The 2019 Cadillac CTS has 47 ignition parts with verified fitment on this page — 8 part types and 21 brands, covering all 4 engine options (2.0L L4 Turbocharged, 3.6L V6, 3.6L V6 Turbocharged and 6.2L V8 Supercharged). Each part includes a manufacturer part number and application notes.
On the 2019 Cadillac CTS, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 33 parts of the 47 listed are Ignition Coil (12 parts), Crankshaft Position Sensor (11 parts) and Camshaft Position Sensor (10 parts). The other 5 part types cover the remaining 14 parts.
The 2019 Cadillac CTS was sold with 4 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
21 brands supply ignition parts for the 2019 Cadillac CTS, led by GM GENUINE (6 parts), STANDARD MOTOR PRODUCTS (5 parts) and NGK (5 parts), plus 18 more brands. Quality grades include Standard Replacement, Economy and Iridium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2019 Cadillac CTS. 10 parts have it, including GM GENUINE 12638266 (Camshaft Position Sensor) and SHEE-MAR SM303 (Crankshaft Position Sensor). Each part number opens a page with every vehicle that part fits.
Camshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 2.0L L4 Turbocharged | 2CAM0408 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Body code AF69 | View on Amazon |
| PRENCO Fits: 2.0L L4 Turbocharged | 4E1256 | 🇺🇸 US 🇨🇦 CA | with Bolt & Sealwith Retainer | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 2.0L L4 Turbocharged | 12638266 | 🇺🇸 US 🇨🇦 CA | with Bolt, Retainer, Seal, and Sensor | View on Amazon |
| WALKER PRODUCTS Popular Fits: 2.0L L4 Turbocharged | 2351770 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Bolt, Retainer and SealSensor Only | View on Amazon |
| ASTEMO / HITACHI Fits: 2.0L L4 Turbocharged | CPS0249 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Method: 1 Bolt | View on Amazon |
| DELPHI Fits: 2.0L L4 Turbocharged | SS11963 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NTK Fits: 2.0L L4 Turbocharged | EC0217 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | PC1006 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 2.0L L4 Turbocharged | 5S13797 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 2.0L L4 Turbocharged | 962055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
10 Camshaft Position Sensor parts for the 2019 Cadillac CTS come from 10 brands — HOLSTEIN, PRENCO, GM GENUINE and 7 other brands. The "Popular" part is GM GENUINE 12638266.
The Economy section lists 2 options from HOLSTEIN and PRENCO — the catalog's value-priced group. HOLSTEIN 2CAM0408 is listed in this group.
In the Standard Replacement grade, GM GENUINE, WALKER PRODUCTS, ASTEMO / HITACHI and 4 other brands supply 7 parts: built to original-equipment specification. A representative part number is GM GENUINE 12638266.
1 further part sits outside the graded sections, with the same engine-level match.
Camshaft Position Sensor Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 12626252 | 🇺🇸 US 🇨🇦 CA | Color: Orange | View on Amazon |
This table covers the seals at the Camshaft Position Sensor. 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 2019 Cadillac CTS — GM GENUINE 12626252.
Crankshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SHEE-MAR Popular Fits: 2.0L L4 Turbocharged | SM303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DORMAN Fits: 2.0L L4 Turbocharged | 962604 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HOLSTEIN Fits: 2.0L L4 Turbocharged | 2CRK0542 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| PRENCO Fits: 2.0L L4 Turbocharged | 4D1369 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| PRENCO Fits: 2.0L L4 Turbocharged | 4D1291 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| SPECTRA PREMIUM Fits: 2.0L L4 Turbocharged | S10400 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular Fits: 2.0L L4 Turbocharged | SS12172 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular Fits: 2.0L L4 Turbocharged | PC977 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GM GENUINE Fits: 2.0L L4 Turbocharged | 12674702 | 🇺🇸 US 🇨🇦 CA | IF NEEDED CONNECTOR IS 84601390without BOLT AND RETAINER | View on Amazon |
| WALKER PRODUCTS Fits: 2.0L L4 Turbocharged | 2351769 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor OnlyIncludes Seal | View on Amazon |
| WELLS Fits: 2.0L L4 Turbocharged | 5S13805 | 🇺🇸 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.
11 Crankshaft Position Sensor parts for the 2019 Cadillac CTS come from 10 brands — PRENCO, SHEE-MAR, DORMAN and 7 other brands. The "Popular" part is SHEE-MAR SM303.
The Economy section: 6 options from PRENCO, SHEE-MAR, DORMAN and 2 other brands. SHEE-MAR SM303 is listed in this group.
Standard Replacement: 5 parts, from DELPHI, STANDARD MOTOR PRODUCTS, GM GENUINE and 2 other brands. A representative part number is DELPHI SS12172.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 2.0L L4 Turbocharged | SKUF680 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Coil on Plug | View on Amazon |
| B&B Fits: 2.0L L4 Turbocharged | BB2680 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HOLSTEIN Fits: 2.0L L4 Turbocharged | 2IGC0485 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VEMO Fits: 2.0L L4 Turbocharged | V51700006 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular Fits: 2.0L L4 Turbocharged | GN10682 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DELPHI Fits: 2.0L L4 Turbocharged | GN11170 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 2.0L L4 Turbocharged | 25202791 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NGK Fits: 2.0L L4 Turbocharged | 48889 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | UF680 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | COP597 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Fits: 2.0L L4 Turbocharged | 9212204 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Single Coil | View on Amazon |
| WELLS Fits: 2.0L L4 Turbocharged | 5C1884 | 🇺🇸 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.
