The hub parts kit item number 785449 will include an inner and outer bearing, cotter pin, dust cap, dust cap tool, grease zerk, dust cap plug, and (2) oil seals. To order the kit, please contact our sister company Jack's Small Engine at 877-737-2787.
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Ultra-Tow XTP Ultra-Pack Trailer Hub, 6 on 5-1/2in., 2750-Lb. Capacity

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Shipping:
Available now
$19.99 Same DayStore Pickup:
3 in stock at Fredericksburg VA - Pickup in under 1 hr
- 6 on 5-1/2in. bolt pattern with 2,750-lb. capacity per hub
- Ultra-Pack greasing system allows full bearing repack without disassembly
- Grease flows through inner and outer bearings to purge old grease
- Triple-lip spring-loaded seal helps protect bearings from moisture and corrosion
- Electroplated finish resists rust in marine and utility trailer use
See full description
Description
Key Specs
Reviews
Q & A
Warranty
Compare
Product Summary
What's Included
- (1) Ultra-Tow XTP Ultra-Pack Trailer Hub (1) Seal (1) Grease cap with zerk (6) Lug nuts (1) Dust cap installation tool

Features + Benefits
- 6 on 5-1/2in. bolt pattern with 2,750-lb. capacity per hub
- Ultra-Pack greasing system allows full bearing repack without disassembly
- Grease flows through inner and outer bearings to purge old grease
- Triple-lip spring-loaded seal helps protect bearings from moisture and corrosion
- Electroplated finish resists rust in marine and utility trailer use
- High-quality cast iron hub for strength and durability
- Includes hub with bearings, seal, grease cap with zerk, lug nuts and dust cap installation tool
- Works with existing compatible spindle
Key Specs
| Attribute | Specification |
|---|---|
item# | 572071 |
Brand | Ultra-Tow |
Manufacturer's Warranty | 2 year limited warranty |
Ship Weight | 13.98 LB |
Studs (qty.) | 6 |
Bolt Circle Pattern | 5.5 in |
| Attribute | Specification |
|---|---|
Weight Capacity Each | 2,750 lb |
Seal Size ID | 1.75 in |
Bearing Size ID | 1-3/4 in |
Bearing Size OD | 1-1/4 in |
Spindle Size | 2.25 in |
Reviews
Questions & Answers
Questions
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· 12 years ago
What are the replacement bearing/race numbers for this hub. Thanks
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UltraTowExpert11· 3 years ago
Helpful?
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UltraTowExpert12· 4 years ago
The replacement parts kit for this hub is part #785449. This kit includes one each of the following: inner bearing, outer bearing, dust cap tool, grease zerk, cotter pin, dust cap plug, dust cap, and oil seal. To order parts, please call 1.800.657.0516.
Helpful?
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· 10 months ago
What size of nut?
1 answer-
UltraTowExpert12· 10 months ago
These hubs include 1/2"-20 lug nuts.
Helpful?
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· 2 years ago
Will a disk break slip over this hub?
1 answer-
UltraTowExpert12· 2 years ago
A disc brake would work with this hub. It is a 7" diameter hub with a 6 on 5.5" lug pattern.
Helpful?
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· 3 years ago
What is the second oil seal for, is it for use during initial installation or to have for future maintenance?
1 answer-
UltraTowExpert7· 3 years ago
The seal that 2.13" is installed. The second seal is 2.25". That is included in case your application requires the larger seal.
Helpful?
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· 4 years ago
What size bearing buddy cap fits thus hub?
1 answer-
UltraTowExpert12· 4 years ago
This has a 2.441" hub bore. At this time, Northern Tool does not offer a Bearing Buddy that will fit this hub. Bearing Buddy model 2441 or 2441SS would be a suitable option.
Helpful?
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· 5 years ago
I want to mount this to Dexter axles on my 1991 Hitchhiker 5th wheel. The bearing sizes seem okay (1 1/4 and 1 3/4. My bolt pattern is 6 by 5.5 and the 2750 capacity is fine (my Dexter axle is 5200 lbs. My seals, however, have 2.085 I.D. Will this work
1 answer-
UltraTowExpert29· 5 years ago
This hub will work with your axle as the bearing sizes match. The seal size is specific to the hub not the axle.
Helpful?
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· 6 years ago
need the spindles part number for this hub assy
1 answer-
UltraTowExpert38· 6 years ago
This hub is compatible with our spindle item number 12199.
Helpful?
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· 8 years ago
compatible with 48195
Will this hub work with the axle PN 48195?
1 answer-
UltraTowExpert11· 3 years ago
The hub does have the same seal size (2.25"), inner bearing size (1.75") and outer bearing size (1.25") as the axle, item 48195. The hub does not meet the maximum weight capacity of the axle.
Helpful?
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· 9 years ago
What is the outside diameter of the base of the bearing housing that a disc brake would mount around and onto the studs?
1 answer-
UltraTowExpert6· 9 years ago
The hub diameter is 7".
Helpful?
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· 9 years ago
What wheel fits this hub?
I just need to know what wheel fits this hub for the bolt spacing etc.
1 answer-
UltraTowExpert11· 3 years ago
The hub will work with a wheel that has a 6 hole 5.5" bolt circle. The 15" modular wheel item number 121281 will work with this hub.
Helpful?
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Warranty
Manufacturer's Warranty
2 year limited warranty
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Specifications
6
5
4
5
5.5 in
4.5 in
4 in
4.5 in
2,750 lb
1,350 lb
1,350 lb
1,250 lb
1.75 in
1.25 in
1.25 in
1.25 in
1-3/4 in
1-1/16 in
1-1/16 in
1 in
1-1/4 in
1-1/16 in
1-1/16 in
1 in
2.25 in
1.5 in
1.5 in
1.25 in
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1.5 in
1.5 in
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