12PCS Fuel Injector Gasket Ring & Element Fit BMW 335i 340i 528i N20 B38 N55

12PCS Fuel Injector Gasket Ring & Element for BMW

This 12PCS fuel injector gasket ring & element seals fuel injectors to the cylinder head to prevent combustion gas leaks.

Overview

This 12PCS fuel injector gasket ring & element provides the essential seals needed when servicing or swapping gasoline direct injectors. Engineered to withstand intense combustion chamber pressures, this 12PCS fuel injector gasket ring & element stops compressed gas leaks that cause misfires. Automotive technicians can trust this 12PCS fuel injector gasket ring & element to deliver a lasting, reliable seal.

Built For Performance

• High-grade seal materials designed for gasoline exposure
• Teflon combustion seal rings for thermal and pressure resistance
• Precise dimensional tolerances for a gas-tight seal
• 12-piece complete set to service multiple injectors simultaneously

Fits These Machines

• for BMW 335i (with N55 engine)
• for BMW 340i (with B58 engine)
• for BMW 528i (with N20 engine)

On-The-Job Use

• Replacing fuel injector seals during carbon cleaning service
• Sealing new injectors during a high-pressure fuel system rebuild
• Resolving cylinder misfire codes caused by leaking injector seals

Specs At A Glance

Good To Know

Q: Why must the Teflon seals be replaced every time an injector is removed? A: Teflon injector seals crush and expand to fit the cylinder head bore during installation, making them one-use seals that cannot be safely reused without leaking.

Q: Do these seals require a special installation tool? A: Yes, compressing and resizing Teflon injector seals requires a specialized injector seal sizing tool set to ensure they fit into the cylinder head without tearing.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.