Jeep CJ year 81-86
with 4,2 ltr. (258cui) Engine
without AC, without Emission Pump
Jeep Wrangler YJ year 87-90
with 4,2 ltr. (258cui) Engine
Jeep SJ & J-Series year 81-90
with 4,2 ltr. Engine
Idler Pulley
Diameter: 3.95" -100mm; 6 Grooves
Replaces Part No.: J3239821 , 3239821