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  • Replacement Cummins Block Drain O-Ring
  • Replacement Cummins Block Drain O-Ring

Replacement Cummins Block Drain O-Ring

$8.00
$8.00
Shipping calculated at checkout.

Cummins Block Drain O-Ring Replacement

Stop a nuisance leak before it becomes a bigger problem. This direct-fit replacement o-ring is made for Cummins block drain plug applications, helping the plug seal properly and stay that way.

Why Replace Your Block Drain O-Ring?

The block drain o-ring is a small, inexpensive part that does an important job. Over time, heat cycles and exposure to oil can cause the original seal to harden, flatten, or crack, leading to slow drips that are easy to ignore until they are not.

Replacing it during routine oil service is a simple way to help keep your engine bay clean and your oil where it belongs.

Features & Benefits

  • Direct-fit design: Engineered specifically for Cummins engine block drain plug applications, so you are not guessing at fitment or trimming down a generic seal.
  • Built for diesel duty: Designed to handle the high-temperature demands of diesel oil drain applications and maintain a reliable seal through repeated heat cycles.
  • A genuine maintenance value: At just $8.00 CAD, replacing this o-ring at every drain service costs next to nothing compared to cleaning up an oil leak or chasing down the source of a slow drip.
  • Sold by Black Sheep Industries (True North Turbos): Sourced and sold in Canada, so you are supporting a Canadian diesel specialist rather than rolling the dice on a bulk import kit.
  • Simple, no-fuss install: Fits over your existing drain plug; no special tools are required for the seal itself.

A Small Part That Earns Its Keep

If you are already under the truck for an oil change, there is no reason not to freshen this seal while you are at it. Grab a Cummins block drain o-ring replacement from Black Sheep Industries and cross one more potential leak off your list.

FAQ

What does the Cummins block drain o-ring do?

The block drain o-ring seals the Cummins engine block drain plug to help prevent oil from dripping past the plug.

When should I replace the block drain o-ring?

It is a good idea to replace it during routine oil service, especially if the original seal has hardened, flattened, cracked, or started to drip.

Does this o-ring require special tools to install?

No special tools are required for the seal itself. It fits over your existing drain plug.

Is this a direct-fit replacement?

Yes. This o-ring is engineered specifically for Cummins engine block drain plug applications.