Kyosho IF403B MP9 Differential Case Set Front & Rear Replacement  [KY-IF403B]

Kyosho IF403B - Differential Case Set (F&R/MP9)
Price:
£5.91
Brand:
Kyosho
Model:
KY-IF403B
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 £5.16 each £1.50 or 13%
3+ £4.91 each £3.01 or 17%
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Kyosho IF403B Differential Case Set for MP9 Vehicles

The Kyosho IF403B Differential Case Set is a functional replacement part for INFERNO MP9 series models including MP9, MP9e and GT3. It helps keep the differential assembly operating with steady power distribution and improved control.

Designed Fitment and Benefits

This case set fits both front and rear positions on MP9 models and is intended as a direct replacement to preserve drivetrain alignment. Fitting the correct case supports predictable handling and reliable gear engagement during runs.
Remark :
Due to limited stock availability, please notice that some Kyosho 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.

Can I reuse diff oil when swapping the case?

If the oil is clean and free from metal particles you can reuse it, but when there is contamination or the oil is old, replace it to protect gears and bearings.

Are extra seals required with this case?

The stock case normally includes the sealing surfaces. Inspect seals during service and fit new ones if there are signs of leakage to ensure a clean diff assembly.

Is this suitable for both racing and casual use?

Yes. The IF403B serves as a reliable replacement for both competition and hobby use, helping maintain consistent drivetrain performance regardless of running style.

What signs indicate a failing diff case?

Look for rough rotation, unusual noises, or visible cracks. These symptoms usually mean the case should be replaced to avoid further drivetrain damage.

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