23 Automatic transmission parts are listed for the 2026 Kia K4, in 2 part types, covering both the 1.6L L4 Turbocharged and the 2.0L L4. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2026 Kia K4, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. All 23 listed parts are Transmission Fluid (14 parts) and Transmission Fluid Additive (9 parts).
The 2026 Kia K4 was sold with both the 1.6L L4 Turbocharged and the 2.0L L4. 13 parts fit every engine; the other 10 are engine-specific. Each part shows which engine(s) it fits.
4 brands supply automatic transmission parts for the 2026 Kia K4, led by LUBEGARD (10 parts), VALVOLINE (7 parts) and LIQUI MOLY (5 parts), plus 1 more brand. Quality grades include Multi-Vehicle, CVT and SP-IV.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2026 Kia K4. 4 parts have it, including VALVOLINE VV3246 (Transmission Fluid) and LUBEGARD 19610 (Transmission Fluid Additive). Each part number opens a page with every vehicle that part fits.
Transmission Fluid
CVT
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Fits: all 2026 K4 engines | 68112 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Complete CVT Fluid32 oz | View on Amazon |
| VALVOLINE Fits: 2.0L L4 | 804751 | 🇺🇸 US 🇨🇦 CA | Full Synthetic Continuously Variable Transmission Fluid1 Quart | View on Amazon |
| VALVOLINE Fits: 2.0L L4 | 876133 | 🇺🇸 US 🇨🇦 CA | Full Synthetic Continuously Variable Transmission Fluid1 Gallon | View on Amazon |
| VALVOLINE Fits: 2.0L L4 | 881056 | 🇺🇸 US 🇨🇦 CA | Full Synthetic Continuously Variable Transmission Fluid5 Gallon Bay Box | View on Amazon |
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2026 K4 engines | VV3246 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Popular Fits: all 2026 K4 engines | 773775 | 🇺🇸 US 🇨🇦 CA | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| LIQUI MOLY Fits: 1.6L L4 Turbocharged | 20032 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18001 Liter | View on Amazon |
| LIQUI MOLY Fits: 1.6L L4 Turbocharged | 22036 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 18005 Liter | View on Amazon |
| LIQUI MOLY Fits: 1.6L L4 Turbocharged | 20034 | 🇺🇸 US 🇨🇦 CA | Top TEC ATF 180020 Liter | View on Amazon |
| LIQUI MOLY Fits: 2.0L L4 | 20036 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 14001 Liter | View on Amazon |
| LIQUI MOLY Fits: 2.0L L4 | 20121 | 🇺🇸 US 🇨🇦 CA | Top Tec ATF 140020 Liter | View on Amazon |
| VALVOLINE Fits: all 2026 K4 engines | 881051 | 🇺🇸 US 🇨🇦 CA | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
SP-IV (SP 4)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| IDEMITSU Fits: 1.6L L4 Turbocharged | 30040100750 | 🇺🇸 US | ATF Type HK41 Quart | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 1.6L L4 Turbocharged | 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.
14 Transmission Fluid parts are listed for the 2026 Kia K4, from VALVOLINE, LIQUI MOLY, LUBEGARD and 1 other brand. VALVOLINE VV3246 carries the "Popular" badge. 4 parts fit every engine; the other 10 are engine-specific.
The CVT section lists 4 options from VALVOLINE and 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 Multi-Vehicle grade, LIQUI MOLY and VALVOLINE supply 8 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.
The SP-IV (SP 4) section lists 1 option from IDEMITSU — grouped under the catalog's "SP-IV (SP 4)" designation — the notes column spells out what sets them apart. IDEMITSU 30040100750 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Transmission Fluid Additive
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LUBEGARD Popular Fits: all 2026 K4 engines | 19610 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Popular Fits: all 2026 K4 engines | 60902 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Automatic Transmission Fluid Protectant10 oz | View on Amazon |
| LUBEGARD Fits: all 2026 K4 engines | 19689 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Instant Shudder Fixx2 oz | View on Amazon |
| LUBEGARD Fits: all 2026 K4 engines | 67010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Continuously Variable Transmission Recharge & Protect10 oz | View on Amazon |
| LUBEGARD Fits: all 2026 K4 engines | 19680 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Instant Shudder Fixx2 oz, clam shell | View on Amazon |
| LUBEGARD Fits: all 2026 K4 engines | 19688 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Instant Shudder Fixx2 oz, Spanish | View on Amazon |
| LUBEGARD Fits: all 2026 K4 engines | 50902 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Automatic Transmission Fluid Protectant32 oz | View on Amazon |
| LUBEGARD Fits: all 2026 K4 engines | 50904 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Automatic Transmission Fluid Protectant5 Gallon | View on Amazon |
| LUBEGARD Fits: all 2026 K4 engines | 50905 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Automatic Transmission Fluid Protectant55 Gallon | View on Amazon |
This table covers the conditioners and additives used with this transmission fluid.
LUBEGARD supplies the 9 Transmission Fluid Additive parts for the 2026 Kia K4. LUBEGARD 19610 carries the "Popular" badge. All of them fit every engine offered in the 2026 K4.
Listed part numbers: LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689, plus the other parts above.
Buying Automatic Transmission Parts for a 2026 Kia K4
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 Fluid Additive .
Frequently Asked Questions
How many automatic transmission parts fit the 2026 Kia K4?
Our catalog currently lists 23 automatic transmission parts for the 2026 Kia K4 across 2 subcategories and 4 brands, covering both the 1.6L L4 Turbocharged and the 2.0L L4. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2026 Kia K4 engines?
Some do. 13 parts fit every engine; the other 10 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 Kia K4?
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 Kia K4 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 Kia K4?
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 Kia K4
Automatic Transmission Parts for Other Kia K4 Years
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