National 710436 Engine Camshaft Seal

National 710436 Camshaft Seal for Lexus and Toyota

National 710436 is an engine camshaft seal built for sealing performance in select Lexus and Toyota applications. It uses a polyacrylate sealing material and a clockwise-spiral lip design to help maintain a consistent seal at the camshaft interface.

Compatible With 1992-2005 Lexus and Toyota applications, including Lexus GS300, Lexus IS300, Lexus SC300, and Toyota Supra. This part cross-references Four Seasons 67593 for the same application.

Key Features

• Engine camshaft seal for sealing the camshaft opening
• Polyacrylate material for sealing durability
• Clockwise-spiral lip design
• Inside diameter: 1.594 in. / 40.500 mm
• Outside diameter: 2.075 in. / 52.700 mm
• Width: 0.236 in. / 6.000 mm
• Housing bore: 2.067 in. / 52.500 mm
• National Series 710400, Part Number 710436

Detailed Description

National 710436 is an oil seal specified for camshaft sealing in engines that require a 40.500 mm shaft diameter and a 52.700 mm outside diameter. The clockwise-spiral lip design is used to support controlled sealing at the rotating shaft surface, while the polyacrylate construction provides a material choice commonly used in engine sealing systems. National has focused on sealing solutions for more than 75 years, and this part reflects that experience in a compact OE-style service component.

Use National 710436 when servicing Lexus GS300, Lexus IS300, Lexus SC300, or Toyota Supra engines that call for this seal specification. The part number 710436 is also a useful reference when matching the seal to the correct camshaft opening dimensions and housing bore requirements.

What This Seal Helps Address

• Oil leakage at the camshaft seal area
• Seepage around the camshaft housing bore
• Seal wear from age, heat, and engine operation
• Loss of sealing performance during engine service
• Replacement needs on Lexus GS300, Lexus IS300, Lexus SC300, and Toyota Supra applications

Installation Notes and Tips

Confirm shaft diameter, housing bore, and seal orientation before installation. Inspect the camshaft surface for scoring or wear, and clean the bore thoroughly so the seal seats evenly. Install the seal squarely to avoid distortion of the lip and to preserve sealing contact. Verify the clockwise-spiral lip design is oriented correctly for the application.

Quality Assurance

National is a long-established sealing brand with a history of supplying engine sealing components for automotive service. Part Number 710436 is built to the listed dimensions and material specification for the applications shown.