USA Standard Gear

Manual Transmission Bearing and Seal Overhaul Kit

$500.89

SKU: ZMBK391

In Stock
In Stock
Ships by Sep 1
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The USA Standard Gear ZMBK391 is a comprehensive manual transmission bearing and seal overhaul kit specifically engineered for the 1994 and newer Acura Integra GS models equipped with the 1.8L 5-speed manual transmission. This kit provides all the necessary components to rebuild the bearings within your transmission, ensuring smooth operation and longevity. The kit includes a 72mm Outside Diameter Ball Type Rear Input Bearing, which is crucial for proper alignment and smooth rotation of the input shaft. These components are vital for the internal integrity and performance of the AX-5 manual transmission. USA Standard Gear is known for providing better-than-OEM drivetrain components, making this kit a reliable choice for shops, builders, and home garage enthusiasts undertaking a transmission rebuild.

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 NumberZMBK391
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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