Genuine Front Wheel Spindle / Front Axle for Royal Enfield Bullet 350 ES (BS4) | 1040586/A | OEM

A bent or scored front wheel spindle (front axle) can cause wheel misalignment, uneven fork clamping, vibration, and premature bearing wear—especially after pothole hits or incorrect installation torque. Royal Enfield 1040586/A is the Genuine OEM “SPINDLE-FRONT WHEEL”, designed to keep the front wheel correctly centered and clamped within the fork bottoms for safe braking and stable steering. 

This part number is confirmed in Royal Enfield parts systems as 1040586/A SPINDLE-FRONT WHEEL, and dealer listings map it specifically to Bullet 350 ES – BSIV (BS4). 

Unlike many aftermarket axles that can vary in tolerance and finish, an OEM spindle helps maintain the correct spacer stack alignment and reduces the risk of recurring wheel play or “tight spot” rotation. Replace the spindle if threads are damaged, the axle surface has grooves, or the wheel doesn’t align cleanly after tightening.

Return-prevention note: Royal Enfield uses different spindles across variants/years (ABS vs non-ABS, disc/drum). Please order only if your bike matches the compatibility table or your old part confirms 1040586/A.

Key Features

• Genuine Royal Enfield OEM part number 1040586/A 

• Official description: SPINDLE-FRONT WHEEL 

• Confirmed fitment mapping: Bullet 350 ES – BSIV (BS4) 

• Restores correct wheel centering and fork clamp alignment (when installed with correct spacers)

• Recommended when axle is bent, threads damaged, or axle surface is scored

• Helps prevent repeat wheel-bearing failures caused by misalignment

• Ideal for front-end rebuilds, accident repairs, and restoration jobs

• Price reference in RE customer price list: MRP ₹269 (may change) 

Compatibility Table 

PLEASE CHECK PART NUMBER BEFORE PURCHASE 

❓ Verify Fitment (Not confirmed — do not assume)

• Bullet 350 KS variants

• Bullet/Classic 350 ABS / disc variants

• Classic 350 / Electra / Thunderbird / 500 UCE variants

• J-Series 350, 650 Twins, Himalayan/Scram platforms

If your model differs, match by microfiche/VIN or confirm the old axle part number.

Variants

• Single unit (1 pc) — Front Wheel Spindle / Axle 1040586/A
  (No LH/RH variants for an axle.)

FAQs 

1) What is 1040586/A?
It’s the Genuine Royal Enfield SPINDLE-FRONT WHEEL (front wheel axle). 

2) Will it fit Bullet 350 ES BS4?
Yes—dealer mapping lists it for Bullet 350 ES – BSIV (BS4). 

3) Does it include nut/spacers/bearings?
No—this listing is for the spindle/axle only. Reuse or replace spacers/nut as per inspection and service manual.

4) My front wheel has play or bearings keep failing—should I change the spindle?
If the axle is bent/scored or clamp seating is uneven, yes. Also inspect spacers and wheel bearings.

5) Is “front axle” the same as “spindle”?
Yes. Royal Enfield commonly uses the term spindle for the axle.