USA Standard Gear

Differential Bearing Kit

$321.23

SKU: ZMBK199

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The USA Standard Gear ZMBK199 is a manual transmission bearing kit engineered to restore the functionality and reliability of your vehicle's transmission. Constructed with a durable aluminum case and a bottom pan design, this kit includes all the necessary bearings for a comprehensive rebuild. Compatibility for this kit includes: - 1988-1989 Mazda 929 with a 5-speed transmission. - 1987-1995 Mazda RX-7 Turbo models. Note: This kit is for RX-7 Turbos equipped with a 75mm Center Mainshaft Bearing; some earlier models may have had a 68mm bearing and may not be compatible. - 1989-1993 Mazda MPV Vans, supporting both Rear-Wheel Drive (RWD) and Four-Wheel Drive (4WD) configurations. USA Standard Gear is known for providing quality drivetrain components that meet or exceed OEM specifications, making this bearing kit a reliable choice for transmission repairs and overhauls.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandUSA Standard Gear
Part NumberZMBK199
CategoryDrivetrain

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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