 44354A10,44354A13 807988, 807988A2, 807988A3,807914A1
OscoMotors	Manifold:  Riser:	9745 4354
Barr Marine	Manifold:  Riser:	MC-1-99746 MC-20-44354
Sierra Marine	Manifold:  Riser:	18-1952-1 18-1976-1
HGE	Manifold:  Riser:	9746 4354
Aqua Power	Manifold:  Riser:	5505 5706
GLM Products	Manifold:  Riser: Kit:	51220 51140 58992, 58222

About Sierra
Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra products are engineered to meet or exceed OEM standards, and stand up in harsh marine environments. Every new Sierra part comes with a limited lifetime warranty that covers the useful life of the product against any defects in workmanship and materials.

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