Royal Enfield BS29 Carb Piston Valve 570944 – Classic, Bullet, Thunderbird UCE

Upgrade your Royal Enfield’s throttle performance with this genuine BS29 Piston Valve Kit (Part No. 570944). This OEM part ensures optimal carburetor function with smooth throttle response and reliable fuel delivery. Designed specifically for BS29 carburetors used in Royal Enfield’s UCE engines, this kit includes the piston valve with diaphragm—perfect for rebuilds or replacing worn parts.
Fits Classic 350/500, Bullet 350/500, Electra 350, and Thunderbird 350 models with carbureted UCE engines.
Does not fit fuel-injected models like Interceptor, GT 650, Himalayan, Meteor, or Hunter.

 Key Features:

• Genuine Royal Enfield OEM part

• Part No. 570944 (supersedes 570832/A)

• Compatible with BS29 carburetor

• Ensures smoother throttle and stable idling

• Durable rubber diaphragm with piston valve

• Packed safely for secure delivery

 Compatibility (Verified):

✅ Bullet 350 / 500 UCE (Carburetor model)
✅ Classic 350 / 500 UCE (BS29 Carb)
✅ Electra 350 UCE
✅ Thunderbird 350 UCE

🚫 Not compatible with: Interceptor 650, Continental GT 650, Himalayan, Meteor 350, Hunter 350 (all are fuel-injected)

5. Package Includes:

• 1 × Piston Valve with Diaphragm (BS29 Carb)

FAQ Section:

Q1. What is the part number for this piston valve?
This is Royal Enfield part number 570944. It replaces the older part number 570832/A.

Q2. Which bikes is this compatible with?
It fits Classic 350/500, Bullet 350/500, Electra 350, and Thunderbird 350 — all UCE models with BS29 carburetors.

Q3. Will this fit my Interceptor 650 or Himalayan?
No, it is not compatible with fuel-injected bikes like Interceptor 650, GT 650, Himalayan, Meteor, or Hunter.

Q4. What does this piston valve do?
It controls the movement of the throttle slide in BS29 carburetors, regulating airflow and fuel delivery.

Q5. Is this an original RE spare part?
Yes, it is a 100% genuine Royal Enfield part, sealed in factory packaging with verified part number 570944.