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Replacement Locking Ratchet Arm Assembly for Thule T2 Hitch Bike Rack or Sidearm Roof-Mount Rack
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Thule

Replacement Locking Ratchet Arm Assembly for Thule T2 Hitch Bike Rack or Sidearm Roof-Mount Rack

Part Number: 753-3579
101 Reviews | 25 Questions
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$104.89
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thule accessories and parts arms replacement locking ratchet arm assembly for t2 hitch bike rack or sidearm roof-mount
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Replaces a locking ratchet arm on your Thule T2 hitch bike rack (TH916, TH916XT, TH917, and TH917XT) or Sidearm roof-mounted bike rack (TH594 and TH594XT). Thule One Key System lock and installation hardware for upright arm assembly sold separately. 1-800-940-8924 to order Thule accessories and parts part number 753-3579 or order online at etrailer.com. Free expert support on all Thule products. Great prices and Fastest Shipping for Replacement Locking Ratchet Arm Assembly for Thule T2 Hitch Bike Rack or Sidearm Roof-Mount Rack. Accessories and Parts reviews from real customers.
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Thule Accessories and Parts - 753-3579

  • Hitch Bike Rack
  • Roof Bike Racks
  • Cradle and Arm Parts
  • Arms
  • Thule
  • Sidearm
  • T2

Replaces a locking ratchet arm on your Thule T2 hitch bike rack (TH916, TH916XT, TH917, and TH917XT) or Sidearm roof-mounted bike rack (TH594 and TH594XT). Thule One Key System lock and installation hardware for upright arm assembly sold separately.


Features:

  • Replaces 1 locking ratchet arm assembly for the Thule T2 hitch bike racks (TH916, TH916XT, TH917, and TH917XT) or Sidearm roof-mounted bike rack (TH954 and TH954XT)
  • Provides mounting point for the T2 or Sidearm ratcheting hook assembly
    • Requires Phillips screws and nylon insert locknuts (sold separately) for installation
  • Locks with Thule One Key System lock (sold separately)
  • Lock plug sold separately (853-6395)


1500056243 Replacement Locking Ratchet Arm Assembly for Thule T2 Hitch Bike Rack and Sidearm Roof Mounted Bike Rack

Replaces 753-3579





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Video of Replacement Locking Ratchet Arm Assembly for Thule T2 Hitch Bike Rack or Sidearm Roof-Mount Rack
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Thule Replacement Locking Ratchet Arm Assembly T2 Or Sidearm - 753-3579

Hi, everybody. Andy here with etrailer.com. And today, we're gonna take a brief look at this replacement locking ratchet arm assembly for the Thule T2 hitch bike rack or Sidearm roof mount rack. If you need to replace a locking ratchet arm on your Thule T2 hitch bike rack or your Sidearm roof mounted bike rack, then this is what you are going to need. Now, on your screen, I am listing our item numbers of the T2 and Sidearm bike racks that this will fit. Now, this is going to provide the mounting point for the T2 or Sidearm ratcheting hook assembly.

And this is going to require Phillips screws and nylon insert lock nuts for installation and those are sold separately. And the Thule One Key System lock and lock plug are also sold separately. And I am also including those item numbers for you on the screen if you need to pick those up as well. Well, that's gonna conclude our brief look today. I do hope that it was helpful for you.

Again, my name is Andy. Thank you for joining me..

Customer Satisfaction Score:

Ratings & Reviews

4.9

101 reviews
5 Stars
(91)
4 Stars
(5)
3 Stars
(5)
2 Stars
(0)
1 Star
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by:
I have an old Thule 916 rack that could only work for 27.5" tires. I got a new bike with 29" tires, so this arm hook was the perfect fix. I only replaced one arm for my bike, left the other originals for my kid's bikes. It took about an hour to replace the arm with the locks from the old arm. Works perfect for my new 29" bike!
by:
Was not totally sure I ordered the correct part. Parts for this rack are hard to find, including EBAY.
Alas, part was correct. Repair took five minutes.
Back in action!
Mike L. profile picture
Etrailer Expert

Mike L.

9/15/2026

Glad to hear that, Michael!

by:
If the rack was designed better we wouldn’t have had to replace it. That’s on Thule nor Etrailer.
by:
Works great. I have an older T2 rack that the 29" tires on my new mtn bike wouldn't fit. This arm easily fits them. Note that it doesn't have the wheel hook on the end, so you'll need to swap that from your old rack - and I also replaced the machine bolts that hold the hook (mine were rusted from years of use)
by:
The replacement bar worked great with no issues during the replacement. Thanks
by:
Re-iterating that this is the correct arm to upgrade your old arms (that were for max 26" wheels) to these arms which perfectly fit (with some room to spare) 29" wheels. What I might add to this review is to not be confused by the Item #... if you look at the old arm, they are the same Item # as this version. At some point, Thule replaced it with the longer arm. Not sure what year this would've been. In summary, all good by ordering this Item # to fit 29" wheels (and the wheel foam part and screws fit perfectly from the old version to this one).
by:
Everything arrived on time. The replacement arms fit my 29” mtn. bike perfectly.
by:
This is the second replacement arm I have purchased. straightforward if you’re riding a fat bike or 29 only challenge is potentially getting the old bolts out.
by:
The part fit perfectly on the rack. I wish I had paid more attention to the part. My old one had the cable lock. This one came without it. I thought you would be able to interchange them, but it’s still OK. The ratchet has a key lock so that works just fine. I am happy with my purchase.
by:
I damage a number of parts on my Thule rack crashing into my garage.
Fortunately all of the parts that were damaged were available from etrailer

The parts came quickly and in no time the rack was good as new.
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by:
Just what. Needed to update my old tack to fit 29 inch wheels
by:
Perfect fit.. works great!
by:
It's fast received and perfectly fit to my roof rack great product thanks
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by:
Fantastic replacement part, used with a replacement base rail too, be sure to purchase two new screws to mount if yours may be rusty, also may be good to source the roll pins needed if using a replacement rail for the pivot bushing, I was able to pound out the originals and replace.
by:
Gave my old rack new life because now it could handle my 29er!
by:
The replacement part arrived next day. Very easy to install. Now my 2 bike rack is like new.
by:
Easy to install and works perfect.
by:
Thank you so much for all your feed back for finding the replacement parts that fit our Sportworks bike rack.
Totally awesome care!!
Chuck & Lori Schmuck
Siuslaw profile picture

Siuslaw

10/9/2023

It’s working great!! Thank you. It fit our older Thule bike rack perfectly. We are very pleased with your service and help

Mike L. profile picture
Etrailer Expert

Mike L.

11/2/2023

@Siuslaw We're glad the # 753-3579 replacement arm assembly is working well for you!
by:
We have a classic Thule T2 bike rack that we bought way back in 2009-just before 29ers were a big thing. The old ratchet arms were too short for our new 2020 ebikes. These new replacement arms are 2” longer and work perfectly! Easy to replace. Ordering and shipping from trailer.com was so easy as well. Would recommend!
by:
That product is great.
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by:
If you've ever suffered through Thule's customer service, skip the headache and order here. It's not inexpensive, but allowed me to bring new life to an older rack instead of needlessly replacing. I do suggest ordering replacement fasteners as you go. Overall a very good experience.
by:
I bought this to replace the ratchet arm on an older Thule T2 Hitch Mount Rack to accommodate 5" snow bike and 29+ wheels. The arm is about 2" longer than the older model and makes all the difference on the fit (helps to have the wider tray for the front wheel). It measures about 27" end to center of mount versus about 25" on the older model.
by:
The replacement arms are longer than the original ones that came on my carrier. I can carry almost any bike now without having to let air out of the front tires. Works great. I plan on buying 2 more for my rack extension.
by:
The replacement locking ratchet arm assembly I recently ordered was all I hoped it would be in that every part and fastener required to install it on the trailer hitch Thule 2 bike rack fit perfectly. I was very pleased that (A) it could be accomplished and (B) the parts were still available despite this particular rack being discontinued. A fine product. Many thanks.
by:
Part is perfect. I have an original sportworks bike rack and the company sold to Thule and has been replaced by the T2. I was so happy to find the locking ratchet arm from etrailer.com which fits my rack because mine cracked and wore out. The new one is actually longer and will fit a 29r now. Im ordering another to replace the other old arm. I have upgraded for a very reasonable investment. Everything fits and works perfect. Thank you etrailer.com
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See what our Experts say about this Thule Accessories and Parts

Do you have a question about this Accessories and Part?
  • Is there a Longer Locking Arm for a T2 Bike Rack to Load Bikes with 29 Inch Tires
    Replacement Locking Ratchet Arm Assembly # 753-3579 is the same one that originally came on your T2 bike rack so it would not offer any additional length. There is a longer one, # 752-1272-001, which is 31-1/2 inches long overall which is about 2 inches longer than the original. It has been reported to fit the original T2 (916 or 917) but I cannot verify that.
    view full answer...
  • Replacement Arm For Thule 515-5190 Bike Rack
    Hey Victor, Yes, you can use the Replacement Locking Ratchet Arm Assembly # 753-3579 to replace the arm on your 515-5190. Additionally, this does have length to handle 29 inch wheels.
    view full answer...
  • Longer Replacement Arm For Thule 515-5190 Bike Rack
    Hey Jeff! You can use the Replacement Locking Ratchet Arm Assembly item # 753-3579, you were looking at, to replace the arm on your 515-5190. It does have the length to handle 29" wheels.
    view full answer...
  • Can Older Thule T2 be Adapted to Fit 29er
    The replacement arm part # 753-3579 is exactly what you need. This will convert your older Thule T2 bike rack to allow it to be used with the 29 inch wheel you have now.
    view full answer...
  • Can Older Thule T2 Bike Rack be Converted to Fit 29er Bike
    Hey Juerg, so it sounds like you have an older Thule T2 bike rack and a 29er bike which we have a solution for that with the part # 753-3579 to replace the arm with one that is longer and will allow the larger wheel to be secured. That is a cool trick that you came up with to allow a 29er to fit with the shorter arm though so thanks for taking the time to pass that on.
    view full answer...
  • Thule Bike Rack Replacement Parts for Bent Arm of Thule T2 Classic
    The two parts you mentioned would be all you'd need, part numbers # 753-3579 and # 753-3583 as they appear to be the only parts that are damaged and the rest could be swapped over as needed.
    view full answer...
    Image 1 for
  • Replacement Ratcheting Arm Assembly And Hook For A Thule T2 Bike Rack
    It sounds like you're looking for the: -Replacement Locking Ratchet Arm Assembly for Thule T2 Hitch Bike Rack or Sidearm Roof-Mount Rack # 753-3579 . This ratcheting arm assembly is a direct replacement for your Thule T2 Bike Rack, and is the part that ratchets down to your wheel to hold it in place. If you also need the hook, you can use # 753-3583.
    view full answer...
  • Difference Between 753357902 and 753-3579 Replacement Thule Ratchet Arms and Can I Lock Them
    The arm part # 753-3579 replaces the ratcheting arm on the older Thule T2 bike racks that are no longer available which are the following bike racks: TH916, TH916XT, TH917, and TH917XT. The original arms on those bike racks came with locks cylinders originally so they were considered "locking" arms. However, the replacement arms do not come with a lock cylinder like the original bike rack did so you would need to use part # TH450200 as locks or use your old lock that came in the old arms....
    view full answer...
  • Replacement Ratchet Arm Assembly for Older Thule T2 Hitch Bike Rack
    I spoke with my contact at Thule regarding the Locking Ratchet Arm Assembly # 753-3579 referenced in your question. He stated that it does not appear that the replacement part has had any recent upgrades, but it will also depend on which particular model T2 you currently have as to whether or not this will be compatible. This ratchet arm is designed for older Thule T2 hitch bike racks TH916, TH916XT, TH917 and TH917XT. I did also go out to the warehouse to take a look at this part and measured...
    view full answer...
  • Replacement Arm that Fits Thule Sidearm TH594XT
    Yes, the replacement arm part # 753-3579 that you referenced is a confirmed fit for your Sidearm bike rack 594XT.
    view full answer...
  • Replacement Ratcheting Arm for Thule T2 Bike Rack 916
    For the original T2 916 bike rack the correct replacement locking ratchet arm is actually # 753-3579 which is the same one for the Sidearm bike racks. If you also need the hook for the arm it is # 753-3583. You may also need # 853-5960 which is the Replacement RQL Arm Bearing Half.
    view full answer...
  • Solution for Thule T2 Classic with Bent Tray and Ratcheting Arm
    For the T2 Classic Thule offers the replacement locking arm part # 753-3579 and the non-locking arm part # 753357902 but they do not offer a replacement tray. That's basically the only part they don't offer on the T2 Classic part # TH9044 so you might be looking at replacing the entire rack.
    view full answer...
  • Thule Sidearm Ratcheting Arm Will Not Stay Locked
    This is the first time I have heard of this issue on the Thule Sidearm. The first thing I recommend checking is that the locks are seated all the way into the housing. Use the change key, # 853-1251 if you need it, to pull the locks out and put them back in. There also could be damage to the mechanism which could occur if someone tried to turn the lock beyond its natural positions, used excessive force, or if some crud got in there and gummed up the works. Similarly, if the arm was pushed...
    view full answer...
  • Replacement Ratcheting Arm Assembly for 594XT
    Based on the damage I can see in the picture of your Thule 594XT bike rack the correct replacement ratchet arm is the part # 753-3579.
    view full answer...
    Image 1 for
  • Replacement Locking Ratchet Arm Assembly For a Thule T2 917 Bike Rack
    The Replacement Locking Ratchet Arm Assembly # 753-3579(1500056243) is a fit for the TH916, TH916XT, TH917, and TH917XT bike racks. The Replacement Lockable Ratchet Arm Assembly # 752-1272-001(1500056285) is for the TH916XTR or TH917XTR. Since these are for different racks I cannot verify if they are cross compatible and you will need to verify exactly what rack you have to ensure the correct replacement arm. As all of the different racks these are designed to fit are designed to hold up...
    view full answer...
  • Will The Thule T2(917) Bike Rack Fit a 29" Diameter Tire?
    The Thule T2(917) bike rack should fit up to a 29" diameter tire that is 3" wide with the stock parts according to Thule. So the Replacement Locking Ratchet Arm Assembly # 753-3579 and Replacement Hook # 753-3583 are going to be the same size as your stock parts. If your tires are wider than 3" you will need to consider upgrading to the Thule T2 Pro XTR Bike Rack # TH83JV which will fit tires up to 5" wide and 29" diameter.
    view full answer...
  • Comparing Thule Replacement Ratcheting Arms 753357902 & 753-3579 for T2 Bike Racks
    Part # 753357902 is a Non-Locking Ratchet Arm Assembly that fits specific versions of the T2 Classic TH9044, TH9045 and # TH9046. Part # 753-3579 is a LOCKING Ratchet Arm Assembly for the following discontinued Thule T2 Hitch Bike Rack models TH916, TH916XT, TH917 and TH917XT.
    view full answer...
  • Replacement Arm and Fat Tire Adapter for a Thule T2 Bike Rack
    The longer arm that is offered for the original Thule T2 is the Replacement Lockable Ratchet Arm Assembly for Thule T2 Bike Racks item # 752-1272-001. It is 31-1/2 inches long overall which is about 2" longer than the original item # 753-3579. I recommend checking the part numbers and measuring the one you got for Christmas to see if this is the one you need. The Fat Tire Adapter Kit for Thule T2 Platform item # TH919 is also available but only addresses the width of the tires in the tire...
    view full answer...
  • What Is Included With Thule Replacement Locking Ratchet Arm Assembly # 753-3579
    The Replacement Locking Ratchet Arm Assembly, part # 753-3579 is the complete replacement arm minus the hook portion. The screws, part # 753-3579, and nylon insert locknut, part # 853-5973 are required for installation and are sold separately. The Replacement Lock Plug, part # 853-6395 is also sold as a separate item. Check out the attached photo that shows exactly what you receive when ordering the # 753-3579.
    view full answer...
    Image 1 for
  • Replacement Arm Assembly for Thule 591 Long Tray Classic Roof-mount Bike Rack
    I checked with my contact at Thule for availability of a replacement arm assembly for your 591 Long Tray Classic roof-mount bike rack. Unfortunately they no longer offer this part. I have linked you to our main page for roof-mount bike carriers where you can select your type of roof rack cross bars to see compatible carriers. You can also click on the filters on the page to select the type of rack and included features you prefer.
    view full answer...
  • Replacement Platform Bar and Fat Tire Adapter for Thule T2 Classic
    It sounds like you are seeking the Replacement Fat Tire Rear Wheel Holder and Strap for Thule T2 Classic Platform Bike Racks - Qty 1 # 7521568001 and Replacement Fat Tire Front Wheel Tray for Thule T2 Classic Platform Bike Racks - Qty 1 # 8523598001. It sounds like you also need the Replacement Spar and Pivot Tube Assembly for Thule T1 and Thule T2 Classic Bike Racks - Qty 1 # TH28RV along with the Replacement Locking Ratchet Arm Assembly for Thule T2 Hitch Bike Rack or Sidearm Roof-Mount...
    view full answer...
  • Does Replacement Locking Ratchet Arm Assembly 753-3579 Fit 29 inch Wheel Size
    Yes, the Thule replacement arm part # 753-3579 does work with 29 inch wheels as it's a replacement part for the Thule T2 part # TH83GC which can be used on bike wheel sizes that are between 20 and 29 inches.
    view full answer...
  • Arm Assembly Needed for Thule T2 Classic with Cable Lock
    The ratcheting arm assembly # 753-3579 that you referenced doesn't actually use a cable lock as the hook itself does the locking. You will need to add lock cylinders like part # TH450200 for this feature to work though. If you are wanting the arm assembly that uses the cable then you will want part # 752-1272-001 instead. I spoke with my contact at Thule who said that the cable isn't available separately because there are some springs inside that allow the cable to operate properly.
    view full answer...
  • Hardware to Install the Replacement Locking Ratchet Arm Assembly Part # 753-3579
    Yes, you can use your existing hardware to install the Replacement Locking Ratchet Arm Assembly part # 753-3579. However, I would go to the local hardware store and purchase a new nylon insert lock nut as they are technically a one time use only product but I am sure you would be fine using you old nut. You will also need part # 853-1251 in order to transfer the lock core over.
    view full answer...


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Info for this part was:

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