Drivetrain› Manual Transmissions and Components

USA Standard Gear

Manual Transmission Bearing Kit

$368.99

SKU: ZMBK391WS

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Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The USA Standard Gear ZMBK391WS is a manual transmission bearing kit designed for Acura vehicles with synchronizers. This kit is specifically for the 1994-2001 Acura Integra, featuring Vtec engines and Y80 or S80 transmissions with a 5-speed manual gearbox. It includes a 72mm O.D. ball type rear input bearing and tapered differential bearings.
Show original supplier description
The USA Standard Gear ZMBK391WS is a comprehensive manual transmission bearing and seal overhaul kit engineered for specific Acura models. It is explicitly designed for the 1994-2001 Acura Integra. This particular bearing kit is tailored for Integras equipped with Vtec engines and either the Y80 or S80 transmission codes, specifically for manual transmission control with a 5-speed base gear. Key components include a 72mm outside diameter ball-type rear input bearing and tapered differential bearings. The kit also includes synchronizer rings, providing a complete solution for transmission bearing replacement. USA Standard Gear is known for providing better-than-OEM drivetrain replacement parts, aiming for reliability and performance. This kit aims to restore the transmission's integrity, offering a cost-effective alternative to full transmission replacement. It is important to verify fitment for your specific vehicle configuration.

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 NumberZMBK391WS
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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