Air and Fuel› Fuel Injection Systems and Components - Electronic

Racetronix

42 lb/hr Disc High-Z Fuel Injector

$50.20

SKU: FJ-SM-12S

In Stock
In Stock
Ships by Jul 30
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Racetronix 42 lb/hr Disc High-Z Fuel Injector is a high-performance replacement injector. It features a disc design that offers advantages over pintle injectors, including resistance to deposits and clogging, compatibility with alternative fuels like E85 and Methanol, and a longer service life. This injector also provides quieter operation and quicker starts due to no fuel leakage.

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

BrandRacetronix
Part NumberFJ-SM-12S
CategoryAir and Fuel

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.

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