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Gates 38163 DriveAlign Automatic Belt Drive Tensioner

Brand: Gates

4.7 297 ratings

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$33.38 with 32 percent savings

List Price: $48.77

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Purchase options and add-ons

Brand	Gates
Color	Multi
Style	Modern
Item Weight	1.2 Pounds
Manufacturer	Gates

About this item

Comprehensive line includes parts to fit cars, vans, SUVs and light trucks, domestic and import (European and Asian)
Manufactured using the same or improved technology and quality materials as the Original Equipment Manufacturer (OEM) part, assuring a factory match
Patented labyrinth seal protects internal components to meet or exceed OE life expectancy requirements
Patented vibration-damping system absorbs extreme vibration to improve tensioner, as well as belt and accessory, life
Torsional round spring design provides reliability as well as consistent tension

› See more product details

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WARNING: California’s Proposition 65

Product Description

Gates is a global leader in Original Equipment system design and brings the same OE-quality, durability, fit and performance to our premium DriveAlign Automatic Belt Tensioners. We ensure every tensioner is manufactured to rigid tolerances and specifications that guarantee OE fit, form and function.

Product information

Technical Details

Manufacturer

‎Gates

Brand

‎Gates

Model

‎DriveAlign Automatic Belt Drive Tensioner

Item Weight

‎1.2 pounds

Country of Origin

‎China

Item model number

‎38163

Exterior

‎Machined

Manufacturer Part Number

‎38163

OEM Part Number

‎04854089A, 4854089AB

Additional Information

ASIN

B000C2YAJI

Customer Reviews

4.7 297 ratings

4.7 out of 5 stars

Best Sellers Rank

#49,086 in Automotive (See Top 100 in Automotive)
#23 in Automotive Replacement Belt Tensioners

Date First Available

November 9, 2005

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

Product Warranty: For warranty information about this product, please click here [PDF ]

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DriveAlign Automatic Belt Drive Tensioner

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Customer reviews

4.7 out of 5

297 global ratings

How customer reviews and ratings work

Customers say

Customers like the performance, fit, quality and value of the hardware clamp vise. For example, they mention it works well, fits perfectly and is of good quality. Some appreciate the ease of installation. That said, they say it's a great buy and a good value.

AI-generated from the text of customer reviews

18 customers mention18 positive0 negative

Customers are satisfied with the performance of the hardware clamp vise. They mention that it works well, has no issues, and is of good quality. Some say that the unit itself is great, but be careful when removing the old tensioner.

"Works great,should be in package deal" Read more

"Concerning the actual Gates tensioner, it is a great part and works great...." Read more

"...The unit itself is great so far, but BE CAREFUL removing the old tensioner...." Read more

"Installed perfectly, has 5k miles on it and no issues." Read more

17 customers mention17 positive0 negative

Customers are satisfied with the fit of the hardware clamp vise. They mention that it fits perfectly, installs in seconds, and the alignment studs fit perfectly.

"...Perhaps not a problem, as the alignment studs fit perfectly, which should mitigate any vibration...." Read more

"Replaced while installing new alternator. Perfect fit on 2003 Jeep Wrangler. Appears to be good quality. No problems in first 2 months." Read more

"Used it on my 2004 Grand Cherokee, and it fit perfectly." Read more

"Came on time like said, fits great" Read more

13 customers mention13 positive0 negative

Customers are satisfied with the quality of the hardware clamp vise. They mention that it is well-built, and works well. Some say that the installation was easy.

"Concerning the actual Gates tensioner, it is a great part and works great...." Read more

"Quick easy install seems to be good quality" Read more

"...Works well. Nice and quiet." Read more

"...Perfect fit on 2003 Jeep Wrangler. Appears to be good quality. No problems in first 2 months." Read more

7 customers mention7 positive0 negative

Customers appreciate the value of the hardware clamp vise. They say it's a great buy.

"...An assorted size pack of O-rings is common and inexpensive...." Read more

"...Will it last? Who knows. It was fairly low cost, but like everything else these days, considerably more expensive that last purchase...." Read more

"Great price" Read more

"nice product good value" Read more

4 customers mention4 positive0 negative

Customers find the installation of the hardware clamp vise pretty easy. They say it installs perfectly.

"Installed perfectly, has 5k miles on it and no issues." Read more

"...Install was simple on my old 6 cylinder Jeep." Read more

"Quick easy install seems to be good quality" Read more

"...Great part and the installation was pretty easy." Read more

3 customers mention3 positive0 negative

Customers find the hardware clamp vise easy to replace. They mention it's a great replacement part.

"...Perfect identical replacement made in Canada same as OEM. Easy replacement." Read more

"the unit fit fine. It was an easy replacement while I had things apart for our last upgrade on our TJ." Read more

"Great replacement part!..." Read more

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Top reviews from the United States

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Damon Partin

Prefect fit LS swap

Reviewed in the United States on August 26, 2023

Verified Purchase

Works great,should be in package deal

One person found this helpful

Helpful

Tenshi X

Great replacement for Jeep Wrangler 4.0L. Here is my install experience.

Reviewed in the United States on November 17, 2014

Verified Purchase

I drive a 2006 Jeep Wrangler with 4.0L engine. I have reached 85,000 miles and had already replaced the serpentine belt. I have read that it is also recommended I replace the idler pulley and automatic belt tensioner.

The Gates 38163 is almost completely identical to the original OEM Chrysler/Mopar part.

Here is my experience installing it.

