Drive Pulley Bolt

CFMoto Drive Pulley Bolt (Right-Hand Thread / Standard Thread)

Specification: M14 × 1.5 | Right-Hand Thread (Standard)

Product Type: CVT Drivetrain | Drive Pulley Fastening Bolt

Fitment: CFMoto 800cc/1000cc ATV/UTV Series (2V91W / 2V91Y Engine Series)

OEM specification drive pulley bolt used to secure the CVT drive pulley (primary pulley) to the crankshaft. Manufactured from high-strength alloy steel, ensuring reliable fastening of the pulley during high-speed operation, preventing loosening, and guaranteeing drivetrain safety and stability.

This is an OEM-quality CFMoto Drive Pulley Bolt, specification M14 × 1.5 Right-Hand Thread (Standard Thread). This bolt is a critical fastener in the CVT (Continuously Variable Transmission) system, used to secure the drive pulley (primary pulley) to the crankshaft.

The drive pulley withstands enormous torque and centrifugal force during engine operation, requiring the fixing bolt to have exceptional strength and reliability. This bolt is manufactured from high-strength alloy steel with precision machining and specialized heat treatment, offering excellent tensile strength and fatigue resistance. It can withstand the immense stress generated by the CVT system at high speeds, ensuring the pulley remains securely fixed, preventing loosening or detachment, and safeguarding riding safety.

• Secures Drive Pulley: Firmly fixes the CVT drive pulley to the crankshaft.
• Withstands Extreme Torque: Handles the enormous torque and centrifugal force transmitted by the drive pulley during engine operation.
• Prevents Loosening: High-strength fastening performance ensures the pulley does not loosen or detach at high speeds.
• Right-Hand Thread (Standard) Design: Standard thread direction — tightens clockwise, consistent with conventional installation habits.
• High-Strength Alloy Steel: Grade 12.9 high-strength material, far exceeding standard bolt specifications.
• Precision Rolled Threads: Threads are roll-formed for higher strength, more precise fit, and consistent clamping force.

⚠️ Failure Indicators: A loose or damaged drive pulley bolt may exhibit the following symptoms:
• Unusual noises from the CVT drivetrain, especially during acceleration;
• Poor acceleration, drivetrain slipping;
• Bolt found loose during inspection;
• Damaged or stretched threads on the bolt;
• In severe cases, the drive pulley may detach, causing major drivetrain failure.
If you experience any of these symptoms, inspect and replace the bolt immediately.

✅ Installation Guide:
• Torque Direction: This bolt has Right-Hand Thread (Standard). To tighten, turn CLOCKWISE.
• Removal Direction: To loosen, turn COUNTER-CLOCKWISE.
• Thoroughly clean the threaded hole and bolt threads before installation, ensuring no oil or debris remains.
• Apply a suitable thread locker (e.g., Loctite 243) to the middle section of the threads to prevent loosening due to vibration.
• Always use a torque wrench and tighten to the torque value specified in the service manual.
• Never reuse old or damaged bolts.

⚠️ Important Notice: This product is a CFMoto Drive Pulley Bolt, specification M14×1.5 Right-Hand Thread (Standard Thread). Fits the 800cc and 1000cc ATV and UTV models listed above. Minor variations may exist between different model years or production batches. If your specific vehicle is not listed, please contact our customer service with your VIN (Vehicle Identification Number) to verify compatibility. Images are for reference only; actual products may vary slightly by batch.