SKF 37405 Engine Crankshaft Seal - Rear

SKF 37405 Rear Crankshaft Seal for Ford

SKF 37405 is a rear engine crankshaft seal built for Ford applications that need controlled sealing at the crankshaft. It uses a LongLife sealing surface type and precise dimensions to help maintain a stable seal in demanding engine environments.

Key Features

• Part number: SKF 37405
• Rear engine crankshaft seal for Ford E-250, E-350, E-350 Econoline Club Wagon, F-250, and F-350 applications
• Outside diameter: 4.756 in.
• Shaft diameter: 3.750 in.
• Width: 0.438 in.
• LongLife sealing surface type for extended sealing performance
• Engineered with premium materials and SKF sealing design expertise

Detailed Description

SKF 37405 is a rear crankshaft seal designed for Ford vans and trucks from 1983-1994, including Ford E-350 Econoline, Ford E-350 Econoline Club Wagon, Ford E-250 Econoline Club Wagon, Ford F-250, and Ford F-350 rear applications. This seal is built to the listed shaft diameter, outside diameter, and width for accurate fitment at the crankshaft sealing surface. SKF has a long history in shaft seal development, and this part reflects that experience with a design focused on keeping engine oil contained and contaminants out. This part cross-references 1S1164 and 48051 for the same application.

What It Helps Address

• Rear main seal oil leakage
• Oil loss at the crankshaft sealing area
• Contamination entering the engine through a worn seal
• Seal wear from age, heat, and mileage
• Fitment issues when replacing an original rear crankshaft seal on Ford E-350 Econoline or Ford F-250 applications

Installation Notes and Tips

Verify the rear position and confirm whether the engine uses an OEM ring before ordering. Fitment includes 1992 Ford E-350 Econoline and E-350 Econoline Club Wagon applications with notes for vehicles built from 2/3/92, as well as 1983-1994 Ford rear applications listed in the fitment data. Match the seal dimensions to the crankshaft and housing before installation, and inspect the sealing surface for wear or damage.

Quality Assurance

SKF designs and manufactures seals to specific application requirements using premium materials and established sealing methods. The brand’s seal development history and manufacturing focus support consistent fit and long service life in engine sealing applications.