Wheel Seals
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Out of sight, but critical to the longterm performance of your truck are wheel seals (aka "hub" seals) and bearings. Plaza relies on Stemco, SKF (aka Chicago Rawhide or "CR"), Timken, and Federal Mogul/National Seals to provide not only a comprehensive selection but also the training and information that will enable you to make a smart decision when it comes time to replace these components.
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 Follow this link for Wheel Bearing Information
Stemco (Specialized Truck Equipment Manufacturing Company) was established in 1951 in St. Charles, Missouri and began as a supplier of truck parts not much earlier than Plaza. They went on to invent the use of oil lubrication for wheel bearings. STEMCO makes wheel seals in four designs to meet all of the specialized needs of heavy duty applications. |
 Stemco Guardian HP Seal  Stemco Gritguard Seal |
Stemco Two Piece Seals
Guardian HP is the standard seal for the trailer industry. Gritguard is the choice for fleets working in grueling environments.
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Stemco One Piece Seals Voyager is designed for regional route trucks and city delivery with the stop & go frequency that requires more frequent brake jobs and need seals for only regular duty. Discover seals fulfill the needs of long haul carriers needing long life seals and running outboard mounted drums that allow brake changes without seal replacement.
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 Stemco Voyager Seal  Stemco Discover Seal |
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 SKF, originally Chicago Rawhide, CR, supplies two best selling grades of wheel seals. The SKF Scotseal Classic using nitrile rubber has been a reliable standard for more than 30 years. The Scotseal PlusXL is an upgrade from the Classic and offers extended life by featuring a higher temperature elastomeric material . Click below for the brochures for these products.
Other Helpful Information
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Wheel Seals Currently in Stock
Below are the wheel seals currently in stock. Most seals fit a variety of axles and only the general class of axle is shown. To verify that a seal fits your particular axle you can call us, find your axle in Timken’s Wheel Bearing Application Catalogue, or find your current seal in Stemco’s Seal Interchange reference.
| Part Number | Axle |
| | Stemco Voyager |
| | 393-0103 | Drive | 34,000#, 38,000# Mack |
| | 393-0104 | Drive | 44,000# Mack |
| | 393-0112 | Drive | 34,000# Eaton, Ford, Navistar, White |
| | 393-0173 | Drive | 38,000#, 46,000# Eaton, Freightliner,Meritor,Navistar, Volvo |
| | 383-0136 | Steer | 12,000# Meritor, Eaton, Freightliner, Navistar, Peterbilt, |
| | 383-0139 | Steer | 12,000# Mack |
| | 383-0164 | Steer | 16,000# Navistar, Mack, Meritor, Peterbilt, Volvo |
| | 383-0166 | Steer | 6,000# 7,500#, Front Axle, Navistar |
| | 383-8139 | Steer | Kit with 383-0139 seal, 310-1132 bushing; for 12,000# Mack |
| | 373-0123 | Trailer | ProPar, Fruehauf, Eaton, Meritor |
| | 373-0143 | Trailer | 22,500# Meritor, Standard Forge, Dana, Eaton |
| | 373-0144 | Trailer | 20,000# Meritor, Shuler |
| | Stemco Guardian HP |
| | 309-0903 | Drive | 34,000# Mack |
| | 309-0904 | Drive | 44,000# Mack |
| | 309-0973 | Drive | 38,000# 46,000# Tandem Axles |
| | 308-0836 | Steer | 12,000# Meritor, Eaton, Navistar, Freightliner, Kenworth |
| | 308-0864 | Steer | 16,000# Navistar, Mack, Meritor, Kenworth, Volvo, Peterbilt |
| | 307-0713 | Trailer | 19,000# Standard Forge, Dana, Meritor, Eaton |
| | 307-0723 | Trailer | Pro-Par, Fruehauf, Eaton P-22, Meritor TP, Dana |
