Yokomo MS-503GO O-ring Seal for BD11/BD12/MS1.0 Gear Differentials  [MS-503GO]

Yokomo MS-503GO O-ring for BD11/12/MS1.0 aluminum gear diff case
Price:
£1.97
Brand:
Yokomo
Model:
MS-503GO
GTIN:
639342229031
Condition:
Brand New
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Reliable Seal for Yokomo MS-503GO Gear Diffs

The Yokomo MS-503GO O-ring fits BD11, BD12 and MS1.0 aluminium gear differential cases, forming a close seal to prevent lubricant loss. By keeping diff fluid contained, it helps preserve gear and bearing life and supports predictable handling during club or competitive use.
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.

Will this O-ring work with alloy and steel diff cases?

The MS-503GO is intended for the BD11, BD12 and MS1.0 aluminium cases. Fit and sealing may vary with other materials, so check dimensions before use.

How do I check if the O-ring is still serviceable?

Inspect for cuts, flattening or hardening. If the ring does not return to shape or shows surface cracking, replace it to avoid leaks.

Are there special tools needed for installation?

No special tools are required. Clean the mating faces, apply a light smear of diff-safe grease, and press the O-ring into place carefully by hand.

Does the O-ring affect differential tuning?

The O-ring is a sealing component and does not change internal gear geometry or tuning. Its role is to preserve fluid levels so tuning settings remain stable over time.

Any storage advice for spare O-rings?

Store spares in a cool, dry place away from oils and solvents. Keep them in their original packaging or a sealed bag to avoid dust and deformation.

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