Guardian HP Trailer Hub Seal SET414/SET413

Allan Davis on 11/08/2026

Guardian HP trailer hub seal SET414 SET413

Guardian HP Trailer Hub Seal SET414/SET413

$62.00

Guardian HP trailer hub seal for tapered trailer axles using HM218210/HM218248 SET414 inner bearings and HM212011/HM212049 SET413 outer bearings in the matching wheel-end arrangement. Check the 6in hub bore and 4.625in spindle shoulder before fitting.

Part number 307-0743.

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Description

Overview

The Guardian HP trailer hub seal suits tapered trailer wheel ends using HM218210/HM218248 SET414 inner bearings with HM212011/HM212049 SET413 outer bearings. Because it installs directly onto the spindle, the bearing combination, 6in hub bore and 4.625in spindle shoulder are the key ordering checks.

Features

  • Guardian HP seal for oil or grease lubricated trailer wheel ends.
  • Matches SET414 inner and SET413 outer bearing arrangements.
  • HNBR-PTFE sealing lip with contamination exclusion design.
  • Installs on the axle with the matching STEMCO installation system.

Specifications and Materials

Application: tapered spindle trailer axle. Nominal hub bore: 6in. Spindle shoulder diameter: 4.625in. Seal width: 0.584in. Bearing arrangement: SET414 inner and SET413 outer.

Part number: 307-0743.

See the official STEMCO Guardian HP installation guide

Compatibility and Fitment

Compare both bearing sets before fitting because similar trailer hubs can use different seal sizes. These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. 370025A, 380025A, 46300, 46305, 372-7097, 3727097

Related Parts

Check the related service parts below against the trailer setup before ordering.

Use Part number Part type
Inner bearing set AP0610KT SET414 HM218248/HM218210 bearing set
Outer bearing set AP0608KT SET413 HM212049/HM212011 bearing set
Hub cap gasket AP4045 5.5in 6-hole hub cap gasket

 

Compliance and Safety

Remove burrs and contamination from the spindle and hub before assembly. Then fit the seal onto the spindle with the correct installation tool and lubricate the seal outer diameter before bringing the hub onto the axle.

Trailer Applications

The Guardian HP trailer hub seal suits matching TN, HN and other tapered-spindle trailer wheel ends using the SET414/SET413 bearing combination.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

370025A 380025A 46300
46305 372-7097 3727097

 

Why Choose ICS Trailers

The bearing combination is the strongest identification check for this seal. If the old seal number is unreadable, send through the inner and outer bearing numbers plus the spindle or hub measurements so ICS Trailers can help narrow down the correct wheel-end match before ordering.

  • SET414 and SET413 references make the surrounding bearing arrangement easier to identify during the same repair.
  • Cross-reference numbers can also be compared when an older seal uses different markings.

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Online prices apply to website orders only. In-store pricing may differ.

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