【Fitment】Fits for Duramax LB7 Chevy GMC GM Isuzu 2001-2004

【Function】Used to replace the injectors. This kit includes enough parts to install all 8 injectors

【Material】Made of durable copper, steel and silicone materials. Strong and Tough. Rust and corrosion resistance. Wear resistance. Carefully manufactured to ensure long time service.

【Package】Includes 16pcs External injector o-rings (2 for each injector), 8pcs Tip washers, 8pcs joined banjo washer pairs for connecting return lines to each injector, and 2pcs joined banjo washers for connecting the return line on each side to the head.

【Satisfaction Guarantee】If you're not satisfied with the product, simply return it for a refund in 30 days. We support 30-day refund for return and 12-month warranty.