The 2021 Mazda CX-5 has 26 electrical parts with verified fitment on this page — 4 part types and 16 brands, covering both the 2.5L L4 and the 2.5L L4 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2021 Mazda CX-5, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. 22 parts of the 26 listed are Starter Motor (11 parts), Battery (6 parts) and Parking Aid Sensor (5 parts). The other 1 part type covers the remaining 4 parts.
The 2021 Mazda CX-5 was sold with both the 2.5L L4 and the 2.5L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Mazda CX-5 electrical parts are FVP (3 parts), TERREPOWER (3 parts) and PURE ENERGY (2 parts), plus 13 more brands. Quality grades include Remanufactured, AGM and New.
6 parts on this 2021 Mazda CX-5 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including DEKA 9A3585 (Battery) and STANDARD MOTOR PRODUCTS PPS241 (Parking Aid Sensor). Click any part number to see every vehicle that part fits.
Alternator / Generator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 2.5L L4 | 11892 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 2.5L L4 | 11892 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY Fits: 2.5L L4 | 11496 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER Fits: 2.5L L4 | 42155 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | 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.
4 Alternator / Generator parts are listed for the 2021 Mazda CX-5, from FVP, PURE ENERGY, REMY and 1 other brand.
This group includes FVP 11892 and REMY 11496 and the remaining parts above.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: 2.5L L4 | 9A3585 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| FVP Popular Fits: 2.5L L4 | P35AGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 35 | View on Amazon |
| ACDELCO Fits: 2.5L L4 | 35AGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 35 | View on Amazon |
| EXIDE Fits: 2.5L L4 | MX35 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Marathon MaxBCI Group 35 | View on Amazon |
| P1MAX Fits: 2.5L L4 | PMAGM35 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 35 AGM650 CCA | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER Fits: 2.5L L4 | FT75035 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 35(Length X Width X Height) 9.45 In x 6.85 In x 8.66 In | 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.
6 Battery parts for the 2021 Mazda CX-5 come from 6 brands — DEKA, FVP, ACDELCO and 3 other brands. The "Popular" part is DEKA 9A3585.
In the AGM (Extended Life) grade, DEKA, FVP, ACDELCO and 2 other brands supply 5 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A3585.
In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 1 part: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT75035.
This group includes DEKA 9A3585, FVP P35AGM and ACDELCO 35AGM and the remaining parts above.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 2.5L L4 | PPS241 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| AUTOTECNICA Fits: 2.5L L4 | MA1321033 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear Outer | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.5L L4 | PPS240 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| TECHPRO Fits: 2.5L L4 | MA1075100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Customer Paints to Match | View on Amazon |
| TECHPRO Fits: 2.5L L4 | MA1075101 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Customer Paints to Match | View on Amazon |
This table covers the ultrasonic park-aid sensors in the bumper. 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.
5 Parking Aid Sensor parts are listed for the 2021 Mazda CX-5, from STANDARD MOTOR PRODUCTS, TECHPRO and AUTOTECNICA. STANDARD MOTOR PRODUCTS PPS241 carries the "Popular" badge.
Part numbers include STANDARD MOTOR PRODUCTS PPS241, AUTOTECNICA MA1321033 and STANDARD MOTOR PRODUCTS PPS240, among others listed above.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TYC Popular Fits: 2.5L L4 | 111713 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Auto Start/Stop | View on Amazon |
| ULTRA-POWER Popular Fits: 2.5L L4 | 111713 | 🇺🇸 US 🇨🇦 CA | Carbon Edition (Except Carbon Edition Turbo)Grand Touring (Except Grand Touring Reserve, i Grand Touring, s Grand Touring) | View on Amazon |
| BOSCH Fits: 2.5L L4 | SR4245N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| TERREPOWER Fits: 2.5L L4 | N52040 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WAI GLOBAL Fits: 2.5L L4 | 11713N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 2.5L L4 | 3362266 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| BOSCH Fits: 2.5L L4 | SR4245X | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP Fits: 2.5L L4 | 19541 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 2.5L L4 | 19541 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY Fits: 2.5L L4 | 16232 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER Fits: 2.5L L4 | 52040 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.
11 Starter Motor parts are listed for the 2021 Mazda CX-5, from BOSCH, TERREPOWER, TYC and 6 other brands. TYC 111713 carries the "Popular" badge.
In the New grade, TYC, ULTRA-POWER, BOSCH and 2 other brands supply 5 parts: brand-new units rather than rebuilt ones. A representative part number is TYC 111713.
In the Remanufactured grade, ACDELCO, BOSCH, FVP and 3 other brands supply 6 parts: factory-rebuilt units with new wear components. A representative part number is ACDELCO 3362266.
Buying Electrical Parts for a 2021 Mazda CX-5
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: Starter Motor and Battery .
Frequently Asked Questions
How many electrical parts fit the 2021 Mazda CX-5?
Our catalog currently lists 26 electrical parts for the 2021 Mazda CX-5 across 4 subcategories and 16 brands, covering both the 2.5L L4 and the 2.5L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2021 Mazda CX-5 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 2021 Mazda CX-5?
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 2021 Mazda CX-5 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 Mazda CX-5?
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 2021 Mazda CX-5
Electrical Parts for Other Mazda CX-5 Years
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