This page lists 20 drivetrain parts for the 2025 Alfa Romeo Giulia, across 6 part types, covering the 2.0L L4 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
The drivetrain system on the 2025 Alfa Romeo Giulia moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are CV Joint Boot (5 parts), Drive Shaft (5 parts) and Gear Oil (4 parts). The other 3 part types cover the remaining 6 parts.
The 2025 Alfa Romeo Giulia came with a single engine, the 2.0L L4 Turbocharged, and every part is verified against it.
5 brands supply drivetrain parts for the 2025 Alfa Romeo Giulia, led by MOPAR (13 parts), VALVOLINE (4 parts) and GKN (1 part), plus 2 more brands.
Each part number listed for the 2025 Alfa Romeo Giulia opens a page with every vehicle that part fits.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR | 68529610AA | 🇺🇸 US 🇨🇦 CA | Fits RightFront | View on Amazon |
| MOPAR | 68529618AA | 🇺🇸 US 🇨🇦 CA | Front LeftMair so DI Engine with Engine Stop-Start (ESS) | View on Amazon |
| MOPAR | 68757423AA | 🇺🇸 US 🇨🇦 CA | Fits Front LeftMair so DI Engine with Engine Stop-Start (ESS) | 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.
MOPAR supplies the 3 CV Axle parts for the 2025 Alfa Romeo Giulia.
This group includes MOPAR 68529610AA, MOPAR 68529618AA and MOPAR 68757423AA.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN | GKNB20592 | 🇺🇸 US 🇨🇦 CA | OUTER Diameter 0.984 InThermoplastic Elastomer | View on Amazon |
| MOPAR | 68312388AA | 🇺🇸 US 🇨🇦 CA | RearMair so DI Engine with Engine Stop-Start (ESS) | View on Amazon |
| MOPAR | 68312389AA | 🇺🇸 US 🇨🇦 CA | RearMair so DI Engine with Engine Stop-Start (ESS) | View on Amazon |
| MOPAR | 68321248AA | 🇺🇸 US 🇨🇦 CA | FrontMair so DI Engine with Engine Stop-Start (ESS) | View on Amazon |
| MOPAR | 68321279AA | 🇺🇸 US 🇨🇦 CA | Front Right & LeftMair so DI Engine with Engine Stop-Start (ESS) | 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.
5 CV Joint Boot parts are listed for the 2025 Alfa Romeo Giulia, from MOPAR and GKN.
Part numbers include GKN GKNB20592, MOPAR 68312388AA and MOPAR 68312389AA, among others listed above.
Differential Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR | 68364116AA | 🇺🇸 US 🇨🇦 CA | FrontMair so DI Engine with Engine Stop-Start (ESS) | View on Amazon |
| MOPAR | 68364119AA | 🇺🇸 US 🇨🇦 CA | FrontMair so DI Engine with Engine Stop-Start (ESS) | View on Amazon |
This table covers the seals at the Differential. 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.
2 Differential Seal parts for the 2025 Alfa Romeo Giulia come from MOPAR.
This group includes MOPAR 68364116AA and MOPAR 68364119AA.
Drive Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP | PS901909 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| MOPAR | 68490105AA | 🇺🇸 US 🇨🇦 CA | Mair so DI Engine with Engine Stop-Start (ESS)Drive Shaft, Rear | View on Amazon |
| MOPAR | 68490106AA | 🇺🇸 US 🇨🇦 CA | Mair so DI Engine with Engine Stop-Start (ESS)Drive Shaft, Rear | View on Amazon |
| MOPAR | 68518833AA | 🇺🇸 US 🇨🇦 CA | 1-Piece | View on Amazon |
| TOP NOTCH | TN10010PS | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
This table covers the driveshafts that carry torque from the transmission or transfer case.
5 Drive Shaft parts for the 2025 Alfa Romeo Giulia come from 3 brands — MOPAR, GSP and TOP NOTCH.
Part numbers include GSP PS901909, MOPAR 68490105AA and MOPAR 68490106AA, among others listed above.
Drive Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR | 68364120AA | 🇺🇸 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.
One part is listed for the 2025 Alfa Romeo Giulia — MOPAR 68364120AA.
Gear Oil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE | VV975 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE | 889785 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE | 882505 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE | 723856 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
This table covers the gear oils specified for the axle or transfer case. Typical signs include a low-oil lamp, knocking, or oil that has gone thin before the next interval. Match the viscosity and spec in the notes, not just the weight on the bottle.
VALVOLINE supplies the 4 Gear Oil parts for the 2025 Alfa Romeo Giulia.
This group includes VALVOLINE VV975, VALVOLINE 889785 and VALVOLINE 882505 and the remaining parts above.
Buying Drivetrain Parts for a 2025 Alfa Romeo Giulia
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 2.0L 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 Joint Boot and Drive Shaft .
Frequently Asked Questions
How many drivetrain parts fit the 2025 Alfa Romeo Giulia?
Our catalog currently lists 20 drivetrain parts for the 2025 Alfa Romeo Giulia across 6 subcategories and 5 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2025 Alfa Romeo Giulia?
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 2025 Alfa Romeo Giulia 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 Alfa Romeo Giulia?
Every part on this page is matched to the 2.0L 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 2025 Alfa Romeo Giulia
Drivetrain Parts for Other Alfa Romeo Giulia 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.