VR6 Cogged Supercharger Pulleys

** Product is On Hold due to lack of Interest **

GruvenParts.com is announcing this prebuy for a set of 4 ultra lightweight billet aluminum cogged supercharger pulleys and a billet FLAT waterpump pulley intended for use on the MKII/MKIII/MKIV VW VR6 engines using VF or AMS Vortech supercharger kits.  All pulleys in this kit are custom CNC machined with an 8HDT positive drive profile from 6061-T651 aerospace grade aluminum and are hard anodized black.  This lightweight cogged pulley kit reduces the rotating mass of the OEM serpentine pulleys by more than 7 lbs and will turn your supercharged VR6 into a lightning bolt !  

Please see the specific information listed below for each pulley and note this is a prebuy which means we will build them once we receive 15 set orders.  The screen shot image is a estimate of what the pulleys will look like. We may make minor changes to facilitate manufacture.  Lead time is a few weeks once we begin production and you can check the status of your prebuy by emailing Paul@GruvenParts.com.  

Lightweight Cogged Supercharger Pulley : Machined to perfectly fit Vortech chargers installed with the AMS or VF kits (use the supplied spacer if you have the VF kit).  This pulley is sized at 24T (2.4") with an 8  HDT positive drive cog profile.  You will reuse your existing pulley woodruff key when installing this pulley.  

Lightweight Cogged Alternator Pulley : A cogged version the OEM serpentine alternator pulleys found on VW MK2, MK3 and MK4 12 VR6 VW engines with OEM P/N 021-903-119 (021903119) and P/N 022-903-119A (022903119A) and 038-903-119B (038903119B) for 24V VR6 engines.  Please verify your OEM P/N matches that shown, or is interchangeable with that shown before ordering.  This pulley uses a 8HDT positive drive cog profile.

Lightweight Cogged Power Steering Pulley : A cogged version of the OEM power steering pulley to fit ALL MK2, MK3, and MK4 VR6 engines and replaces OEM P/N 021-145-255 (021145255).  This pulley uses a 8HDT positive drive cog profile.

Lightweight Cogged Crank Pulley : A cogged version of the OEM crank pulley with specially machined key included to fit ALL MK2, MK3, and MK4 VR6 engines and replaces OEM P/N 021-105-243 (021105243) for 12V VR6 and 022-105-243A (022105243A) for 24V VR6.  This pulley uses a 8HDT positive drive cog profile.  This pulley is sized the same as OEM so will not overdrive or underdrive any components in the system.

Lightweight Billet Aluminum Flat VR6 Water Pump Pulley : Our tried and true billet aluminum water pump pulley made to fit ALL MK2, MK3, and MK4 VR6 engines and replaces OEM P/N 021-121-031A (021121031A).  Note this pulley is NOT COGGED, you can see pics of it by clicking HERE.

Please note customers will need to source their own single sided 8mm HDT cog belt for this system.  These belts are readily available from a variety of sources online in various lengths to suit your specific needs.