Royal Enfield Interceptor 650 & Continental GT 650 Engine Cover Bolt M6×50 – 575901/A

Genuine Royal Enfield 575901/A is the factory HEX SOCKET BOLT M6X50_10.9 used in specified engine-cover positions on the Royal Enfield Interceptor 650 and Continental GT 650.

Part Identification

Short Hook

Replace a missing, rounded or incorrect 650 Twin engine-cover fastener with genuine Royal Enfield 575901/A, the OEM M6×50 grade-10.9 hex socket bolt.

Detailed Product Description

Royal Enfield 575901/A is a genuine M6×50 high-strength socket-head fastener used in specified engine-cover positions on the 648cc Twin platform.

The factory description explicitly identifies this fastener as HEX SOCKET BOLT M6X50_10.9. Correct bolt length is important because nearby 650 Twin engine-cover positions also use visually similar M6 bolts of different lengths, including 575900/B (M6×40 family).

What This Product Is

• Genuine Royal Enfield OEM engine fastener.
• M6 × 50 mm hex socket / Allen-head bolt.
• Property class 10.9.
• Confirmed in Interceptor 650 and Continental GT 650 engine-cover applications.
• Sold as one individual bolt unless stated otherwise.

What This Product Is Not

• Not a complete engine-cover bolt kit.
• Not 575900/B M6×40.
• Not 575388 M6×35.
• Not a flanged M6 bolt.
• Not a generic hardware-store substitute.
• Not automatically correct for every M6 threaded location on a Royal Enfield.

Key Features

• Genuine Royal Enfield OEM hardware.
• Exact M6×50 length.
• Grade 10.9 specification.
• Correct factory fastener where 575901/A is listed.
• Exact-SKU identification helps prevent incorrect bolt-length substitution.

Buyer Search Names / Internal Search Keywords

575901/A, 575901A, 575901, Royal Enfield M6x50 bolt, M6 50 engine bolt, engine cover bolt, clutch cover bolt, magneto cover bolt, crankcase cover bolt, Allen bolt, socket head bolt, Interceptor 650 engine bolt, Continental GT 650 engine cover bolt, GT650 M6x50 bolt.

Confirmed Compatibility

Fitment Not Confirmed / Check Before Ordering

Not Compatible / Do Not Confuse With

Part Number / Supersession Notes

Current genuine-parts databases and current Royal Enfield parts lists identify the exact SKU as 575901/A — HEX SOCKET BOLT M6X50_10.9.

Use 575901/A in Shopify, Google Shopping MPN, inventory labels, purchase orders and invoices. No newer suffix is claimed here.

When Should This Be Replaced?

• Hex socket is rounded or stripped.
• Threads are damaged.
• Bolt is bent or stretched.
• Severe corrosion is present.
• An incorrect-length bolt was previously fitted.
• Engine-cover restoration requires correct OEM hardware.

Recommended Related Parts to Check

• 575900/B – M6×40 engine-cover bolt family.
• 575388 – M6×35 socket-head bolt.
• Relevant clutch / magneto / engine-cover gasket.
• Thread condition in the engine cover or crankcase.
• Other cover fasteners if several have been rounded or mixed.

What’s in the Box

1 × Genuine Royal Enfield 575901/A M6×50 Grade-10.9 Hex Socket Bolt

Quantity 1 means one individual bolt, not a complete engine-cover bolt set.

Installation Notes

1. Confirm the exact EPC position specifies 575901/A.
2. Compare the removed bolt length with the replacement.
3. Clean the threaded hole.
4. Start the bolt by hand to prevent cross-threading.
5. Never substitute a longer M6 bolt solely because the thread diameter matches.
6. Tighten to the applicable Royal Enfield workshop torque specification.

Return-Prevention Note / Before You Buy

1. Match the complete SKU 575901/A.
2. Confirm that you require an M6×50 socket-head bolt.
3. Do not confuse it with 575900/B M6×40.
4. Do not order by M6 diameter alone; bolt length and application matter.
5. Check the quantity needed before ordering.

Correctly supplied spare parts are not returnable or exchangeable because of incorrect selection, mechanic recommendation, incorrect bolt length, quantity mistake, fitment mismatch or change of mind. Orders cannot be cancelled once placed. Eligible wrong-item or damaged-item claims require applicable proof and a complete unboxing video under store policy.

FAQs

What is 575901/A?
It is a genuine Royal Enfield M6×50 grade-10.9 hex socket bolt used in specified engine-cover positions.

Does it fit Interceptor 650?
Yes, where the engine-cover EPC specifies 575901/A.

Does it fit Continental GT 650?
Yes, where specified.

Is 575901/A the same as 575900/B?
No. 575901/A is M6×50 while the 575900 family is M6×40.

Is quantity 1 a bolt set?
No. Quantity 1 means one individual bolt.

Can I use any M6×50 bolt?
Use the OEM-specified fastener. Thread pitch, property class, head style and application all matter.

SEO Tags

Royal Enfield, Genuine Royal Enfield Parts, 575901/A, 575901A, 575901, HEX SOCKET BOLT M6X50_10.9, M6x50 Bolt, M6 x 50 Bolt, Engine Cover Bolt, Clutch Cover Bolt, Magneto Cover Bolt, Allen Bolt, Socket Head Bolt, Grade 10.9 Bolt, Interceptor 650, INT650, Continental GT 650, GT650, 650 Twin, Engine Fasteners, OEM Spares

Image Filename Suggestions

• royal-enfield-575901-a-m6x50-engine-cover-bolt.jpg
• interceptor-gt650-m6x50-allen-bolt-575901-a.jpg
• royal-enfield-650-twin-engine-cover-bolt-575901-a.jpg

Image Alt Text

Genuine Royal Enfield 575901/A M6×50 grade 10.9 engine-cover hex socket bolt for Interceptor 650 and Continental GT 650

Google Shopping Notes

Competitor Gap Analysis

Typical seller pages only identify 575901/A as an M6×50 bolt. This listing improves buyer clarity by documenting the grade-10.9 specification, separating it from the 575900 M6×40 bolt family, confirming Interceptor 650 and Continental GT 650 engine-cover applications, explaining one-piece retail quantity, and reducing wrong-length fastener errors.