The 2021 Kia Niro has 8 drivetrain parts with verified fitment on this page — 2 part types and 4 brands, covering both the 1.6L L4 ELECTRIC/GAS and the ELECTRIC. Each part includes a manufacturer part number and application notes.
On the 2021 Kia Niro, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. All 8 listed parts are CV Axle (5 parts) and CV Intermediate Shaft (3 parts).
The 2021 Kia Niro was sold with both the 1.6L L4 ELECTRIC/GAS and the ELECTRIC. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
4 brands supply drivetrain parts for the 2021 Kia Niro, led by GSP (3 parts), APWI (2 parts) and TOP NOTCH (2 parts), plus 1 more brand.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Kia Niro. 1 part has it: APWI KA8054 (CV Axle). Each part number opens a page with every vehicle that part fits.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APWI Popular Fits: 1.6L L4 ELECTRIC/GAS | KA8054 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| APWI Fits: 1.6L L4 ELECTRIC/GAS | KA8055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| GSP Fits: 1.6L L4 ELECTRIC/GAS | NCV75083 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front RightEX Model or EX Premium or L Model or LX Model or LXS Model or SX Touring or Touring or Touring Special Edition | View on Amazon |
| GSP Fits: 1.6L L4 ELECTRIC/GAS | NCV75082 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| TOP NOTCH Fits: 1.6L L4 ELECTRIC/GAS | TN60178 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
This table covers the complete CV axle shafts from differential (or hub) to wheel. Typical signs include a click in tight turns, grease flung around the wheel well, or a vibration that builds with speed. A torn boot caught early is a boot kit; caught late it is the whole axle. Torque the axle nut to the method in the notes.
5 CV Axle parts are listed for the 2021 Kia Niro, from APWI, GSP and TOP NOTCH. APWI KA8054 carries the "Popular" badge.
This group includes APWI KA8054, APWI KA8055 and GSP NCV75083 and the remaining parts above.
CV Intermediate Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP Fits: 1.6L L4 ELECTRIC/GAS | NEX37000 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| TOP NOTCH Fits: 1.6L L4 ELECTRIC/GAS | TN60198IS | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| TRAKMOTIVE Fits: 1.6L L4 ELECTRIC/GAS | KA3529 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
This table covers the CV Intermediate shafts.
3 CV Intermediate Shaft parts for the 2021 Kia Niro come from 3 brands — GSP, TOP NOTCH and TRAKMOTIVE.
Part numbers include GSP NEX37000, TOP NOTCH TN60198IS and TRAKMOTIVE KA3529.
Buying Drivetrain Parts for a 2021 Kia Niro
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Match the engine first. Every drivetrain part here is 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 differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: CV Axle and CV Intermediate Shaft .
Frequently Asked Questions
How many drivetrain parts fit the 2021 Kia Niro?
Our catalog currently lists 8 drivetrain parts for the 2021 Kia Niro across 2 subcategories and 4 brands, covering both the 1.6L L4 ELECTRIC/GAS and the ELECTRIC. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2021 Kia Niro engines?
Yes. Every drivetrain part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 drivetrain problems on a 2021 Kia Niro?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. 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 differential or transfer-case fluid with any axle or seal job while everything is already open.
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 2021 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 2021 Kia Niro?
First match the engine — each row shows which engine(s) the part fits. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Kia Niro
Drivetrain 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.