Timken 6638S Wheel Seal

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• National 6638S
• Stemco 3151515
• Stemco 3929112
• Mack 30QJ258

• Internal contamination exclusion system helps prevent debris penetration which may lead to leakage
• Oil and grease seals from Timken feature precision sealing designs to prevent lubricant escape and stop harmful contaminants from entering
• Reinforced outer case helps prevent installation damage and enhances durability
• Ribbed rubber inner diameter designed to seal minor spindle imperfections and promote positive spindle seating
• Vent holes allow lubricants to flow freely around the seal lip - cooling seal components and removing heat build-up

1 Year Warranty.