Complete set of 6 OEM-spec high-performance spark plugs for BMW N55 and S55 turbocharged engines — engineered to factory specifications for reliable ignition and peak engine performance.
Features
- Complete set of 6 spark plugs (one full engine service)
- Direct OEM replacement (Part# 12120039634)
- Double platinum / iridium electrode technology for extended service life
- Designed for BMW turbocharged N55 and S55 engines — handles high cylinder pressure
- Exact fitment — no modifications required
- Recommended replacement interval: every 60,000 km for N55; 30,000 km for track use
Compatible Models
| Model | Chassis Code | Engine | Years |
|---|---|---|---|
| BMW 335i / 340i | F30 / F31 | N55 (3.0L Twin-Scroll Turbo) | 2012–2019 |
| BMW 435i / 440i | F32 / F33 / F36 | N55 (3.0L Turbo) | 2013–2020 |
| BMW M3 | F80 | S55 (3.0L Twin-Turbo M) | 2014–2018 |
| BMW M4 Coupe | F82 | S55 (3.0L Twin-Turbo M) | 2014–2020 |
| BMW M4 Convertible | F83 | S55 (3.0L Twin-Turbo M) | 2014–2020 |
| BMW M2 Competition | F87 | S55 (3.0L Twin-Turbo M) | 2018–2021 |
| BMW M5 | F10 | S63 (4.4L Twin-Turbo V8) | 2011–2017 |
Specifications
- OEM Part Number: 12120039634
- Quantity: Set of 6 plugs (complete engine service)
- Brand: Alpina Motorsports
- Condition: New
- Compatible Engines: N55, S55, S63 (BMW High Power specification)
- Electrode Type: Double Platinum / Iridium
Ships to Canada with tracking.
Yorick H. –
Good quality plugs. Correct spec for the N55 and easy to fit. Engine runs cleanly.
Werner T. –
These NGK plugs for the N55 are perfect. Engine runs smoother and throttle is crisp.
Dominic R. –
Perfect NGK plugs. Correct heat range for the N55 and engine performance is excellent.
Dean V. –
Exactly as described. Correct heat range for the N55. Easy install and engine feels great.
Xander B. –
OEM spec NGK plugs for my F30 N55. Perfect fit and the engine idle is much smoother.
Zeno R. –
These are the correct NGK plugs for the N55. Engine feels great after fitting. Very happy.
Benjamin T. –
Good plugs. Correct spec and easy to fit on the N55. Engine runs well after change.
Carl B. –
These OEM NGK plugs for my N55 are perfect. Engine runs smoother and the throttle response is crisp. Drop-in fit.
Adrian B. –
Perfect NGK plugs for my F10 N55. Engine runs very smoothly. Will definitely reorder.
Caspar H. –
Excellent plugs. OEM spec for the N55 and the engine idle is noticeably smoother.