Things you'll need:

* 1/2in drive breaker bar
* 3/8in. drive ratchet wrench
* 3/8in. drive Torx T40 bit
* (optional) new small rubber grommet
* (optional) thread locking compound

First, it is a good idea to take a picture of your serpentine belt and how it winds around your engine and pulleys.. There is supposed to be a belt routing diagram on your radiator, but often this label is often damaged. A picture is worth a thousand words.

Depending on your tools, it may be easier to remove the fan shroud and clutch fan so they won't get in the way. I won't cover this here.

Insert the square part of your breaker bar tool into the square hole in the middle of the tensioner arm. You turn the breaker bar to tighten the arm spring and remove tension from the belt. While holding your breaker bar, carefully remove the belt from one of the pulleys - then carefully relax the arm. Remove your breaker bar. The tensioner arm (and serpentine belt) is now ready for removal.

Attach a high quality Torx T40 bit to your ratchet and carefully remove the bolt securing your old tensioner arm to your engine. Take care not to strip the head as you loosen the bolt! You will reuse this bolt on your new belt tensioner.

Once you've released your old tensioner arm, do not remove the bolt from tensioner arm yet. Carefully examine the threaded side on your bolt - there is supposed to be a small rubber grommet (or "O-ring") on the threaded side hugging the bolt. Many guides online do not mention this rubber ring! I am not entirely sure what the purpose of this rubber ring is, but I suspect it is used to dampen the vibration between the tensioner arm and engine and/or to help keep the bolt in place. If this small rubber grommet is missing or damaged, you could use a small O-ring seal normally used in plumbing like kitchen and bathroom sinks. An assorted size pack of O-rings is common and inexpensive. If you still have the original rubber grommet in good condition, carefully separate the rubber grommet from the bolt. Once separated, you may now remove the bolt from the tensioner arm.

After removal, while examining my original belt tensioner I was able to spin the pulley very freely with my hand - this means that the bearings no longer had sufficient grease to lubricate them. With the brand new pulley, the pulley turns easily as I use my hand, but I could not spin it. This means my new Gates belt tensioner's bearings are well greased for the job.

Reinstall bolt into your new Gates tensioner arm. Lightly lubricate the small rubber ring and carefully slide as far as you can into threaded end of bolt. If you want, you may now apply thread locking compound at this point (I didn't feel it was necessary). Attach new Gates tensioner arm to your engine, hand tighten Torx bolt, then use ratchet to finish tightening it. You do not need to use a lot of force to tighten it, just tighten to reasonable amount. I found some sites with a torque specification but I found this to be much tighter than original, so I didn't trust this - I recommend to just tighten to reasonable amount you can do with your single arm alone with ratchet. Don't put your weight on it! You never want a broken bolt stuck in your engine! Also careful not to strip the Torx head!

Once your new Gates tensioner arm is bolted back on, reinsert the breaker bar and wrap the serpentine belt back onto all the pulleys. You remembered to take a picture, right? Refer to your photo or belt routing diagram on your radiator. One hint is that the grooved side of the belt will only ride on grooved pulleys and conversely the smooth side of the belt will only ride along smooth pulleys. Release the arm, remove your breaker bar, examine everything - and you should be done.

In case you stripped your T40 bolt or need a new belt routing diagram sticker, below are the parts you can get from your dealer:

6507743AA - belt tensioner T40 bolt
53031700AB - belt routing diagram sticker for 4.0L

It's much easier than I made it sound. But do the job right! I hope this review helps others! :-)

40 people found this helpful

Helpful

hollandbr2

Great Tensioner but Received Wrong Part

Reviewed in the United States on February 5, 2021

Verified Purchase

Concerning the actual Gates tensioner, it is a great part and works great. However, I had to pick it up at my local parts store after returning what I received here from Amazon. I received from Amazon a completely different part number, not even close to what I ordered or that is listed here.

Helpful

Recovering Jeep Owner

Works on a Jeep TJ Wrangler

Reviewed in the United States on September 12, 2022

Verified Purchase

I installed this to replace the aging tensioner on my 2005 Jeep TJ Wrangler. The unit itself is great so far, but BE CAREFUL removing the old tensioner. I didn't know this, but the dowels can break off inside the holes of the generator mount if they are corroded. Use EVEN pressure when prying/removing the old tensioner. If you're unlucky like me and have a dowel break off/get stuck inside a dowel hole, try to grab the remains of the dowel with a set of vise grips. If that doesn't work, you can remove the generator and the generator mount from the engine block, drill a small hole on the other side of the "blind" dowel hole, and use a punch to tap out the remains of the dowel.

This is an extended description for what may be a specific problem, but I am sure it will help those of us trying to keep our TJs on the road.

Eat. Sleep. Jeep.

3 people found this helpful

Helpful

McKenzie Jones

perfect fit

Reviewed in the United States on November 26, 2022

Verified Purchase

Installed perfectly, has 5k miles on it and no issues.

One person found this helpful

Helpful

Helium Head

It's built exactly like the other aftermarket from a three years ago that it replaced.

Reviewed in the United States on August 25, 2022

Verified Purchase

Looks the same and functions perfectly. Will it last? Who knows. It was fairly low cost, but like everything else these days, considerably more expensive that last purchase. Install was simple on my old 6 cylinder Jeep.

One person found this helpful

Helpful

david gruber

Great value works as it should

Reviewed in the United States on January 19, 2023

Verified Purchase

Quick easy install seems to be good quality

One person found this helpful

Helpful

Sway Johnson

Belt size will change based on the size of power steering wheel

Reviewed in the United States on February 19, 2023