National 229210 Engine Crankshaft Seal - Rear

Overview of National 229210 Engine Crankshaft Seal

The National 229210 engine crankshaft seal is designed for reliable sealing performance in various Lexus and Toyota models. Engineered with a bi-directional lip design and fluoro-elastomer material, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.

• Inside diameter: 3.622 inches (92.000 mm)
• Outside diameter: 4.341 inches (110.260 mm)
• Thickness/width: 0.374 inches (9.500 mm)
• Bi-directional helix lip design for enhanced sealing
• Constructed from durable fluoro-elastomer material
• Compatible with multiple Lexus and Toyota models

Technical Specifications and Design Features

The National 229210 crankshaft seal features a precise inside diameter of 3.622 inches (92 mm) and an outside diameter of 4.341 inches (110.26 mm), fitting housing bores measuring approximately 4.331 inches (110 mm). Its 0.374 inch (9.5 mm) thickness ensures a secure fit and effective sealing. The bi-directional helix lip design improves sealing efficiency by preventing oil leakage in both rotational directions, which is critical for maintaining engine performance. The fluoro-elastomer material offers resistance to heat, oil, and chemical degradation, making it suitable for demanding engine environments.

Compatible Lexus and Toyota Models

This engine crankshaft seal is compatible with a wide range of Lexus and Toyota vehicles, including but not limited to the Lexus ES250, ES300, ES330, ES350, GS300, GS350, GS450h, IS250, IS300, IS350, LC500h, LS500h, RX300, RX330, RX350, RX350L, RX400h, RX450h, RX450hL, RC300, RC350, and Toyota 4Runner, Avalon, Camry, Highlander, Pickup, RAV4, Sienna, Solara, Tacoma, T100, Tundra, and Venza models. This ensures broad applicability for maintenance and repair needs.

Common Applications and Problem Resolution

• Prevents oil leaks around the engine crankshaft
• Maintains engine oil pressure and cleanliness
• Reduces risk of engine damage due to oil contamination
• Addresses wear-related seal failures in older vehicles
• Helps eliminate oil seepage that can cause engine bay contamination

Installation Notes and Tips

When installing the National 229210 crankshaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without distortion. Verify the seal orientation matches the bi-directional lip design for optimal sealing. Lubricate the seal lip with clean engine oil before installation to reduce initial wear. Follow vehicle-specific service manual instructions for torque specifications and installation procedures.

Quality Assurance and Warranty Information

National engine crankshaft seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer construction provides resistance to heat and chemical exposure, contributing to long service life. The 229210 part number is part of National's 220000 series, known for consistent quality in sealing systems. Warranty coverage details should be confirmed with the product documentation or supplier.