Copper Washer, 12mm ID, 18mm OD

Upgrade your automotive system with our 12mm ID x 18mm OD Copper Washer, built for reliable sealing in high-performance applications. Made from premium copper, this washer offers excellent corrosion resistance, thermal conductivity, and durability—ideal for fuel systems, banjo fittings, hydraulic setups, and more.

The 12mm inner diameter provides a secure fit, while the 18mm outer diameter ensures a wide contact surface for effective sealing under pressure. Whether you're tackling routine maintenance or a full vehicle restoration, this copper crush washer helps prevent leaks and keeps your systems running smoothly.

High-Quality Copper – Corrosion-resistant and wear-proof
Exact Fit – 12mm ID x 18mm OD for precision applications
Thermal Conductivity – Promotes efficient heat dissipation
Versatile Use – Ideal for fuel, hydraulic, and fluid systems
Reliable Performance – Trusted by DIYers and professionals

Compatible With: Banjo bolts, fuel fittings, and general automotive fluid systems.