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12V VR6 Power Pulleys

4.10 LBS

Product Description offers a complete matched set of ultra sleek lightweight 12V VR6 power pulleys. 

Our kit includes the lightweight billet crank, power steering, water pump, tensioner, and alternator pulleys for your 12V VR6 engine. These pulleys are precision CNC'd from aircraft grade billet aluminum and reduce the rotating mass by a whopping 8.5 lbs! All pulleys ARE NORMAL DRIVE (NOT UNDER-DRIVE). These pulleys will not change the speed of the supercharger and will not void any supercharger warranties. Installation of any or all of our pulleys does not require different length belt, and will not affect aftermarket supercharger installations. Please choose your pulley from the drop down menu below. 

Buy them as a matched set instead of cobbling together pulleys from several companies and save $$!

Lightweight Billet Aluminum VR6 Tensioner Pulley 
Plastic may have made the bean counters at VW happy, but it has no business as a pulley on your high strung VR6 motor. Ours is extremely light weight and contains a precision bearing that will far outlast the OEM. We even use a snap ring to install the bearing, so if replacement was ever needed, it’s a breeze. Fits Mk2, Mk3, and Mk4 12 Valve VR6 VW engines and replaces P/N 021-145-299 (021145299) 

Click Here for Installation Instructions

Lightweight Billet Aluminum 12V VR6 Water Pump Pulley 
The OEM steel water pump pulley is stamped which creates internal stresses that eventually cause the pulley to crack at the sharp bend radius. Needless to say, you don’t need this problem on a hot running VR. Ours is machined from a solid chunk of aluminum with generous corner radii and is therefore many times stronger than OEM. Weighing in at a scant 250 grams, its less than half the weight of the stamped OEM pulley. Fits ALL Mk2, Mk3 and Mk4 12 Valve VR6 VW engines as well as 3.2L Audi A3, TT, and Q7 and replaces P/N 021-121-031A (021121031A)

Lightweight Billet Aluminum 12V VR6 Crank Pulley 

This pulley is NOT under-drive! 

Lose the boat anchor of the Audi and VW VR6 steel crank pulley with this 500 gram lightweight billet aluminum version. It is the lightest crank pulley out there and will allow the engine to spool up faster while preventing inertial losses caused by the overweight OEM pulley. It has been proven by countless hours of track abuse in normally aspirated, turbocharged, and supercharged VR6 engines (WILL NOT VOID SUPERCHARGER WARRANTIES!). Don’t believe the hype about more expensive, heavier, dampened pulleys. Ours HAS BEEN TESTED THOROUGHLY ON TRACK at RPM’s far exceeding redline. The VR6 motors are INTERNALLY BALANCEDand do not require expensive, heavy dampened crank pulleys. The factory pulley comes with a thin layer of rubber because it is cheaper to manufacture, and reduces very little vibration at idle inside the car. There is no benefit to it off idle. You Simply Will Not Ever Go Back to a Heavy Crank Pulley After Installing This One! . Ours comes with a specially machined replacement key for a perfect fit. Fits Mk2, Mk3, and Mk4 VW VR6 engines and replaces P/N 021-105-243 (021105243).

Lightweight Billet Aluminum 12V VR6 Power Steering Pulley 
A lightweight billet aluminum version of the OEM power steering pulley which will lessen the parasitic losses from the power steering pump. This pulley fits ALL MK2, MK3, and MK4 12 valve VR6 engines. Please note this pulley is non-ribbed. Similar to the water pump pulley, ribs are not needed to drive the power steering pulley. This pulley has been proven by countless hours of track abuse with no problems whatsoever. Fits Mk2, Mk3, and Mk4 VW VR6 engines and replaces P/N 021-145-255 (021145255)

Lightweight Billet Aluminum Alternator Pulley 
A 100 gram paper-light billet aluminum version of the steel OEM alternator pulley that lets the motor spin more freely. Complete your pulley set for a show quality engine bay. Fits Mk2, Mk3 and Mk4 12 Valve VR6 VW engines and 2.0L 4 cylinder engines and replaces P/N 021-903-119 (021903119)

Product Reviews

Showing reviews 1-10 of 12 | Next

  1. alternator pulley 5 Star Review

    Posted by on 6th Nov 2023

    The pulley looks and fits fantastic. wish it wasn't 70$ but since no one else produces 7 rib pulleys anymore. it's all I got. keep your pulleys when you turn in your alternator cores. I got the whole gruven, AAA 12v vr6 pulley set on my Corrado also minus the crank pulley. Been on there for years.

