The 2025 Kia K4 has 54 engine parts with verified fitment on this page — 10 part types and 18 brands, covering both the 1.6L L4 Turbocharged and the 2.0L L4. Each part includes a manufacturer part number and application notes.
On the 2025 Kia K4, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. Most of the listed parts are Oil (30 parts), Oil Filter (13 parts) and Oil Drain Plug (2 parts). The other 7 part types cover the remaining 9 parts.
The 2025 Kia K4 was sold with both the 1.6L L4 Turbocharged and the 2.0L L4. 31 parts fit every engine; the other 23 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2025 Kia K4 engine parts are VALVOLINE (11 parts), LIQUI MOLY (7 parts) and MOBIL (7 parts), plus 15 more brands. Quality grades include Standard Replacement and Economy.
10 parts on this 2025 Kia K4 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including LIQUI MOLY 2208 (Oil) and PRO-TEC PXL10473 (Oil Filter). Click any part number to see every vehicle that part fits.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 1.6L L4 Turbocharged | BS40740 | 🇺🇸 US 🇨🇦 CA | Rubber | View on Amazon |
This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
One part is listed for the 2025 Kia K4 — FEL-PRO BS40740.
Harmonic Balancer
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HL MANDO Fits: 2.0L L4 | 30A5024 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | New | View on Amazon |
This table covers the crankshaft pulleys / harmonic balancers at the front of the engine.
This group shows a single part: HL MANDO 30A5024.
Oil
Summary: Notes list SAE 0W-20. Confirm the engine and the weight on the filler cap before you buy. Both engines share the same viscosity. Replacement brands in this table include VALVOLINE, LIQUI MOLY and MOBIL.
Full Synthetic
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LIQUI MOLY Popular Fits: all 2025 K4 engines | 2208 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Special Tec AA 0W-205 Liter | View on Amazon |
| LIQUI MOLY Popular Fits: all 2025 K4 engines | 20438 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molygen New Generation 0W-205 Liter | View on Amazon |
| MOBIL Popular Fits: all 2025 K4 engines | 124184 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 0W-20Mobil 1 Advanced Fuel Economy | View on Amazon |
| MOBIL Popular Fits: all 2025 K4 engines | 125197 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic 0W-20Mobil Full Synthetic | View on Amazon |
| MOBIL Popular Fits: all 2025 K4 engines | 125386 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ESP X2 0W-20ESP X2 Full Synthetic Motor Oil 0W-20, 1 Quart | View on Amazon |
| VALVOLINE Popular Fits: all 2025 K4 engines | VV916 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Protection Full Synthetic SAE 0W-201 Quart | View on Amazon |
| IDEMITSU Fits: all 2025 K4 engines | 30015203750 | 🇺🇸 US | IFG3 0W-20 SP/Motor Oil1 Quart | View on Amazon |
| IDEMITSU Fits: all 2025 K4 engines | 30016051750 | 🇺🇸 US | IFG3 0W-20 SQ/GF-7A1 Quart | View on Amazon |
| IDEMITSU Fits: all 2025 K4 engines | 30016051953 | 🇺🇸 US | IFG3 0W-20 SQ/GF-7A5 Quart | View on Amazon |
| LIQUI MOLY Fits: all 2025 K4 engines | 2207 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Special TEC AA 0W-201 Liter | View on Amazon |
| LIQUI MOLY Fits: all 2025 K4 engines | 20436 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molygen New Generation 0W-201 Liter | View on Amazon |
| LIQUI MOLY Fits: all 2025 K4 engines | 20198 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Special Tec V 0W-201 Liter | View on Amazon |
| LIQUI MOLY Fits: all 2025 K4 engines | 20200 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Special Tec V 0W-205 Liter | View on Amazon |
| LIQUI MOLY Fits: all 2025 K4 engines | 22190 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Tec 6610 0W-205 Liter | View on Amazon |
| MOBIL Fits: all 2025 K4 engines | 120926 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Performance 0W-20Mobil 1 Extended Performance | View on Amazon |
| PENTOSIN Fits: all 2025 K4 engines | 8044317 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pento Speed FESAE 0W-20 | View on Amazon |
| PENTOSIN Fits: all 2025 K4 engines | 8044319 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pento Speed FESAE 0W-20 | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 891682 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Protection Full Synthetic SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 904536 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Restore & Protect Full Synthetic SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 888048 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | European Vehicle Full Synthetic SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 904538 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Restore & Protect Full Synthetic SAE 0W-205 Quart | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 881150 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Protection Full Synthetic SAE 0W-20Easy Pour 5 Quart | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 898664 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Hybrid Vehicle Full Synthetic SAE 0W-205 Quart | View on Amazon |
High Mileage (>75,000 Miles)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Fits: all 2025 K4 engines | 125203 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic High Mileage 0W-20Mobil Full Synthetic | View on Amazon |
| MOBIL Fits: all 2025 K4 engines | 122535 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Mileage 0W-20Mobil 1 High Mileage | View on Amazon |
| MOBIL Fits: all 2025 K4 engines | 123836 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Performance High Mileage 0W-20Extended Performance High Mileage Synthetic Motor Oil 0W-20, 1 Quart | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 852400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic High Mileage with Max Life Technology SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 833002 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Life High Mileage SAE 0W-201 Quart | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 881149 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Life High Mileage SAE 0W-20Easy Pour 5 Quart | View on Amazon |
| VALVOLINE Fits: all 2025 K4 engines | 881168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic High Mileage with Max Life Technology SAE 0W-20Easy Pour 5 Quart | View on Amazon |
This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable.
