Honda TRX400EX 400EX 89mm 89 Big Bore Wiseco Piston Rings Set COMETIC Gasket Kit
Honda TRX400EX 89mm Wiseco Piston Rings + Cometic Gasket Kit
Restore Power & Reliability
This premium top-end refresh package combines Wiseco 89mm piston replacement rings with a precision-engineered Cometic gasket kit to restore compression, reduce blow-by, and bring your Honda back to peak performance. Designed exclusively for 89mm Wiseco pistons, this set provides a dependable seal and OEM-level fitment every time.
⚠️ THESE PISTON RINGS FIT WISECO PISTONS ONLY
- Pistons are not included.
- Please confirm that you are using a Wiseco piston before purchasing. If you are unsure, feel free to contact us — we are always happy to help.
- A restocking fee will apply if the rings have been opened or if any installation attempt has been made.
- Returns related to verified manufacturing defects will be handled appropriately and will not incur restocking fees.
We appreciate you taking the time to read this.
🔥 Key Features & Benefits
Built for riders who demand reliable sealing, crisp compression, and long-lasting durability from every rebuild.
- Precision-made Wiseco 89mm piston rings for maximum sealing efficiency
- Cometic MLS gaskets deliver superior protection against leaks
- Restores like-new performance with reliable compression improvement
- Ideal for full top-end rebuilds with OEM-grade fitment
- Race-proven materials built to withstand high-heat, high-RPM environments
✅ Compatibility
This kit fits the following vehicles and specific Wiseco piston models.
- Honda TRX400EX
- Honda 400EX / 400X
- Honda XR400
- Wiseco Piston #4794M08900
- Wiseco Piston #4667M08900
❓ Frequently Asked Questions (FAQ)
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Q: Are pistons included?
A: No. This listing includes replacement rings and Cometic gaskets only.
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Q: Will these rings fit non-Wiseco pistons?
A: No. These rings are made exclusively for 89mm Wiseco pistons and will not fit OEM or other aftermarket pistons.
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Q: Is this the correct size for big bore setups?
A: Yes, this is the 89mm size used for Wiseco big-bore top-end configurations.
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Q: Is there a restocking fee?
A: Yes. Due to frequent misuse, opened ring sets cannot be returned without an applicable restocking fee.
🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟
At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. Every component we offer is selected for durability, precision, and maximum reliability. Whether you're rebuilding a Honda TRX400EX or refreshing your XR400, we ensure you get race-ready products backed by proven industry experience. Trust BPRATV to keep your Honda running at its best, every single time.
Rebuild your Honda the right way — upgrade with Wiseco + Cometic today!
BPRATV - The Best Parts. The Best Performance. The Best Price.
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