12120022902 BMW SPARK PLUG/E46/E85/E86/Z4/3 SR, Price: 40.46$, Weight: 0.037kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
BMW |
12120022902 |
SPARK PLUG/E46/E85/E86/Z4/3 SR |
22 |
0.037 |
2-3 |
40.46$ |
Substitutions
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Bosch |
0242140504
|
SPARK PLUG-BMW 3(E46)Z4(E85)
|
0 |
0.047
|
4-5
|
4.82$
|
Not Available |
Compatibility
| Body Style | Made For Region | Engine | Model | Series Code | Series Description | Steering | Diagram |
|---|---|---|---|---|---|---|---|
| Coupe | USA | S54 | BL93 | E46 | 3' E46 | Left Hand Drive | View |
| Body Style | Made For Region | Engine | Model | Series Code | Series Description | Steering | Diagram |
|---|---|---|---|---|---|---|---|
| Coupe | ECE | S54 | BL96 | E46 | 3' E46 | Right Hand Drive | View |
| Body Style | Made For Region | Engine | Model | Series Code | Series Description | Steering | Diagram |
|---|---|---|---|---|---|---|---|
| Roadster | USA | S54 | CL93 | Z3 | Z3 E36 | Left Hand Drive | View |
| Body Style | Made For Region | Engine | Model | Series Code | Series Description | Steering | Diagram |
|---|---|---|---|---|---|---|---|
| Coupe | USA | S54 | DU93 | E86 | Z4 E86 | Left Hand Drive | View |
High‑Performance Ignition Plug for BMW M Inline‑6 ⚡
Built for the legendary S54 in E46/E85/E86, this premium ignition plug delivers a strong, clean spark from cold start to redline. It restores crisp throttle response, stable idle, and full high‑rpm power while helping fuel economy and emissions. Ideal as an OEM‑grade, direct replacement for spirited driving and track days.
Why you need it ?️
Electrodes wear and the gap grows with mileage. Coils work harder, mixtures burn unevenly, and misfires start. Fresh plugs protect coils and catalytic converters, improve hot and cold starts, and keep the engine smooth and efficient.
How it works
A fine‑wire precious‑metal center electrode fires across a precisely set gap to the ground strap every combustion cycle. The ceramic insulator controls heat and prevents flashover, while the built‑in resistor cuts radio noise. The correct heat range pulls heat into the head, fighting fouling at idle and pre‑ignition at high rpm.
When it’s worn or broken ❗
Expect rough idle, hard starts, hesitation under load, higher fuel use, sulfur smell, and check‑engine P030x misfire codes. Left unchecked, it can overheat coils, damage cats, and cause detonation.
Install tips ✅
Pre‑gap about 0.8 mm; torque ~23 Nm on a cold aluminum head. Do not add anti‑seize on nickel‑plated threads. Replace every 30–60k km and inspect coil boots.
Compatibility
- M3
- Z3 M3.2
- Z4 M3.2
- M3 Csl