

Specifications
- Brand
- Cometic Gasket
- Part #
- C5381
- UPC
- 191070023539

Cometic Chevy Mark IV Big Block V8 Rear Main Seal 2 Pc Double Split Seal Wet & Dry Sump 86665
$94.75
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Cometic 2-piece rear main seal for Chevy Mark IV Big Block V8 engines. Fits wet or dry sump systems.
Key Features
- Fits 97+ vehicle make/model combinations.
- Two-piece, double-split seal design simplifies installation.
- Suitable for both wet and dry sump oiling systems.
- Meets or exceeds OEM quality standards.
- Designed for Chevrolet Mark IV Big Block V8 engines.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
This Cometic rear main seal is a two-piece, double-split design, meaning it can be installed without removing the crankshaft. It's built to handle the demands of both wet and dry sump oiling systems, making it a versatile choice for your Chevy Mark IV Big Block V8. This seal is designed to meet or exceed OEM quality, ensuring a reliable seal for your engine's crankcase.
The double-split design is a practical choice for many rebuilds and repairs, as it simplifies installation significantly. You won't have to pull the entire crankshaft just to replace this seal. It's constructed from durable materials chosen to withstand the harsh environment within the engine, providing a long-lasting seal against oil leaks. This seal fits a wide range of Chevrolet vehicles from the 1960s through the 1990s, including popular models like the C10 Pickup, Camaro, and Impala.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- C5381
- UPC
- 191070023539
Frequently Asked Questions
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Cometic Chevy Mark IV Big Block V8 Rear Main Seal 2 Pc Double Split Seal Wet & Dry Sump 86665

