23 Electrical connector parts are listed for the 2019 Mazda CX-3, in 16 part types, covering the 2.0L L4 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2019 Mazda CX-3, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. Most of the listed parts are A/C Refrigerant Pressure Switch Connector (3 parts), Temperature Sender / Sensor Connector (3 parts) and Parking Brake Actuator Connector (2 parts). The other 13 part types cover the remaining 15 parts.
The 2019 Mazda CX-3 came with a single engine, the 2.0L L4, and every part is verified against it.
6 brands supply electrical connector parts for the 2019 Mazda CX-3, led by STANDARD MOTOR PRODUCTS (14 parts), UNITED MOTOR PRODUCTS (3 parts) and METRA (3 parts), plus 3 more brands.
Each part number listed for the 2019 Mazda CX-3 opens a page with every vehicle that part fits.
A/C Refrigerant Pressure Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 37276 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 3 Terminal FemaleRectangular Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS | S2458 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalWire Gauge (GA): 18, 20 | View on Amazon |
| UNITED MOTOR PRODUCTS | CON205 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the A/C Refrigerant Pressure Switch. 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 A/C Refrigerant Pressure Switch Connector parts are listed for the 2019 Mazda CX-3, from FOUR SEASONS, STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS.
This group includes FOUR SEASONS 37276, STANDARD MOTOR PRODUCTS S2458 and UNITED MOTOR PRODUCTS CON205.
Accelerator Pedal Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2815 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Automatic trans. | View on Amazon |
This table covers the harness connectors at the Accelerator Pedal 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 S2815.
Blower Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S3204 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Blower Motor. 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 S3204.
Brake Light Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2410 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: RectangleNumber of Splice Connectors Included: 4 | View on Amazon |
This table covers the harness connectors at the Brake Light Switch. 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 2019 Mazda CX-3 — STANDARD MOTOR PRODUCTS S2410.
Fuel Injector Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2544 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Harness Lengthinches: 13 | View on Amazon |
This table covers the harness connectors at the Fuel Injector. 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 S2544.
Fuel Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2328 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular, OvalTerminal Quantity: 2 | View on Amazon |
This table covers the harness connectors at the Fuel Pump. 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 S2328.
Ignition Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S3128 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Ignition Coil. 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 S3128.
Knock / Detonation Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2885 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
This table covers the harness connectors at the Knock / Detonation 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 S2885.
Manifold Pressure (MAP) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2894 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Manifold Pressure (MAP) 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 S2894.
Park Assist (PAS) Camera Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| METRA | AXACMZ2 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Camera Add-On Package | View on Amazon |
This table covers the harness connectors at the Park Assist (PAS) Camera. 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 2019 Mazda CX-3 — METRA AXACMZ2.
Parking Brake Actuator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2534 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangle | View on Amazon |
| UNITED MOTOR PRODUCTS | CON212 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Wheel Parking Brake | View on Amazon |
This table covers the harness connectors at the Parking Brake Actuator. 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.
2 Parking Brake Actuator Connector parts for the 2019 Mazda CX-3 come from 2 brands — STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS.
This group includes STANDARD MOTOR PRODUCTS S2534 and UNITED MOTOR PRODUCTS CON212.
Radiator Fan Resistor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S3314 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with 3 Blade Terminals | View on Amazon |
This table covers the harness connectors at the Radiator Fan Resistor. 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 S3314.
Radio Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| METRA | AXBUCSMZ286V | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Steering Wheel Control Harness | View on Amazon |
| METRA | AXMAZ28SWC6V | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | SWC And Camera Retention | View on Amazon |
This table covers the harness connectors at the Radio. 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.
METRA supplies both parts for the 2019 Mazda CX-3.
This group includes METRA AXBUCSMZ286V and METRA AXMAZ28SWC6V.
Temperature Sender / Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4665 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS | S2034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS | CON57 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Temperature Sender / 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.
3 Temperature Sender / Sensor Connector parts for the 2019 Mazda CX-3 come from 2 brands — STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS.
This group includes STANDARD MOTOR PRODUCTS HP4665, STANDARD MOTOR PRODUCTS S2034 and UNITED MOTOR PRODUCTS CON57.
Trailer Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT | 56300 | 🇺🇸 US 🇨🇦 CA | Custom Wiring Harness4-Way Flat | View on Amazon |
| TEKONSHA | 118718 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-One Connector Assemblywith Upgraded Circuit Protected Modu Lite HD Module | View on Amazon |
This table covers the trailer-lighting connectors at the hitch. 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.
2 Trailer Connector parts are listed for the 2019 Mazda CX-3, from CURT and TEKONSHA.
Part numbers include CURT 56300 and TEKONSHA 118718.
Variable Valve Timing (VVT) Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2173 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Number of Splice Connectors Included: 2 | View on Amazon |
This table covers the harness connectors at the Variable Valve Timing (VVT) Solenoid. 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 S2173.
Buying Electrical Connector Parts for a 2019 Mazda CX-3
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- Confirm you have the 2.0L L4 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, 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: A/C Refrigerant Pressure Switch Connector and Temperature Sender / Sensor Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2019 Mazda CX-3?
Our catalog currently lists 23 electrical connector parts for the 2019 Mazda CX-3 across 16 subcategories and 6 brands, covering the 2.0L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical connector problems on a 2019 Mazda CX-3?
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 2019 Mazda CX-3 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 Mazda CX-3?
Every part on this page is matched to the 2.0L L4 engine. 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 2019 Mazda CX-3
Electrical Connector Parts for Other Mazda CX-3 Years
Switch vehicle or jump to a subcategory
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.