Genuine BMW MINI B38 B46 B48 B58 High Power Spark Plug
Restore crisp throttle response, smooth idle and dependable ignition with this Genuine BMW MINI high power spark plug for B38, B46, B48 and B58 petrol engines. If you are chasing misfires, hesitation or a rough idle on your turbocharged BMW or MINI, fresh OEM spark plugs are a proven fix that brings back lost power and confidence. Ideal maintenance for daily driven and enthusiast cars alike, and a perfect match for 116i, 118i, 120i, 125i, 218i, 220i, 230i, 318i, 320i, 330i, 340i, 418i, 420i, 430i, 440i, 520i, 530i, 540i, 630i, 640i, 730i, 740e and 740i models.
Search terms our customers use to find this part include: Genuine BMW spark plug, MINI spark plug, B58 spark plug, B48 spark plug, B46 spark plug, B38 spark plug, BMW 320i spark plug, BMW 530i spark plug, BMW 740i spark plug, BMW ignition plug, OEM sparkplug, high power spark plug for BMW, turbo BMW spark plug, MINI Cooper S B48 spark plug. If you are looking for reliability, factory quality and perfect fitment, this is the plug you want.
Key benefits
- Genuine BMW part for perfect fit, correct heat range and long service life
- Optimised spark under boost for B38, B46, B48 and B58 turbocharged engines
- Helps cure misfires and rough running caused by worn plugs
- Restores consistent power delivery and smooth idle
- OEM quality you can trust on the road and on track
What is included
- 1 x Genuine BMW spark plug
Recommended maintenance
We highly recommend replacing all spark plugs at the same time for balanced performance across all cylinders. Always install with the correct torque and follow BMW service procedures.
Compatibility
Fits BMW and MINI models equipped with B38, B46, B48 and B58 petrol engines, including but not limited to:
- BMW 1 Series F20 F21 LCI 116i, 118i, 120i, 125i, M140i, M140ix
- BMW 2 Series F22 F23 and LCI 218i, 220i, 230i, 230ix, M240i, M240ix
- BMW 2 Series Active Tourer F45 and Gran Tourer F46 216i, 218i, 220i, 225i, 225ix, 225xe
- BMW 3 Series F30 F31 F34 LCI 318i, 320i, 320ix, 330i, 330ix, 330e, 340i, 340ix
- BMW 3 Series G20 320i 1.6
- BMW 4 Series F32 F33 F36 and LCI 418i, 420i, 420ix, 430i, 430ix, 440i, 440ix
- BMW 5 Series G30 G31 520i, 530e, 530ex, 530i, 530ix, 540i, 540ix
- BMW 6 Series G32 GT 630i, 640i, 640ix
- BMW 7 Series G11 G12 730i, 740e, 740ex, 740i, 740ix, 740Le, 740Lex, 740Li, 740Lix
- BMW X1 F48 18i, 20i, 20ix, 25ix, 28i, 28ix
- BMW X2 F39 18i, 20i, 25ix, 28i, 28ix
- BMW X3 G01 20i, 20ix, 30i, 30ix, M40ix
- BMW X4 G02 20ix, 30ix, M40ix
- MINI F54 Clubman, F55 5 Door, F56 3 Door, F57 Convertible, F60 Countryman Cooper, Cooper S, JCW and selected One models with B38 or B48 engines
Headline searches: BMW 116i spark plug, BMW 320i spark plug, BMW 530i spark plug, BMW 740i spark plug, MINI Cooper S B48 spark plug, BMW B58 spark plugs, BMW B48 spark plugs, Genuine BMW ignition plug 12120040551.
Part number
BMW part number 12120040551
Manufactured by
BMW
Fitting and support
Professional fitting available at Nforcd in Warwickshire. To book or request a quote email Sales@nforcd.com. Our customers consistently report smoother running and zero misfires after replacing tired plugs with these genuine high power items.
Compatibility check
We will verify compatibility before dispatch. Provide your UK registration or the last 7 digits of your VIN at checkout to ensure you receive the correct spark plugs for your BMW or MINI.
Warranty
Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers when a VIN is provided at checkout on compatible vehicles.