OSC7387 Aftermarket Crusader GM V8 Exhaust Elbow | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Crusader GM V8 Exhaust Elbow - Part Number: OSC7387

A water-jacketed Crusader exhaust elbow for GM V8 marine engines. It is used on selected small-block and big-block Crusader wet-exhaust packages.

⚙️ Key Features

• Water-jacketed Crusader exhaust elbow

• For GM marine V8 engines

• Marine cast-iron replacement construction

• Matches the OSC7387 elbow pattern

• Use new gasket and mounting hardware

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• OSC7387 (Osco replacement reference)

OEM / Related Numbers:

• OSC7387

Aftermarket / Verified Equivalents:

• Osco: OSC7387

🚤 Compatibility

Commonly used on:

• Crusader GM V8 wet-exhaust systems

Typically suits:

• Engine models:

• Crusader GM 5.0L / 305 CID small-block V8

• Crusader GM 5.7L / 350 CID small-block V8

• Crusader GM 7.4L / 454 CID big-block V8

• Crusader GM 8.2L / 502 CID big-block V8

• Crusader 454XL applications using OSC7387

• Approximate Dimensions: 18 × 20 × 37cm

• Approximate Weight: 2.52kg

🔌 Function

The elbow turns exhaust from the Crusader manifold and introduces seawater before discharge.

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