New Sierra exhaust manifold and riser kit for Mercury/MerCruiser V8 small block marine gas engines (GM Chevrolet 5.7L/350 and 5.0L/305). Fits most engine years 1983 to 2002 that used 4-inch outlet cast iron "wet-joint" risers (see images for comparison of wet and dry joint). Accepts all factory original accessories and brackets. Kit includes 2 manifolds, 2 risers, 2 lower water fittings, and all mounting bolts, plugs, and gaskets. Each purchase is for one engine kit.

Notes

• Does not replace dry-joint, stainless steel, or 3" OD outlet risers (for 3" ID hose).
• If you also need 3" tall riser spacer blocks, look for the Sierra 18-1908 listing.
• This kit ships in multiple boxes. When you receive your tracking number, be sure to track it on the carrier's website to view all packages (they may arrive on different days).

This kit is new and high-quality cast iron construction by Sierra Marine, a Dometic brand. To determine if this is the correct replacement for you, look on your current part for casting numbers and match them to the cross reference below:

Cross Reference	Part Number
MerCruiser	Manifold: 87114, 87114A8, 87114A19, 87114A30, 860246, 860246A3, 860246A7, 860246A9, 860246A10, 860246A15, 860246 C, 860246Q11, Riser: 44354, 44354A3, 44354A9, 44354A10, 44354A13, 807988, 807988A2, 807988A03, 807914A1
Osco	Manifold: 7114B2, Riser: 4354
Barr Marine	Manifold: MC-1-87114, Riser: MC-20-44354
Sierra Marine	Manifold: 18-1953-2, Riser: 18-1976-2, 18-1976-1
HGE	Manifold: 7114, Riser: 4354
Aqua Power	Manifold: 5500, Riser: 5706
GLM	58232, Manifold: 51230, Riser: 51140

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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