Kyosho MZ404B MR-03 Servo Gear Replacement Kit  [KY-MZ404B]

Kyosho MZ404B - Servo Gear Set(for MR-03)
Price:
AUD$9.62
Brand:
Kyosho
Model:
KY-MZ404B
GTIN:
4548565477012
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 $8.62 each $2.00 or 10%
3+ $8.19 each $4.26 or 15%
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Direct-Fit Kyosho MZ404B Gears for Mini-Z MR-03

The Kyosho MZ404B servo gear set is a direct-fit replacement made for the Mini-Z MR-03 series, helping recover responsive steering and smooth servo operation after gear wear. Swap these parts to keep your car performing consistently on different surfaces.

Compatibility Notes

These gears are intended for MR-03 RWD models and are a practical choice for replacing fatigued or damaged parts. The MZ404B should install without chassis modification when matched to the correct servo arrangement.

Installation and Upkeep

Clean the servo cavity and inspect bearings before installing the new gears to avoid trapping debris. Align gear teeth carefully and verify that the servo center is stable before running. Regular checks will prevent sudden failures on the track.
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 install the Kyosho MZ404B myself?

Yes, the replacement is straightforward for most hobbyists familiar with MR-03 servos. Work slowly, keep parts clean, and follow basic reassembly checks to ensure correct operation.

Should I check anything after the first run?

After a short run, recheck the gear mesh, servo mounting screws, and centering. Thermal expansion and initial seating can change mesh slightly, so a follow up check is recommended.

Are replacement gears covered by warranty?

Warranty depends on the retailer and original manufacturer policy. Keep purchase records and check the supplier terms for coverage details.

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