Drivetrain Differentials and Rear-End Components

ARB

ARB Gear SetK12 SideK1 Pin

$787.00

SKU: A00L 728K121

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

Advanced — 4+ hours

Description

This product is an ARB Gear Set, K12 Side, K1 Pin. It is designed to enhance a vehicle's drivetrain performance, primarily for 4WD vehicles. It optimizes power transfer from the engine to the wheels by changing the final drive gear ratio, which can improve acceleration and responsiveness in off-road conditions. While a higher final drive ratio can lead to increased engine RPM at highway speeds and potentially reduced fuel efficiency, it is ideal for off-road enthusiasts looking for improved torque and power delivery in challenging terrains.

Fitment

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Specifications

BrandARB
Part NumberA00L 728K121

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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