The Automann 12128 is a high-quality, Fleet Standard lock nut designed for Dana/Spicer heavy-duty applications. Engineered to meet rigid industry specifications, this 42mm-1.5 thread lock nut ensures a secure, reliable fit for critical drivetrain and axle components, preventing loosening caused by vibration and heavy operational loads.
This component is also included as part of the 756.6226K service kit.
Thread Size: 42mm-1.5
Application: Dana/Spicer axles/drivetrains
Product Level: Fleet Standard (Durable, cost-effective OEM quality replacement)
Unit Size: 1 piece
Weight: 0.55 lbs
Package Dimensions: 7.8" x 7.8" x 7"
To ensure exact fitment, this part interchanges with the following manufacturer and industry numbers:
| Brand / Source | Part Number | Notes |
|---|---|---|
| Automann Alternate | 750.128049 | Primary manufacturer alternate |
| Automann Alternate 2 | M12128049 | Fleet standard identifier |
| Reference Number | 128049 | Industry standard ref |
| Eaton | 128049 | Spicer Lock Nut |
| UPC Code | 889626260018 | Universal Product Code |
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