You will need to measure the inside diameter of the hub where the dust cap will fit. It is recommended to use a caliper or micrometer to measure as it needs to be measured in thousandths of inches.
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Ultra-Tow Ultra-Pack Trailer Bearing Dust Caps, 2-Pk.

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- Removable rubber plug provides direct access for easily repacking grease
- 2-pack of 1.98in. dia. caps
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Description
Key Specs
Reviews
Q & A
Warranty
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Product Summary
What's Included
- (2) Ultra-Tow Ultra-Pack Trailer Bearing Dust Caps
Features + Benefits
- Removable rubber plug provides direct access for easily repacking grease
- 2-pack of 1.98in. dia. caps
Key Specs
| Attribute | Specification |
|---|---|
item# | 135035 |
Brand | Ultra-Tow |
Manufacturer's Warranty | 1 month parts/1 month labor |
Ship Weight | 0.23 LB |
| Attribute | Specification |
|---|---|
Included (qty.) | 2 |
Product Type | Bearing Protector |
Material | Steel/Rubber |
Reviews
Questions & Answers
Questions
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· 10 years ago
How do you measure to find out what size to order
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UltraTowExpert11· 3 years ago
Helpful?
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Snoopy2017· 8 years ago
Use in inside micrometer. Mine were the standard 1.98 and fit perfect.
Helpful?
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444cheyenne· 9 years ago
measure the inside diameter of the hole it fits in.
Helpful?
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· 9 years ago
How do you add grease?
So, if you can pull the rubber plug/cover, do you just squirt grease in with a gun or slather it in with a putty knife? There's no grease zero involved, correct?
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UltraTowExpert11· 3 years ago
There are no grease zerks on the dust caps. You will need to remove the rubber plug and repack your bearings with a grease gun or with a putty knife.
Helpful?
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Snoopy2017· 8 years ago
When you remove the rubber cap it should reveal the zirc grease nipple installed in the end on the axel. Just use a grease gun and pump to fill the axel cavity and push the grease out through the bearings.
Helpful?
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· 2 years ago
Do these fit the hubs on your Ironton 5x8 trailer - item# 37552.
1 answer-
UltraTowExpert11· 2 years ago
The dust cap item number 135035 will not work with the trailer item number 37552. The replacement dust cap for the trailer is part number ITI37552-29. We do not carry parts for the trailer through Northern Tool. To order please contact our sister company Jacks Small Engine at the link below. https://www.jackssmallengines.com/
Helpful?
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· 5 years ago
How are the rubber plugs removed and re-installed when greasing the bearings? Thanks
1 answer-
UltraTowExpert7· 5 years ago
The rubber cap can simply just be pulled out. To reinstall, it is pushed back into the groove.
Helpful?
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Warranty
Manufacturer's Warranty
1 month parts/1 month labor
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