12 Ignition parts are listed for the 2018 Alfa Romeo Giulia, in 5 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 ignition system on the 2018 Alfa Romeo Giulia delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Ignition Coil (4 parts), Crankshaft Position Sensor (3 parts) and Spark Plug (2 parts). The other 2 part types cover the remaining 3 parts.
The 2018 Alfa Romeo Giulia was sold with both the 2.0L L4 Turbocharged and the 2.9L V6 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2018 Alfa Romeo Giulia ignition parts are MOPAR (6 parts), WELLS (2 parts) and WALKER PRODUCTS (1 part), plus 3 more brands.
Each part number listed for the 2018 Alfa Romeo Giulia opens a page with every vehicle that part fits.
Camshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 2.9L V6 Turbocharged | 68311580AA | 🇺🇸 US 🇨🇦 CA | Twin Engine with Engine Stop-Start (ESS)Sedan/Quad Cab Short Wheelbase | View on Amazon |
This table covers the sensors that report camshaft position to the ECU. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
One part is listed for the 2018 Alfa Romeo Giulia — MOPAR 68311580AA.
Crankshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 2.9L V6 Turbocharged | 68631760AA | 🇺🇸 US 🇨🇦 CA | Twin Engine with Engine Stop-Start (ESS)Sedan/Quad Cab Short Wheelbase | View on Amazon |
| WALKER PRODUCTS Fits: 2.9L V6 Turbocharged | 2351906 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| WELLS Fits: 2.9L V6 Turbocharged | 5S17635 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the sensors that report crankshaft position and engine speed. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
3 Crankshaft Position Sensor parts are listed for the 2018 Alfa Romeo Giulia, from MOPAR, WALKER PRODUCTS and WELLS.
Listed part numbers: MOPAR 68631760AA, WALKER PRODUCTS 2351906 and WELLS 5S17635.
Ignition Coil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Fits: 2.9L V6 Turbocharged | 0986221153 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| MOPAR Fits: 2.9L V6 Turbocharged | 68337595AA | 🇺🇸 US 🇨🇦 CA | Twin Engine with Engine Stop-Start (ESS)Sedan/Quad Cab Short Wheelbase | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 2.9L V6 Turbocharged | COP717 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 2.9L V6 Turbocharged | 5C2278 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off.
4 Ignition Coil parts are listed for the 2018 Alfa Romeo Giulia, from BOSCH, MOPAR, UNITED MOTOR PRODUCTS and 1 other brand.
This group includes BOSCH 0986221153, MOPAR 68337595AA and UNITED MOTOR PRODUCTS COP717 and the remaining parts above.
Spark Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 2.9L V6 Turbocharged | 68316113AA | 🇺🇸 US 🇨🇦 CA | Twin Engine with Engine Stop-Start (ESS)Sedan/Quad Cab Short Wheelbase | View on Amazon |
| NGK Fits: 2.9L V6 Turbocharged | 96748 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Laser Platinum | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
2 Spark Plug parts for the 2018 Alfa Romeo Giulia come from 2 brands — MOPAR and NGK.
Part numbers include MOPAR 68316113AA and NGK 96748.
Spark Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 2.9L V6 Turbocharged | 68332646AA | 🇺🇸 US 🇨🇦 CA | Spark Plug Well Gasket | View on Amazon |
| MOPAR Fits: 2.9L V6 Turbocharged | 68405429AA | 🇺🇸 US 🇨🇦 CA | Spark Plug Well Gasket | View on Amazon |
This table covers the gaskets that seal the Spark Plug. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
MOPAR supplies both parts for the 2018 Alfa Romeo Giulia.
This group includes MOPAR 68332646AA and MOPAR 68405429AA.
Buying Ignition Parts for a 2018 Alfa Romeo Giulia
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Every ignition 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 plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Ignition Coil and Crankshaft Position Sensor .
Frequently Asked Questions
How many ignition parts fit the 2018 Alfa Romeo Giulia?
Our catalog currently lists 12 ignition parts for the 2018 Alfa Romeo Giulia across 5 subcategories and 6 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 ignition parts differ between 2018 Alfa Romeo Giulia engines?
Yes. Every ignition 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 ignition problems on a 2018 Alfa Romeo Giulia?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What spark-plug gap is listed for the 2018 Alfa Romeo Giulia?
Notes on this page include a 0.028" pre-set gap. Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
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 2018 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 2018 Alfa Romeo Giulia?
First match the engine — each row shows which engine(s) the part fits. Then gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Alfa Romeo Giulia
Ignition Parts for Other Alfa Romeo Giulia Years
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