Idler pulley
Product number:
256690
for supercharger drive belt - upper ribbed pulley
Product Information "Idler pulley"
Jaguar: X300 (XJ) 4.0 Supercharged from VIN...720125 to 812255 (1994-97)
for supercharger drive belt - upper ribbed pulley
Counterpart
Tension pulley
for supercharger drive belt - lower non- ribbed pulley
More info...
Product number: 256691