COMETIC High Performance Top End Gasket Kit - MLS Head Gasket & Durable Seals for Powersports Engines

Description

Elevate your powersports engine's performance and durability with COMETIC's premium top-end gasket kit. Engineered for high-performance applications, this comprehensive kit ensures reliable sealing, reduced leaks, and enhanced engine efficiency for riders demanding maximum power and longevity.

Key Features

  • Multi-Layer Steel (MLS) Head Gasket: Constructed from high-grade MLS material for superior heat resistance and sealing integrity under extreme engine conditions.
  • One-Piece Fuel-Injected Fuel Injector O-Ring: Precision-engineered to prevent fuel leaks and maintain optimal fuel delivery in modern fuel-injected systems.
  • TPU Rubber Coated Steel Spine Valve Cover Gasket: Combines flexible TPU rubber with steel reinforcement for enhanced durability and resistance to oil and heat degradation.
  • 0.027" Thin Head Gasket: Optimized thickness for improved engine breathing while maintaining structural integrity under high compression and thermal stress.

Why Choose This Product

Cometic's top-end gasket kit is designed for riders who demand uncompromising performance from their powersports engines. The combination of MLS technology, advanced TPU materials, and precise engineering ensures exceptional sealing capabilities, reducing the risk of head gasket failure, oil leaks, and performance loss. This complete kit includes all necessary components for cylinder head service, saving time and labor during engine rebuilds or maintenance. Its compatibility with a wide range of high-performance engines makes it an essential upgrade for racers, off-road enthusiasts, and performance-oriented riders seeking reliable, long-lasting engine protection.

SKU: GM2874E4FC
MPN: C7143
UPC: 191070030797
Category: Gaskets/Seals
Brand: Cometic
Stock: Only 3 left!
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Elevate your powersports engine's performance and durability with COMETIC's premium top-end gasket kit. Engineered for high-performance applications, this comprehensive kit ensures reliable sealing, reduced leaks, and enhanced engine efficiency for riders demanding maximum power and longevity.

Key Features

  • Multi-Layer Steel (MLS) Head Gasket: Constructed from high-grade MLS material for superior heat resistance and sealing integrity under extreme engine conditions.
  • One-Piece Fuel-Injected Fuel Injector O-Ring: Precision-engineered to prevent fuel leaks and maintain optimal fuel delivery in modern fuel-injected systems.
  • TPU Rubber Coated Steel Spine Valve Cover Gasket: Combines flexible TPU rubber with steel reinforcement for enhanced durability and resistance to oil and heat degradation.
  • 0.027" Thin Head Gasket: Optimized thickness for improved engine breathing while maintaining structural integrity under high compression and thermal stress.

Why Choose This Product

Cometic's top-end gasket kit is designed for riders who demand uncompromising performance from their powersports engines. The combination of MLS technology, advanced TPU materials, and precise engineering ensures exceptional sealing capabilities, reducing the risk of head gasket failure, oil leaks, and performance loss. This complete kit includes all necessary components for cylinder head service, saving time and labor during engine rebuilds or maintenance. Its compatibility with a wide range of high-performance engines makes it an essential upgrade for racers, off-road enthusiasts, and performance-oriented riders seeking reliable, long-lasting engine protection.

SKU GM2874E4FC
MPN C7143
UPC/GTIN 191070030797
Brand Cometic
Category Gaskets/Seals
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Reviews

Make Model Years
Kawasaki KX450 2019-2025
Kawasaki KX450X 2020-2025

Frequently Asked Questions

Yes, confirmed fitment for 2019-2025 KX450 and 2020-2025 KX450X models.

Yes, 0.027" MLS head gasket is typically thicker than OEM; check piston-to-valve clearance.

Yes, complete top-end kit includes all gaskets needed for cylinder head removal/install.

Yes, compatible with most aftermarket big bore kits for these models when using 0.027" thickness.

Installation Guide

Difficulty Medium
Est. Time 2 hr 0 min

Tools Required

  • torque wrench
  • socket set
  • gasket scraper
  • feeler gauges
  • piston stop tool

Pro Tips

  • Always measure compression before teardown
  • Use assembly lube on cam lobes
  • Torque head bolts in criss-cross pattern in 3 stages

Common Mistakes to Avoid

  • Not verifying piston-to-valve clearance with thicker MLS gasket
  • Over-torquing head bolts
  • Not cleaning mating surfaces thoroughly

Comparison vs Stock/OEM

MLS construction vs OEM single-layer; superior sealing under high compression/boost

Improvements

  • Better heat resistance
  • Improved sealing on high-performance builds
  • Reusable if undamaged

Considerations

  • Requires precise torque specs
  • Verify clearance due to thickness

Durability & Warranty

Expected Lifespan Match engine rebuild interval (40-100 hours racing)
Warranty 1 year manufacturer defect warranty
Maintenance Inspect during every top-end service; replace if damaged

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