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Underdrive Pulleys reclaim lost horsepower and mileage by reducing the drag placed on the engine to drive the accessories such as the air conditioning, power steering and water pump. Installation consists of simple bolt-on replacement of the stock pulleys.
be sure to buy the new serp. belt before installing. Read instructions!
Q: Does this pulley work for an srt8 and does it add horsepower? Answer this question
A: Fits Chrysler and Jeep 5.7L and 6.1L engines.I am not seeing anything about an increase in horsepower.
Answered by Kelly from 4WP Corporate Headquarters on 03/29/2021
Q: Well these pulleys fit my 99 Sierra 4.3 liter engine? Answer this question
A: Hi, The Jet Performance Products Underdrive Pulley Set (Coated) - 90105 will fit the 4.3 Sierra
Answered by [email protected] on 12/05/2018
Q: Will this work on a 2000 dodge durango slt plus with a 4.7l engine? Answer this question
A: Hello Kaleo and thank you for your question! Jet Performance Products Underdrive Pulley Set part number JET90501 is for a Jeep Cherokee, try JET90127 for your 2000 Dodge Durango.
Answered by Nick on 12/13/2014