AUTOMAJOR 100-piece crush washer kit laid out for easy size selection and oil changes.
AUTOMAJOR washers by size laid out for quick selection across brands during oil changes.
Copper vs aluminum washers shown for different sealing needs.
AUTOMAJOR copper washer sealing a drain plug during an oil change.
AUTOMAJOR 100-piece crush washer kit laid out for easy size selection and oil changes.
AUTOMAJOR washers by size laid out for quick selection across brands during oil changes.
Copper vs aluminum washers shown for different sealing needs.
AUTOMAJOR copper washer sealing a drain plug during an oil change.

AUTOMAJOR 100-Pack Oil Drain Plug Crush Washer Kit — 10–18mm, Copper & Aluminum, Universal Fit

Versatile, ready-to-use oil drain plug crush washer kit The AUTOMAJOR 100-piece Crush Washer Assortment combines copper and...
Vendor: AUTOMAJOR
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AUTOMAJOR 100-piece crush washer kit laid out for easy size selection and oil changes.

AUTOMAJOR 100-Pack Oil Drain Plug Crush Washer Kit — 10–18mm, Copper & Aluminum, Universal Fit

£30.03
AUTOMAJOR 100-piece crush washer kit laid out for easy size selection and oil changes.
AUTOMAJOR washers by size laid out for quick selection across brands during oil changes.
Copper vs aluminum washers shown for different sealing needs.
AUTOMAJOR copper washer sealing a drain plug during an oil change.

AUTOMAJOR 100-Pack Oil Drain Plug Crush Washer Kit — 10–18mm, Copper & Aluminum, Universal Fit

£30.03
Description
Description
x

Versatile, ready-to-use oil drain plug crush washer kit

The AUTOMAJOR 100-piece Crush Washer Assortment combines copper and aluminum seals in a single, organized set. With 50 copper and 50 aluminum washers across five common sizes, this kit is designed to fit a broad range of vehicles and powersport equipment. Each size includes 10 copper and 10 aluminum washers: 10mm, 12mm, 14mm, 16mm, and 18mm.

Why two materials matter

Copper washers are softer and excel at sealing on cast iron and steel surfaces, while aluminum washers offer compatibility with aluminum oil pans and help prevent galvanic issues. Having both materials on hand lets you tailor the seal to the job and vehicle.

What’s inside and how it helps

  • 100-piece assortment: 50 copper and 50 aluminum washers in five sizes (10mm–18mm).
  • Size-by-size organization makes selection quick and minimizes guesswork during service.
  • Designed for broad compatibility, including many mainstream cars, trucks, and select motorcycles.
  • Single-use, replace-at-every-oil-change crush washers help minimize drips and resealing issues.
  • The kit is suitable for professional shops, DIY enthusiasts, fleets, and powersport hobbyists.
  • Compact storage supports easy toolbox or service-bay organization.

Tip: before an oil change, confirm the drain plug thread size and vehicle model to ensure the best fit. Keeping a complete kit on hand minimizes last-minute trips to the parts store and supports a smooth maintenance workflow.

In practice, technicians appreciate having five sizes in two materials ready for mixed fleets. If you work on Toyota, Honda, BMW, Subaru, Mazda, or select motorcycles, this set increases the odds of a proper seal on the first try. The combination works well across aluminum and steel oil pans, helping you adapt to different maintenance scenarios without clutter.

FAQ

Q: What vehicles and sizes are covered by this kit?

A: The kit includes 10, 12, 14, 16, and 18 mm washers in copper and aluminum, suitable for many cars and powersport models.

Q: Why replace the crush washer at every oil change?

A: Replacing with a fresh washer helps ensure a proper seal and reduces the chance of drips after service.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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