🔥 Bestseller this week
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Risk-free purchase within the EU
- 🚚Shipped from a European warehouse
- 💶Final price — no customs or import fees within the EU
- ⚡Fast delivery: usually 2–5 business days (depending on the country)
- 🔎Tracking after dispatch
- ↩️14-day returns (EU law)
- 🛡️24-month seller liability
- 💬Support before and after purchase
⭐ Why choose this product
- ✅ Verified offer — matches the description
- 🧾Clear description and photos
- 🧩Easy variant selection
- 📦Secure packaging
- ⭐Good “for now” choice
Complete upper engine rebuild kit for the Honda TRX400EX (1999-2008) with 85mm bore and 70mm stroke, 397cc displacement and 9.1:1 compression - everything needed for installation in one package.
- Intended use: Honda Sportrax 400 TRX400EX (1999–2008)
- Bore x Stroke: 85 mm x 70 mm
- Capacity: 397 cm³
- Piston compression: 9.1:1
- Main material: metal
- Country of origin: China
Compatibility and OEM replacements:
- OEM parts: 12100-KCY-670, 12191-KCY-672, 13011-KCY-670, 13101-KCY-670, 90601-KA5-000, 13111-KCY-670, 12251-HN1-003, 12391-KCY-671, 14560-KCW-851, 12100-HN1-A70, 12191-KCY-672
What's included in the kit:
- Cylinder
- Piston
- Piston pin
- Spark plug
- 2 x Circlips
- Head gasket
- Base gasket
- Head cover gasket
- 2 x Piston rings
Guarantee: 30-day money-back guarantee. Please contact us with any questions.