7 Electrical parts are listed for the 2025 Toyota 4RUNNER, in 3 part types, covering both the 2.4L L4 ELECTRIC/GAS Turbocharged and the 2.4L L4 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2025 Toyota 4RUNNER, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. All 7 listed parts are Battery (4 parts), Alternator / Generator Pulley (2 parts) and Starter Motor (1 part).
The 2025 Toyota 4RUNNER was sold with both the 2.4L L4 ELECTRIC/GAS Turbocharged and the 2.4L L4 Turbocharged. 5 parts fit every engine; the other 2 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2025 Toyota 4RUNNER electrical parts are DEKA (3 parts), BANDO (1 part) and LITENS (1 part), plus 2 more brands.
Each part number listed for the 2025 Toyota 4RUNNER opens a page with every vehicle that part fits.
Alternator / Generator Pulley
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BANDO Fits: 2.4L L4 Turbocharged | 480124 | 🇺🇸 US 🇨🇦 CA | Original Equipment Manufacturer | View on Amazon |
| LITENS Fits: 2.4L L4 Turbocharged | 920167A | 🇺🇸 US 🇨🇦 CA | with TRD, Limited, Tow Packagewithout Hybrid | View on Amazon |
This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt.
2 Alternator / Generator Pulley parts for the 2025 Toyota 4RUNNER come from 2 brands — BANDO and LITENS.
Listed part numbers: BANDO 480124 and LITENS 920167A.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Fits: all 2025 4RUNNER engines | 9A3585 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| DEKA Fits: all 2025 4RUNNER engines | 9A34R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| DEKA Fits: all 2025 4RUNNER engines | 9A24F | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| FVP Fits: all 2025 4RUNNER engines | P48AGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 48 | 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 2025 Toyota 4RUNNER come from 2 brands — DEKA and FVP. Every part fits both the 2.4L L4 ELECTRIC/GAS Turbocharged and the 2.4L L4 Turbocharged.
Part numbers include DEKA 9A3585, DEKA 9A34R and DEKA 9A24F, among others listed above.
Starter Motor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALEO Fits: all 2025 4RUNNER engines | 849506 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
One part is listed for the 2025 Toyota 4RUNNER — VALEO 849506.
Buying Electrical Parts for a 2025 Toyota 4RUNNER
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. Some electrical 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, 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 Pulley .
Frequently Asked Questions
How many electrical parts fit the 2025 Toyota 4RUNNER?
Our catalog currently lists 7 electrical parts for the 2025 Toyota 4RUNNER across 3 subcategories and 5 brands, covering both the 2.4L L4 ELECTRIC/GAS Turbocharged and the 2.4L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2025 Toyota 4RUNNER engines?
Some do. 5 parts fit every engine; the other 2 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 electrical problems on a 2025 Toyota 4RUNNER?
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 2025 Toyota 4RUNNER 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 2025 Toyota 4RUNNER?
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 2025 Toyota 4RUNNER
Electrical Parts for Other Toyota 4RUNNER 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.