National 710237 Engine Crankshaft Seal - Rear

National 710237 Rear Engine Crankshaft Seal

National 710237 is a rear engine crankshaft oil seal built for a wide range of GM, Saab, Saturn, and Isuzu applications. It uses a fluoro-elastomer sealing material and a counter-clockwise spiral lip design to help maintain a consistent seal at the crankshaft.

With a 3.543 in. shaft diameter, 4.098 in. outside diameter, and 0.433 in. width, this seal is sized for metric applications that require precise housing and shaft dimensions. National 710237 is a direct-fit rear crankshaft seal for many Buick LaCrosse, Chevrolet Malibu, and Cadillac CTS applications.

Key Features

• Part number: 710237
• Rear engine crankshaft seal / oil seal
• Fluoro-elastomer construction for sealing performance
• Counter-clockwise spiral lip design
• Metric dimensions for accurate fitment
• Inside diameter: 3.543 in. / 90.000 mm
• Outside diameter: 4.098 in. / 104.100 mm
• Width: 0.433 in. / 11.000 mm

Detailed Description

National has supplied sealing solutions for more than 75 years, and the 710237 rear crankshaft seal reflects that focus on dimensional accuracy and modern sealing materials. The fluoro-elastomer seal body is paired with a counter-clockwise spiral lip design to support crankshaft sealing in rear-position applications where oil control is critical. This part cross-references FEL-PRO 35836 and MAHLE JV1705 for the same application.

Compatible With rear crankshaft seal applications on vehicles such as Buick Envision, Chevrolet Camaro, Chevrolet Equinox, GMC Terrain, Cadillac CTS, and Saab 9-3. The National 710237 part number is also commonly searched for rear oil seal replacement on Buick LaCrosse, Chevrolet Malibu, and Cadillac CTS models.

What This Part Helps Address

• Rear main oil leakage at the crankshaft seal area
• Oil seepage from worn or hardened sealing lips
• Seal failure caused by age, heat, and crankshaft movement
• Loss of proper crankcase oil containment
• Repeat repairs when the original seal no longer holds tension

Installation Notes and Tips

Verify shaft diameter, housing bore, and width before installation. This seal is listed with a 3.543 in. shaft size, 4.094 in. housing bore, and 4.098 in. outside diameter, so matching the engine specification is important for proper seating. Clean the sealing surface thoroughly and inspect the crankshaft for wear or scoring before installing the new seal.

Fitment includes rear-position applications for 1987-2020 vehicles such as Buick LaCrosse, Chevrolet Malibu, Cadillac CTS, Chevrolet Equinox, GMC Terrain, and Saab 9-3. Confirm the exact engine configuration and seal dimensions for your vehicle before service. National 710237 is a metric oil seal designed for precise rear crankshaft sealing.

Quality Assurance

National is a long-established sealing brand with a history of supplying premium sealing solutions and keeping pace with current vehicle requirements. The 710237 rear crankshaft seal is built to meet the dimensional and material demands of modern engine sealing applications.