Air and Fuel› Fuel Pumps, Regulators and Components

Fleece Performance

1116 GM 2500/3500 DURAMAX LML REPLACEMENT CP3 RETURN HOSE FOR CP3 CONVERSION KI

$34.16

SKU: F007 -LML-HS-RTRN

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

Easy — 1–2 hours

Description

The Fleece Performance FPE-LML-HS-RTRN is a replacement CP3 return hose designed for 2011-2016 GM 2500HD and 3500HD trucks with the 6.6L Duramax LML engine.

This hose is a direct-fit replacement for Fleece CP3 conversion kits and is compatible with all prior and current models. It is built to maintain proper fuel return flow and handle high-pressure diesel fuel systems, ensuring reliability and consistent fuel pressure.

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

BrandFleece Performance
Part NumberF007 -LML-HS-RTRN

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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