The 2019 Toyota Prius has 49 electrical parts with verified fitment on this page — 10 part types and 13 brands, covering the 1.8L L4 ELECTRIC/GAS engine. Each part includes a manufacturer part number and application notes.
The electrical system on the 2019 Toyota Prius covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. The largest groups are Horn (13 parts), Fuse (10 parts) and Parking Aid Sensor (10 parts). The other 7 part types cover the remaining 16 parts.
Every part on this page is matched to the 1.8L L4 ELECTRIC/GAS — the only engine offered in the 2019 Toyota Prius.
The most listed brands for 2019 Toyota Prius electrical parts are FIAMM (13 parts), STANDARD MOTOR PRODUCTS (12 parts) and BUSSMANN (10 parts), plus 10 more brands. Quality grades include Accessory Replacement, Standard Replacement and 30 Amp.
7 parts on this 2019 Toyota Prius page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including BUSSMANN ATM20LP (Fuse) and FIAMM 7210223 (Horn). Click any part number to see every vehicle that part fits.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | S6566B | 🇺🇸 US 🇨🇦 CA | AGM | View on Amazon |
| DEKA | 9A140R | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| FVP | PLN1AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 140R | View on Amazon |
| MOTORCRAFT | BAGMH4 | 🇺🇸 US 🇨🇦 CA | Tested Tough AGM or Tested Tough MAX SeriesBCI Group 140R or BCI Group: 99R | 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.
4 Battery parts for the 2019 Toyota Prius come from 4 brands — BOSCH, DEKA, FVP and 1 other brand.
Part numbers include BOSCH S6566B, DEKA 9A140R and FVP PLN1AGM, among others listed above.
Battery Air Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX | WP11025 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Battery Air filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
This group shows a single part: WIX WP11025.
Battery Cooling Fan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 76809 | 🇺🇸 US 🇨🇦 CA | Prius AWD-e | View on Amazon |
| FOUR SEASONS | 76808 | 🇺🇸 US 🇨🇦 CA | Prius Base Model | View on Amazon |
| GPD | 2312075 | 🇺🇸 US 🇨🇦 CA | Drive Motor Battery Pack Cooling Fan AssemblyUse with NiMH Battery System | View on Amazon |
This table covers the Battery Cooling fans. Typical signs include overheating at idle, a fan that never comes on, or a blade that hits the shroud. Confirm the fan command and the relay before replacing the assembly.
3 Battery Cooling Fan parts for the 2019 Toyota Prius come from 2 brands — FOUR SEASONS and GPD.
This group includes FOUR SEASONS 76809, FOUR SEASONS 76808 and GPD 2312075.
Battery Current Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 5S17121 | 🇺🇸 US 🇨🇦 CA | Prius Base Modelwith 2 Connectors | View on Amazon |
| WELLS | 5S17122 | 🇺🇸 US 🇨🇦 CA | Prius Base Modelwith 1 Connector | View on Amazon |
This table covers the Battery Current sensors. 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.
WELLS supplies both parts for the 2019 Toyota Prius.
This group includes WELLS 5S17121 and WELLS 5S17122.
Battery Terminal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 2060001 | 🇺🇸 US 🇨🇦 CA | POSITIVEFor 12 Volt Battery | View on Amazon |
| DORMAN | 926515 | 🇺🇸 US 🇨🇦 CA | Prius Base ModelPositive Terminal | View on Amazon |
| STANDARD MOTOR PRODUCTS | BP100P | 🇺🇸 US 🇨🇦 CA | Top post, straight, positive | View on Amazon |
This table covers the terminals and clamps that connect cables to the battery posts.
3 Battery Terminal parts for the 2019 Toyota Prius come from 3 brands — BECK/ARNLEY, DORMAN and STANDARD MOTOR PRODUCTS.
This group includes BECK/ARNLEY 2060001, DORMAN 926515 and STANDARD MOTOR PRODUCTS BP100P.
Cruise Control Distance Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 601743 | 🇺🇸 US 🇨🇦 CA | Prius Base Model | View on Amazon |
| WELLS | 5S17123 | 🇺🇸 US 🇨🇦 CA | Prius Base Model | View on Amazon |
This table covers the Cruise Control Distance sensors. 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.
2 Cruise Control Distance Sensor parts for the 2019 Toyota Prius come from 2 brands — DORMAN and WELLS.
Part numbers include DORMAN 601743 and WELLS 5S17123.
Fuse
10 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | ATM10LP | 🇺🇸 US 🇨🇦 CA | Blade FuseLow Profile | View on Amazon |
15 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | ATM15LP | 🇺🇸 US 🇨🇦 CA | Blade FuseLow Profile | View on Amazon |
20 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN Popular | ATM20LP | 🇺🇸 US 🇨🇦 CA | Blade FuseLow Profile | View on Amazon |
25 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | ATM25LP | 🇺🇸 US 🇨🇦 CA | Blade FuseLow Profile | View on Amazon |
30 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN Popular | FMX30LP | 🇺🇸 US 🇨🇦 CA | 30 AmpsFMX Series | View on Amazon |
| BUSSMANN | ATM30LP | 🇺🇸 US 🇨🇦 CA | Blade FuseLow Profile | View on Amazon |
5 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | ATM5LP | 🇺🇸 US 🇨🇦 CA | Blade FuseLow Profile | View on Amazon |
50 Amp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | FMX50LP | 🇺🇸 US 🇨🇦 CA | 50 AmpsFMX Series | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BUSSMANN | MPF2533X | 🇺🇸 US 🇨🇦 CA | 533 AmpsMPF multi-pole automotive fuses | View on Amazon |
| BUSSMANN | MPF2433X | 🇺🇸 US 🇨🇦 CA | MPF multi-pole automotive fuses40 / 30 / 30 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.
