Cam Chain Tensioner for CSC Go., GY6 50cc (139QMB) Scooters

Cam Chain Tensioner for CSC Go Scooters with 139QMB Engines

This cam chain tensioner is an OEM replacement part designed for CSC Go scooters and motorcycles equipped with 139QMB engines. It plays an important role in maintaining proper tension on the camshaft chain, ensuring smooth engine operation. As one of the necessary GY6 50cc scooter parts, it fits directly in place of the original component, helping to keep your ride in good working condition.

Construction and Function

This tensioner is specifically designed to hold the cam chain securely, preventing slack that can lead to engine noise or performance issues. The length measures 7-3/4 inches with an inner hole diameter of 6mm, making it an exact match for the original equipment. It is built to meet the specifications of your 139QMB engine for reliable performance.

When to Replace

Replace the cam chain tensioner if you notice unusual noises from the engine, or if performance has degraded. Regular checks during maintenance can help identify wear and tear on this part. Ensuring it is in good condition will help maintain engine function.

Specifications

• Size: 7-3/4 inches
• Inner Hole Diameter: 6mm
• Fits: CSC Go scooters and models with 139QMB engines
• OEM Part Number: N/A

Fitment

This cam chain tensioner is compatible with the following engine codes:

• 139QMA
• 139QMB
• 1P39QMB
• 1P39QMA-2
• YN139QMB
• JJ1P39QMB
• 139FMA-2
• BD1P39QMB
• BN139QMB
• 147QMD
• Other QMA models
• Other QMB models

Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.

Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Cylinder Heads & Valves · Scooter Chains & Sprockets · Scooter Parts