Royal Enfield Genuine Oil Filter Element (Paper Type) – 140029/6 – For Bullet / Electra / Machismo / Lightning (Carb & AVL)

What this part is

Part No.: 140029/6
Item: Engine Oil Filter Element (replaceable paper filter)

This is the OEM paper oil filter element used on older Royal Enfield carb/AVL-era engines (Bullet, Electra, Machismo, Lightning etc.). It helps trap fine contaminants in engine oil and protects the crank, cam and top-end from premature wear.

⚠️ Important (Return-Prevention): This part is NOT for UCE/J-Series/BS6 engines (Classic 350 Reborn, Meteor, Hunter, Himalayan 411/450 etc.). It is meant for older Bullet/Electra/Machismo/Lightning platforms—please match your bike model + year and/or compare your old filter before ordering.

Key Benefits / Features 

1. Genuine OEM-spec filter element for proper filtration and oil flow

2. Helps reduce engine wear by catching fine debris

3. Recommended replacement during every oil service (or sooner in dusty usage)

4. Correct fit & sealing for listed older Bullet/Electra/Machismo/Lightning variants

5. Improves oil cleanliness → smoother running and better longevity

6. Lightweight, easy-to-replace service item

7. Ideal for restoration/maintenance of older Royal Enfield carb & AVL bikes

8. Ships as 1 filter element (single piece)

Verified Compatibility 

Based on independent dealer listings, 140029/6 fits the following older models/years (examples shown on listings):

*The exact sub-variant can differ by market/year—match your old filter physically if your bike is a borderline model year.

Explicit Exclusions (Do NOT buy for these)

• UCE engine models (most Classic 350/500 UCE, Thunderbird UCE, Continental GT 535 UCE, etc.)

• J-Series / BS6 models (Classic 350 Reborn, Bullet 350 J, Meteor 350, Hunter 350)

• 650 Twins / Himalayan / Scram / Guerrilla / Himalayan 450
  If you’re unsure, send your bike model + year + engine type (carb/EFI) and a photo of your old filter.

What’s in the Box

• 1 × Oil Filter Element (140029/6)

Installation Notes

• Replace during oil change; ensure correct seating and clean mating surfaces.

• If the old filter looks different in shape/length, stop and verify before installing.

Warranty / Returns

• Returns accepted only if unused & uninstalled.

• Fitment errors are common on mixed-year Royal Enfields—verify before opening/installation.

FAQ

Q1. Is 140029/6 compatible with Hunter 350 / Classic Reborn / Meteor 350?
No. Those are J-Series/BS6 bikes and use a different filtration setup.

Q2. Is it for UCE Classic 350/500?
Typically no—this part is shown for older Bullet/Electra/Machismo/Lightning carb/AVL-era applications. Verify your existing filter before ordering.

Q3. What bikes does it fit then?
Dealer fitment lists include Bullet 350/500, Electra 4S/5S, Machismo 350/500, Lightning 500/535.

Q4. How often should I change it?
Best practice: replace with every oil service (or sooner in dusty/hard riding).

Q5. I’m not sure about my model—what should I do?
Send bike model + year + whether it’s carb/EFI, and a photo of your old filter. We’ll confirm before you buy.