12 Ignition Coil parts for the 2019 Cadillac CTS come from 11 brands — DELPHI, SKP, B&B and 8 other brands. The "Popular" part is SKP SKUF680.
The Economy section: 4 options from SKP, B&B, HOLSTEIN and 1 other brand. SKP SKUF680 is listed in this group.
In the Premium grade, DELPHI supplies 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is DELPHI GN10682.
Standard Replacement: 6 parts, from GM GENUINE, NGK, STANDARD MOTOR PRODUCTS and 3 other brands. A representative part number is GM GENUINE 25202791.
Immobilizer Antenna
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 13580790 | 🇺🇸 US 🇨🇦 CA | RR FASCIA | View on Amazon |
This table covers the Immobilizer antennas.
This group shows a single part: GM GENUINE 13580790.
Spark Plug
Summary: Notes include pre-set gaps of 0.027", 0.032", 0.035", 0.036" and 0.04". Replacement brands in this table include NGK, CHAMPION and ACDELCO.
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Fits: 2.0L L4 Turbocharged | 7004 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Double Platinum PowerPre-Set Gap: 0.04" | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular Fits: 2.0L L4 Turbocharged | 94374 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Iridium IXPre-Set Gap: 0.032" | View on Amazon |
| ACDELCO Fits: 2.0L L4 Turbocharged | 41125 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentIridium | View on Amazon |
| BOSCH Fits: 2.0L L4 Turbocharged | 96315 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Fine Wire Double IridiumPre-Set Gap: 0.027" | View on Amazon |
| CHAMPION Fits: 2.0L L4 Turbocharged | 9016 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IridiumPre-Set Gap: 0.032" | View on Amazon |
| NGK Fits: 2.0L L4 Turbocharged | 94489 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Laser IridiumPre-Set Gap: 0.032" | View on Amazon |
Platinum (lasts up to 2x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Fits: 2.0L L4 Turbocharged | 94372 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | G-PowerPre-Set Gap: 0.032" | View on Amazon |
Ruthenium (maximum durability & ignitability)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular Fits: 2.0L L4 Turbocharged | 90495 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ruthenium HX High IgnitabilityPre-Set Gap: 0.032" | 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.
8 Spark Plug parts are listed for the 2019 Cadillac CTS, from NGK, CHAMPION, ACDELCO and 1 other brand. NGK 94374 carries the "Popular" badge.
In the Double Platinum (lasts up to 3x longer than Copper / Nickel) grade, CHAMPION supplies 1 part: grouped under the catalog's "Double Platinum (lasts up to 3x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is CHAMPION 7004.
The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 5 options from NGK, ACDELCO, BOSCH and 1 other brand — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. NGK 94374 is listed in this group.
In the Platinum (lasts up to 2x longer than Copper / Nickel) grade, NGK supplies 1 part: grouped under the catalog's "Platinum (lasts up to 2x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is NGK 94372.
In the Ruthenium (maximum durability & ignitability) grade, NGK supplies 1 part: grouped under the catalog's "Ruthenium (maximum durability & ignitability)" designation — the notes column spells out what sets them apart. A representative part number is NGK 90495.
Listed part numbers: NGK 94374, CHAMPION 7004 and ACDELCO 41125, plus the other parts above.
Spark Plug / Ignition Coil Boot
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | 20951 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Federal Wire | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | SPP190E | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the silicone and rubber boots that insulate the coil-to-plug spark path. Typical signs include a misfire in the rain, carbon tracking on the boot, or a snap when you pop the coil off. Replace boots as a set on a high-mileage engine; one cracked boot will take the coil with it.
2 Spark Plug / Ignition Coil Boot parts for the 2019 Cadillac CTS come from STANDARD MOTOR PRODUCTS.
The Economy section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS 20951 is listed in this group.
Standard Replacement: 1 part, from STANDARD MOTOR PRODUCTS. A representative part number is STANDARD MOTOR PRODUCTS SPP190E.
This group includes STANDARD MOTOR PRODUCTS 20951 and STANDARD MOTOR PRODUCTS SPP190E.
Spark Plug Tube Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 2.0L L4 Turbocharged | 12613249 | 🇺🇸 US 🇨🇦 CA | Material: Steel Rubber | View on Amazon |
| MAHLE / CLEVITE Fits: 2.0L L4 Turbocharged | GS34108 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Spark Plug Tube Seal KitMolded Rubber | View on Amazon |
This table covers the seals at the Spark Plug Tube. 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 Spark Plug Tube Seal parts for the 2019 Cadillac CTS come from 2 brands — GM GENUINE and MAHLE / CLEVITE.
Part numbers include GM GENUINE 12613249 and MAHLE / CLEVITE GS34108.
Buying Ignition Parts for a 2019 Cadillac CTS
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 2019 Cadillac CTS?
Our catalog currently lists 47 ignition parts for the 2019 Cadillac CTS across 8 subcategories and 21 brands, covering all 4 engine options (2.0L L4 Turbocharged, 3.6L V6, 3.6L V6 Turbocharged and 6.2L V8 Supercharged). Each part is matched to the engine(s) it fits.
Do ignition parts differ between 2019 Cadillac CTS 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 2019 Cadillac CTS?
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 2019 Cadillac CTS?
Notes on this page include pre-set gaps of 0.027", 0.032", 0.035", 0.036" and 0.04". 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 2019 Cadillac CTS 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 2019 Cadillac CTS?
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 2019 Cadillac CTS
Ignition Parts for Other Cadillac CTS Years
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