Royal Enfield Clutch Hub Retaining Nut M17 - 575383/B - Genuine OEM

Product Introduction

Royal Enfield 575383/B is the M17 clutch sleeve hub retaining nut, commonly called the clutch centre nut or clutch hub nut. It secures the clutch hub in the applicable retaining arrangement and is supplied individually, separate from the lock washer, Belleville washer and clutch assembly.

This component reference is documented across J-Series 350 motorcycles, Himalayan 450, Guerrilla 450 and multiple 650 twins, including Bear 650. Use the model and generation table below to select the correct application. A shared retaining nut does not establish interchangeability of the complete clutch or its other internal parts.

Part Identification

What This Product Is

One genuine Royal Enfield M17 clutch hub retaining nut under the exact reference 575383/B. Its assembly location is identified by the clutch or transmission exploded diagram for the motorcycle being repaired.

What This Product Is Not

• Not a complete clutch assembly, clutch hub, clutch basket, friction plate, steel plate or spring.
• Not the separate clutch hub lock washer or Belleville washer.
• Not the M20 engine/front sprocket nut 574267/C.
• Not the M20 clutch sleeve hub nut listed under base reference 574274 for the checked 411 applications.
• Not a generic hardware nut or universal replacement for every Royal Enfield clutch.

Key Features

• Genuine Royal Enfield M17 clutch sleeve hub nut, part number 575383/B.
• Individual component supplied as one nut.
• Documented catalogue replacement reference for 575383/A.
• Model-by-model application checks cover the listed 350, 450 and 650 generations.
• Separate washer and clutch hardware selection prevents incorrect assumptions about supplied contents.

Buyer Search Names

Royal Enfield M17 clutch nut, clutch hub nut, clutch centre retaining nut, clutch center nut, clutch sleeve hub nut, 575383/B, 575383B.

Confirmed Compatibility / Catalogue Applications

The following motorcycles have direct model-catalogue entries for clutch centre nut reference 575383. Exact revision evidence is identified separately from parts books displaying only the base number. The years below are specific catalogue examples checked, not a blanket claim for every intervening year, market or variant.

Where a parts book shows only 575383, match the complete 575383/B reference to the current VIN/EPC before ordering. Euro catalogue evidence does not automatically establish every Indian BS/OBD version.

Fitment Requires Verification

Not Compatible / Do Not Order For

• Do not order this M17 nut for the checked Himalayan 411 Euro 4/Euro 5 or Scram 411 Euro 5 clutch applications: their clutch diagrams specify M20 nut base reference 574274. Himalayan 450 compatibility does not establish Himalayan 411 compatibility.
• Classic 350 Reborn/J-Series and new Bullet 350 J-Series applications do not establish older Classic/Bullet/Electra/Thunderbird UCE fitment.
• Do not select this nut for Continental GT 535 or an older UCE clutch without an exact matching EPC reference; these are not confirmed applications in this listing.
• Do not substitute it for a front sprocket nut, rear axle nut or another fastener solely because it looks similar.

Part Number / Revision / Supersession Notes

The supplied SKU is 575383/B. The genuine-parts catalogue identifies 575383/B as the replacement part number for 575383/A and associates the earlier reference with the Interceptor 650 and Continental GT 650 Euro 4 gearbox applications.

This is a documented /A-to-/B replacement relationship. It does not make unrelated clutch nuts interchangeable or establish every vehicle application. Where the model book omits the suffix and prints 575383, verify the complete current part number before ordering.

Similar Parts Comparison

Related references help identify separate components. Confirm every washer and other repair part independently for the motorcycle and clutch generation.

When Should This Part Be Replaced?

Have the nut inspected for damaged threads, rounded tool-engagement faces, cracking, deformation or evidence that it cannot retain the hub correctly. Replace it whenever inspection or the exact workshop procedure requires renewal.

Clutch slipping, dragging, noise or difficult gear selection needs diagnosis of the complete clutch system. These symptoms alone do not prove the retaining nut is faulty. A new nut will not repair damaged shaft threads, worn hub splines, worn plates or incorrect clutch adjustment.

Recommended Related Parts to Check

• Clutch hub lock washer and Belleville washer, including the specified renewal requirements.
• Shaft threads, clutch hub splines and mating surfaces.
• Clutch centre, basket, plates, bearings and actuation adjustment as required by diagnosis.
• Clutch cover gasket, oil and other service consumables needed for the exact repair procedure.

