Sale

Zumbrota Drivetrain

ZF S542 1st Gear

$235.00 $213.89 Save $21.11

SKU: ZMZF42-12

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

Description

The USA Standard Manual Transmission ZF S542 1st Gear, identified by part number ZMZF42-12, is a critical component for rebuilding or repairing ZF S542 manual transmissions. This 48-tooth gear functions as the first gear in the transmission sequence, ensuring proper operation from a standstill. Manufactured by USA Standard Gear, a brand under the Zumbrota Drivetrain umbrella, this component is built to meet the demands of manual transmission systems. The product details indicate it is specifically for the ZF S542 Manual Transmission and serves as the 1st Gear, featuring a 48-tooth count. This 1st gear is compatible with various Ford models equipped with the ZF S542 transmission. Specific fitment includes the Ford Bronco from 1989-1992 and the Ford F-150 from 1988 onwards, often associated with the 4.9L engine. Retailers such as TrailBuilt Off-Road, CarParts.com, and Custom Offsets list this part for models including the 1995 Ford F-150, and 1988-1992 Ford Bronco.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandZumbrota Drivetrain
Part NumberZMZF42-12
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy