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At Diesel Express Online we care about our customers and their diesel performance and diesel part needs. If you get your product and there appears to be anything that happened during shipping you will need to contact us within five (5) business days. If for any other reason you decide to return your diesel performance parts or other diesel parts you must return it within 30 days of your initial purchase and a 20% restocking fee will be applied or you will be able to exchange for other products within 30 days also, with the requirement that the product you purchased is unopened. Each manufacturer is different so if the products your purchase become defective their return policies are as follows.

Performance Chips- For Hand held Programmers by Superchips, Diablo Sports, Hypertech and BD there is a lifetime guarantee. If there are any flaws in the manufacturing or programming return the programmer to us and we will replace it. You can return them within five (5) business days for a full money back return if after we test it it shows that it has not been connected to a vehicle. For Diesel Performance Chips by Edge Products, there is a two year guarantee for manufacturing or programming flaws.

Diesel Injection Pumps- All diesel injection pumps purchased from Diesel Express Online have a 12 month unlimited mile warranty. If you have any troubles let us know. Warranties will be voided if the seals are broken or appear to be tampered with in any way. Warranties will also be voided if by water damage is found in our diesel injection pumps when you return them.

Turbo Chargers- All of our turbo charges including the Ball Buster Turbo Kit are backed by a 12 month 12,000 mile warranty. The conditions on which warranties are voided on turbo chargers and turbo charger kits are voided are if the seals are broken or tampered with in any way also, if we find that there is oil contamination.

Turbo Charger Repairs and Diesel Injection Pump Repairs- All full overhaul or complete rebuilds are covered by the warranties as stated in the above categories. All partial rebuilds or repairs will not be warrantied.

If you have questions on the return policy on any specific product send us your questions at here. You will be responsible for postage on all returns.

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