150PCS M5–M22 Copper Crush Washer Gasket Set — Flat Ring Seal Assortment Kit for Oil Pan & Hydraulic Fittings

150PCS M5–M22 Copper Crush Washer Gasket Set — Flat Ring Seal Assortment for Oil Pan & Hydraulic Fittings

Comprehensive 150-piece copper crush washer gasket assortment covering M5 to M22 inner diameters. Copper crush washers provide superior sealing compared to aluminum on high-pressure hydraulic fittings, fuel system connections, and oil drain plugs. The soft copper deforms to fill micro-gaps, creating a leak-free metal-to-metal seal. The assortment kit covers all common sizes for automotive, hydraulic, and plumbing applications.

Kit Specifications

Why Choose Copper Over Aluminum Crush Washers?

• Superior malleability — copper deforms more easily than aluminum; better sealing on worn or damaged threads
• Higher pressure rating — copper handles higher hydraulic pressures than aluminum; suitable for hydraulic and fuel system fittings
• Corrosion resistant — copper resists oil, fuel, and hydraulic fluid corrosion
• 150pcs assortment — M5–M22 covers all common automotive and hydraulic fitting sizes

Typical Applications

• Engine oil drain plug sealing (M12–M16)
• Hydraulic fitting and banjo bolt sealing
• Fuel system fitting and injector sealing
• Brake caliper banjo bolt sealing
• Power steering and transmission fitting sealing

Package Contents

• 150 × copper crush washer gaskets (M5–M22, multiple sizes)