Product photo to follow. Go by the part number and the fitment table below.

Electrical · NGK

NGK Spark Plug — LMAR9AI-10

£24.99

Price is per plug

NGK spark plug LMAR9AI-10 (NGK stock number 93188).

NGK's part finder lists it for the engines below, with the number of plugs each one takes. Price is per plug, so multiply by the number your engine needs.

UK DELIVERYFree over £75 · £4.99 under
RETURNS14 days · unused
CHECKOUTSecure via Stripe
Specification
BrandNGK
Part numberLMAR9AI-10
NGK stock number93188
Gap listed by NGK1.0 mm
Sold asSingle plug
Delivery & Returns

Free UK delivery on orders over £75, otherwise £4.99. We order this in from our UK supplier when you buy it, so allow extra time before it ships. Once dispatched, standard UK delivery is 3–5 working days. Orders with filters or spark plugs have a £15 minimum — anything except merch counts towards it. You have 14 days to cancel; items must come back unused and in their original packaging — see our Returns Policy.

What It Fits

Fitment is taken from the NGK UK part finder, checked 5 October 2026, for the bikes we list. Where a model came in more than one version, “Applies to” shows the version the manufacturer lists this part for — match it to your bike. Not sure? Email us before you order.

MakeModelYearsListed asYou needApplies to
KTM790 Duke2018–2023NGK recommended plug2 plugsAll versions
KTM890 Duke R2020–2024NGK recommended plug2 plugsAll versions
£24.99
Added to basket