This page lists 27 ignition parts for the 2021 BMW Z4, across 4 part types, covering both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
The ignition system on the 2021 BMW Z4 delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Ignition Coil (11 parts), Camshaft Position Sensor (9 parts) and Crankshaft Position Sensor (5 parts). The other 1 part type covers the remaining 2 parts.
The 2021 BMW Z4 was sold with both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. 22 parts fit every engine; the other 5 are engine-specific. Each part shows which engine(s) it fits.
16 brands supply ignition parts for the 2021 BMW Z4, led by STANDARD MOTOR PRODUCTS (4 parts), WALKER PRODUCTS (3 parts) and DELPHI (3 parts), plus 13 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 Z4. 6 parts have it, including STANDARD MOTOR PRODUCTS PC770 (Camshaft Position Sensor) and DELPHI SS12377 (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 Fits: 3.0L L6 Turbocharged | 2CAM0303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2021 Z4 engines | PC770T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2021 Z4 engines | PC770 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Gender: Female | View on Amazon |
| WALKER PRODUCTS Popular Fits: all 2021 Z4 engines | 2351285 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor OnlyIncludes Seal | View on Amazon |
| ASTEMO / HITACHI Fits: 3.0L L6 Turbocharged | CPS0160 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HELLA Fits: all 2021 Z4 engines | 009121011 | 🇺🇸 US 🇨🇦 CA | 3-Pin ConnectorIncludes Seal | View on Amazon |
| HELLA Fits: all 2021 Z4 engines | 009168571 | 🇺🇸 US 🇨🇦 CA | 3-Pin ConnectorIncludes Seal | View on Amazon |
| ÜRO PARTS Fits: 2.0L L4 Turbocharged | 13627633958 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Fits: all 2021 Z4 engines | 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.
9 Camshaft Position Sensor parts for the 2021 BMW Z4 come from 7 brands — STANDARD MOTOR PRODUCTS, HELLA, HOLSTEIN and 4 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS PC770. 6 parts fit every engine; the other 3 are engine-specific.
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, HELLA, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 2 other brands supply 6 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.
This group includes STANDARD MOTOR PRODUCTS PC770, HOLSTEIN 2CAM0303 and STANDARD MOTOR PRODUCTS PC770T and the remaining parts above.
Crankshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: all 2021 Z4 engines | V20720204 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular Fits: all 2021 Z4 engines | SS12377 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2021 Z4 engines | PC1197 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Fits: all 2021 Z4 engines | 2351541 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor OnlyConnector Gender: Male | View on Amazon |
| WELLS Fits: 3.0L L6 Turbocharged | 5S16173 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
5 Crankshaft Position Sensor parts for the 2021 BMW Z4 come from 5 brands — VEMO, DELPHI, STANDARD MOTOR PRODUCTS and 2 other brands. The "Popular" part is DELPHI SS12377. 4 parts fit every engine; the other 1 is engine-specific.
The Economy section: 1 option from VEMO. VEMO V20720204 is listed in this group.
Standard Replacement: 4 parts, from DELPHI, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 1 other brand. A representative part number is DELPHI SS12377.
Listed part numbers: DELPHI SS12377, VEMO V20720204 and STANDARD MOTOR PRODUCTS PC1197, plus the other parts above.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRENCO Fits: all 2021 Z4 engines | 368369 | 🇺🇸 US 🇨🇦 CA | Includes 36-2176 Boot Kit | View on Amazon |
| SPECTRA PREMIUM Fits: all 2021 Z4 engines | C983 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ASTEMO / HITACHI Popular Fits: 3.0L L6 Turbocharged | IGC0189 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Coil on Plug | View on Amazon |
| DELPHI Popular Fits: all 2021 Z4 engines | GN10882 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular Fits: all 2021 Z4 engines | 0986221124 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BECK/ARNLEY Fits: all 2021 Z4 engines | 1788564 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DENSO Fits: all 2021 Z4 engines | 6739208 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Direct Ignition Coil or Coil On Plug | View on Amazon |
| NGK Fits: all 2021 Z4 engines | 49061 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2021 Z4 engines | UF750 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: all 2021 Z4 engines | COP648 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Fits: all 2021 Z4 engines | 9212347 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
11 Ignition Coil parts for the 2021 BMW Z4 come from 11 brands — PRENCO, SPECTRA PREMIUM, ASTEMO / HITACHI and 8 other brands. The "Popular" part is ASTEMO / HITACHI IGC0189. 10 parts fit every engine; the other 1 is engine-specific.
The Economy section: 2 options from PRENCO and SPECTRA PREMIUM. PRENCO 368369 is listed in this group.
In the Premium grade, ASTEMO / HITACHI and DELPHI supply 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is ASTEMO / HITACHI IGC0189.
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 Fits: all 2021 Z4 engines | 9787 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Fine Wire Double Iridium | View on Amazon |
| NGK Fits: all 2021 Z4 engines | 96206 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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 Z4, from BOSCH and NGK. All of them fit every engine offered in the 2021 Z4.
Listed part numbers: BOSCH 9787 and NGK 96206.
Buying Ignition Parts for a 2021 BMW Z4
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Some ignition parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- 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: Ignition Coil and Camshaft Position Sensor .
Frequently Asked Questions
How many ignition parts fit the 2021 BMW Z4?
Our catalog currently lists 27 ignition parts for the 2021 BMW Z4 across 4 subcategories and 16 brands, covering both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. Each part is matched to the engine(s) it fits.
Do ignition parts differ between 2021 BMW Z4 engines?
Some do. 22 parts fit every engine; the other 5 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of ignition problems on a 2021 BMW Z4?
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 Z4?
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 Z4 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 Z4?
First match the engine — each row shows which engine(s) the part fits. 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 Z4
Ignition Parts for Other BMW Z4 Years
Switch vehicle or jump to a subcategory
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.