Description

A premium oil bath wheel seal, the STEMCO 393‑0103 is engineered for 34 K–38 K lb drive axles—commonly used on Mack, Volvo, Freightliner, Navistar, and other commercial vehicles. It delivers robust sealing performance, defending bearings from lubricant loss and contaminant ingress.

Key Specifications

• Inner (bore) diameter: 5.750 in (5 ¾″)

• Width: 1.003–1.006 in (~1.00″)

• Spindle shoulder OD: 4.500

These precise dimensions ensure a seamless fit in OEM hubs, reducing leak risk.

Cross-Reference Part Numbers

This seal directly cross-references with the following OEM and aftermarket part numbers:

• STEMCO: 309‑0903, 392‑9094

• Mack: 32QJ263, 32QJ268, 88AX177, 88AX372, 88AX407, 88AX421, 88AX467

• National: 370022A, 380022A, 415371

• Chicago Rawhide: 45066, 45069, 45070, 45093, 45097, 45098, 45099, 45108, 46200, 46211, 504081

• Triseal: 65270U, 65270W, 70796

• NOK: 856

• Meritor: A1805S615, MER0103, MER0203

• Boss Seals: B370022, B45099

• Mechanex/Barrier: 785400P, HS45097

• Victor: 48095, SS64452, SS64542

Also listed by OEMs like Volvo (e.g., 3096227)

Applications & Fitment

Ideal for:

• Mack 34 K / 38 K lb drive axles (“Voyager” series)

• Other heavy-duty trucks with compatible bearing sets (inner cone 572 or 582; outer 563/567)

• Installation Tools

To install properly, use:

• Handle/body: 551‑0001

• Universal tool head: 551‑5415

• Bearing guide: 570‑0023

Why Choose STEMCO 393‑0103?

• Exact OEM spec compliance ensures long-lasting sealing and low maintenance

• Heavy-duty materials resist wear and environmental contaminants

• Broad cross-reference compatibility simplifies sourcing replacements