What’s in the Box

1 × Genuine Royal Enfield M17 clutch sleeve hub retaining nut, part number 575383/B.

Nut only. The lock washer, Belleville washer, plain washer, clutch hub, clutch basket, plates, springs, gasket, oil and tools are not included. One applicable clutch assembly uses one nut. Dealer minimum-order quantities and catalogue order multiples do not mean this listing contains a pair or bulk pack.

Installation Notes

Professional installation is recommended because this fastener secures an internal drivetrain component. Follow the workshop manual for the exact motorcycle and installed clutch. Use the specified holding method and correct socket, and inspect the hub and shaft threads before fitting.

Follow the prescribed washer sequence, orientation, thread preparation, nut-renewal requirement and locking method. Tighten to the model-specific workshop torque; do not use a generic M17 fastener torque or transfer a value from another engine. M17 is a nominal thread designation, not the socket size. Do not force a nut that does not engage correctly.

Complete the required gasket, oil, clutch adjustment and functional checks before returning the motorcycle to service.

Before You Buy / UTH Order and Return Policy

Confirm 575383/B against your VIN/EPC, clutch generation and the actual nut being replaced. Verify the required thread and component reference; a similar-looking nut or shared engine capacity is insufficient. Check whether the repair requires separate washers, gasket or other service items.

Order cancellation is not available once processing has started. Correctly supplied spare parts are generally not returnable for wrong selection, incorrect diagnosis, mechanic recommendation, fitment mismatch or change of mind. Wrong-item, damaged-item or missing-item claims require a complete unboxing video and must be raised within 24 hours of delivery. Retain the packet and part label for any claim.

Frequently Asked Questions

What is part number 575383/B?

It is the genuine Royal Enfield M17 clutch sleeve hub retaining nut, also called the clutch centre nut.

Does the order include the locking washer?

No. One nut is supplied. The lock washer, Belleville washer and other clutch parts are separate.

Is 575383/B a replacement for 575383/A?

Yes. The genuine-parts catalogue expressly lists 575383/B as the replacement reference for 575383/A. Confirm the vehicle application before purchase.

Which motorcycles have documented applications?

The table covers individually checked J-Series 350 models, Himalayan 450, Guerrilla 450 and seven 650 models, including Bear 650. It identifies the checked generations and revision evidence.

Does it fit Bear 650?

The checked 2024 and 2026 Euro 5+ Bear transmission catalogues list clutch centre nut base reference 575383. Match the full /B revision against the current VIN/EPC.

Can I use it on Himalayan 411 or Scram 411?

Do not transfer the 450 application. The checked 411 clutch diagrams use M20 clutch nut base reference 574274 rather than this M17 nut.

Does M17 mean a 17 mm socket?

No. M17 identifies the nominal thread size. Use the correct socket and tools for the exact nut and workshop procedure.

Is this the front sprocket nut?

No. Front/engine sprocket nut 574267/C is a different M20 fastener at a different assembly position.

Can the same nut be used with every clutch upgrade?

No. Confirm the retaining hardware specified for the actual fitted clutch and shaft. Shared use of one nut does not make complete clutch assemblies interchangeable.

Can the old nut and washers be reused?

Follow the model-specific workshop renewal requirements and inspection findings. Replace damaged parts and any retaining hardware the procedure requires to be renewed.

Will this cure clutch slipping or gear-change problems?

Those symptoms require diagnosis of adjustment, plates, hub, basket and other parts. A retaining nut is not a guaranteed cure.

How many pieces are supplied, and what torque is required?

One nut is supplied. Use the exact motorcycle workshop torque and locking procedure; no universal value is specified across the listed models.

SEO / Search Terms

Royal Enfield 575383/B M17 clutch nut; 575383B clutch centre nut; Meteor, Hunter, Classic Reborn, new Bullet and Goan Classic 350 J-Series clutch hub nut; Himalayan 450 and Guerrilla 450 clutch nut; Interceptor, Continental GT, Super Meteor, Shotgun, Bear, Classic and Bullet 650 retaining nut. Check the application table for generation and revision details.

Image Filename Suggestions

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Image Alt Text Suggestions

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