Exterior Components Body Panels and Components

USA Standard (Yukon)

USA Standard Manual Transmission NV4500 1st 2nd Fiber Synchro Ring Blockers NV4500 M T SYNCHRO RIN

$61.67

SKU: U018 ZMSR17078

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The USA Standard Gear ZMSR17078 is a manual transmission synchro blocker ring designed for the NV4500 transmission. This component is specifically the 1st and 2nd gear fiber blocker ring. It is also known by its GM part number 15635219.

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

BrandUSA Standard (Yukon)
Part NumberU018 ZMSR17078

Videos

Buy with Confidence

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