901-08 Aluminium washer 18mm (EACH)

Speedflow 901-08 | 18mm Aluminium Sealing Washer — Sold Individually

The Speedflow 901-08 is a precision-made 18mm aluminium sealing washer — an essential consumable for motorsport and performance automotive builds running larger banjo bolt fittings, drain plugs, and ported components with M18 fasteners. Soft aluminium construction compresses on tightening to conform to mating surfaces, creating a clean, reliable, leak-free seal without thread sealant or PTFE tape. The 18mm size is commonly found on larger oil system drain plugs, sump plugs, and high-flow banjo bolt applications in performance and motorsport engines.

Why Choose the Speedflow 901-08?

• Soft aluminium construction — compresses to conform to mating surfaces for a positive, leak-free crush seal
• 18mm internal diameter — suits M18 banjo bolts, sump drain plugs, and larger port fittings on engines and gearboxes
• No sealant required — aluminium crush washers seal on compression alone for a clean, professional result
• Single-use design — should be replaced each time the fitting is removed to ensure a fresh, reliable seal
• Ultralight at just 1g — negligible weight for a critical sealing component
• Sold individually — order the exact quantity needed for your build or service

Ideal Applications

M18 sump drain plug seals, larger oil system banjo bolt applications, engine and gearbox port sealing, and any application requiring an 18mm aluminium crush washer.

Specifications

• Part Number: SF901-08
• Internal Diameter: 18mm
• Material: Aluminium
• Type: Sealing / Crush Washer
• Weight: 1g
• Sold: Individually (each)

Stock held locally in Perth, WA — fast dispatch Australia-wide.