Yokomo BM-503 Ring Gear Set for B-Max4 Differential, 2 pcs [BM-503]

Yokomo BM-503 Diff. Ring Gear for B-Max4

Price:

NZD$5.70

Brand:

Yokomo

Model:

BM-503

GTIN:

3888

Not Available

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Spares / Hop-ups - Yokomo - B-Max4

B-MAX4 Ring Gear Specification

The Yokomo BM-503 is a direct replacement diff ring gear intended for use in B-MAX4 RC differential assemblies. This item is supplied as two ring gears and is designed for scale model differential rebuilds and routine maintenance rather than any real vehicle application.

Accurate tooth count and flange alignment are crucial when replacing a ring gear on a B-MAX4 diff to preserve consistent mesh and handling. The BM-503 pair suits users replacing worn parts or preparing gearsets for setup adjustments.

Installation notes: ensure the ring gear is seated evenly on the diff housing, verify pinion engagement with the correct shim method for your spur and pinion choice, and spin the assembly to check for smooth operation before closing the case. Match bearings and fastening hardware to the B-MAX4 specification to avoid fit issues.

Packing includes

Diff Ring Gear x 2 pcs

Remark :

Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

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Yokomo BM-503 Ring Gear Set for B-Max4 Differential, 2 pcs [BM-503]

B-MAX4 Ring Gear Specification

Packing includes

How do I confirm the BM-503 matches my B-MAX4 diff?

Is this a genuine Yokomo spare or aftermarket substitute?

What should I inspect after fitting these gears?