Its always best practice to replace these return line bolts and banjo seals during any LB7 fuel injector install. These bolts are notorious for stripping out during removal. Our DHD return line bolts provide a cost effective solution to replacement rather then $20 a bolt for OE.
These banjo style bolts secure the steel snake shaped return rail to fuel injector. Each kit includes 8 bolts, enough to service 1 LB7 Duramax.
Fitment:
2001-2004 LB7 Duramax 6.6L
Works with OE and Aftermarket Replacement Injectors
Works with OE and Aftermarket Return Lines (Dorman 800-915, GM 97188733)
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Reviewed by: Noah12/13/2025 08:00PM
Product ownership: Less than 1 month
Purchased from: Dirty Hooker Diesel
Comments:
Good OE quality replacement. These bolts are known to strip when removing.