Spark Exhaust Copper Sealing Washer 18 × 24 mm for M18 Plug and Reducer Universal ROND18X24R
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Eighteen by twenty-four millimetres of copper. It seals two different Spark articles, which makes it the one washer worth keeping a couple of in a drawer.
Key Features
- Copper sealing washer, 18 × 24 mm.
- For Spark's M18 plug TAPPO007 and the M18 to M12 reducer SGATT260.
- Spark part number ROND18X24R.
Two Articles, One Washer
Both the plug and the reducer thread into an M18 boss, so both seal on the same face and take the same washer. If you are fitting a reducer today and might plug the boss later, one spare covers both.
Fit It Dry
No sealant, no thread compound. A copper crush washer seals by deforming against clean metal, and anything between the faces stops it doing that. Clean the boss face before the washer goes on.
One Use Each
A washer that has been crushed once has already taken the shape of that joint. Reused, it seals worse than a new one and often not at all — and finding that out means taking the plug back out of a hot exhaust.
Ordering
One per plug or reducer.
| Part number | ROND18X24R |
|---|---|
| Type | Lambda plug |
| Material | Copper |
| Fitment | Universal |
| Road approval | None — track use only |
| Size | 18 × 24 mm |
| Origin | Made in Italy |
| Manufacturer | Spark Exhaust Technology, Mantova |
| Manufacturer description | Washer for Plug Tappo007, SGATT260 |
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// Spark Exhaust
Spark Exhaust Copper Sealing Washer 18 × 24 mm for M18 Plug and Reducer Universal ROND18X24R

Tech specs
- Part number
- ROND18X24R
- Type
- Lambda plug
- Material
- Copper
- Fitment
- Universal
- Road approval
- None — track use only
- Size
- 18 × 24 mm
- Origin
- Made in Italy
- Manufacturer
- Spark Exhaust Technology, Mantova
- Manufacturer description
- Washer for Plug Tappo007, SGATT260
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
Frequently asked questions
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