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High performance spark plugs for Harley-Davidson 1948-1974
High performance spark plugs for Harley-Davidson 1948-1974
Usual price
9.32 €
Usual price
Sale price
9.32 €
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- High performance spark plugs for drag spects for Harley-Davidson
- Short conventional style spark plugs, available with original heat range
- Unique appearance with a black ceramic body and a logo or writing in intense red
- The insulator is made of 95% pure alumina, has strong resistance to thermal shock and higher insulation
- The design of multiple ribs from the insulator eliminates the disruptive discharge
- Nickeled housing prevents oxidation and corrosion
- Multicapa joints and thermal pressing process guarantee a hermetic and leak sealing
- The electrode with copper nucleus prevents oxidation and corrosion, has good electrical and thermal conductivity and creates a long useful life of the spark plug
- They are sold in pairs
- For models:
- Panhead 1948-1965
- SHOVELHEAD 1966-1974
- Replace H-D OEM: 3-4 and R5670-5
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