Kyosho MZ404B Servo Gear Kit for Mini-Z MR-03  [KY-MZ404B]

Kyosho MZ404B - Servo Gear Set(for MR-03)
Price:
CAD$8.79
Brand:
Kyosho
Model:
KY-MZ404B
GTIN:
4548565477012
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 $7.88 each $1.82 or 10%
3+ $7.49 each $3.90 or 15%
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Precision Replacement Gears for Mini-Z MR-03 by Kyosho MZ404B

The Kyosho MZ404B servo gear set is built for the Mini-Z MR-03 line, providing a dependable replacement to restore tight steering response and smooth servo action during track sessions or casual drives. These gears help your servo retain accurate centering and repeatable inputs so you can focus on tuning and driving.

Model Fit and Intended Use

Designed to suit MR-03 RWD models, this gear set is a straightforward option for replacing worn components or as part of scheduled maintenance. The MZ404B is intended to fit without modification, helping your chassis keep responding precisely to your transmitter commands.

Fitting Advice

Clean the servo casing and remove any grit before fitting the MZ404B gears to avoid binding. Line up the gears carefully and test the full travel at low throttle before regular use. Recheck the mesh and mountings after a short run to ensure everything stays snug.
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.

Will the Kyosho MZ404B work on older MR-03 chassis?

The MZ404B is made for MR-03 RWD models; some older MR-03 variants may share the same layout but you should compare the servo mounting and spline fit before installing.

What are common signs that servo gears need replacing?

Look for steering slop, strange noises, or inconsistent centering. Visible wear on the gear teeth or excessive play at the servo output are clear indicators to replace the gears.

Can I swap to a different gear material with these parts?

If you plan to use a different material, check spline size and clearance first. Changing material may require verifying mesh and servo torque to avoid interference or premature wear.

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