10 Fuse parts for the 2019 Toyota Prius come from BUSSMANN. The "Popular" part is BUSSMANN ATM20LP.
In the 10 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM10LP.
The 15 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM15LP is listed in this group.
The 20 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM20LP is listed in this group.
In the 25 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM25LP.
In the 30 Amp grade, BUSSMANN supplies 2 parts: grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMX30LP.
In the 5 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "5 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM5LP.
In the 50 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMX50LP.
2 further parts sit outside the graded sections, with the same engine-level match.
Horn
Accessory Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FIAMM Popular | 7210223 | 🇺🇸 US 🇨🇦 CA | Accessory HornFreeway Blaster | View on Amazon |
| FIAMM | 7211223 | 🇺🇸 US 🇨🇦 CA | Accessory Horn (Louder)FWY Blaster | View on Amazon |
| FIAMM | 72112 | 🇺🇸 US 🇨🇦 CA | Freeway BlasterAccessory Horn | View on Amazon |
| FIAMM | 7410024 | 🇺🇸 US 🇨🇦 CA | Accessory HornEl Grande | View on Amazon |
| FIAMM | 6602023 | 🇺🇸 US 🇨🇦 CA | Accessory HornRed | View on Amazon |
| FIAMM | 6602523 | 🇺🇸 US 🇨🇦 CA | Accessory HornChrome | View on Amazon |
| FIAMM | 6604523 | 🇺🇸 US 🇨🇦 CA | Ultimate Blast HornAccessory Horn | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FIAMM Popular | 7200223 | 🇺🇸 US 🇨🇦 CA | OE Replacement Tone2 Terminal Blade Connection (Cut off and reuse OE Connector) | View on Amazon |
| FIAMM Popular | 7201223 | 🇺🇸 US 🇨🇦 CA | OE Replacement Tone2 Terminal Connection (Cut off and reuse OE Connector) | View on Amazon |
| FIAMM | 7421122 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
| FIAMM | 7421322 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors | View on Amazon |
| FIAMM | 7250622 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
| FIAMM | 7250522 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
This table covers the horns mounted in the front of the vehicle.
13 Horn parts for the 2019 Toyota Prius come from FIAMM. The "Popular" part is FIAMM 7210223.
The Accessory Replacement section lists 7 options from FIAMM — grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. FIAMM 7210223 is listed in this group.
In the Standard Replacement grade, FIAMM supplies 6 parts: built to original-equipment specification. A representative part number is FIAMM 7200223.
Hybrid Battery Voltage Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | BSC35 | 🇺🇸 US 🇨🇦 CA | with 2 Connectors | View on Amazon |
This table covers the Hybrid Battery Voltage sensors. 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: STANDARD MOTOR PRODUCTS BSC35.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PPS166 | 🇺🇸 US 🇨🇦 CA | Fits White PearlFront Sid | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | PPS164 | 🇺🇸 US 🇨🇦 CA | Fits RearSILVER | View on Amazon |
| STANDARD MOTOR PRODUCTS | PPS217 | 🇺🇸 US 🇨🇦 CA | Fits Front InnerColor Code Midnight Black Metallic | View on Amazon |
| STANDARD MOTOR PRODUCTS | PPS218 | 🇺🇸 US 🇨🇦 CA | Fits Front OuterColor Code Midnight Black Metallic | View on Amazon |
| STANDARD MOTOR PRODUCTS | PPS169 | 🇺🇸 US 🇨🇦 CA | Gray | View on Amazon |
| STANDARD MOTOR PRODUCTS | PPS163 | 🇺🇸 US 🇨🇦 CA | White | View on Amazon |
| STANDARD MOTOR PRODUCTS | PPS165 | 🇺🇸 US 🇨🇦 CA | Gray | View on Amazon |
| STANDARD MOTOR PRODUCTS | PPS167 | 🇺🇸 US 🇨🇦 CA | Fits Front SideColor Code Super White | View on Amazon |
| STANDARD MOTOR PRODUCTS | PPS168 | 🇺🇸 US 🇨🇦 CA | Fits Rear OuterSilveror Classic Silver Metallic | View on Amazon |
| STANDARD MOTOR PRODUCTS | PPS170 | 🇺🇸 US 🇨🇦 CA | Front Inner | 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.
STANDARD MOTOR PRODUCTS supplies the 10 Parking Aid Sensor parts for the 2019 Toyota Prius. STANDARD MOTOR PRODUCTS PPS166 carries the "Popular" badge.
Buying Electrical Parts for a 2019 Toyota Prius
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 1.8L L4 ELECTRIC/GAS 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.
Frequently Asked Questions
How many electrical parts fit the 2019 Toyota Prius?
Our catalog currently lists 49 electrical parts for the 2019 Toyota Prius across 10 subcategories and 13 brands, covering the 1.8L L4 ELECTRIC/GAS engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 2019 Toyota Prius?
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 2019 Toyota Prius 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 2019 Toyota Prius?
Every part on this page is matched to the 1.8L L4 ELECTRIC/GAS 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 2019 Toyota Prius
Electrical Parts for Other Toyota Prius Years
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