Sealey Reverse Action Spark Plug Thread Chaser 12mm MS002

Specially designed to repair damaged spark plug threads on modern petrol engines. Unique design allows the tool to be passed through the plug thread into the combustion chamber, then expanded to the correct size starting on the inner, undamaged threads. Traditional thread restorers rely on luck for the restored and undamaged threads to align. The first letter(s) of a Denso, NGK and Bosch plug code is the thread size identification. For Champion brand the second letter(s) of a plug code is the thread size identification.

// Specially designed to repair damaged spark plug threads on modern petrol engines.
// Unique design allows the tool to be passed through the plug thread into the combustion chamber, then expanded to the correct size starting on the inner, undamaged threads.
// Traditional thread restorers rely on luck for the restored and undamaged threads to align.
// Size: 12mm.
// Length: 138mm.
// The first letter(s) of a Denso, NGK and Bosch plug code is the thread size identification. For Champion brand the second letter(s) of a plug code is the thread size identification.
// Model No. MS002

Free standard delivery (3–5 working days) is available on UK mainland orders of £100 or more, excluding the Scottish Highlands, which always incur a delivery charge.

Priority delivery (1–2 working days) is offered but is not guaranteed as a next-day service.

Deliveries to the Scottish Highlands will always take 3–5 working days, and certain products cannot be delivered to this location.

Tracking and notifications are provided for all orders, and any damages must be reported within 2 working days of receipt.