Bosch 3976 Engine Oil Filter

Reliable Engine Oil Filtration for Audi, Nissan, Porsche, and More

The Bosch Premium Oil Filter 3976 is engineered to provide consistent engine protection for a range of vehicles including Audi A4, Nissan Maxima, Porsche 911, and Volkswagen Golf. Designed with quality cellulose paper filter media and essential features like an anti-drain back valve, this spin-on oil filter supports optimal engine performance and longevity.

• Filter media material: cellulose paper for effective contaminant capture
• Spin-on filter type with 3/4-16 UNF-2B inside thread size
• Anti-drain back valve to prevent dry starts and maintain oil pressure
• Bypass relief valve rated at 20-25 PSI for consistent oil flow
• Height: approximately 5.18 inches; outside diameter: 3.78 inches
• Gasket made from durable nitrile material for secure sealing
• Burst pressure rated at 255 PSI for structural integrity under pressure

About the Bosch Premium Oil Filter Line

The Bosch Premium Oil Filter line focuses on delivering dependable filtration solutions that meet or exceed OEM specifications. The 3976 model is part of this line, offering a balance of filtration efficiency and durability suitable for various European and Japanese vehicles. This product line emphasizes quality materials and design features such as anti-drain back valves and bypass relief valves to protect engines under different operating conditions.

Product Details and Specifications

The Bosch 3976 oil filter uses cellulose paper as its filtering medium, which effectively traps contaminants while allowing proper oil flow. Its spin-on design with a 3/4-16 UNF-2B thread size ensures compatibility with multiple vehicle models including Audi A4 Quattro, Nissan Pathfinder, Porsche 911, Volkswagen Jetta, and Volvo 760. The anti-drain back valve prevents oil from draining out of the filter when the engine is off, reducing wear during startup. The bypass relief valve activates between 20-25 PSI to maintain oil circulation if the filter becomes clogged. With a height of 5.18 inches and an outside diameter of 3.78 inches, this filter fits securely in the designated housing. The nitrile gasket provides a reliable seal to prevent leaks under normal operating pressures.

Common Applications and Issues Addressed

• Maintains clean engine oil to reduce wear on critical engine components
• Prevents oil starvation during cold starts with anti-drain back valve
• Ensures continuous oil flow even if filter media becomes clogged
• Protects engines in Audi, Nissan, Porsche, Volkswagen, and Volvo models from contaminants
• Helps maintain engine performance and fuel efficiency by proper filtration

Installation Notes and Tips

When installing the Bosch Premium Oil Filter 3976, ensure the old filter is fully removed and the mounting surface is clean. Apply a light coat of clean engine oil to the nitrile gasket before threading the new filter onto the engine. Tighten the filter by hand until the gasket contacts the mounting surface, then follow vehicle manufacturer torque specifications if available. Check for leaks after installation and during initial engine operation. This filter is designed for spin-on installation compatible with vehicles such as the Nissan 200SX, Porsche 911, and Volkswagen Passat.

Quality Assurance and Warranty

Bosch manufactures the Premium Oil Filter 3976 to meet stringent quality standards, including burst pressure testing at 255 PSI to ensure durability under high engine pressures. The inclusion of both anti-drain back and bypass relief valves supports reliable engine protection. While specific warranty details are not provided, Bosch products typically adhere to OEM quality requirements and are backed by Bosch’s commitment to automotive component reliability.