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DTech Fuel Return Line Kit — 2001-2004 GM Silverado/2500HD/3500HD/Sierra Duramax 6.6L LB7
$10.09
PART # DT660020DTech
Fits: 2001-2004 GM (6.6L Duramax LB7) Will this fit my truck?
Free shipping on orders $50+
Under $50 ships for a flat $12.95. Oversize parts are freight-quoted first. Shipping policy
30-day returns
Unused, uninstalled parts in the original packaging. No restocking fee. Return policy
Questions about fit?
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The DTech DT660020 is a fuel return line kit for 2001-2004 GM Silverado HD and Sierra HD with the 6.6L Duramax LB7. The LB7's fuel return lines are a known failure point — cracked or leaking return lines cause hard starts, air in the fuel system, and fuel odor. DTech's kit replaces them with quality components built for the LB7.
Product details
| Brand | DTech |
|---|---|
| Vehicle fitment |
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