1979-93 Mustang ASP Aluminum Underdrive Pulley Kit Red 5.0 by ASP

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1979-93 Mustang ASP Aluminum Underdrive Pulley Kit Red 5.0

Add some underhood detail while picking up hopsepower on your 79-93 Mustang 5.0 with these Red Aluminum Underdrive Pulleys by ASP.

Item #ASP-822125
MPN# 822125

Everyday Low Price: $159.99

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Benefits

Increase Horsepower
Reduce Drag
Added Detail

Features

Red Finish Pulleys
Billet Aluminum Construction
25% Underdrive Crank
15% underdrive Water Pump
950 RPM Full Charge
Installs with simple hand tools

What's in the Box

(1) 25% Crank Pulley
(1) 15% Water Pump Pulley
(1) 2 1/2" Alternator Pulley
Installation Hardware

Underdrive pulley systems increase engine horsepower by reducing the amount of power required to drive external engine accessories. For example, the alternator, power steering, water pump and air compressor rob horsepower from the engine. By replacing factory-sized crank and accessory drive pulleys with a resized pulley, the accessories are slowed, resulting in more horsepower available to the drive wheels. Typically, a set of Auto Specialties street pulleys will increase horsepower by 12-15, and increase mileage by 2 to 3 MPG. All pulleys are manufactured from Billet Steel or Aluminum, exceeding factory quality.

Product Note
Due to the difference in diameter from the stock Mustang pullies, the alternator and charging system may need to be upgraded if you have a large stereo system.

Pulley Measurements

Alternator Pulley - 2.47"
Crank Pulley - 4.625"
Water Pump Pulley - 5.438"

Application

Fits 1979-1993 V8 Mustangs

The alternator pulley in this kit will only work with the stock 75 amp alternator. The underdrive alternator pulley will NOT work on 3g upgrades.

ASP / Performance Machine Works Warranty - Click Here

Ford Mustang - 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
Engines: 5.0

How To Remove & Install Fox Body Pulleys | 79-93 Mustang

Check out 5.0 Resto's Fox Body pulley removal and installation steps! This applies to 1979-93 Mustangs and they are sure to make it as easy as possible! more

Read more: fox body , 79 93 mustang , cobra

Posted on 10/8/2020

California Residents:

WARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov

About This Brand

ASP - Quality. Performance. Products.
ASP is one of the industry's leading producers of Mustang performance pulleys. Since 1988 ASP has been machining underdrive pulleys in house to give you the most performance for your Mustang. Each pulley goes through a CNC lathe for accurate measuring and cutting. The pulleys go through 2 cycles and a quality check to ensure each part is perfect before it leaves out of the door.