Engine Copper Washer Set M4 M14 – 100 Pieces

Reference mv-1299

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Engine copper washer set M4 M14, ideal for ensuring a perfect seal on drain plugs, oil, fuel or hydraulic fittings. Includes 100 crushable solid copper flat washers in 9 different sizes, delivered in a compartmentalized storage box.

4,90 € incl. VAT

Quantity

Available [40 in stock] Shipped today , expected delivery date 12/9/25

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Engine Copper Washer Set M4 M14 – 100 Pieces

This engine copper washer set M4 M14 is essential for any motorcycle workshop. It ensures you always have the most common sizes on hand for working on engines, drain plugs or hydraulic connections. Whether you are a tuner, mechanic or two-wheel enthusiast, this kit guarantees clean, quick and leak-proof work.

Technical specifications of the set

Contents: 100 flat solid copper washers
7 motorcycle-compatible sizes:
- 20 × M4×8×1 mm
- 20 × M5×g×1 mm
- 20 × M6×10×1 mm
- 10 × M8×12×1 mm
- 10 × M10×14×1 mm
- 10 × M12×16×1 mm
- 10 × M14×18×1 mm
Material: solid copper (red copper)
Heat resistance: up to 1083 °C
Box: compact and compartmentalised (130 × 70 mm)

Why choose these copper washers for motorcycles?

This engine copper washer set M4 M14 covers most sealing needs on a motorcycle: oil changes, brake line replacements, oil or fuel connections, installation of sensors or stressed components.

Thanks to their thermal conductivity and corrosion resistance, they ensure a perfect seal while preventing leaks and pressure loss. The solid copper allows good deformation when crushed, without breaking or cracking, even after multiple tightening cycles.

Simple and efficient workshop use

These washers are easy to handle, even with gloves. Their smooth surface reduces friction on mechanical parts and allows uniform pressure distribution. Organised in a compartmentalised box, they prevent selection errors — and thus nasty surprises during assembly or delivery.

In short, with this tidy kit, no more confusion on Monday mornings: you won’t be shipping washers instead of a kickstand anymore!

Perfect for all motorcycle mechanics

This engine copper washer set M4 M14 is designed for professional workshops as well as experienced DIYers. It helps improve efficiency and reliability for all kinds of maintenance, especially on road bikes, sports bikes or vintage motorcycles that require precise parts.

Compact, well organised and durable, this kit is a must-have for any motorcycle tool bench or toolbox.