National 710608 Engine Crankshaft Seal - Front

Engine Crankshaft Seal for Front Applications

National 710608 is a metric engine crankshaft seal built for front-position applications across a wide range of Acura, Honda, Mercedes-Benz, Jeep, Dodge, Chrysler, Jaguar, Porsche, and Maybach vehicles. It uses a polyacrylate sealing material and a clockwise-spiral lip design to help maintain a consistent seal at the crankshaft.

National has supplied sealing solutions for more than 75 years, and this part reflects that focus on precise dimensions and application coverage. If you are replacing a front crankshaft oil seal on a Mercedes-Benz C300, Honda Civic, or Acura RDX, National 710608 is built to match the listed OE-style fitments.

Key Features

• Part number: 710608
• Part description: oil seal / engine crankshaft seal
• Sealing material: polyacrylate
• Helix type: clockwise-spiral lip design
• Metric dimensions for accurate housing and shaft fit
• Inside diameter: 1.693 in. / 43.000 mm
• Outside diameter: 2.292 in. / 58.220 mm
• Thickness: 0.276 in. / 7.000 mm
• Housing bore: 2.283 in. / 58.000 mm

Detailed Description

National 710608 is engineered as a front engine crankshaft seal for vehicles that require a 43 mm shaft diameter and a 58.220 mm outside diameter. The polyacrylate sealing material is selected for sealing performance in engine environments, while the clockwise-spiral lip design supports controlled oil retention at the crankshaft interface. This part cross-references MAHLE 67805 and Remy 16896 for the same application.

Fitment coverage includes front crankshaft seal applications on 2019-2020 Acura RDX, 2002-2019 Honda Civic, 2016-2019 Mercedes-Benz GLE350, and many other listed vehicles. It also covers numerous Mercedes-Benz models with W7A700, W5A580, W5A380, W5A330, W5A030, W4A020, and W4A040 transmission-specific applications, along with front-position fitments for Jeep Wrangler, Dodge Charger, Chrysler 300, Honda Accord, and Honda CR-V.

Common Problems This Seal Can Address

• Front crankshaft oil leakage
• Oil seepage around the crankshaft snout
• Contamination of the front engine area from leaking oil
• Seal wear from age, heat, and mileage
• Loss of sealing integrity after transmission or engine service

Installation Notes and Tips

• Confirm the shaft diameter, housing bore, and thickness before installation.
• Verify the exact engine and transmission combination when ordering Mercedes-Benz applications.
• Inspect the crankshaft sealing surface for grooves, scoring, or debris before installing the new seal.
• Use clean installation practices to avoid damaging the sealing lip.
• Match the seal to the front position only, as listed in the fitment data.

Quality Assurance

National has built its reputation on sealing products for more than 75 years, with design support aimed at current vehicle requirements. National 710608 is manufactured to the listed metric dimensions and application-specific fitment data for front crankshaft seal service.