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Drivetrain› Manual Transmissions and Components

USA Standard Gear

Manual Transmission Bearing Kit

Name: Manual Transmission Bearing Kit
Brand: USA Standard Gear
SKU: ZMBK133BWS

$211.89

SKU: ZMBK133BWS

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$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The USA Standard Gear ZMBK133BWS is a manual transmission bearing kit designed for 1987-1989 Nissan 300ZX models with synchros. This kit includes essential components for rebuilding transmission bearings.

It features a 61mm O.D. front countershaft bearing and a 26mm O.D. input pocket bearing. The kit also contains synchronizer rings, including a multi-piece 2nd gear synchro ring, with the 1st-2nd gear synchro rings being larger than the 3rd-4th gear synchro rings.

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The USA Standard Gear ZMBK133BWS is a comprehensive manual transmission bearing and seal overhaul kit specifically engineered for 1987-1989 Nissan 300ZX models equipped with synchros. This kit contains all the necessary components to effectively rebuild the bearings within your transmission. Key included parts feature a 61mm Outer Diameter (O.D.) front countershaft bearing and a 26mm O.D. input pocket bearing, ensuring precise fitment for the intended application. The kit also provides multiple synchronizer rings, including a multi-piece 2nd gear synchro ring, and highlights that the 1st-2nd gear synchronizer rings are dimensionally larger than the 3rd-4th gear rings.

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

Brand	USA Standard Gear
Part Number	ZMBK133BWS
Category	Drivetrain

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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

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