Spark Plug Thread Adaptors 18mm down to 14mm Brass (M14 & M18)
by Unbranded
£2.99
GTIN05054716536044
EAN5054716536044
Prices updated 22 Mar 2026
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The Green Spark Plug Company
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Product Description
HT34B Pattern Spark Plugs Fittings Accessories Accessories Brass Spark Plug Thread Adaptor 18mm down to 14mm For use with long reach 14mm plugs as the seated shoulder on the adaptor raises the spark plug out of the chamber. M14 = 1.25mm pitch M18 = 1.5mm pitch
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