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Old 02-01-2010, 03:00 PM   #1
ritky
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Default Gates Timing Belt Kit (Pulleys) The difference

This is just an FYI for those who care. Gates pully on the left, OEM on the right. Gates actual bearing width (not the outer part that the belt rides on) is more narrow. I don't know if it make a difference but I'll be buying an OEM one soon to replace. One of the other larger pulleys had this "short width" issue also and will be replace with OEM. Also, the OEM bolt was too long for the new bearing and had to be replaced



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Old 02-01-2010, 03:16 PM   #2
tramix
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actually its the model year differences. If you check with Subaru they have both types of pulleys.
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Old 02-01-2010, 09:08 PM   #3
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Quote:
Originally Posted by tramix View Post
actually its the model year differences. If you check with Subaru they have both types of pulleys.
So withing 02-03 they changed the part # for the pulleys? Interesting.....I will have to ensure I get the correct "wide" one then.
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Old 02-05-2010, 12:47 AM   #4
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Gates is our OEM
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Old 02-05-2010, 09:36 AM   #5
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Quote:
Originally Posted by ritky View Post
So withing 02-03 they changed the part # for the pulleys? Interesting.....I will have to ensure I get the correct "wide" one then.
early 02's had the different lengths, so i'm guessing you just ended up with kit meant for that early build, and instead needed the 03+ kit. Of course, very few of the actual descriptions tell you clearly which it is.

I have an early build 02 and ended up with a kit meant for the later years. Different bolt from lowes and a washer, and it fit perfectly.
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Old 02-15-2010, 05:03 PM   #6
ritky
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Originally Posted by turb04 View Post
Gates is our OEM
Yes for the timing belt. But my new gates bearings were made in Korea while the OEM ones I took off were from Japan.
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Old 02-15-2010, 09:08 PM   #7
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Quote:
Originally Posted by ritky View Post
Yes for the timing belt. But my new gates bearings were made in Korea while the OEM ones I took off were from Japan.

irrelevant....korean made stuff is grade A

as long as it isnt cambodia or indonesia or china
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Old 03-29-2012, 12:59 AM   #8
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Any way to tell? I just bought a belt from Saga in Japan. When it arrived, it was in a box sent from Taiwan, was 29mm wide (original was 30mm) and appeared a little rougher on the cut surface. I think this so called original belt is Chinese....
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Old 03-29-2012, 01:57 AM   #9
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id sell it and get an oem belt
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Old 03-29-2012, 11:20 AM   #10
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Interesting info and pics. I've yet to do my timing belt. I have an OEM belt which is made by Gates as well as my AC, alternator and PS belts. Didn't know the pulleys had such a difference.
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Old 03-29-2012, 05:30 PM   #11
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Quote:
Originally Posted by EdHilario View Post
Interesting info and pics. I've yet to do my timing belt. I have an OEM belt which is made by Gates as well as my AC, alternator and PS belts. Didn't know the pulleys had such a difference.
if you order the correct parts the pulley difference will be irrelevant as you should get the right ones
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Old 11-07-2012, 03:22 PM   #12
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Doing some searching for my upcoming timing belt change.

Is it correct than the 03's built after 10/02 have the newer pulley (the two bearing/longer bolt)?

Same as the 04+ parts?

Any difference in the water pumps?

Thanks
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Old 11-07-2012, 08:28 PM   #13
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So in case anyone else with an 03 has this question.....

02 and 03 cars up to an 9/02 build date 'should' be the TCKWP328A kit

03 from 9/02 and later and 04's 'should' be the TCKWP328B kit

I guess I'll find out when I do my install! My car was build 11/02, so the 'B' kit is what I will order - hopefully the water pumps won't be an issue.
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Old 11-08-2012, 09:09 AM   #14
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in either case, its a better idea to order the later kit. The idler/bearing design is better, and it just takes a new (commonly found) bolt to make it work.
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Old 11-08-2012, 12:44 PM   #15
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Anyone have any issues with the water pumps from the kit? I'm debating on getting one from the dealer or not. I don't trust parts from China (having lived there last year, I trust them even less than before re: quality).
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Old 04-15-2015, 02:21 PM   #16
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Digging this up out of the archives, hope that is OK.

Doing research on timing belt kits for pending change due on my 5/01 build date wrx.

These are my findings:

TCK328 cost less than TCK328A, approx $150 vs $215.

According to gates website:

The TCK328 applications:

Baja 2004,2005,2006
Forester 2004,2005,2006,2007,2008,2009,2010,2011,2012,2013
Impreza 2003,2004,2005,2006,2007,2008,2009,2010,2011,2012, 2013,2014
Legacy 2005,2006,2007,2008,2009,2010,2011,2012
Outback 2005,2006,2007,2008,2009

TCK328A applications:

Impreza 2002,2003

Gates has confirmed that the ONLY difference between the TCK328 and TCK328A is the "driver's side upper idler" Which appears the confirm information provided in posts above.

conclusion:

to save a few bucks and have, what appears to be a new / better design for the idler pulley bearing, the TCK328 will work on the MY 02/03 with the additional purchase of a longer bolt.

I will report back after install is complete.
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Old 05-01-2015, 02:49 AM   #17
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I thought this issue was solved 3 years ago?? My timing kit came with the exact same sized pulleys that came off my car.??????????
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Old 07-28-2015, 05:36 PM   #18
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So does anyone have the actual specs on the longer bolt, so I can buy it before I open up the engine? What grade should it be, thread pitch, length, etc. etc.?
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Old 07-29-2015, 08:07 AM   #19
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I do not have the specs for the longer bolt, I just went to tractor supply and matched the longer bolt to the bolt removed. I did have to cut the longer bolt down to be the correct length.

If you have the time, the longer bolt can be purchased from dealer or on line. Google "wrx longer idler pulley bolt" and you will find more info.

I can confirm the only differences i observed in the gates part numbers is the double bearing idler pulley, all other parts appeared to be the same.
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Old 10-12-2015, 11:09 AM   #20
ritky
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Quote:
Originally Posted by ezil71 View Post
Anyone have any issues with the water pumps from the kit? I'm debating on getting one from the dealer or not. I don't trust parts from China (having lived there last year, I trust them even less than before re: quality).
I didn't have an issue with the gates water pump but I did have an issue with the gasket that came in the kit. The gates gasket is a fiber material while the OEM gasket is metal. The gates fiber gasket blew out after about 60k miles
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Old 10-12-2015, 12:10 PM   #21
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OEM water-pump gasket (metal w/crush-seal): 21114AA051

If you decide to purchase all OEM components, you can do so for around $600-$700 (all pulleys, tensioner, belt, water-pump and gasket, and the thermostat with o-ring gasket).

Never get any oil, coolant, etc on the belt and make sure your hands are clean before and during handling and installation of the new belt.
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Old 10-25-2015, 04:39 PM   #22
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I was pretty happy with the gates components except the paper gasket and the water pump. My water pump had some sort of glue leaking from the outlets and was in the pump, even after cleaning it out, didn't like the way it sounded so just put the original back on. If not for the glue(?) it looked like pretty decent craftsmanship
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