6% Smaller Jaguar Upper Supercharger Pulley for 4.0 and 4.2L 1998-2009 Jaguar XJR, XKR & S-Type R.

Requires a Hydraulic Press

This smaller supercharger pulley will give you a modest power improvement of approximately 20hp on 4.0L & 25hp on 4.2L. The Pulley should be added along with supercharger porting and Performance Exhaust for a big performance kick. Your car will still retain the factory belt and "NO Modifications" to the blower are required for installation.

Fits all Jaguar XJR, XKR, S-Type R with the 4.0L & 4.2L.

Fits Land Rover Range Rover and Range Rover Sport with the 4.2L

*No ECU Tuning is required for this Supercharger upgrade!

Made from Alloy Steel

Powder Coated Black

Approx. 2.74" Pulley Diameter

Eaton uses steel pulleys on all Superchargers! 

Please note this quote from our competitor's pulley listings!

"high strength and light weight composite alloy. This pulley is not aluminum (too soft)

and not steel or stainless (to difficult to install without heating)"

Composites are not metal and alloys are metal!  Composite alloy is just BS.
Translation is 6060 T6 alloy aluminum.  Not sure if they anodized or not!