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Royal Enfield 550661/A Oil Seal – Gear Change Shaft OEM Replacement for Classic, Bullet & Continental UCE Models
Royal Enfield 550661/A Oil Seal – Gear Change Shaft OEM Replacement for Classic, Bullet & Continental UCE Models
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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
Prevent gearbox oil leaks and ensure smooth shifting with the Royal Enfield 550661/A Gear Change Shaft Oil Seal, a genuine OEM spare designed to factory specification. This seal fits the gear change shaft where it exits the crankcase, maintaining perfect oil retention around the shifting mechanism.
Compatible with Classic 350, Classic 500 EFI, Bullet 350/500 UCE, Electra 350, Continental GT, Thunderbird 350/500, and other export-model motorcycles using the common UCE gearbox architecture. Manufactured from premium rubber and metal reinforcement, it resists oil breakdown and maintains seal integrity under pressure and temperature cycles.
An essential component in gearbox maintenance or leak repair—especially recommended alongside replacement of the gearbox distance piece (e.g. part 550130/B) to ensure a proper seal .
✔️ Features & Benefits
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100% OEM Royal Enfield part (550661/A) for gear change shaft sealing
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Wide UCE model compatibility: Works on Classic, Bullet, Electra, Continental GT, Thunderbird export variants.
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High durability: Precision molded with oil-resistant rubber and rigid inner metal shell
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Recommended during distance-piece replacement for best results.
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Plug-and-play: OEM dimensions match exactly, no modification necessary
📋 Specifications
| Attribute | Details |
|---|---|
| Part Number | 550661/A |
| Application | Oil seal for gear change shaft exiting gearbox case |
| Compatible Models | Classic 350/500, Bullet 350/500 UCE, Electra 350, Continental GT, Thunderbird export variants |
| Material | Oil-resistant rubber with reinforced metal support |
| Installation | Slot into gearbox case at shift shaft opening; fits OEM location |
| Package | One seal only |
❓ Frequently Asked Questions
Q1: Does this seal fit Classic 500 EFI models?
✅ Yes—standard OEM seal for gear change shaft on Classic 500 EFI and all export UCE models.
Q2: I have a Bullet 500 EFI—will it fit?
✅ Absolutely—it’s the same seal used on Bullet 500 UCE 5-speed models (2013–2020).
Q3: Should I replace the distance piece along with the seal?
🟢 Yes—common issue: worn distance piece (550130/B) can cause premature seal wear or leaks. Best practice is to replace both at once.
Q4: Is this seal size universal?
⚠️ Designed specifically for Royal Enfield UCE gearbox; cross-compatible across multiple models sharing this architecture.
Q5: How do I install it?
🔧 Remove engine cover, clean mating surface, gently press seal into recess until flush. Refit cover and rotate shift shaft to seat properly.
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Verify Fitment on Official Brand Portals
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
