Vertex VTKTC22951A Top End Piston Kit Forged Replica Suzuki DR-Z400 2000-2022

High-Performance Top End Restoration for DR-Z400

When your Suzuki DR-Z powerplant starts to show its age, a precision top-end rebuild is the only way to restore that legendary 400cc grunt. The Vertex VTKTC22951A Top End Piston Kit, available at Moto-House MX, is a premium forged replica designed as a high-strength OEM replacement. This comprehensive kit provides everything needed for a total upper-engine refresh, ensuring your bike maintains peak compression and rock-solid reliability whether you’re commuting on the street or tearing up off-road trails.

Forged from elite 2618 aluminum and subjected to a rigorous T-5 hardening and tempering cycle, this piston is built to withstand extreme thermal stress. To ensure a seamless transition from the workbench to the dirt, the piston skirt is coated with high-tech Molybdenum Disulphite, which significantly reduces friction for a faster break-in time and extended service life. This all-in-one kit simplifies the rebuild process by including the forged piston, high-performance rings, pins, circlips, a premium top-end gasket set, and a new cam chain for a complete timing system overhaul.

Top Features: Vertex VTKTC22951A Piston Kit

• Forged 2618 Aluminum: Offers a superior strength-to-weight ratio over cast alternatives, providing increased durability for high-RPM operation.
• Molybdenum Disulphite Coating: Advanced skirt coating reduces friction and heat during the critical break-in phase.
• T-5 Hardening Cycle: Specialized heat-treatment process ensures the piston retains its shape and structural integrity under heavy loads.
• Comprehensive Rebuild Set: Includes the forged piston, rings, pins, circlips, top-end gaskets, and a replacement cam chain.
• Exact OEM Replica: Engineered to match factory 11.3:1 compression and 90mm bore specifications for a perfect drop-in fit.

Expert Pro-Tip

Always stagger your piston ring gaps according to the service manual and apply a generous amount of assembly lube to the wrist pin and small-end bearing to prevent galling on the first start.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Size
2000-2022	Suzuki	DR-Z400 / S / SM / E
2003-2004	Kawasaki	KLX400R

Frequently Asked Questions

Q: What is the difference between the 'A' and 'B' piston sizes?
A: The 'A' kit (89.96mm) is slightly smaller than the 'B' kit to allow for proper clearance in a fresh or low-hour standard 90.00mm cylinder bore.

Q: Does this kit include the head and base gaskets?
A: Yes, this kit includes a complete top-end gasket set necessary for the cylinder and head installation.

Q: Why is the cam chain included?
A: Cam chains stretch over time; including a new one ensures your valve timing remains precise, which is critical for maintaining peak performance after a rebuild.

Closing CTA: Rebuild with the choice of champions. Buy the Vertex VTKTC22951A Piston Kit now at Moto-House MX.

Stop by our local store in Montverde, FL or lightning-fast shipping across the USA.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The Best Motocross/UTV & ATV Shop in Central Florida.