Bosch 3981 Engine Oil Filter

Reliable Engine Oil Filtration for Lexus and Toyota Vehicles

The Bosch Premium Oil Filter 3981 is designed to provide effective engine oil filtration for select Lexus and Toyota models. Engineered with cellulose paper filter media, this cartridge-style oil filter helps maintain engine cleanliness and performance.

• Filter media material: cellulose paper for efficient contaminant capture
• Oil filter height: 3.22 inches
• Outside diameter: 2.756 inches
• Gasket material: nitrile for reliable sealing
• Cartridge filter type compatible with specific Lexus and Toyota models
• Additional accessories included for installation support

About the Bosch Premium Oil Filter Line

The Bosch Premium Oil Filter line focuses on delivering dependable filtration solutions using quality materials such as cellulose paper filter media. This product line is designed to meet the filtration needs of modern engines, ensuring proper oil flow and contaminant removal without bypass or anti-drain back valves, suitable for vehicles that do not require these features.

Product Details and Specifications

The Bosch Premium Oil Filter 3981 features a cartridge design with a height of 3.228 inches and an outside diameter of 2.756 inches. The filter media is made from cellulose paper, which effectively traps dirt and debris to protect engine components. The nitrile gasket material ensures a secure seal to prevent oil leaks. This filter does not include an anti-drain back valve or bypass relief valve, making it suitable for engines designed to operate without these components. The filter’s bottom inside diameter measures 1.06 inches, and it comes with additional accessories to assist with installation.

Compatible Vehicles and Applications

• Compatible with Lexus models including GS300, GS350, GS450h, GS460, GX460, IS250, IS300, IS350, LS460, LS500, LS600h, RC300, and RC350
• Compatible with Toyota models such as 4Runner, Corolla, FJ Cruiser, and Tundra
• Designed for use in engines requiring a cartridge-style oil filter without anti-drain back or bypass valves

Common Issues Addressed by Bosch Premium Oil Filter 3981

• Prevents engine wear caused by contaminants in the oil
• Maintains proper oil flow and pressure by effective filtration
• Reduces risk of oil leaks with nitrile gasket sealing
• Helps avoid engine damage from clogged or inefficient filters
• Supports engine longevity in Lexus and Toyota vehicles

Installation Notes and Tips

When installing the Bosch Premium Oil Filter 3981, ensure the engine is cool and the oil system is depressurized. Verify compatibility with your specific Lexus or Toyota model before installation. Use the included accessories as needed to facilitate proper fitment. Tighten the filter according to manufacturer torque specifications to avoid leaks or damage. Since this filter does not have an anti-drain back valve, it is important to follow vehicle-specific oil change intervals to maintain optimal engine protection.

Quality Assurance and Warranty

Bosch maintains strict quality control standards for the Premium Oil Filter line, ensuring consistent filtration performance and durability. The filter media and gasket materials are selected to meet OEM requirements. While specific warranty details are not provided, Bosch products typically come with manufacturer-backed quality assurance to support reliable engine protection.