11 Automatic transmission parts are listed for the 2026 Toyota 4RUNNER, in 1 part type, 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 2026 Toyota 4RUNNER, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Every listed part is a Transmission Fluid.
The 2026 Toyota 4RUNNER was sold with both the 2.4L L4 ELECTRIC/GAS Turbocharged and the 2.4L L4 Turbocharged. All 11 parts on this page fit every engine.
4 brands supply automatic transmission parts for the 2026 Toyota 4RUNNER, led by VALVOLINE (5 parts), LIQUI MOLY (3 parts) and PENTOSIN (2 parts), plus 1 more brand.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2026 Toyota 4RUNNER. 3 parts have it, including ACDELCO 109243 (Transmission Fluid) and VALVOLINE VV3246 (Transmission Fluid). Each part number opens a page with every vehicle that part fits.
Transmission Fluid
ATF 64
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PENTOSIN Fits: all 2026 4RUNNER engines | 1058113 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 LiterATF64 or ATF44 | View on Amazon |
| PENTOSIN Fits: all 2026 4RUNNER engines | 1058215 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 5 LitersATF64 or ATF44 | View on Amazon |
Dexron
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 2026 4RUNNER engines | 109243 | 🇺🇸 US | Container Type: Plastic Container | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2026 4RUNNER engines | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Popular Fits: all 2026 4RUNNER engines | 773775 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| LIQUI MOLY Fits: all 2026 4RUNNER engines | 20032 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18001 Liter | View on Amazon |
| LIQUI MOLY Fits: all 2026 4RUNNER engines | 22036 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18005 Liter | View on Amazon |
| LIQUI MOLY Fits: all 2026 4RUNNER engines | 20034 | 🇺🇸 US 🇨🇦 CA | Top TEC ATF 180020 Liter | View on Amazon |
| VALVOLINE Fits: all 2026 4RUNNER engines | 822389 | 🇺🇸 US 🇨🇦 CA | Import Multi-Vehicle ATF1 Quart | View on Amazon |
| VALVOLINE Fits: all 2026 4RUNNER engines | 881051 | 🇺🇸 US 🇨🇦 CA | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: all 2026 4RUNNER engines | 899179 | 🇺🇸 US 🇨🇦 CA | Extended Protection Full Synthetic ATF1 Quart | View on Amazon |
This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid.
11 Transmission Fluid parts are listed for the 2026 Toyota 4RUNNER, from VALVOLINE, LIQUI MOLY, PENTOSIN and 1 other brand. ACDELCO 109243 carries the "Popular" badge. All of them fit every engine offered in the 2026 4RUNNER.
The ATF 64 section lists 2 options from PENTOSIN — grouped under the catalog's "ATF 64" designation — the notes column spells out what sets them apart. PENTOSIN 1058113 is listed in this group.
In the Dexron grade, ACDELCO supplies 1 part: grouped under the catalog's "Dexron" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 109243.
In the Multi-Vehicle grade, VALVOLINE and LIQUI MOLY supply 7 parts: grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV3246.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Buying Automatic Transmission Parts for a 2026 Toyota 4RUNNER
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- You do not need to pick an engine: every automatic transmission part on this page fits both the 2.4L L4 ELECTRIC/GAS Turbocharged and the 2.4L L4 Turbocharged.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Transmission Fluid .
Frequently Asked Questions
How many automatic transmission parts fit the 2026 Toyota 4RUNNER?
Our catalog currently lists 11 automatic transmission parts for the 2026 Toyota 4RUNNER across 1 subcategory and 4 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 automatic transmission parts differ between 2026 Toyota 4RUNNER engines?
No. On this page every automatic transmission part fits both the 2.4L L4 ELECTRIC/GAS Turbocharged and the 2.4L L4 Turbocharged. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of automatic transmission problems on a 2026 Toyota 4RUNNER?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. 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, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
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 2026 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 2026 Toyota 4RUNNER?
Every part on this page already fits both the 2.4L L4 ELECTRIC/GAS Turbocharged and the 2.4L L4 Turbocharged. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2026 Toyota 4RUNNER
Automatic Transmission Parts for Other Toyota 4RUNNER Years
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