Timken 224450 Automatic Transmission Torque Converter Seal

Automatic Transmission Torque Converter Seal

Timken 224450 is an automatic transmission torque converter seal built for precise sealing at the transmission interface. It is sized for select Nissan, INFINITI, and Mercury applications and uses a reinforced outer case, ribbed inner diameter, and contamination-exclusion features to support a secure seal.

Key Features

• N-Polyacrylate material for transmission sealing applications
• Outside diameter: 2.332 in. (59.23 mm)
• Shaft diameter: 1.732 in. (43.99 mm)
• Housing bore: 2.323 in. (59.00 mm)
• Width: 0.268 in. (6.81 mm)
• Reinforced outer case helps resist installation damage
• 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 build-up

Detailed Description

Timken 224450 is an automatic transmission torque converter seal engineered for dependable sealing performance in select Nissan, INFINITI, and Mercury vehicles. The seal’s N-Polyacrylate construction, reinforced outer case, and ribbed inner diameter are designed to maintain a tight fit at the shaft and housing interface, while the vented design helps move lubricant around the seal lip to manage heat. This part cross-references National 224450 for the same application. Fits 1989-1996 Nissan 240SX, RE4R01A and RE4R03A; Fits 1990-1996 Nissan 300ZX, RE4R01A and RE4R03A; Fits 1993-1999 Nissan Quest; Fits 1993-2002 Mercury Villager; Fits 1996-1999 INFINITI I30; Fits 2000-2003 Nissan Altima; Fits 2000-2003 Nissan Maxima; Fits 2000-2003 Nissan Sentra; Fits 2005-2006 Nissan Sentra; Fits 2008 Nissan Versa.

What It Helps Address

• Transmission fluid leakage at the torque converter seal area
• Debris intrusion that can damage sealing surfaces
• Seal fit issues caused by minor spindle imperfections
• Heat-related seal wear from poor lubricant circulation
• Installation damage to the seal outer case

Installation Notes and Tips

Verify shaft diameter, housing bore, and width before installation to confirm the seal matches the transmission case and torque converter interface. Inspect the sealing surface for scoring, burrs, or contamination before assembly, and keep the area clean during installation. Confirm the transmission code where applicable, including RE4R01A and RE4R03A applications on Nissan 240SX and 300ZX models.

Quality Assurance

Timken sealing products are built with precision sealing designs and durability-focused construction for transmission service. Part number 224450 is manufactured to the listed dimensions and application coverage for accurate replacement selection.