Athena 4-Stroke Top-End Gasket Kit
Athena 4-Stroke Top-End Gasket Kit
About this product
About this product
Prepare your 4-stroke engine for peak performance with the Athena 4-Stroke Top-End Gasket Kit. Engineered for professional, semi-pro, and amateur riders, this kit provides everything needed for a crucial mid-season refresh or pre-race engine overhaul.
Description
The Athena Top-End Gasket Kit (P400270620037) is meticulously crafted for the demanding environment of competitive riding, ensuring your 4-stroke engine maintains optimal power and reliability. This comprehensive kit is ideal for riders performing routine engine freshen-ups before a race or during the mid-season, aiming to restore peak performance.
At its core, the kit features a top-of-the-line Multi-Layer Steel (MLSS) head gasket, renowned for its superior sealing capabilities and durability under extreme conditions. What truly sets this kit apart is the inclusion of two or more premium quality base gaskets, each of a different thickness. This thoughtful addition empowers you to precisely optimize your engine's compression ratio, allowing you to fine-tune performance based on your fuel choice – whether it's standard pump gas with stock compression or high-octane race fuel requiring a higher compression setting for maximum power output. This flexibility ensures your engine is always perfectly matched to your riding demands and fuel availability, making it an essential engine refresh kit for serious riders.
Features & Highlights
- Race-Ready Engine Refresh: Specifically designed for pro, semi-pro, and amateur riders needing to freshen up their 4-stroke engine before races or during mid-season to restore peak performance and reliability.
- Advanced MLSS Head Gasket: Includes a top-of-the-line Multi-Layer Steel (MLSS) head gasket, providing superior sealing integrity and long-lasting durability for high-performance applications.
- Optimized Compression Ratios: Features two or more premium quality base gaskets of varying thicknesses, allowing precise adjustment of your engine's compression ratio for customized power delivery.
- Fuel Versatility: Enables riders to choose between using standard gasoline with stock compression or race gas with a higher compression, adapting your engine's performance to different fuel types and racing conditions.
- Premium Quality Components: All gaskets are crafted from high-quality materials to meet or exceed OEM standards, ensuring a reliable and leak-free top-end rebuild.
Important to Know
- Valve stem seals are not included.
- Rubber parts are not included.
- Shims are not included.
- Other fiber gaskets are not included.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Specifications
P400270620037
Gasket Kit
179 mm
14 mm
220 mm
4-Stroke
Top End
Kit
Reviews


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.
Based in Denmark
Fast customer support
Over 100.000 Products
2-Year Full Warranty
Your peace of mind is our priority. Every product in our shop comes with a comprehensive 2-year warranty, so you can hit the road with full confidence.
Support in Danish, Swedish, German & English
Whether you are upgrading your exhaust or choosing a new helmet, our team of seasoned riders is ready to provide professional guidance for your specific bike.
Free Shipping Over 200€ (EU)
Shop your favorite gear without worrying about extra costs. We offer free shipping on all orders over 200€ (EU), ensuring your parts reach you safely and affordably.
Authorized Parts Europe Dealer
As a certified Parts Europe supplier, we guarantee 100% authentic, high-quality motorcycle parts and accessories directly from the world's leading manufacturers.

