12100-KCY-670, 12191-KCY-672, 13011-KCY-670, 13101-KCY-670, 90601-KA5-000, 13111-KCY-670, 12100-HN1-A70, 12191-KCY-672, 12251-HN1-003, 12391-KCY-671, 14560-KCW-851, 12100-HN1-A70, 12191-KCY-672, 13011-KCY-670, 12100-KCY-670, 4606M08800, C7826, 71016-4, 12191-KCY-673, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670,13111-KCY-670, 12251-HN1-003, 12209-KL4-005, 4040, 4606M08700, 4606M08800, 4667M08900, 808829, 808894, 8604DA, H0402027S, M2033

Honda TRX 400EX/X & XR400R 88mm Big Bore Cylinder Kit Complete 426cc Top-End Rebuild with Premium Performance Parts

Maximize your Honda 400EX, 400X, or XR400Rs performance with the 88mm Big Bore Cylinder Kit 426cc Top-End Rebuild, the ultimate upgrade for power-hungry riders. Precision-engineered for all models and years, this complete kit delivers unmatched reliability, durability, and aggressive performance gains without any case or head modifications.

Whats Included in the Kit?

• 88mm heavy-duty big bore cylinder: Built to last under extreme conditions.
• Premium forged piston kit (Wiseco or Wossner): Lightweight, high-strength performance for superior combustion.
• Nitrite-coated piston rings, chrome wrist pin & circlips: Reliable sealing and durability.
• Cometic big bore gasket kit: Comprehensive seal for maximum efficiency, including an MLS head gasket.
• Talon TITANIUM cylinder head stud kit: Backed by a lifetime warranty, built to handle extreme pressure.
• heavy-duty cam chain: A perfect match for your high-performance build.

Key Features You’ll Love:

Power & Versatility: Boost your engines displacement to an impressive 426cc. Runs flawlessly on both pump gas and race fuel.
DIY-Friendly: No need for case or head modifications hassle-free installation.
Rider Confidence: Durable, high-quality components backed by a 1-Year Warranty for your peace of mind.
Proven Performance: Engineered by , your go-to for the best parts, unbeatable performance, and incredible value.

Experience the adrenaline-pumping advantage of a high-performance 426cc engine on your next ride. Whether youre shredding dunes or hitting the trails, this kit ensures your ATV dominates with power, reliability, and excitement.

Upgrade Today! The Best Parts. The Best Performance. The Best Price. BRAPPPP!

12100-KCY-670, 12191-KCY-672, 13011-KCY-670, 13101-KCY-670, 90601-KA5-000, 13111-KCY-670, 12100-HN1-A70, 12191-KCY-672, 12251-HN1-003, 12391-KCY-671, 14560-KCW-851, 12100-HN1-A70, 12191-KCY-672, 13011-KCY-670, 12100-KCY-670, 4606M08800, C7826, 71016-4, 12191-KCY-673, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670,13111-KCY-670, 12251-HN1-003, 12209-KL4-005, 4040, 4606M08700, 4606M08800, 4667M08900, 808829, 808894, 8604DA, H0402027S, M2033