Purge Control Valve / CPV Solenoid (EVAP Canister Valve) for Royal Enfield Meteor 350 & 650 Twins – RAD00021/C (Supersedes RAD00021/B)

Royal Enfield RAD00021/C is the Purge Control Valve (also called CPV Solenoid / EVAP purge valve)—a key emissions component that controls fuel vapour flow from the charcoal canister into the intake to be burned during combustion. When this valve sticks or leaks, riders commonly face fuel smell, inconsistent idle, hard starting, or EVAP-related warning codes, especially after refuelling or in hot weather.

This is a genuine Royal Enfield spare part by part number and description. It is also documented as a supersession: RAD00021/B → replaced by RAD00021/C.

Also searched as: purge valve, evap purge solenoid, canister purge valve, CPV solenoid, vapor purge valve, emission purge valve.

Before you buy: match part number, and confirm by VIN/EPC screenshot or a clear photo of your existing valve + connector + hose routing.

Internal link suggestions (collections): Royal Enfield Meteor 350 Spares, Royal Enfield 650 Twins Spares, Royal Enfield Fuel & Emissions.

Key Features 

• Genuine Royal Enfield Purge Control Valve / CPV Solenoid by part number.

• Supersedes RAD00021/B (useful when old listings show “/B”).

• Controls EVAP vapour purge from canister to intake (emissions + drivability).

• Helps address fuel smell / rough idle / purge faults caused by stuck or leaking purge valve (diagnosis still required).

• Direct-replacement part when connector + hose ports match your OE unit.

• Recommended to verify by VIN/EPC for return-prevention (many EVAP layouts vary by market/BS/Euro).

• Suitable for export buyers: search-friendly aliases included (CPV/EVAP/purge solenoid).

Compatibility Table 

Explicit exclusions (return-prevention):

• Do not buy by bike name alone if your motorcycle has a different EVAP/canister routing (market/variant differences are common).

• If your old part shows RAD00021/B, you should receive RAD00021/C as the updated number.

Variants

No variants.

FAQs 

1. Fitment: How do I confirm RAD00021/C fits my bike?
   Match your existing valve’s part number (RAD00021/C or RAD00021/B) and compare connector shape + hose port orientation. Best method: share your VIN with us or send a photo of the installed valve before ordering.

2. Fitment: Is this only for BS6 / Euro 5 bikes?
   This part is commonly associated with EVAP-equipped motorcycles. Because EVAP layouts vary by market and emission spec, confirm by VIN/old part number/photo rather than assuming by year.

3. OEM vs aftermarket: Why buy genuine Royal Enfield for a purge valve?
   Purge valves are calibration-sensitive (leak rate/response). Genuine parts reduce the risk of idle issues, fuel smell, or repeat fault codes caused by poor sealing or incorrect flow.

4. Installation: Can I replace the purge control valve myself?
   Usually yes with basic tools. Replace like-for-like, avoid swapping hose routing, and ensure clamps seal properly. If the bike throws a code afterward, check for vacuum leaks and connector seating.

5. Symptoms: What problems does a bad purge valve cause?
   Common signs: fuel vapour smell, rough/unstable idle, hard start after refuelling, EVAP/purge fault codes, and occasional hesitation (diagnosis required; these symptoms can overlap with hose leaks).

6. Return-prevention: What should I send to confirm before shipping?
   Send (1) bike model + year, (2) VIN last 6 digits, (3) photo of current purge valve with connector visible, (4) hose ports visible. We’ll match it before dispatch.

7. Supersession: I see RAD00021/B online—what will I receive?
   RAD00021/B is shown as replaced by RAD00021/C in parts catalog listings, so RAD00021/C is the correct updated supply.