Exterior Components› Body Panels and Components

Yukon Gear & Axle

USA STANDARD MANUAL TRANSMISSION MR

$135.36

SKU: Y001 ZMM5R1-21A

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The USA Standard Gear ZMM5R1-21A is a manual transmission gear designed for 2nd gear applications. This aluminum gear features 31 teeth and is specifically engineered for Ranger and Mazda vehicles equipped with the 4.0L engine.

This component is a direct replacement for worn or damaged transmission gears, helping to restore proper shifting function and drivetrain performance. It is part of USA Standard Gear's line of manual transmission components.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandYukon Gear & Axle
Part NumberY001 ZMM5R1-21A

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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