Stemco Pro-Torq Axle Nut GP Trailer Axle
Stemco Pro-Torq Axle Nut GP Trailer Axle
$110.00
Stemco Pro-Torq axle nut for GP trailer axle wheel ends, with 95mm A/F, 65mm I.D, 26mm thickness and 2 5/8″-16 thread for matching spindle and bearing service.
Part number 447-4743.
Description
Overview
Stemco Pro-Torq axle nut secures the trailer wheel end and controls bearing adjustment on GP trailer axle applications. It replaces the common inner nut, lock washer and outer nut arrangement with a single heavy lock nut setup.
Features
- Suits GP trailer axle wheel ends with matching spindle and bearing setup.
- Single-nut Pro-Torq design helps control wheel bearing adjustment.
- 95mm A/F size matches the 3 3/4″ 8 point socket requirement.
- Uses AP4122 as the replacement keeper when the keeper is serviced.
Specifications and Materials
This Stemco Pro-Torq axle nut suits 17,000-22,500lb trailer axle wheel-end applications where the spindle, thread and bearing set match.
Part number: 447-4743.
A/F: 95mm. I.D: 65mm. Thickness: 26mm. Thread size: 2 5/8″-16. Tool socket: 3 3/4″ 8 point. Outer bearing cone and cup: HM212049 / HM212011.
Use the Garlock Pro-Torq axle fastener resource for Stemco Pro-Torq product and service information
Compatibility and Fitment
Match the spindle thread, axle rating, bearing cone and cup, socket size and keeper style before ordering. Also confirm the existing nut system, because this heavy lock nut replaces the common three-piece axle nut and washer arrangement.
These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. AP4126, MER614743, 614743, 447.4743, 4474743
Related Parts
Check the related service parts below against the trailer setup before ordering.
| Use | Part number | Part type |
|---|---|---|
| Replacement keeper | AP4122 | Pro-Torq keeper |
| Replaced component | AP4006 | Outer common axle nut |
| Replaced component | AP4007 | Common axle lock washer |
| Replaced component | AP4008 | Inner common axle nut |
| Related kit | AP4006K | Common axle nut kit |
Compliance and Safety
Inspect the spindle, bearing set, keeper groove and keyway before fitting. Replace the keeper when the nut assembly comes off for service, then follow the wheel-end adjustment procedure for the hub and axle system.
Trailer Applications
Workshops fit the Stemco Pro-Torq axle nut during trailer wheel-end service on Meritor, Dana, Eaton, Standard Forge and Ingersoll GP trailer axle applications. It suits repairs where the buyer needs the heavy Pro-Torq lock nut rather than the common inner nut, washer and outer nut setup.
Cross-reference and Suitability
This part cross-references to or suits the following equivalent part numbers and compatible alternatives:
| AP4126 | MER614743 | 614743 |
| 447.4743 | 4474743 |
Why Choose ICS Trailers
ICS Trailers supplies axle nuts, wheel-end parts and trailer axle service components for heavy trailer repairs where spindle, bearing and keeper details need to match. Browse more Axle Parts from ICS Trailers.
Online prices apply to website orders only. In-store pricing may differ.






