The 2021 BMW 540I has 28 ignition parts with verified fitment on this page — 4 part types and 15 brands, covering the 3.0L L6 Turbocharged engine. Each part includes a manufacturer part number and application notes.
On the 2021 BMW 540I, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 26 parts of the 28 listed are Camshaft Position Sensor (10 parts), Ignition Coil (10 parts) and Crankshaft Position Sensor (6 parts). The other 1 part type covers the remaining 2 parts.
The 2021 BMW 540I came with a single engine, the 3.0L L6 Turbocharged, and every part is verified against it.
15 brands supply ignition parts for the 2021 BMW 540I, led by STANDARD MOTOR PRODUCTS (6 parts), DELPHI (4 parts) and WALKER PRODUCTS (3 parts), plus 12 more brands. Quality grades include Standard Replacement, Economy and Premium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 BMW 540I. 6 parts have it, including STANDARD MOTOR PRODUCTS PC770 (Camshaft Position Sensor) and DELPHI SS12009 (Crankshaft Position Sensor). Each part number opens a page with every vehicle that part fits.
Camshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2CAM0303 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | PC770T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PC770 | 🇺🇸 US 🇨🇦 CA | Connector Gender: Female | View on Amazon |
| WALKER PRODUCTS Popular | 2351285 | 🇺🇸 US 🇨🇦 CA | Sensor OnlyIncludes Seal | View on Amazon |
| ASTEMO / HITACHI | CPS0160 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA | 009121011 | 🇺🇸 US 🇨🇦 CA | 3-Pin ConnectorIncludes Seal | View on Amazon |
| HELLA | 009168571 | 🇺🇸 US 🇨🇦 CA | 3-Pin ConnectorIncludes Seal | View on Amazon |
| STANDARD MOTOR PRODUCTS | PC1054 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ÜRO PARTS | 13627633958 | 🇺🇸 US | 540i Base Model | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI | SS12339 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the sensors that report camshaft position to the ECU. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
10 Camshaft Position Sensor parts for the 2021 BMW 540I come from 7 brands — STANDARD MOTOR PRODUCTS, HELLA, HOLSTEIN and 4 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS PC770.
The Economy section lists 2 options from HOLSTEIN and STANDARD MOTOR PRODUCTS — the catalog's value-priced group. HOLSTEIN 2CAM0303 is listed in this group.
In the Standard Replacement grade, STANDARD MOTOR PRODUCTS, HELLA, WALKER PRODUCTS and 2 other brands supply 7 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS PC770.
1 further part sits outside the graded sections, with the same engine-level match.
Crankshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular | SS12009 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DELPHI Popular | SS12377 | 🇺🇸 US | 540i Base Model | View on Amazon |
| STANDARD MOTOR PRODUCTS | PC983 | 🇺🇸 US | 540i Base Model | View on Amazon |
| STANDARD MOTOR PRODUCTS | PC1197 | 🇺🇸 US 🇨🇦 CA | 540i xDrive | View on Amazon |
| WALKER PRODUCTS | 2352069 | 🇺🇸 US 🇨🇦 CA | Sensor OnlyConnector Gender: Female | View on Amazon |
| WELLS | 5S16173 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the sensors that report crankshaft position and engine speed. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
6 Crankshaft Position Sensor parts for the 2021 BMW 540I come from 4 brands — DELPHI, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 1 other brand. The "Popular" part is DELPHI SS12009.
Part numbers include DELPHI SS12009, DELPHI SS12377 and STANDARD MOTOR PRODUCTS PC983, among others listed above.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRENCO | 368369 | 🇺🇸 US 🇨🇦 CA | Includes 36-2176 Boot Kit | View on Amazon |
| SPECTRA PREMIUM | C983 | 🇺🇸 US 🇨🇦 CA | Ignition Coil Mounts to Cylinder Head | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular | GN10882 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular | 0986221124 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY | 1788564 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DENSO | 6739208 | 🇺🇸 US 🇨🇦 CA | Direct Ignition Coil or Coil On Plug | View on Amazon |
| NGK | 49061 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | UF750 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS | COP648 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS | 9212347 | 🇺🇸 US 🇨🇦 CA | Single Coil | View on Amazon |
This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off.
10 Ignition Coil parts for the 2021 BMW 540I come from 10 brands — PRENCO, SPECTRA PREMIUM, DELPHI and 7 other brands. The "Popular" part is DELPHI GN10882.
The Economy section: 2 options from PRENCO and SPECTRA PREMIUM. PRENCO 368369 is listed in this group.
In the Premium grade, DELPHI supplies 1 part: a step above OE specification in materials, tolerances or warranty terms. A representative part number is DELPHI GN10882.
Standard Replacement: 7 parts, from BOSCH, BECK/ARNLEY, DENSO and 4 other brands. A representative part number is BOSCH 0986221124.
Spark Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | 9787 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire Double Iridium | View on Amazon |
| NGK | 96206 | 🇺🇸 US 🇨🇦 CA | Laser Iridium High Ignitability | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
2 Spark Plug parts are listed for the 2021 BMW 540I, from BOSCH and NGK.
Part numbers include BOSCH 9787 and NGK 96206.
Buying Ignition Parts for a 2021 BMW 540I
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 3.0L L6 Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Camshaft Position Sensor and Ignition Coil .
Frequently Asked Questions
How many ignition parts fit the 2021 BMW 540I?
Our catalog currently lists 28 ignition parts for the 2021 BMW 540I across 4 subcategories and 15 brands, covering the 3.0L L6 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 2021 BMW 540I?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What spark-plug gap is listed for the 2021 BMW 540I?
Notes on this page include a 0.030" pre-set gap. Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 BMW 540I was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 BMW 540I?
Every part on this page is matched to the 3.0L L6 Turbocharged engine. Then gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 BMW 540I
Ignition Parts for Other BMW 540I Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.