This page lists 12 engine parts for the 2026 Kia Niro, across 2 part types, covering the 1.6L L4 ELECTRIC/GAS engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2026 Kia Niro, 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. All 12 listed parts are Oil (7 parts) and Oil Filter (5 parts).
Every part on this page is matched to the 1.6L L4 ELECTRIC/GAS — the only engine offered in the 2026 Kia Niro.
The most listed brands for 2026 Kia Niro engine parts are VALVOLINE (6 parts), MOBIL (2 parts) and WIX (2 parts), plus 2 more brands. Quality grades include Economy, High Performance / Heavy Duty and Standard Replacement.
3 parts on this 2026 Kia Niro page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including MOBIL 124321 (Oil) and WIX 51334 (Oil Filter). Click any part number to see every vehicle that part fits.
Oil
Summary: Notes list SAE 0W-16. Confirm the weight on the filler cap before you buy. Replacement brands in this table include VALVOLINE and MOBIL.
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular | 124321 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 0W-16Mobil 1 Advanced Fuel Economy | View on Amazon |
| VALVOLINE Popular | 878399 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Protection Full Synthetic SAE 0W-16Easy Pour 5 Quart | View on Amazon |
| VALVOLINE | 878400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Protection Full Synthetic SAE 0W-16Easy Pour 1 Quart | View on Amazon |
| VALVOLINE | 886758 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Protection Full Synthetic SAE 0W-165 Gallon Bay Box | View on Amazon |
| VALVOLINE | 912940 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Restore & Protect Full Synthetic SAE 0W-161 Quart | View on Amazon |
| VALVOLINE | 913002 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Restore & Protect Full Synthetic SAE 0W-165 Quart | View on Amazon |
| VALVOLINE | 913004 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Restore & Protect Full Synthetic SAE 0W-165 Gallon Bay Box | 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.
7 Oil parts are listed for the 2026 Kia Niro, from VALVOLINE and MOBIL. MOBIL 124321 carries the "Popular" badge.
This group includes MOBIL 124321, VALVOLINE 878399 and VALVOLINE 878400 and the remaining parts above.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | R1334A | 🇺🇸 US 🇨🇦 CA | Spin-On Filter | View on Amazon |
| PRO-TEC | PXL51334 | 🇺🇸 US 🇨🇦 CA | Spin-On Filter | View on Amazon |
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL | M1104A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Performance | View on Amazon |
| WIX | 51334XP | 🇺🇸 US 🇨🇦 CA | XP Extreme DutyBest for Synthetic Motor Oils | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX Popular | 51334 | 🇺🇸 US 🇨🇦 CA | Spin-On Filter | 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.
5 Oil Filter parts are listed for the 2026 Kia Niro, from WIX, FVP, PRO-TEC and 1 other brand. WIX 51334 carries the "Popular" badge.
In the Economy grade, FVP and PRO-TEC supply 2 parts: the catalog's value-priced group. A representative part number is FVP R1334A.
In the High Performance / Heavy Duty grade, MOBIL and WIX supply 2 parts: grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. A representative part number is MOBIL M1104A.
The Standard Replacement section lists 1 option from WIX — built to original-equipment specification. WIX 51334 is listed in this group.
Part numbers include WIX 51334, FVP R1334A and PRO-TEC PXL51334, among others listed above.
Buying Engine Parts for a 2026 Kia Niro
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.
- Confirm you have the 1.6L L4 ELECTRIC/GAS engine — every part on this page is matched to it.
- 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 2026 Kia Niro?
Our catalog currently lists 12 engine parts for the 2026 Kia Niro across 2 subcategories and 5 brands, covering the 1.6L L4 ELECTRIC/GAS engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 2026 Kia Niro?
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 2026 Kia Niro?
Oil rows on this page include SAE 0W-16. 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 2026 Kia Niro 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 Niro?
Every part on this page is matched to the 1.6L L4 ELECTRIC/GAS engine. 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 2026 Kia Niro
Engine Parts for Other Kia Niro 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.