USA Standard Gear

ZF S542 3rd/4th Gear Synchronizer Assembly

$207.79

SKU: ZMZF42-2.5A

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

Description

The USA Standard Gear ZMZF42-2.5A is a manual transmission synchronizer assembly engineered for the ZF S542 transmission. This component is a direct replacement for the 3rd and 4th gear synchro assembly, ensuring proper engagement and smooth shifting. This USA Standard Gear synchronizer assembly features included blockers, which are crucial for preventing gear clashes and enhancing the overall shifting experience. This part is specifically designed for the ZF S542 manual transmission and is compatible with various Ford F-250, F-350, and F-Super Duty models from 1987 to 1995.

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 NumberZMZF42-2.5A
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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