24 Electrical connector parts are listed for the 2021 Alfa Romeo Giulia, in 12 part types, covering both the 2.0L L4 Turbocharged and the 2.9L V6 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
The connector system on the 2021 Alfa Romeo Giulia supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. The largest groups are Body Wiring Harness / Connector (6 parts), Headlamp Wiring Harness / Connector (4 parts) and Transmission Shift Lever Connector (3 parts). The other 9 part types cover the remaining 11 parts.
The 2021 Alfa Romeo Giulia was sold with both the 2.0L L4 Turbocharged and the 2.9L V6 Turbocharged. 5 parts fit every engine; the other 19 are engine-specific. Each part shows which engine(s) it fits.
2 brands supply electrical connector parts for the 2021 Alfa Romeo Giulia, led by MOPAR (17 parts) and STANDARD MOTOR PRODUCTS (7 parts).
Each part number listed for the 2021 Alfa Romeo Giulia opens a page with every vehicle that part fits.
Battery Current Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2021 Giulia engines | S1686 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalBlack | View on Amazon |
This table covers the harness connectors at the Battery Current Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S1686.
Body Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 2.0L L4 Turbocharged | 68324838AA | 🇺🇸 US 🇨🇦 CA | Mair so DI Engine with Engine Stop-Start (ESS)Exc. 19 Speakers SRT High Perf Audio | View on Amazon |
| MOPAR Fits: 2.0L L4 Turbocharged | 68324839AA | 🇺🇸 US 🇨🇦 CA | Mair so DI Engine with Engine Stop-Start (ESS)Alpine Premium Audio System | View on Amazon |
| MOPAR Fits: 2.0L L4 Turbocharged | 68334271AA | 🇺🇸 US 🇨🇦 CA | RightMair so DI Engine with Engine Stop-Start (ESS) | View on Amazon |
| MOPAR Fits: 2.0L L4 Turbocharged | 68354051AA | 🇺🇸 US 🇨🇦 CA | LeftMair so DI Engine with Engine Stop-Start (ESS) | View on Amazon |
| MOPAR Fits: 2.9L V6 Turbocharged | 68334103AA | 🇺🇸 US 🇨🇦 CA | RightTwin PDI Engine with Engine Stop-Start (ESS) | View on Amazon |
| MOPAR Fits: 2.9L V6 Turbocharged | 68353931AA | 🇺🇸 US 🇨🇦 CA | LeftTwin PDI Engine with Engine Stop-Start (ESS) | View on Amazon |
This table covers the body-harness connectors and pigtails. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
MOPAR supplies the 6 Body Wiring Harness / Connector parts for the 2021 Alfa Romeo Giulia.
Listed part numbers: MOPAR 68324838AA, MOPAR 68324839AA and MOPAR 68334271AA, plus the other parts above.
Camshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S2278 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlackConnector Shape: Oval | View on Amazon |
This table covers the harness connectors at the Camshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2278.
Crankshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S2916 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Crankshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2916.
Cruise Control Distance Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2021 Giulia engines | S2863 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Cruise Control Distance Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2021 Alfa Romeo Giulia — STANDARD MOTOR PRODUCTS S2863.
Door Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2021 Giulia engines | 68333269AA | 🇺🇸 US 🇨🇦 CA | Rear Door Wiring | View on Amazon |
| MOPAR Fits: all 2021 Giulia engines | 68333448AA | 🇺🇸 US 🇨🇦 CA | Rear Door Wiring | View on Amazon |
This table covers the wiring-harness connectors at the Door. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
MOPAR supplies both parts for the 2021 Alfa Romeo Giulia. All of them fit every engine offered in the 2021 Giulia.
This group includes MOPAR 68333269AA and MOPAR 68333448AA.
Engine Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 2.9L V6 Turbocharged | 68525940AA | 🇺🇸 US 🇨🇦 CA | Twin PDI Engine with Engine Stop-Start (ESS)Sedan/Quad Cab Short Wheelbase | View on Amazon |
| MOPAR Fits: 2.9L V6 Turbocharged | 68525941AA | 🇺🇸 US 🇨🇦 CA | Twin PDI Engine with Engine Stop-Start (ESS)Sedan/Quad Cab Short Wheelbase | View on Amazon |
This table covers the wiring-harness connectors at the Engine. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
MOPAR supplies both parts for the 2021 Alfa Romeo Giulia.
This group includes MOPAR 68525940AA and MOPAR 68525941AA.
Fuel Injection Pressure Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S2511 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Oval | View on Amazon |
This table covers the harness connectors at the Fuel Injection Pressure Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2511.
Headlamp Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 2.0L L4 Turbocharged | 68324843AA | 🇺🇸 US 🇨🇦 CA | Front Fascia Wiring | View on Amazon |
| MOPAR Fits: 2.0L L4 Turbocharged | 68364190AA | 🇺🇸 US 🇨🇦 CA | Front Fascia Wiring | View on Amazon |
| MOPAR Fits: 2.9L V6 Turbocharged | 68324685AA | 🇺🇸 US 🇨🇦 CA | Front Fascia Wiring | View on Amazon |
| MOPAR Fits: 2.9L V6 Turbocharged | 68324849AA | 🇺🇸 US 🇨🇦 CA | Front Fascia Wiring | View on Amazon |
This table covers the wiring-harness connectors at the Headlamp. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
MOPAR supplies the 4 Headlamp Wiring Harness / Connector parts for the 2021 Alfa Romeo Giulia.
Part numbers include MOPAR 68324843AA, MOPAR 68364190AA and MOPAR 68324685AA, among others listed above.
Mass Air Flow (MAF) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S2507 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Mass Air Flow (MAF) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2021 Alfa Romeo Giulia — STANDARD MOTOR PRODUCTS S2507.
Oxygen (O2) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2021 Giulia engines | S1419 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalGender: Female | View on Amazon |
This table covers the harness connectors at the Oxygen (O2) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S1419.
Transmission Shift Lever Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 2.0L L4 Turbocharged | 68324832AA | 🇺🇸 US 🇨🇦 CA | Shifter Jumper Wiring | View on Amazon |
| MOPAR Fits: 2.0L L4 Turbocharged | 68701765AA | 🇺🇸 US 🇨🇦 CA | Shifter Jumper Wiring | View on Amazon |
| MOPAR Fits: 2.9L V6 Turbocharged | 68677132AA | 🇺🇸 US 🇨🇦 CA | Shifter Jumper Wiring | View on Amazon |
This table covers the harness connectors at the Transmission Shift Lever. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Transmission Shift Lever Connector parts for the 2021 Alfa Romeo Giulia come from MOPAR.
Part numbers include MOPAR 68324832AA, MOPAR 68701765AA and MOPAR 68677132AA.
Buying Electrical Connector Parts for a 2021 Alfa Romeo Giulia
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- Match the engine first. Some electrical connector 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, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Body Wiring Harness / Connector and Headlamp Wiring Harness / Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2021 Alfa Romeo Giulia?
Our catalog currently lists 24 electrical connector parts for the 2021 Alfa Romeo Giulia across 12 subcategories and 2 brands, covering both the 2.0L L4 Turbocharged and the 2.9L V6 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical connector parts differ between 2021 Alfa Romeo Giulia engines?
Some do. 5 parts fit every engine; the other 19 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 electrical connector problems on a 2021 Alfa Romeo Giulia?
Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. 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, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
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 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 2021 Alfa Romeo Giulia?
First match the engine — each row shows which engine(s) the part fits. Then match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Alfa Romeo Giulia
Electrical Connector Parts for Other Alfa Romeo Giulia Years
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