ATHENA - R4856-188 - Top End Race Gasket Kit - Yamaha
The ATHENA R4856-188 Top End Race Gasket Kit is a multi-layer stainless steel kit for 2014-2018 Yamaha YZ450FX, WR450F, and YZ450F models, featuring an MLSS head gasket paired with multiple base gaskets of different thicknesses to optimize engine compression ratios and allow riders to choose between standard gas with stock compression or race gas with a higher compression ratio.
Features
- Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during mid-season
- Kit includes a top-of-the line MLSS head gasket and two or more premium-quality base gaskets of different thicknesses to optimize engine compression ratios
- Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression
- Kit does not include valve stem seals, rubber parts, shims, or other fiber gaskets.
Specs
- Riding Style: Off-Road
- Material: MLSS (Multi-Layer Stainless Steel)
- Style: Race
- Type: Top End
- Units: Kit
- Product Name: Gasket Kit
Frequently Asked Questions - ATHENA - R4856-188 - Top End Race Gasket Kit - Yamaha
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
