Air and Fuel› Fuel Injection Systems and Components - Electronic

GB REMAN INC

INJ. RETURN LINE GASKETS

$28.40

SKU: G03K 522-030

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The GB Remanufacturing 522-030 is a fuel injection return line gasket kit designed for Duramax LB7 engines. This kit includes banjo bolt seals to reseal the injector fuel return rail manifold. It is available in options for 4 or 8 injectors, ensuring a fit, form, and function equivalent to original equipment.

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

BrandGB REMAN INC
Part NumberG03K 522-030

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