Porsche 911 F Spark plugs
911 (F-series) · 1964–1973 · Engine · #23 most-needed for this chassis
OEM part number
99917016590 Spark Plug · source: fcpeuro.comOE number as printed on the cited source. Numbers can vary by model year and market; confirm by VIN.
Why owners need it
Forum/vendor consensus that this is a routine wear/failure item on the chassis family (retailer chassis landing pages & kit pages list it as a core maintenance/repair item).
Typical price seen: $5-$15 (USD, from research 2026-10-12; varies by brand and condition).
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Searches for “Porsche 911 F Spark plugs”. Results are the vendor's own and may include parts that don't fit; check fitment.
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Clutch kit (disc, pressure plate, release bearing)Clutch slave & master cylinderInner/outer tie rodsSway bar end links & bushingsChain tensioners (upgrade to pressure-fed)Weber/Solex/MFI fuel system rebuildFuchs wheel restorationEngine/transmission mountsHeater boxes / heat exchangersShocks/strutsStrut / shock mountsBall joints