53114A1 Aftermarket Mercruiser Exhaust Elbow Bellows GM 181 & 250 (1967-82) | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Mercruiser Exhaust Elbow Bellows GM 181 & 250 (1967-82) - Part Number: 53114A1

A stepped rubber exhaust bellows connecting the exhaust elbow and pipe on early MerCruiser GM inline-four and inline-six engines. It accommodates engine movement while sealing the wet exhaust path.

⚙️ Key Features

• Stepped 3-inch to 2-1/2-inch internal diameters

• Marine wet-exhaust rubber construction

• Absorbs vibration and minor alignment movement

• For early 120HP, 140HP, 160HP and 165HP systems

• Use new stainless clamps during installation

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 53114A1 → Supersedes 53114

• OMC 0775481 is a documented cross-reference

OEM / Related Numbers:

• 53114A1

• 53114

• OMC 0508694

• OMC 0775481

Aftermarket / Verified Equivalents:

• Sierra wet-exhaust bellows equivalent for 53114A1

🚤 Compatibility

Commonly used on:

• Early MerCruiser GM inline-engine wet-exhaust systems

Typically suits:

• Engine models:

• MerCruiser 120HP / GM 153 CID / 2.5L, approximately 1967-1982

• MerCruiser 140HP / GM 181 CID / 3.0L, approximately 1968-1982

• MerCruiser 160HP and 165HP / GM 250 CID inline-six, approximately 1967-1981

• Large-End ID: 3 in

• Small-End ID: 2-1/2 in

• Engine Families: GM 153, 181 and 250 CID

🔌 Function

The bellows carries cooled exhaust and seawater between rigid components while absorbing vibration and thermal movement.

Common signs of failure:

• Water or exhaust leakage at the bellows

• Cracks, splits or hardened rubber

• Loose or corroded clamps

• Collapsed internal bore restricting exhaust flow

• Soot or salt deposits around either connection

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging