44 Electrical parts are listed for the 2021 Ford Transit Custom, in 3 part types, covering the 2.2L L4 DIESEL Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Ford Transit Custom, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. All 44 listed parts are Fuse (42 parts), Circuit Breaker (1 part) and Parking Aid Sensor (1 part).
The 2021 Ford Transit Custom came with a single engine, the 2.2L L4 DIESEL Turbocharged, and every part is verified against it.
2 brands supply electrical parts for the 2021 Ford Transit Custom, led by BUSSMANN (43 parts) and HELLA (1 part). Quality grades include 15 Amp, 40 Amp and 5 Amp.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Ford Transit Custom. 6 parts have it, including BUSSMANN ATC10 (Fuse) and BUSSMANN ATC15 (Fuse). Each part number opens a page with every vehicle that part fits.
Circuit Breaker
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | CB21130 | 🇲🇽 MX | 30 AmpsCB Series | View on Amazon |
This table covers the resettable circuit breakers in this vehicle's electrical system.
One part is listed for the 2021 Ford Transit Custom — BUSSMANN CB21130.
Fuse
10 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN Popular | ATC10 | 🇲🇽 MX | 10 AmpBlade Fuse | View on Amazon |
| BUSSMANN | ATC10ID | 🇲🇽 MX | 10 AmpeasyID | View on Amazon |
| BUSSMANN | ATM10LP | 🇲🇽 MX | Blade FuseLow Profile | View on Amazon |
125 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | AMI125 | 🇲🇽 MX | Stud Mount Fuse125 Amps | View on Amazon |
15 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN Popular | ATC15 | 🇲🇽 MX | 15 AmpsBlade Fuse | View on Amazon |
| BUSSMANN Popular | ATM15 | 🇲🇽 MX | 15 AmpsATM Series | View on Amazon |
| BUSSMANN | ATC15ID | 🇲🇽 MX | easyID15 Amps | View on Amazon |
| BUSSMANN | ATM15LP | 🇲🇽 MX | Blade FuseLow Profile | View on Amazon |
| BUSSMANN | ATM15ID | 🇲🇽 MX | easyID15 Amps | View on Amazon |
| BUSSMANN | FMM15 | 🇲🇽 MX | FMM Series15 Amps | View on Amazon |
150 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | AMG150 | 🇲🇽 MX | AMG SeriesStud Mount Fuse | View on Amazon |
175 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | AMG175 | 🇲🇽 MX | AMG SeriesStud Mount Fuse | View on Amazon |
20 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN Popular | ATC20 | 🇲🇽 MX | 20 AmpsBlade Fuse | View on Amazon |
| BUSSMANN Popular | ATM20LP | 🇲🇽 MX | Blade FuseLow Profile | View on Amazon |
| BUSSMANN | ATC20ID | 🇲🇽 MX | easyID20 Amps | View on Amazon |
| BUSSMANN | FMM20 | 🇲🇽 MX | 20 AmpsFMM Series | View on Amazon |
25 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | ATM25LP | 🇲🇽 MX | Blade FuseLow Profile | View on Amazon |
| BUSSMANN | FMM25 | 🇲🇽 MX | Blade Fuse25 Amps | View on Amazon |
250 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | AMG250 | 🇲🇽 MX | AMG SeriesStud Mount Fuse | View on Amazon |
30 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | ATM30LP | 🇲🇽 MX | Blade FuseLow Profile | View on Amazon |
| BUSSMANN | FMX30 | 🇲🇽 MX | FMX Series30 Amps | View on Amazon |
| BUSSMANN | FMM30 | 🇲🇽 MX | 30 AmpsFMM Series | View on Amazon |
| BUSSMANN | FMX30ID | 🇲🇽 MX | 30 AmpseasyID | View on Amazon |
300 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | AMG300 | 🇲🇽 MX | AMG SeriesStud Mount Fuse | View on Amazon |
40 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN Popular | FMX40 | 🇲🇽 MX | FMX Series40 Amp | View on Amazon |
| BUSSMANN | ATC40ID | 🇲🇽 MX | easyID40 Amp | View on Amazon |
| BUSSMANN | FMM40 | 🇲🇽 MX | 40 AmpFMM Series | View on Amazon |
| BUSSMANN | ATC40 | 🇲🇽 MX | 40 AmpBlade Fuse | View on Amazon |
| BUSSMANN | FMX40ID | 🇲🇽 MX | 40 AmpeasyID | View on Amazon |
5 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | ATC5 | 🇲🇽 MX | Blade Fuse5 Amp | View on Amazon |
| BUSSMANN | ATM5LP | 🇲🇽 MX | Blade FuseLow Profile | View on Amazon |
| BUSSMANN | ATC5ID | 🇲🇽 MX | easyIDBlade Fuse (ATC) | View on Amazon |
| BUSSMANN | ATM5 | 🇲🇽 MX | ATM Series5 Amp | View on Amazon |
| BUSSMANN | ATM5ID | 🇲🇽 MX | Mini Blade Fuse (ATM)easyID | View on Amazon |
50 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | FMX50 | 🇲🇽 MX | FMX Series50 Amps | View on Amazon |
500 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | AMG500 | 🇲🇽 MX | AMG SeriesStud Mount Fuse | View on Amazon |
60 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | FMX60 | 🇲🇽 MX | 60 AmpsFMX Series | View on Amazon |
7.5 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | ATM712LP | 🇲🇽 MX | Blade FuseLow Profile | View on Amazon |
| BUSSMANN | ATC712ID | 🇲🇽 MX | Blade Fuse (ATC)easyID | View on Amazon |
| BUSSMANN | ATM712 | 🇲🇽 MX | ATM Series7.5 Amps | View on Amazon |
| BUSSMANN | ATC712 | 🇲🇽 MX | Blade Type7.5 Amps | View on Amazon |
80 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | AMI80 | 🇲🇽 MX | Stud Mount Fuse80 Amps | View on Amazon |
This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse.
BUSSMANN supplies the 42 Fuse parts for the 2021 Ford Transit Custom. BUSSMANN ATC10 carries the "Popular" badge. 10 Amp, 125 Amp, 15 Amp, 150 Amp, 175 Amp, 20 Amp, 25 Amp, 250 Amp, 30 Amp, 300 Amp, 40 Amp, 5 Amp, 50 Amp, 500 Amp, 60 Amp, 7.5 Amp and 80 Amp are all represented, and 15 Amp alone accounts for 6 parts.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 358141471 | 🇲🇽 MX | Angled3-Pin Connector | 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.
This group shows a single part: HELLA 358141471.
Buying Electrical Parts for a 2021 Ford Transit Custom
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.
- Confirm you have the 2.2L L4 DIESEL 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, 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: Fuse and Circuit Breaker .
Frequently Asked Questions
How many electrical parts fit the 2021 Ford Transit Custom?
Our catalog currently lists 44 electrical parts for the 2021 Ford Transit Custom across 3 subcategories and 2 brands, covering the 2.2L L4 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 2021 Ford Transit Custom?
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 2021 Ford Transit Custom 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 Ford Transit Custom?
Every part on this page is matched to the 2.2L L4 DIESEL Turbocharged engine. 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 2021 Ford Transit Custom
Electrical Parts for Other Ford Transit Custom Years
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