This page lists 10 drivetrain parts for the 2021 Fiat 500X, across 3 part types, covering the 1.3L L4 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 Fiat 500X, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. All 10 listed parts are CV Axle (4 parts), CV Joint Boot (4 parts) and Drive Shaft Seal (2 parts).
The 2021 Fiat 500X came with a single engine, the 1.3L L4 Turbocharged, and every part is verified against it.
4 brands supply drivetrain parts for the 2021 Fiat 500X, led by MOPAR (6 parts), GKN (2 parts) and GSP (1 part), plus 1 more brand.
Each part number listed for the 2021 Fiat 500X opens a page with every vehicle that part fits.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP | NCV76003 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| MOPAR | 68410245AA | 🇺🇸 US 🇨🇦 CA | FrontInline Multi Air DI Engine. with Start Stop | View on Amazon |
| MOPAR | 68246628AA | 🇺🇸 US 🇨🇦 CA | RearInline Multi Air DI Engine. with Start Stop | View on Amazon |
| TOP NOTCH | TN30171 | 🇺🇸 US 🇨🇦 CA | Rear | 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.
4 CV Axle parts are listed for the 2021 Fiat 500X, from MOPAR, GSP and TOP NOTCH.
Part numbers include GSP NCV76003, MOPAR 68410245AA and MOPAR 68246628AA, among others listed above.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN | 306478 | 🇺🇸 US 🇨🇦 CA | OUTER Diameter 1.102 InThermoplastic Elastomer | View on Amazon |
| GKN | 306697 | 🇺🇸 US 🇨🇦 CA | OUTER Diameter 1.102 InThermoplastic Elastomer | View on Amazon |
| MOPAR | 68275021AA | 🇺🇸 US 🇨🇦 CA | Fits RearInline Multi Air DI Engine. with Start Stop | View on Amazon |
| MOPAR | 68275232AA | 🇺🇸 US 🇨🇦 CA | Fits RearInline Multi Air DI Engine. with Start Stop | View on Amazon |
This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn.
4 CV Joint Boot parts are listed for the 2021 Fiat 500X, from GKN and MOPAR.
This group includes GKN 306478, GKN 306697 and MOPAR 68275021AA and the remaining parts above.
Drive Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR | 4736843AA | 🇺🇸 US 🇨🇦 CA | Axle Drive Shaft Seal | View on Amazon |
| MOPAR | 68337528AA | 🇺🇸 US 🇨🇦 CA | Axle Drive Shaft Seal | View on Amazon |
This table covers the seals at the Drive Shaft. 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.
MOPAR supplies both parts for the 2021 Fiat 500X.
Part numbers include MOPAR 4736843AA and MOPAR 68337528AA.
Buying Drivetrain Parts for a 2021 Fiat 500X
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Confirm you have the 1.3L L4 Turbocharged 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 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 Joint Boot .
Frequently Asked Questions
How many drivetrain parts fit the 2021 Fiat 500X?
Our catalog currently lists 10 drivetrain parts for the 2021 Fiat 500X across 3 subcategories and 4 brands, covering the 1.3L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2021 Fiat 500X?
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 Fiat 500X 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 Fiat 500X?
Every part on this page is matched to the 1.3L L4 Turbocharged engine. 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 Fiat 500X
Drivetrain Parts for Other Fiat 500X 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.