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Sierra 18-3876 Head Gasket for GM 5.0L 5.7L Marine Engines

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-3876
12 reviews
04/23/2036 9:03 AM
Sale Price

$40.47

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Sierra 18-3876 is a premium marine head gasket engineered specifically for GM 5.0L and 5.7L marine engines. This critical engine component creates a reliable seal between the cylinder head and engine block, preventing coolant and oil leaks while maintaining proper compression.

Key Features:

  • Direct replacement for GM marine engines including 305 and 350 cubic inch V8 models
  • Marine-grade construction designed to withstand harsh saltwater and freshwater environments
  • Precision-cut design ensures proper fit and sealing performance
  • Meets or exceeds OEM specifications for reliable engine performance
  • Compatible with OMC, Volvo Penta, and MerCruiser applications using GM base engines

Sierra Marine is a trusted name in marine engine parts, known for manufacturing high-quality replacement components that deliver OEM-level performance. This head gasket is essential for engine rebuilds, overhauls, or replacement during routine maintenance. Proper installation with correct torque specifications is recommended for optimal sealing and longevity.

it was easy to find exactly what i needed, good price and easy check out. Fast delivery. I'll be a repeat customer.

Easy to use

easy

Thanks for a hard to find part!

Pricing is enticing

Grate

To follow up Please call me at home at phone number 707-443-1528

Easy to use website.

Hard to find part in stock

so far so good! best price I could find

This is the easiest purchase I ever made. The visor is great and installation was a breeze. The service by Autoplicity was A-1. Shipping was better than standard. Will buy from them again.

Great Prices, fast shipping. Will be using again!

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