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Royal Enfield

Royal Enfield Circlip Oil Level Window for Bullet 350 UCE, Bullet 500 UCE, Electra 350 UCE, Classic 350, Classic 500, Thunderbird 350/500 & Continental GT 535 – 570604

Royal Enfield Circlip Oil Level Window for Bullet 350 UCE, Bullet 500 UCE, Electra 350 UCE, Classic 350, Classic 500, Thunderbird 350/500 & Continental GT 535 – 570604

Rs. 7.00
Rs. 7.00
Sale Sold out
Shipping calculated at checkout.
Important Order Policy
Please order only after confirming the part number, model, variant, year, side, connector type and compatibility. All orders are non-cancellable once placed. Correctly shipped spare parts are not eligible for return, exchange or refund due to wrong selection, wrong diagnosis, fitment mismatch, mechanic recommendation or change of mind. Electrical/electronic items are additionally non-returnable once opened, installed, plugged in, tested or used. Wrong item, damaged item or missing item claims require a complete unboxing video within 24 hours. Read full Return & Warranty Policy

Royal Enfield Circlip Oil Level Window for Bullet 350 UCE, Bullet 500 UCE, Electra 350 UCE, Classic 350, Classic 500, Thunderbird 350/500 & Continental GT 535 – 570604

570604 is a genuine Royal Enfield Circlip - Oil Level Window. Public OEM-style Royal Enfield parts sources identify this exact part number as CIRCLIP - OIL LEVEL WINDOW. This is the retaining circlip used for the oil level window assembly on UCE-era Royal Enfield engine cover applications. It is not an oil filter cap.

This is the correct OEM replacement when the original oil level window circlip is bent, damaged, missing, deformed during service, or being replaced while working on the engine cover / sight glass area. Buyers also search for this as oil level window circlip, sight glass circlip Royal Enfield, engine oil window circlip, Classic 350 oil window clip, and Bullet UCE oil sight glass circlip.

Before you buy: the strongest public fitment evidence supports multiple UCE-era 350cc and 500cc models including Bullet, Electra, Classic, Thunderbird, and Continental GT 535. This listing is intentionally positioned around those older UCE models and not newer J-series 350 motorcycles.

Why Buyers Need It

This small part becomes important when the oil level window is being repaired or replaced. If the circlip is damaged or missing, the sight-glass retention at the engine cover can be compromised. Using the correct OEM circlip is safer than reusing a distorted old clip or trying a mismatched local substitute.

Key Features

  • Genuine Royal Enfield OEM circlip for oil level window
  • Part number: 570604
  • Official description: Circlip - Oil Level Window
  • Used in the engine cover oil sight glass / oil level window area
  • Strong public fitment support across UCE-era 350cc and 500cc models
  • Ideal replacement for bent, damaged, or missing original circlip
  • Best ordered by exact part number and engine-family match

Verified Compatibility

Model Status Notes
Bullet 350 UCE (KS/ES) Confirmed Seller references explicitly include Bullet 350 UCE KS and ES.
Electra 350 UCE Confirmed Seller references explicitly include Electra 350 UCE ES and other Electra coverage.
Classic 350 Confirmed Seller references explicitly include Classic 350.
Classic 500 EFI Confirmed Seller references explicitly include Classic 500 EFI.
Bullet 500 UCE Confirmed Seller references explicitly include Bullet 500 UCE, and partsbook context supports 500 UCE use.
Thunderbird 350 / 500 Confirmed Seller references explicitly include TBTS / Thunderbird 350 and 500 family.
Continental GT 535 Confirmed 570604 as Circlip Oil Level Window on Continental GT 535 RH cover page.
Other Royal Enfield models Do not assume This listing stays conservative around the strongest UCE-era fitment evidence.

What’s in the Box

  • 1 x Genuine Royal Enfield Circlip - Oil Level Window

Buyer-Focused Fitment Note

Please order only after confirming your motorcycle is from the UCE-era 350 / 500 platform and uses this exact oil level window circlip arrangement. Do not treat it as universal across newer Royal Enfield engines.

FAQs

1. What is 570604?
It is the genuine Royal Enfield Circlip - Oil Level Window.

2. Is this an oil filter cap?
No. It is the retaining circlip for the oil level window / sight glass, not the oil filter cap.

3. Which bikes can I safely buy this for?
Strong public fitment support covers Bullet 350 UCE, Electra 350 UCE, Classic 350, Classic 500, Bullet 500 UCE, Thunderbird 350/500, and Continental GT 535.

4. Is it OEM?
Yes, it is a genuine Royal Enfield OEM part.

5. What problem does it solve?
It replaces a damaged or missing retaining circlip for the oil level window assembly.

6. Is this for newer J-series 350 bikes?
No. This listing is not positioned for J-series 350 models.

7. What should I check before ordering?
Check your bike model, engine family, oil level window setup, and exact part number 570604.

Verify Fitment on Official Brand Portals

For selected genuine spare parts, you can cross-check the part number on the official brand portals before ordering.

Royal Enfield Official Spares Portal

Hero MotoCorp Official eCatalogue

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