Best Trailer Assemblies in 2026
Daisy
Last Updated: Jul 17, 2026
Daisy
Last Updated: Jul 17, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| GREPSPUD Hardware | 8.63 | ✅ | ✅ | ✅ |
【WITH EXTRA 2 DUST CAPS & 4 SEALS】- You will receive 2 sets of 5x4.5'' trailer hubs(for 3,500 lbs axle) and all the hardware parts you will need, you don't have to go anywhere else to buy parts. Our kit also comes with extra 2pcs dust caps & 4pcs rubber plugs, can be used as spare parts in case of emergency. This is a value-for-money set!
【HEAVY DUTY & ANTI-RUST】- These hardware are made of high quality steel and rubber, strong and durable. Wheel hub surface with black coating, and dust cap surface zinc-plated, anti-corrosion & anti-rust, long-term service for your trailer.
【BOLT PATTERN】- 5 on 4.5'' bolt pattern idler hub with 1/2”-20 studs and bearing races installed.
【SIZE & COMPATIBLE WITH】- Trailer axle dust cap (O.D: 1.98''), L44649 outer bearings (I.D: 1-1/16''), L68149 inner bearings (I.D: 1-3/8''), Grease seals (2.56" O.D - 1.72" I.D), Lug nuts (1/2''-20 thread). Please check the size information and compatibility carefully before placing an order. Fits most standard 3500 pounds trailer axles.
【STURDY PACKAGING】- The trailer hubs are wrapped with a bubble bag. Other installation hardware are wrapped in white bubble bags. All parts are neatly placed in a sturdy cardboard box. The products are protected as much as possible during transportation to prevent deformation and wear.
【SATISFACTION GUARANTEE】- For whatever reason, if you are not satisfied, you can contact us for replacement or full refund. Please rest assured purchase.
【NOTE】- In order to install firmly, the axle dust cap is slightly larger by design. You need to knock it into place using a wood block and hammer or rubber mallet, to prevent denting the cap while installing.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Rigid Hitch Inc. | 9.84 | ✅ | ✅ | ✅ |
Complete assembly with bearings, seal, dust cap, cotter pin and lug nuts
Fits both 1" and 1-1/16" diameter straight spindles
Hub measures 4-1/4 inches tall (through center of hub)
2,000 lbs capacity - 1/2-20 thread - 5 bolt on 4-1/2 inch bolt circle
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Southwest Wheel | 9.75 | ❌ | ❌ | ❌ |
2-Pack 4 studs 4" bolt circle using TruRyde L44643 inner and outer bearings.
Contains TruRyde inner bearing, outer bearing, seal, solid grease cap and lug nuts.
Fits a BT8 Spindle (1" OD)
TruRyde Hubs are pre-raced & all studs are 1/2"-20 with yellow finished zinc plating.
TruRyde parts are manufactured to automotive standard in ISO/TS-16949 registered factory.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MAT Miller Auto Technology LLC | 9.48 | ✅ | ✅ | ✅ |
TRAILER HUB KIT - M-Parts Set of 2 Trailer Idler Hub Kits 5 on 4.5” for 3,500 lbs Axle
BOLT PATTERN - 5 on 4.5” bolt pattern idler hub with 1/2”-20 studs and bearing races installed
HARDWARE - L-68149 inner bearing- (1-3/8" inside dimension) / L-44649 outer bearing- (1-1/16" inside dimension), Grease seal - (2.56" O.D - 1.72" I.D)/ EZ Lube Dust cap - (1.98" outside dimension), 10 Lug nuts (1/2”-20)/ Cotter Pin
INCLUDED - Two sets of 5 on 4.5 Idler Hub and Hardware
M-PARTS AUTO- M-Parts Auto specializes in trailer parts & accessories using the highest quality materials
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MAT Miller Auto Technology LLC | 9.47 | ✅ | ✅ | ✅ |
TRAILER HUB KIT - M-Parts Trailer Idler Hub Kits 5 on 4.5' for 3,500 lbs Axle
BOLT PATTERN - 5 on 4.5' bolt pattern idler hub with 1/2'-20 studs and bearing races installed
HARDWARE - L-68149 inner bearing- (1-3/8 inch inside dimension) / L-44649 outer bearing- (1-1/16 inch inside dimension), Grease seal - (2.56 inch O.D - 1.72 inch I.D)/ EZ Lube Dust cap - (1.98 inch outside dimension), Lug nuts (1/2'-20)/ Cotter Pin
INCLUDED - 5 on 4.5 Idler Hub and Hardware
M-PARTS AUTO- M-Parts Auto specializes in trailer parts & accessories using the highest quality materials
Part number: 88-545KIT1
Fit type: Universal
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Southwest Wheel | 9.76 | ❌ | ❌ | ❌ |
1 1/4" Diameter, 3 3/8" long shaft, BT8 1" spindle.
Spindle includes spindle nut, spindle washer, and cotter pin.
5-4.5" BT8 hub pre raced and studded.
Hub includes inner and outer bearing L44643, seal, grease cap, and lug nuts.
Rated at 1000 lbs. per spindle, two will hold 2,000 lbs.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| JDMSPEED Auto Parts | 9.80 | ❌ | ❌ | ❌ |
Set of 2 New trailer idler hub kits 5 on 4.5 for 2,000 lbs trailer axle, for 1-1/16" straight spindle
Kits also include: 4x L44649 outer cone bearings, 2x Grease seals 1-1/16", 2x E Z lube grease caps with rubber plug; 10 cone wheel nuts 1/2"-20 thread
Bolt pattern: 5 on 4.5", bearing races and 1/2"-20 studs installed
Note: This hub fit straight spindles, not for tapered spindles
Easy Lube; Replacement For Most 2,000 lb Hubs
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Libra Trailer Parts | 9.81 | ❌ | ❌ | ❌ |
One new LIBRA trailer idler hub kit 5 on 5" for 3,500 lbs trailer axle
Bolt pattern: 5 on 5", bearing races and 1/2"-20 studs installed
Kit also includ: 1x L68149 inner cone bearing and 1x L44649 outer cone bearing, 1x Grease seal 1.719" x 2.565", 1x E Z lube grease cap with rubber plug; 5 cone wheel nuts 1/2"-20 thread
Libra Trailer Parts has been supplying US trailer manufacturers OEM parts 16 years.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| M-Parts | 2 |
| Southwest Wheel | 2 |
| Grepspud | 1 |
| Jdmspeed | 1 |
| Libra | 1 |
| Rigid Hitch Incorporated | 1 |
We've carried out a comprehensive analysis of 548 reviews on trailer assemblies, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select trailer assemblies priced around $66.59, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 8 trailer assemblies for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
We are dedicated to assisting our users in finding the right spindles Products based on their needs, saving them considerable time when choosing which trailer assemblies to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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