Royal Enfield RLG00009/C – Auto Cam Chain Tensioner Assembly (Textured Black) for Meteor 350, Classic 350 Reborn, Hunter 350 & Bullet 350 BS6 – Genuine OEM

The Royal Enfield RLG00009/C Auto Chain Tensioner Assembly – Textured Black is the genuine OEM cam chain tensioner used in the latest J-Series 350 BS6 engines. Official price lists identify RLG00009/C as “AUTO CHAIN TENSIONER ASSY – TEXTURED BLACK”, confirming it as a factory part for the J-platform.

Multiple trusted dealers list RLG00009/C for Meteor 350, All New Classic 350, Hunter 350 and Bullet 350 BS6, describing it as “Auto Chain Tensioner Assy Textured Black for Meteor 350 | All New Classic 350 | Hunter 350 | Bullet 350”. US and EU sellers also sell RLG00009 or RLG00009/C as “Cam Chain Auto Tensioner for Meteor 350”, confirming that this is the internal cam chain tensioner, not the rear drive chain adjuster.

The cam chain tensioner keeps the timing chain correctly tensioned as it wears, preventing chain slap, noise and timing drift. A worn or failed tensioner can cause ticking/knocking from the right side of the engine, poor performance, or in extreme cases, skipped timing teeth. Replacing it with a brand-new, genuine RLG00009/C restores proper chain tension and long-term reliability.

This assembly comes finished in textured black, exactly like the OEM unit fitted at the factory. Under The Hood supplies only original Royal Enfield–marked parts, so you get the same quality that came with your Meteor, Classic Reborn, Hunter or Bullet 350 from day one.

Key Features

• Genuine Royal Enfield OEM part – Part No. RLG00009/C, listed in RE price lists as Auto Chain Tensioner Assy – Textured Black.

• Cam chain auto-tensioner for the J-Series 349cc BS6 engine used in Meteor 350, Classic 350 Reborn, Hunter 350 and Bullet 350 BS6.

• Maintains correct cam chain tension automatically, helping keep ignition and valve timing accurate over the bike’s life.

• Helps reduce chain slap, rattling and timing-chain noise, especially on start-up or under load.

• Direct bolt-on replacement – designed to fit the J-Series engine casing with OEM bolts and gasket/O-ring (RLG00025/A sold separately).

• Textured black finish matches the factory look of the J-Series engine hardware.

• Safer and more reliable than generic tensioners – built to Royal Enfield’s metallurgy and spring-rate specs.

• Ideal during timing chain replacement, top-end rebuilds or when diagnosing persistent cam-chain noise.

Compatibility Table (Confirmed Only – No Guesswork)

PLEASE CHECK PART NUMBER BEFORE PURCHASE 

Explicit Exclusions

To keep returns low, do NOT advertise this for:

• Older UCE or CI 350/500 engines (Classic UCE, Bullet UCE, Electra, Thunderbird).

• Himalayan / Scram 411, Himalayan 450 / Guerrilla 450, 650 Twins, Super Meteor / Shotgun, etc.
  These use different cam chain tensioner designs & part numbers.

Variants

Single OEM assembly:

• RLG00009/C – Auto Chain Tensioner Assembly – Textured Black – J-Series 350

  • Qty: 1N (one tensioner assembly)

• RLG00025/A – O-Ring Auto Chain Tensioner (seal for this unit).

FAQs

Q1. Is this for the engine cam chain or the rear drive chain?
It’s for the engine cam chain (timing chain), not the rear wheel chain. RLG00009/C is an internal auto tensioner that bolts to the engine and maintains cam chain tension.

Q2. What symptoms mean my cam chain tensioner might be bad?
Common signs include rattling / ticking from the timing chain area, especially on cold start, inconsistent noise that changes with rpm, or visible excessive slack when the engine is inspected. In severe cases, timing can drift, causing poor performance or misfiring.

Q3. Do I need to change the O-ring or gasket with it?
Yes, it’s good practice to replace the sealing O-ring (RLG00025/A) whenever you remove/install the tensioner to prevent oil leaks.

Q4. Can I fit this on my older Classic 350 UCE?
No. Older UCE engines use a completely different tensioner design and part numbers. RLG00009/C is only for the BS6 J-Series 350 engine (Meteor, New Classic, Hunter, Bullet 350 BS6).

Q5. Is any special setting required after installation?
The auto tensioner is designed to self-adjust. However, installation should be done by a competent mechanic following the workshop manual to ensure the cam chain is correctly timed before releasing the tensioner plunger.