Front Fork Dust Seal (Fork Wiper / Dust Cover) for Meteor 350 / Classic 350 Reborn / Hunter 350 – RAH00139/B (Replaces RAH00139/A)

SOLD AS A SET OF 2 PCS 

RAH00139/B is the genuine front fork dust seal (also called fork wiper / dust cover) that sits at the top of the fork leg and helps keep dust, mud, and road grit away from the fork’s internal oil seal. When the dust seal cracks, hardens, or comes loose, dirt reaches the oil seal faster—often leading to fork oil leaks, sticky suspension action, and premature fork seal failure.

This part is commonly used on Royal Enfield’s J-Series 350 platform forks, including Meteor 350, Classic 350 Reborn, and Hunter 350, as referenced by multiple dealer listings. The older number RAH00139/A is shown as replaced by RAH00139/B in dealer OEM catalogues.

Also searched as: fork dust seal, fork wiper seal, front shock dust seal, fork dust cover, fork seal cap.

Before you buy: Order 2 pcs for a full front fork service (one per fork leg) and match by photo/shape before fitting.

SOLD AS A SET OF 2 PCS 

Key Features 

• Genuine Royal Enfield Dust Seal / Fork Wiper part number RAH00139/B

• Supersession noted: RAH00139/A → RAH00139/B

• Helps protect the fork oil seal by blocking dust and grit entry

• Reduces chances of fork oil leak caused by contamination (real-world prevention)

• Correct fit profile for the J-Series 350 fork assembly (per multiple dealers)

• Typically required quantity: 2 pcs per bike (LH + RH fork legs)

• Ideal during fork service along with fork oil seal (recommended combo)

• Return-prevention: match your existing dust seal profile and fork outer tube

Compatibility Table 

Variants
No variants.

FAQs 

Q1 (Fitment): How do I confirm RAH00139/B is correct for my bike?
Match your existing dust seal by photo and dimensions/profile, and confirm your bike is a J-Series 350 (Meteor / Classic Reborn / Hunter). Dealer listings show this dust seal for these models.

Q2 (Fitment): How many pieces do I need—1 or 2?
You typically need 2 pieces (one for each fork leg). Parts books often show a normal quantity of 2 for the front suspension dust seal.

Q3 (Comparison): What’s the difference between RAH00139/A and RAH00139/B?
RAH00139/A is shown as replaced by RAH00139/B in OEM dealer catalogs—RAH00139/B is the current supply number.

Q4 (Installation): Can I replace only the dust seal without changing fork oil seal?
Yes, but best practice during service is to inspect the fork oil seal. If there’s oil seepage, replace the oil seal too—dust seals are preventative, not a leak fix.

Q5 (Symptoms): What problems does a worn dust seal cause?
Cracked/loose dust seals allow grit into the fork area, often leading to sticky suspension feel, accelerated oil seal wear, and fork oil leaks over time.

Q6 (Returns-prevention): What photo should I share before ordering to avoid mismatch?
Share a clear photo of the top of your fork leg (dust seal area) and the fork outer tube. If you have a Bullet 350 (J-Series), share VIN + fork photo because confirmation in captured sources is limited.