The 2020 BMW Z4 has 36 electrical parts with verified fitment on this page — 6 part types and 16 brands, covering both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2020 BMW Z4, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. Most of the listed parts are Battery (16 parts), Alternator / Generator (8 parts) and Parking Aid Sensor (6 parts). The other 3 part types cover the remaining 6 parts.
The 2020 BMW Z4 was sold with both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
16 brands supply electrical parts for the 2020 BMW Z4, led by FVP (5 parts), PURE ENERGY (4 parts) and REMY (3 parts), plus 13 more brands. Quality grades include AGM, Remanufactured and New.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 BMW Z4. 6 parts have it, including PURE ENERGY 10396 (Alternator / Generator) and DEKA 9A49 (Battery). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular Fits: 3.0L L6 Turbocharged | 10396 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Popular Fits: 3.0L L6 Turbocharged | 10397 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP Fits: 3.0L L6 Turbocharged | 10396 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP Fits: 3.0L L6 Turbocharged | 10397 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP Fits: 3.0L L6 Turbocharged | 10398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 3.0L L6 Turbocharged | 10398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY Fits: 3.0L L6 Turbocharged | 11530 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY Fits: 3.0L L6 Turbocharged | 11531 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator.
8 Alternator / Generator parts for the 2020 BMW Z4 come from 3 brands — PURE ENERGY, FVP and REMY. The "Popular" part is PURE ENERGY 10396.
This group includes PURE ENERGY 10396 and PURE ENERGY 10397 and the remaining parts above.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: 3.0L L6 Turbocharged | 9A49 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| DEKA Popular Fits: 3.0L L6 Turbocharged | 9A95R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| LUCAS Popular Fits: 3.0L L6 Turbocharged | LBAGM005A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group: 94RAGM | View on Amazon |
| LUCAS Popular Fits: 3.0L L6 Turbocharged | LBAGM007A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group: 95RAGM | View on Amazon |
| ACDELCO Fits: 3.0L L6 Turbocharged | 49AGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 49 | View on Amazon |
| ACDELCO Fits: 3.0L L6 Turbocharged | 49AGMHR | 🇺🇸 US 🇨🇦 CA | High ReserveAGM | View on Amazon |
| ACDELCO Fits: 3.0L L6 Turbocharged | 95RAGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 95R | View on Amazon |
| BOSCH Fits: 3.0L L6 Turbocharged | S6588B | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AGMAGM | View on Amazon |
| EXIDE Fits: 3.0L L6 Turbocharged | MXH8L549 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Marathon MaxBCI Group 49 (H8) | View on Amazon |
| EXIDE Fits: 3.0L L6 Turbocharged | MXH9L695R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Marathon MaxBCI Group 95R (H9) | View on Amazon |
| FVP Fits: 3.0L L6 Turbocharged | P49AGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 49 | View on Amazon |
| MOTORCRAFT Fits: 3.0L L6 Turbocharged | BAGM49H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tested Tough AGMBCI Group: 49/H8 or BCI Group 49 | View on Amazon |
| MOTORCRAFT Fits: 3.0L L6 Turbocharged | BAGM95RH9 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tested Tough AGMBCI Group 95R or BCI Group: 95R/H9 | View on Amazon |
| P1MAX Fits: 3.0L L6 Turbocharged | PMAGMH849 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 49 AGM850 CCA | View on Amazon |
| P1MAX Fits: 3.0L L6 Turbocharged | PMAGMH995R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 95R AGM950 CCA | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER Fits: 3.0L L6 Turbocharged | FT89049 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 49(Length X Width X Height) 13.9 In x 6.89 In x 7.48 In | View on Amazon |
This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery.
16 Battery parts are listed for the 2020 BMW Z4, from ACDELCO, DEKA, LUCAS and 6 other brands. DEKA 9A49 carries the "Popular" badge.
The AGM (Extended Life) section lists 15 options from ACDELCO, DEKA, LUCAS and 5 other brands — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A49 is listed in this group.
The Performance AGM (Extended Life + Increased Power) section lists 1 option from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT89049 is listed in this group.
Lighting Control Module (LCM)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MARELLI Fits: 3.0L L6 Turbocharged | LRE318 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Xenon | View on Amazon |
This table covers the modules that control the exterior lighting.
This group shows a single part: MARELLI LRE318.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Fits: 3.0L L6 Turbocharged | F00E270801 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear Outer | View on Amazon |
| BOSCH Fits: 3.0L L6 Turbocharged | F00E270805 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Outerwith Wheel Opening | View on Amazon |
| MARELLI Fits: 3.0L L6 Turbocharged | SDP008 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Right | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.0L L6 Turbocharged | PPS183 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| VEMO Fits: 3.0L L6 Turbocharged | V20720214 | 🇺🇸 US 🇨🇦 CA | Fits Front InnerM40i First Edition or sDrive M40i | View on Amazon |
| VEMO Fits: 3.0L L6 Turbocharged | V20720215 | 🇺🇸 US 🇨🇦 CA | Fits Front InnerM40i First Edition or sDrive M40i | View on Amazon |
This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
6 Parking Aid Sensor parts for the 2020 BMW Z4 come from 4 brands — BOSCH, VEMO, MARELLI and 1 other brand.
This group includes BOSCH F00E270801, BOSCH F00E270805 and MARELLI SDP008 and the remaining parts above.
Parking Aid Sensor Bracket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Fits: 3.0L L6 Turbocharged | BM1074121 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits FrontG29 | View on Amazon |
This table covers the brackets that mount the Parking Aid Sensor. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners.
This group shows a single part: VARIOUS MFR BM1074121.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Fits: 3.0L L6 Turbocharged | 31413N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 3.0L L6 Turbocharged | 12883 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 3.0L L6 Turbocharged | 12883 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY Fits: 3.0L L6 Turbocharged | 16420 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.
4 Starter Motor parts for the 2020 BMW Z4 come from 4 brands — WAI GLOBAL, FVP, PURE ENERGY and 1 other brand.
The New section lists 1 option from WAI GLOBAL — brand-new units rather than rebuilt ones. WAI GLOBAL 31413N is listed in this group.
The Remanufactured section lists 3 options from FVP, PURE ENERGY and REMY — factory-rebuilt units with new wear components. FVP 12883 is listed in this group.
Listed part numbers: WAI GLOBAL 31413N and FVP 12883, plus the other parts above.
Buying Electrical Parts for a 2020 BMW Z4
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Match the engine first. Every electrical part here is 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, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Battery and Alternator / Generator .
Frequently Asked Questions
How many electrical parts fit the 2020 BMW Z4?
Our catalog currently lists 36 electrical parts for the 2020 BMW Z4 across 6 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 electrical parts differ between 2020 BMW Z4 engines?
Yes. Every electrical part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 electrical problems on a 2020 BMW Z4?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
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 2020 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 2020 BMW Z4?
First match the engine — each row shows which engine(s) the part fits. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 BMW Z4
Electrical Parts for Other BMW Z4 Years
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