Great service
Great service. Will for sure order again
By nina P.
Sunday, November 8, 2026 · Customer reviews of US businesses

The Fair Hearing score
Great
127 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Heavy Duty Kits Has Over 30 years experience in Supplying Diesel Engine Rebuild Kits, Overhaul Kits, and parts for CAT, Cummins, Mack, Navistar and for other Engines, Call +1-888-642-6460 to order.
HeavyDutyKits.com (heavydutykits.com) has 127 customer reviews on The Fair Hearing, with an average rating of 4.4 out of 5.
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Great service. Will for sure order again
By nina P.
Ordered late Friday was here Tuesday, and the best price I could find, good enough for me.
By Duster I.
Great customer service, quick shipping and outstanding pricing. They are everything you want from a parts supplier. I will definitely keep doing business with HD Kits!
By Laura
Stan was Very Professional and Experienced
By Ellerton M.
Jean provided outstanding customer service, very friendly, efficient and professional. The water pump I ordered for my semi arrive on time as he told me and in perfect condition. I would definitely, order more parts from him. Maria
By Maria
Stan from heavy duty kits has been extremely helpful and all my parts came the next day. very satisfied with there service, and to make things even better i came out cheeper then getting it from the local parts store. thanks you so much HDKITS.
By James V.
Fast! Thanks
By Justin C.
Absolutely phenomenal business, with a great price exquisite customer service and a fine tuned shipping process, you can’t go wrong! Definitely using them again!!
By W. H.