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Cometic C4317-051 MLS Cylinder Head Gasket for Nissan RB25DE/RB25DET 86mm Bore

Part of: Cometic MLS Cylinder Head Gasket Bore Honda

Other options in this family: Cometic C4311-040 Cometic C4251-030 Cometic C4232-030 Cometic C4962-028 Cometic C5434-051

Manufacturer

Picture for manufacturer Cometic

Part Number

C4317-051
15 reviews
Sale Price

$173.21

1 left at this price

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Usually delivered within 2 days

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Product Details

The Cometic C4317-051 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Nissan RB25DE and RB25DET engines. This precision-manufactured gasket features an 86mm bore diameter and 0.051-inch compressed thickness, making it ideal for both stock rebuilds and performance applications.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme cylinder pressures
  • 86mm bore diameter designed for RB25 engine specifications
  • 0.051-inch (1.30mm) compressed thickness for precise compression ratio tuning
  • Embossed stainless steel layers with elastomeric coating ensure optimal sealing
  • Withstands high boost applications and elevated combustion temperatures
  • Direct replacement for OEM head gasket with improved performance characteristics

Cometic MLS gaskets are the preferred choice for engine builders and performance enthusiasts due to their ability to withstand extreme conditions while maintaining a reliable seal. The multi-layer design allows for minor surface imperfections and engine movement, reducing the risk of gasket failure in high-performance applications.

Products specifications

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Multi-layer Steel

Good transaction

Quick shipping on two of three orders.

Ghhh

Easy order. We will see how fast its gets here!

Good service

The customer service dept was very helpful with getting part I needed. I am very grateful

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Great prices, reasonable shipping costs. Shipped within 3 days of order. Didn't receive discount for valid coupon code (25OffShipping). No response to 2 emails. No indication of expected delivery date. Lots of unknowns but you can't beat the pricing.

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