12 Automatic transmission parts are listed for the 2026 Toyota Highlander, in 2 part types, covering both the 2.4L L4 Turbocharged and the 2.5L L4 ELECTRIC/GAS. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2026 Toyota Highlander, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. All 12 listed parts are Transmission Fluid (11 parts) and Transmission Mount (1 part).
The 2026 Toyota Highlander was sold with both the 2.4L L4 Turbocharged and the 2.5L L4 ELECTRIC/GAS. 10 parts fit every engine; the other 2 are engine-specific. Each part shows which engine(s) it fits.
6 brands supply automatic transmission parts for the 2026 Toyota Highlander, led by VALVOLINE (5 parts), PENTOSIN (2 parts) and IDEMITSU (2 parts), plus 3 more brands. Quality grades include Multi-Vehicle, World Standard and CVT.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2026 Toyota Highlander. 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 Highlander engines | 1058113 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 LiterATF64 or ATF44 | View on Amazon |
| PENTOSIN Fits: all 2026 Highlander engines | 1058215 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 5 LitersATF64 or ATF44 | View on Amazon |
CVT
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Fits: 2.5L L4 ELECTRIC/GAS | 68112 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Complete CVT Fluid32 oz | View on Amazon |
Dexron
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 2026 Highlander engines | 109243 | 🇺🇸 US | Container Type: Plastic Container | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2026 Highlander engines | VV3246 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Popular Fits: all 2026 Highlander engines | 773775 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| VALVOLINE Fits: all 2026 Highlander engines | 822389 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Import Multi-Vehicle ATF1 Quart | View on Amazon |
| VALVOLINE Fits: all 2026 Highlander engines | 881051 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
World Standard (WS)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU Fits: all 2026 Highlander engines | 30040096750 | 🇺🇸 US | ATF Type TLS-LV1 Quart | View on Amazon |
| IDEMITSU Fits: all 2026 Highlander engines | 30040096953 | 🇺🇸 US | ATF Type TLS-LV5 Quart | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: all 2026 Highlander engines | 899179 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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 Highlander, from VALVOLINE, PENTOSIN, IDEMITSU and 2 other brands. ACDELCO 109243 carries the "Popular" badge. 10 parts fit every engine; the other 1 is engine-specific.
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.
The CVT section lists 1 option from LUBEGARD — grouped under the catalog's "CVT" designation — the notes column spells out what sets them apart. LUBEGARD 68112 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 supplies 4 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.
In the World Standard (WS) grade, IDEMITSU supplies 2 parts: grouped under the catalog's "World Standard (WS)" designation — the notes column spells out what sets them apart. A representative part number is IDEMITSU 30040096750.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Transmission Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: 2.4L L4 Turbocharged | 10397 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
This table covers the mounts that hold the transmission to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
This group shows a single part: ANCHOR 10397.
Buying Automatic Transmission Parts for a 2026 Toyota Highlander
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Match the engine first. Some automatic transmission 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, 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 and Transmission Mount .
Frequently Asked Questions
How many automatic transmission parts fit the 2026 Toyota Highlander?
Our catalog currently lists 12 automatic transmission parts for the 2026 Toyota Highlander across 2 subcategories and 6 brands, covering both the 2.4L L4 Turbocharged and the 2.5L L4 ELECTRIC/GAS. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2026 Toyota Highlander engines?
Some do. 10 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 automatic transmission problems on a 2026 Toyota Highlander?
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 Highlander 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 Highlander?
First match the engine — each row shows which engine(s) the part fits. 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 Highlander
Automatic Transmission Parts for Other Toyota Highlander 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.