| Author |
Message |
74 Thing Samba Member

Joined: September 02, 2004 Posts: 7672
|
Posted: Wed Nov 26, 2025 11:58 pm Post subject: Are there any good alternator pullies? What do you use? |
|
|
The three I have are old German ones with the tangs, but when I put a dial indicator on them they do not run true-high to low is .020" or more. I haven't been able to straighten them out either.
Is there any good aftermarket ones since in the past everything I have tried were not good.
Thanks |
|
| Back to top |
|
 |
Glenn  Mr. 010

Joined: December 25, 2001 Posts: 80390 Location: Sneaking up behind you
|
|
| Back to top |
|
 |
ZEKE65 Samba Member

Joined: December 16, 2018 Posts: 356 Location: Right Coast, Florida
|
Posted: Thu Nov 27, 2025 6:51 am Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
I had an issue with an aftermarket pulley, so I went back to an old German one. It works well. _________________ 1965 VW Sedan, 1968 C10 Step BB, 99 C5 |
|
| Back to top |
|
 |
richparker Samba Member

Joined: November 24, 2011 Posts: 7742 Location: Durango, CO
|
|
| Back to top |
|
 |
txoval Samba Member
Joined: January 23, 2004 Posts: 3887 Location: The Woodlands, TX
|
Posted: Thu Nov 27, 2025 6:15 pm Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
| CB billet alum pulley is very nice |
|
| Back to top |
|
 |
Rob Combs Samba Member

Joined: December 30, 2020 Posts: 832 Location: South Bay LA, California
|
Posted: Fri Nov 28, 2025 11:42 am Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
The CB 2164 Rich linked is a good value.
I had a new “made in Germany” pulley from a supplier that specializes more in stock replacement/restoration parts and it would not align to the crank pulley without shimming the crank pulley out so far it probably wouldn’t hold oil back. And i had to hone the inside of it to get it to go on the alternator.
No such trouble with the CB pulley. Slid right on and aligned well. |
|
| Back to top |
|
 |
daveblank Samba Member
Joined: November 07, 2024 Posts: 243 Location: Dallas, TX
|
Posted: Fri Nov 28, 2025 12:44 pm Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
I use the CB 2163. I have the 90A alternator so I felt that the cooling fins wouldn't hurt.
https://www.cbperformance.com/product-p/2163.htm |
|
| Back to top |
|
 |
modok Samba Member

Joined: October 30, 2009 Posts: 27754 Location: Colorado Springs
|
Posted: Fri Nov 28, 2025 3:33 pm Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
| Yep, get it from cb |
|
| Back to top |
|
 |
Esky Samba Member

Joined: March 18, 2006 Posts: 87 Location: Carlsbad
|
Posted: Fri Nov 28, 2025 5:15 pm Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
| Yep the CB pulley is great. Have spun my motor over 7,500 many times and haven't flipped a belt. |
|
| Back to top |
|
 |
jim martin Samba Member

Joined: January 14, 2004 Posts: 399 Location: Vancouver, BC
|
Posted: Fri Nov 28, 2025 5:42 pm Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
Here is something that is many times overlooked.
Crappy photos but you will get it . I use a spring clamp and clip a aluminum angle iron section and measure from belt to its edge at the crank pulley then up at the alternator, generator or in this case vacuum pump and shim from there . If you keep your belt square you will never have any issue _________________ B.C's fastest street legal vw , June 2006 Hot VW's feature car 9.81 sec at 145.26mph.
Sponsored by :
LUCAS OIL PRODUCTS http://www.lucasoil.com
KROC head porting services
Dialedinperformance.com
Airspeedparts.com topic http://airspeedparts.com/forums/index.php?topic=914.0 |
|
| Back to top |
|
 |
jpaull Samba Member

Joined: February 22, 2005 Posts: 3678 Location: Paradise, Ca
|
Posted: Fri Nov 28, 2025 6:55 pm Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
I run with belt on at the track. The cb pulley is nice but it is wearing and can feel belt grooves a little. Maybe its fine for street driving but steel will last longer if you can find a good one.
_________________ [email protected] MPH 1/4 Mile & 8.1 @ 83.7MPH in 1/8 Mile with Mild Type 1 VW Mag Case 2234cc commuter engine in stock weight bug w/only .491 total lift(CB2292 Cam), 42x37 heads, 48idf's, Street tires, Belt on, Mufflers, Pump gas, video of the run here: https://youtu.be/M3SPqMOKAOg
Transmission by MCMScott:
Rhino case, Klinkenberg 4.12, Superdiff, 002 mainshaft with 091 first idler. Weddle 1.48 Third & 1.14 Fourth. |
|
| Back to top |
|
 |
chrisflstf Samba Member

Joined: February 10, 2004 Posts: 4220 Location: San Diego
|
Posted: Fri Nov 28, 2025 8:15 pm Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
| Ive used steel pulleys made by Flat Four of japan. A number of distributors sell them. I would buy again, no problemo |
|
| Back to top |
|
 |
jim martin Samba Member

Joined: January 14, 2004 Posts: 399 Location: Vancouver, BC
|
Posted: Fri Nov 28, 2025 8:50 pm Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
I like the solid gates belts and always adjust so when I have a wrench
On the alt pulley I can break it free easily and spin . Will help with wear _________________ B.C's fastest street legal vw , June 2006 Hot VW's feature car 9.81 sec at 145.26mph.
Sponsored by :
LUCAS OIL PRODUCTS http://www.lucasoil.com
KROC head porting services
Dialedinperformance.com
Airspeedparts.com topic http://airspeedparts.com/forums/index.php?topic=914.0 |
|
| Back to top |
|
 |
Murt Samba Member

Joined: October 01, 2017 Posts: 657 Location: Kent, England
|
Posted: Sat Nov 29, 2025 12:46 am Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
On my 1800cc build, I went with the CSP Pulley, very well made, and fitted perfectly
On my current 2007cc build, I have gone for the RossWulf kit, yet to open open it up, but looks nice as well
_________________ 1966 VW Beetle ‘Jules’
1967 Kombi Splitscreen ‘Barney’
2018 VW Caddy Maxi R Line
2017 Golf GTD saloon
2008 VW EOS 2.0 TFSi |
|
| Back to top |
|
 |
mikedjames Samba Member

Joined: July 02, 2012 Posts: 3429 Location: Hamble, Hampshire, UK
|
Posted: Sat Nov 29, 2025 1:48 am Post subject: Re: Are there any good alternator pullies? What do you use? |
|
|
In the end, I found a new EMPI branded (Polycarter of Brazil made) fan coupled with a new EMPI branded Polycarter pulley ( with some paint overspray scraped out of the alternator spindle bore) was the answer to excessive belt wear
My old fan did not look bad but was causing vibration and off balance made it snatch at the belt at idle, leading to fretting the pulley so hard at 4000rpm + that the metal softened with the heat input, and cracked. _________________ Ancient vehicles and vessels
1974 VW T2 : Devon Eurovette camper with 1641 DP T1 engine, Progressive carb, full flow oil cooler, EDIS crank timed ignition.
Engine 1: 40k miles (rocker shaft clip fell off), Engine 2: 30k miles (rebuild, dropped valve). Engine 3: a JK Preservation Parts "new" engine, aluminium case: 26k miles: new top end.
Gearbox rebuild 2021 by Bears.
1979 Westerly GK24 24 foot racer/cruiser yacht Forethought of Gosport.
1973 wooden Pacer sailing dinghy |
|
| Back to top |
|
 |
|