21 Electrical parts are listed for the 2023 Cadillac CT4, in 11 part types, covering all 3 engine options (2.0L L4 Turbocharged, 2.7L L4 Turbocharged and 3.6L V6 Turbocharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
The electrical system on the 2023 Cadillac CT4 covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. The largest groups are Battery (7 parts), Battery Cable (3 parts) and Body Control Module (BCM) (2 parts). The other 8 part types cover the remaining 9 parts.
The 2023 Cadillac CT4 was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2023 Cadillac CT4 electrical parts are GM GENUINE (13 parts), ACDELCO (2 parts) and DEKA (1 part), plus 5 more brands.
2 parts on this 2023 Cadillac CT4 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including DEKA 9A48 (Battery) and LUCAS LBAGM004A (Battery). Click any part number to see every vehicle that part fits.
Alternator / Generator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 84938163 | 🇺🇸 US 🇨🇦 CA | LABELED 84938163 | View on Amazon |
This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator.
One part is listed for the 2023 Cadillac CT4 — GM GENUINE 84938163.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: 3.6L V6 Turbocharged | 9A48 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| LUCAS Popular Fits: 3.6L V6 Turbocharged | LBAGM004A | 🇺🇸 US 🇨🇦 CA | BCI Group: 48AGM | View on Amazon |
| ACDELCO Fits: 3.6L V6 Turbocharged | 48AGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 48 | View on Amazon |
| ACDELCO Fits: 3.6L V6 Turbocharged | 48AGMHR | 🇺🇸 US 🇨🇦 CA | High ReserveAGM | View on Amazon |
| EXIDE Fits: 3.6L V6 Turbocharged | MXH6L348 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 48 (H6) | View on Amazon |
| FVP Fits: 3.6L V6 Turbocharged | P48AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 48 | View on Amazon |
| P1MAX Fits: 3.6L V6 Turbocharged | PMAGMH648 | 🇺🇸 US 🇨🇦 CA | BCI Group 48 AGM760 CCA | View on Amazon |
This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery.
7 Battery parts for the 2023 Cadillac CT4 come from 6 brands — ACDELCO, DEKA, LUCAS and 3 other brands. The "Popular" part is DEKA 9A48.
This group includes DEKA 9A48, LUCAS LBAGM004A and ACDELCO 48AGM and the remaining parts above.
Battery Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 85011509 | 🇺🇸 US 🇨🇦 CA | Positive6 speed Manual trans. | View on Amazon |
| GM GENUINE Fits: 3.6L V6 Turbocharged | 85011510 | 🇺🇸 US 🇨🇦 CA | Positive10 speed Automatic trans. | View on Amazon |
| GM GENUINE Fits: 3.6L V6 Turbocharged | 86801288 | 🇺🇸 US 🇨🇦 CA | NegativeLABELED 86801288, 84048068 | View on Amazon |
This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early.
GM GENUINE supplies the 3 Battery Cable parts for the 2023 Cadillac CT4.
Part numbers include GM GENUINE 85011509, GM GENUINE 85011510 and GM GENUINE 86801288.
Battery Current Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.6L V6 Turbocharged | BSC150 | 🇺🇸 US 🇨🇦 CA | Intelligent Battery SensorTerminal Type: Screw and Blade | View on Amazon |
This table covers the Battery Current sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
One part is listed for the 2023 Cadillac CT4 — STANDARD MOTOR PRODUCTS BSC150.
Battery Hold Down
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 11609585 | 🇺🇸 US 🇨🇦 CA | Decal or Emblem | View on Amazon |
This table covers the clamps and brackets that secure the battery.
One part is listed for the 2023 Cadillac CT4 — GM GENUINE 11609585.
Body Control Module (BCM)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 13548775 | 🇺🇸 US 🇨🇦 CA | Labeled 13548775, 13548771, 13548772, 13546978, 13546971, 13546972Except Middle East (MAM) | View on Amazon |
| GM GENUINE Fits: 3.6L V6 Turbocharged | 13548776 | 🇺🇸 US 🇨🇦 CA | Middle East (MAM) | View on Amazon |
This table covers the body-control modules that run lighting, locks and wipers.
GM GENUINE supplies both parts for the 2023 Cadillac CT4.
This group includes GM GENUINE 13548775 and GM GENUINE 13548776.
Body Control Module (BCM) Bracket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 84930206 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the brackets that mount the Body Control Module (BCM). Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners.
One part is listed for the 2023 Cadillac CT4 — GM GENUINE 84930206.
Circuit Breaker
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 84215440 | 🇺🇸 US 🇨🇦 CA | 15AMP MINI15A | View on Amazon |
This table covers the resettable circuit breakers in this vehicle's electrical system.
This group shows a single part: GM GENUINE 84215440.
Cruise Control Distance Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 86558605 | 🇺🇸 US 🇨🇦 CA | Labeled 85157018, 85164734, 85550919, 85550929, 86558605,85550930Collision Imminent Brake Assist Sensor (UGN) | View on Amazon |
This table covers the Cruise Control Distance sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
This group shows a single part: GM GENUINE 86558605.
Cruise Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 85031657 | 🇺🇸 US 🇨🇦 CA | Lane Active Safety Keep Assist(UKL)Labeled 85031657, 85031656, 85606761, 85606759 | View on Amazon |
| GM GENUINE Fits: 3.6L V6 Turbocharged | 85776845 | 🇺🇸 US 🇨🇦 CA | Lane Active Safety Keep Assist(UKL)Labeled 85776845, 85776842 | View on Amazon |
This table covers the Cruise control modules.
GM GENUINE supplies both parts for the 2023 Cadillac CT4.
Part numbers include GM GENUINE 85031657 and GM GENUINE 85776845.
Engine Control Module (ECM Computer) Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 Turbocharged | 11519377 | 🇺🇸 US 🇨🇦 CA | Fits M6X1X28, 17 ODHex HD with FL WA | View on Amazon |
This table covers the Engine Control Module (ECM Computer) bolts.
This group shows a single part: GM GENUINE 11519377.
Buying Electrical Parts for a 2023 Cadillac CT4
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Match the engine first. Every electrical 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, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Battery and Battery Cable .
Frequently Asked Questions
How many electrical parts fit the 2023 Cadillac CT4?
Our catalog currently lists 21 electrical parts for the 2023 Cadillac CT4 across 11 subcategories and 8 brands, covering all 3 engine options (2.0L L4 Turbocharged, 2.7L L4 Turbocharged and 3.6L V6 Turbocharged). Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2023 Cadillac CT4 engines?
Yes. Every electrical 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 electrical problems on a 2023 Cadillac CT4?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. 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, clean or renew the battery terminals and grounds with any charging-system repair.
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 2023 Cadillac CT4 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 2023 Cadillac CT4?
First match the engine — each row shows which engine(s) the part fits. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2023 Cadillac CT4
Electrical Parts for Other Cadillac CT4 Years
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