Stemco 383-0139 Gasket – Premium Hub Cap Gasket for Heavy-Duty Trucks

Stemco 383‑0139 Voyager® Drive Axle Wheel Oil Seal

🧷 Key Dimensions & Features

• Bore Diameter (ID): 5.125 in ±0.01

• Seal Width: 0.960 in

• Spindle Shoulder OD (Axle Ring OD): 4.000 i

• Seal Type: Voyager® L2 drive axle wheel oil seal; hub-installed, bonded rubber ID/OD for easy fitting

• ⚙️ Application Fitment

Specifically designed for 12,000 lb Mack front axles, but also used on Meritor Center‑Point, Mack, and Navistar front steer/drive systems.

• Inner Bearing Cup/Cone: 663/641 or HM212011/212049

• Outer Bearing Cup/Cone: 65320/65385 or 45220/45280

🔗 Cross‑Reference Compatibility

A direct replacement for these OEM and aftermarket references:

• Stemco: 383‑0239, (kit version: 383‑8139 with 310‑1132 shoulder ring)

• National: 370033A, 370198A, 455188

• Chicago Rawhide/SKF: 39381, 39975, 39977, 39979, 39980, 39981, 39988, 39990, 40049, 40051, 40052

• Mack: 32QJ248, 32QJ262, 88AX110, 88AX305, 88AZ110P1

• Triseal: 65294U, 69628

• Victor: SS64502, Victor SS64495-1, plus others like VICTOR 48097

🛠️ Installation Notes

• Axle ring required: 310‑1132 shoulder bushing (included in kit 383‑8139)

• Installation Tools: Universal Hub Handle 551‑0001 + Tool Head 551‑5413

• Inner Diameter (ID): Approx. 4.44"

• Bolt Hole Pattern: 6-hole

Cross Reference Part Numbers:
383-0139, National 370031A, Chicago Rawhide (CR) 237059, Meritor R005385, Transcom T3830139, Automann 142.3830139, Dayton 334-222

Common Applications:
Compatible with many trailer and drive axle hub caps used on Class 6–8 trucks and trailers.