| | 307-0743 | Trailer | 22,500# Meritor Standard Forge, Dana, Eaton |
| | Stemco Guardian |
| | 307-0744 | Trailer | 20,000# Meritor, Shuler |
| | Stemco Grit Guard |
| | 392-9036 | Drive | Meritor, International |
| | 392-9094 | Drive | 34,000# Mack |
| | 392-9096 | Drive | 38,000#, 40,000#, 42,000# Eaton, GMC, Mack, Navistar |
| | 392-9099 | Drive | 34,000# Drive Axle, Eaton, Ford, Navistar, White |
| | 392-9130 | Drive | 44,000# Mack |
| | 392-9131 | Drive | 38,000# 46,000# |
| | 382-8036 | Steer | 12,000# Meritor, Eaton, Navistar, Freightliner, Kenworth |
| | 382-8064 | Steer | 16,000# Navistar, Mack, Meritor, Peterbilt, Volvo |
| | 372-7097 | Trailer | 22,500# Meritor, Standard Forge,, Dana, Eaton |
| | 372-7098 | Trailer | 19,000# Dana, Eaton, Meritor, Standard Forge |
| | 372-7099 | Trailer | Pro-Par Trailer, Dana, Eaton |
| | Stemco Discover |
| | 393-0204 | Drive | 44,000# Mack |
| | 393-0273 | Drive | 38,000#, 46,000# Eaton,Freightliner,Navistar, Meritor,Volvo |
| | 373-0243 | Trailer | 22,500# Meritor, Standard Forge, Dana, Eaton |
| | SKF Scotseal Plus |
| | 38776 | Drive | Ford, International., Meritor, Eaton, Volvo, Standard Forge, GMC, White |
| | 42673 | Drive | Mack |
| | 45093 | Drive | Mack |
| | 47691 | Drive | 38,000# Ford, Interntl., Meritor, Eaton, Kenworth, Peterbilt, Freightliner, Volvo |
| | 47692 | Drive | 38,000# Ford, Interntl., Meritor, Eaton, Kenworth, Peterbilt, Freightliner, Volvo |
| | 48002 | Drive | Mack, GMC |
| | 35058 | Steer | Ford, International., Meritor, Kenworth, Peterbilt, Freightliner, Volvo |
| | 43761 | Steer | Ford, International., Kenworth, Meritor, Volvo, Mack, GMC |
| | 44916 | Steer | International. |
| | 40129 | Trailer | Dana Spicer, Meritor, Eaton, Standard Forge |
| | 42627 | Trailer | Pro Par Axle, Fruehauf, Meritor |
| | 43754 | Trailer | Meritor, Eaton |
| | 46300 | Trailer | Dana Spicer, Meritor, Eaton, Standard Forge |
| | SKF Scotseal Classic |
| | 34387 | Drive | Ford, International., Meritor, Eaton |
| | 38750 | Drive | Eaton, GMC, Meritor, Dana Spicer |
| | 38780 | Drive | Ford, International., Meritor, Eaton, Volvo |
| | 42672 | Drive | Mack |
| | 43860 | Drive | Eaton, Ford, GMC, International., Meritor, Volvo |
| | 45099 | Drive | Mack |
| | 47690 | Drive | Meritor, Dana, International |
| | 47697 | Drive | 38,000# Ford, Interntl., Meritor, Eaton, Kenworth, Peterbilt, Freightliner, Volvo |
| | 48000 | Drive | Mack, GMC |
| | 28758 | Steer | Meritor, Dexter, Interntl., Spicer |
| | 28820 | Steer | Meritor, Dodge, Ford, GMC |
| | 35066 | Steer | Ford, International., Meritor, Kenworth, Peterbilt, Freightliner, Volvo |
| | 43764 | Steer | Ford, Interntl., Kenworth, Meritor, Volvo, Mack, GMC |
| | 45103 | Steer | International |
| | 40136 | Trailer | Dana Spicer, Meritor, Eaton, Standard Forge |
| | 42623 | Trailer | Pro Par Axle, Fruehauf, Meritor |
| | 46305 | Trailer | Dana Spicer, Meritor, Eaton, Standard Forge |
| | National |
| | 370003A | Drive | 38,000# 46,000# |
| | 380003A | Drive | 38,000# 46,000# Tandem Axles |
| | 370001A | Steer | 12,000# Meritor, Eaton, Navistar, Freightliner, Kenworth |
| | 370048A | Steer | 16,000# Navistar, Mack, Meritor, Peterbilt, Volvo |
| | 370211A | Steer |
| | 380001A | Steer | 12,000# Meritor, Eaton, Navistar, Freightliner, Kenworth |
| | 370025A | Trailer | 22,500# Meritor, Standard Forge,, Dana, Eaton |
| | 370036A | Trailer | 19,000# Standard Forge, Dana, Meritor, Eaton |
| | 370037A | Trailer | 20,000# Meritor, Shuler |
| | 370065A | Trailer | Pro-Par Axle, Dana, Eaton |
| | 376590A | Trailer | Pro-Par, Dana, Eaton |
| | 380025A | Trailer | 22,500# Meritor, Standard Forge,, Dana, Eaton |
| | 380065A | Trailer | Pro-Par Axle, Dana, Eaton |
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 Stemco Hubodometer |
