Timken 710218 Differential Seal - Rear

Timken 710218 Rear Differential Seal

The Timken 710218 rear differential seal is built for vehicles that need reliable lubricant retention and contamination control at the axle housing. It is a direct-fit sealing solution for select Mazda applications, including Mazda MX-5 Miata, Mazda CX-9, Mazda CX-7, Mazda 6, and Mazda RX-7 rear differential service.

• Precision sealing design helps keep gear oil and grease inside the differential
• Reinforced outer case resists installation damage and supports long-term durability
• Ribbed rubber inner diameter helps seal minor spindle imperfections and improve seating
• Internal contamination exclusion system helps block debris that can lead to leakage
• Vent holes promote lubricant flow around the seal lip to reduce heat buildup

Built for Rear Differential Service

Timken 710218 is engineered for rear differential sealing where consistent lubricant control matters. It is compatible with 2006-2019 Mazda MX-5 Miata, rear; 2007-2015 Mazda CX-9, rear; 2007-2012 Mazda CX-7, rear; 2006-2007 Mazda 6, rear; 1999-2005 Mazda Miata, rear; 1990-1997 Mazda Miata, rear; and 1987-1991 Mazda RX-7, rear, locking differential. This part cross-references National 710218 and Dorman - HELP 14007 for the same application. The Timken 710218 seal is designed to support clean, stable operation at the differential by helping maintain proper lubricant levels and reducing contamination entry.

Common Problems This Seal Can Address

• Rear differential fluid leakage at the axle seal area
• Contamination entering the differential housing
• Seal wear caused by heat buildup around the lip
• Poor sealing on shafts with minor surface imperfections
• Noise or driveline concerns related to low lubricant level

Installation Notes and Tips

Inspect the sealing surface, axle shaft, and housing bore before installation. Clean away old lubricant, debris, and corrosion so the new seal seats evenly. Use proper seal installation tools to avoid damaging the reinforced outer case, and verify that the seal lip is positioned correctly before returning the vehicle to service.

Quality Assurance

Timken oil and grease seals use precision sealing designs and contamination-control features to support dependable driveline service. The reinforced case, ribbed inner diameter, and vented seal design reflect Timken’s focus on durability and consistent sealing performance.