30 Oil parts are listed for the 2025 Kia K4, from VALVOLINE, LIQUI MOLY, MOBIL and 2 other brands. LIQUI MOLY 2208 carries the "Popular" badge. Grades run from Full Synthetic through High Mileage (>75,000 Miles); Full Synthetic is the most populated section, led by LIQUI MOLY, VALVOLINE, MOBIL and 2 other brands.
Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 1.6L L4 Turbocharged | 090033 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | StandardM14-1.50 | View on Amazon |
| DORMAN Fits: 1.6L L4 Turbocharged | 090053 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | MetalPilot Point | View on Amazon |
This table covers the drain plugs in the oil pan.
DORMAN supplies both parts for the 2025 Kia K4.
This group includes DORMAN 090033 and DORMAN 090053.
Oil Filler Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 2.0L L4 | MO151 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cam Type: Screw -On | View on Amazon |
| MOTORAD Fits: 2.0L L4 | MO223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cam Type: Threaded | View on Amazon |
This table covers the caps on the oil filler neck.
MOTORAD supplies both parts for the 2025 Kia K4.
Listed part numbers: MOTORAD MO151 and MOTORAD MO223.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRO-TEC Popular Fits: 1.6L L4 Turbocharged | PXL10473 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| CHAMP / LUBER-FINER Fits: 1.6L L4 Turbocharged | P1083 | 🇺🇸 US 🇨🇦 CA | Anti-Drain Back Valve: No | View on Amazon |
| CHAMP / LUBER-FINER Fits: 2.0L L4 | P1099 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FVP Fits: 1.6L L4 Turbocharged | G0473 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FVP Fits: 2.0L L4 | G0521 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Original Equipment (OE) Part Number 26350-2J001 | View on Amazon |
| PRO-TEC Fits: 2.0L L4 | PXL10521 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Popular Fits: 2.0L L4 | PO99602EX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Life | View on Amazon |
| WIX Popular Fits: 1.6L L4 Turbocharged | WL10473 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WIX Popular Fits: 2.0L L4 | WL10521 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FEL-PRO Fits: 2.0L L4 | OFCS3010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Cap and Filter | View on Amazon |
| FRAM Fits: 1.6L L4 Turbocharged | CH12782 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extra GuardCartridge Filter | View on Amazon |
| HASTINGS / BALDWIN Fits: 2.0L L4 | P40163 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VARIOUS MFR Fits: 1.6L L4 Turbocharged | PO99518EX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Life | View on Amazon |
This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.
13 Oil Filter parts are listed for the 2025 Kia K4, from PRO-TEC, CHAMP / LUBER-FINER, FVP and 5 other brands. PRO-TEC PXL10473 carries the "Popular" badge.
In the Economy grade, PRO-TEC, CHAMP / LUBER-FINER and FVP supply 6 parts: the catalog's value-priced group. A representative part number is PRO-TEC PXL10473.
The Standard Replacement section lists 7 options from VARIOUS MFR, WIX, FEL-PRO and 2 other brands — built to original-equipment specification. VARIOUS MFR PO99602EX is listed in this group.
Oil Filter Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 1.6L L4 Turbocharged | MO387 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Oil Filter covers.
This group shows a single part: MOTORAD MO387.
Torque Strut Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ANCHOR Fits: all 2025 K4 engines | 10136 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Lower | View on Amazon |
This table covers the Torque Strut mounts. 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 10136.
Variable Valve Timing (VVT) Solenoid / Actuator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: 1.6L L4 Turbocharged | 2435508000 | 🇺🇸 US 🇨🇦 CA | Oil Control | View on Amazon |
| HYUNDAI Fits: 1.6L L4 Turbocharged | 243572M000 | 🇺🇸 US | Exhaust | View on Amazon |
This table covers the oil-control solenoids that command the cam phasers. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same.
HYUNDAI supplies both parts for the 2025 Kia K4.
Listed part numbers: HYUNDAI 2435508000 and HYUNDAI 243572M000.
Variable Valve Timing (VVT) Sprocket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: 1.6L L4 Turbocharged | 243502M800 | 🇺🇸 US 🇨🇦 CA | Intake | View on Amazon |
This table covers the cam phaser sprockets used by the variable-valve-timing system.
One part is listed for the 2025 Kia K4 — HYUNDAI 243502M800.
Buying Engine Parts for a 2025 Kia K4
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Match the engine first. Some engine 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 seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil and Oil Filter .
Frequently Asked Questions
How many engine parts fit the 2025 Kia K4?
Our catalog currently lists 54 engine parts for the 2025 Kia K4 across 10 subcategories and 18 brands, covering both the 1.6L L4 Turbocharged and the 2.0L L4. Each part is matched to the engine(s) it fits.
Do engine parts differ between 2025 Kia K4 engines?
Some do. 31 parts fit every engine; the other 23 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 engine problems on a 2025 Kia K4?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What oil viscosity is listed for the 2025 Kia K4?
Oil rows on this page include SAE 0W-20. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
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 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 2025 Kia K4?
First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2025 Kia K4
Engine Parts for Other Kia K4 Years
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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.