MAR988 Aftermarket Mercruiser Exhaust Elbow GM V6 & V8 Engines (1983-2002) | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Mercruiser Exhaust Elbow GM V6 & V8 Engines (1983-2002) - Part Number: MAR988

A 7-degree wet-seal exhaust elbow for MerCruiser GM V6, small-block V8 and selected big-block V8 engines using the 44354 / 807988 service family. It has a 4-inch outlet and is used on pre-dry-joint exhaust systems.

⚙️ Key Features

• Traditional wet-seal manifold-to-elbow joint

• 7-degree riser angle

• 4-inch exhaust outlet

• Covers GM V6 and V8 engine families

• Used primarily before the 2002 dry-joint changeover

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 807988A03 → Later assembly in the 44354A13 / 807914A1 / 807988 service chain

OEM / Related Numbers:

• MAR988

• 44354A3

• 44354A10

• 44354A13

• 807914A1

• 807988A2

• 807988A03

• 807988A08

• 807988Q03

Aftermarket / Verified Equivalents:

• Recmar: MAR988

• Sierra: 18-1976-1 / 18-1976-2

• Recmar stainless: SED3092600

• Osco: OSC4354

• Mallory: 9-40559

• GLM: 51140

• Barr Marine: MC-20-44354

🚤 Compatibility

Commonly used on:

• MerCruiser wet-seal V6 and V8 exhaust systems

Typically suits:

• Engine models:

• MerCruiser 4.3L V6, approximately 1983-2002

• MerCruiser 5.0L and 5.7L small-block V8, approximately 1983-2002

• MerCruiser 7.4L and 8.2L big-block V8 applications using the 807988 family

• Joint Type: wet seal

• Riser Angle: 7°

• Exhaust Outlet: 4 in

• Year Range: approximately 1983-2002

🔌 Function

The elbow turns exhaust leaving the water-jacketed manifold and introduces cooling water into the 4-inch wet-exhaust outlet.

Common signs of failure:

• External corrosion, cracking or pin-hole leakage

• Internal carbon, rust or salt restriction

• Cooling water entering the manifold, turbocharger or cylinders

• Steam, reduced cooling-water discharge or an abnormally hot exhaust hose

• Loss of power caused by excessive exhaust back-pressure

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging