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Trailer Idler Hub Assembly for 2,500-lb Axles - 5 on 4-1/2 - Qty 2

Trailer Idler Hub Assembly for 2,500-lb Axles - 5 on 4-1/2 - Qty 2

Item # TA88545-2
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Trailer Hubs and Drums TA88545-2 - L44649 - Timbren
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Hubs are designed for use on trailer idler axles. Fits 2,500-lb axles. Inner bearings and races, outer bearings and race, grease seals, grease caps, and lug nuts included. Lowest Prices for the best trailer hubs and drums from Timbren. Trailer Idler Hub Assembly for 2,500-lb Axles - 5 on 4-1/2 - Qty 2 part number TA88545-2 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (7)
  • Q & A (9)
  • Videos (1)
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  • Used (1)
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Timbren Trailer Hubs and Drums - TA88545-2

  • 5 on 4-1/2 Inch
  • For 2500 lbs Axles
  • Hub
  • Standard
  • 8 Inch Wheel
  • 10 Inch Wheel
  • 12 Inch Wheel
  • Timbren
  • 1/2 Inch Stud
  • L44649
  • L44649

Hubs are designed for use on trailer idler axles. Fits 2,500-lb axles. Inner bearings and races, outer bearings and race, grease seals, grease caps, and lug nuts included.


  • Trailer hub assembly fits idler axles
    • Bearings, races, seal, grease cap, and lug nuts are included
  • Sturdy steel construction


  • Application: 2,500-lb trailer axles
  • Bolt size: 5 on 4-1/2"
  • Wheel stud diameter: 1/2"
  • Weight capacity: 1,250 lbs per hub

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner/outer bearing: L44649
  • Races (included)
    • Inner/outer race: L44610
  • Grease seal (included): 10-60
    • Inner diameter: 1.50"
    • Outer diameter: 1.987"

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: 8 on 6-1/2 means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: 5 on 4-1/2 means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Bolt Pattern - Side

Measuring the distance (D) from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

88545-2 Trailer Idler Hub Assembly for 2,500-lb Axles - 5 on 4-1/2 - Qty 2

Video of Trailer Idler Hub Assembly for 2,500-lb Axles - 5 on 4-1/2 - Qty 2

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Timbren Trailer Hubs and Drums - Hub - TA88545-2 Review

Today we're going to take a look at the trailer idler hub assembly for 2,500 pound axles, has the 5 on 4 and 1/2 inch bolt pattern, and this for a quantity of 2. Now these trailer hub assemblies are designed to fit idler axles, comes with everything that's shown here, comes with the idler hubs, the inner and outer bearings, the bearing races, which are pre-installed, the greased seals, the EZ Lube grease caps, and the lug nuts are all included. Now these hubs are sturdy steel construction. The specs on this, they're designed to fit 2 2,500 pound trailer axles. The bolt pattern on them is 5 on 4 and 1/2 inches. Wheel stud size is 1/2 inch, and the weight capacity is 1,250 pounds per hub, so when one of these is used on each side of your axle, it'll meet the 2,500 pound axle capacity.

Comes with everything shown here. Each hub will come with both an inner and outer bearing, a double-lip greased seal, an EZ Lube grease cap, and the lug nuts. I just want to go through the part numbers that are used on these. The inner and outer bearings, they use the same part number. It's L44649. The double-lip grease seals, they use is 10-60.

The EZ Lube grease cap is part number DC200L-ECRP. When I say EZ Lube cap, what that means is that center rubber plug, you just pop that out, and that gives you access on an EZ Lube axle. It'll have the grease zerk 00:01:21 fitting on the end of the axle, so this will give you access to be able to grease your hubs without having to remove the whole assembly. Then it comes with a total of 10 lug nuts, 5 for each one. The lug nuts are size 1/2 inch by 20.

That should do it for the review on the trailer idler hub assemblies for 2,500 pound axles with the 5 on 4 and 1/2 inch bolt pattern. This is for a quantity of 2.

Customer Reviews

Trailer Idler Hub Assembly for 2,500-lb Axles - 5 on 4-1/2 - Qty 2 - TA88545-2

Average Customer Rating:  4.7 out of 5 stars   (7 Customer Reviews)

Hubs are designed for use on trailer idler axles. Fits 2,500-lb axles. Inner bearings and races, outer bearings and race, grease seals, grease caps, and lug nuts included.

- TA88545-2

The product is great, price is outstanding. The only problem we have is you won’t ship to Alaska. That’s right I live in Alaska, so every time I need your product, I have to have it shipped to a relitive and have them mail it to me. Will never understand why you guys have to charge an arm and leg to get your product up here. We are the United States really we are. That’s some to work on “Shiping to Alaska” cheep!!! 585693

- TA88545-2

I purchased this idler hub assembly to replace the 27 year old hardware on my 1991 Coleman Fleetwood Sun Valley. I’ve never dealt with these types of products so I turned to etrailer since they literally have all the answers. After disassembling my hub I located my inner and outer bearings and called Greg at etrailer with the bearing numbers. He verified this was the right setup for me and that it would fit with my axle. The price was amazing for all of these items, especially when comparing to some of the $60 local quotes I got for bearings alone. I ordered this set and paid $18/19 shipping. I should have ordered a second set of grease seals for next time but I forgot. Anyways, the shipping (UPS) was delayed which was upsetting. When I got the package I was a little disappointed that it was basically just a bunch of parts tossed in a box. The bearings were 4 bearings in a sandwich bag, and all the other hardware was in a separate bag which somehow was torn and parts were scattered in the box. I guess when you buy this “set” someone from the warehouse just gathers the parts and puts them in a box? Also, there was no cotter pin or castle nut washer. I guess I assumed it would come with those but when I re-looked it up they’re not included. So I guess I should have ordered those at the same time, too. After a trip to the hardware store I cleaned everything up, packed my bearings and assembled the hubs onto my spindles. Everything went perfectly well and they fit and work great. I think there’s some room for packaging improvement but in the end it’s still a 5-star review. 479616

Perfectly! No problems and everything works like new.
Brian C - 02/27/2019


- TA88545-2

Fast shipping, excellent pricing and quality. Order cake shipped perfectly in a container that prevented any damage. I ordered tires and rims as well. The tires were installed on the rim and filled with air. Highly recommended. 456314

- TA88545-2

Great Price, perfect fit and delivery was fast. Perfect! 373759

- TA88545-2

Product looks ok, fit perfect , the grease cap came in crushed ,but I did not use it anyway. Time will tell how the bearings hold up. 368850

- TA88545-2

Product exactly as stated and in new condition as expected. Install was a breeze. Shipping was slower than expected. Would buy again. 322521

- TA88545-2

I ordered on Monday, it was there Tuesday afternoon, back on the road Wednesday. 310804

after a year everything is rolling along as it should !!
jim r - 10/26/2017


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Condition: Missing Parts

Notes: Item is missing all of the hardware. Otherwise new and unused.

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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Installed by:
Jeff D
Updated by:
Amanda M

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