High-Performance CQJB 500cc/470cc/250cc Engine Assembly – Built for Power & Durability

Precision-crafted with forged aluminum alloy pistons and hardened steel crankshaft for superior heat resistance & longevity. CNC-machined cylinder head ensures optimal airflow, boosting torque by 15% for off-road dominance.

Multi-application compatibility: Ideal for ATV/UTV upgrades, dirt bike customization, and go-kart racing. Features oil-cooled technology with dual bearing support, reducing friction at 8,000 RPM.

Direct wholesale pricing: Factory-grade quality with 30% cost savings vs. retail brands. Bulk order discounts available for commercial builders.

Includes: Carburetor, CDI ignition, and mounting hardware – ready for plug-and-play installation. ASTM-tested under extreme load conditions (200+ hours).

Global shipping with OEM warranty coverage. Power your adventure with pro-level engineering.