  2. Exactly what i was looking for. 5 Star Review

    Posted by on 23rd May 2021

    So much lighter than stock! The fact that they look beautiful is just the icing on the cake. Waterpump, power steering, and tensioner installed so far and will be doing the others soon. Making these engines just that little bit more rev happy is just what they need. Great product, I've installed almost every part Gruvenparts makes for the mk4 12v and have yet to be disappointed.

  3. killer product 5 Star Review

    Posted by on 20th Jun 2020

    Works great super happy fast shipping

  4. Great Stuff at resonable price 5 Star Review

    Posted by on 12th Apr 2019

    I started by replacing the cheap plastic tension pulley 1st and had no issues, I had to replaced my water pump and decided to replace cheap rusted steel pulley. Now will never have replace that pulley again. Aluminum is lighter and doesn't rust thepulley fit and finish is superb.

  5. 12V VR6 water pump pulley 5 Star Review

    Posted by on 17th Jan 2019

    Excellent pulley in addition to the other goodies under the hood of my ABA MK3 Cabrio with power steering and AC delete!

  6. Great Buy!!! 5 Star Review

    Posted by on 13th Feb 2017

    First off I want to start off saying that Paul is a good guy with great information he is very detailed in his explanation of his products! I just got the pulleys in the mail today and they are exceptionally well crafted and VERY light! I haven't put them on the car yet but will be here in about a week or 2 and I can't wait product came pretty fast and was packaged VERY well with everything you need for a clean straight forward install this is going to be a fun install match it with a lightweight flywheel and this thing is going to be even more of a joy to drive can't wait!! Thanks again paul!!


    Thanks Andrew, please post install pics when you can and let us know if you need anything else.

  7. Great Product 5 Star Review

    Posted by on 18th Jul 2016

    These work as good as they look! Great product, great customer service, fast shipping! I can not say enough about the company! Thank you for making this stuff for our cars! AWESOME!

    -- response --

    Thanks man, please post up some pics on vortex, we all wana see them installed on your ride !

  8. QUALITY PRODUCT 5 Star Review

    Posted by on 11th Sep 2015

    Ordering online was super easy,
    And to my surprise I recieved my order (only a waterpump pulley) quicker then expected.
    The Quality of the waterpump pulley was extremely pleasing and no problems with installation .
    Thank you so much

  9. not to bad 4 Star Review

    Posted by on 20th Mar 2015

    The pullys i got have a good finish on them, they wernt scratched up or have any oils on them and they were nicly wraped up when i received them havnt gottEn to use them with the motor on yet but one thing i wish was changed was the power steering pump to have grooves on it like the stock one instead of being smooth.

    -- Response --

    Thanks for your comments. Please note the factory PS pulley on some models of VR6 is smooth like how we make ours. There is plenty of surface to grab the belt around the PS pulley so you will not experience any slippage whatsoever. If you do, please call us asap.

  10. Nicest Power Pulleys Money Can Buy! 5 Star Review

    Posted by on 22nd Oct 2014

    These pulleys are definitely my favourite by far! I'm glad I bought the entire set!
    I've managed to install them all, but one, without any issues at all!
    The crank pulley is about the only one I have not installed yet, as I haven't been able to make the time to do so yet.
    (Takes a great amount of torque to get the stock crank pulley off)
    But so far, I love the quality of each one, they fit perfectly, no noise difference at all, and I gained a slight, yet noticeable, response from my engine!
    Not to mention they look far better than the brown old stock pulleys, but also add a nice touch of "ooooh shiny!" to my engine bay!
    5 out of 5 stars, all the way around! GruvenParts definitely makes some great VR6 parts!

Showing reviews 1-10 of 12 | Next

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