2019 Acura MDX Electrical Parts

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. Read more

11 Alternator / Generator parts are listed for the 2019 Acura MDX, from REMY, TERREPOWER, TYC and 6 other brands. TYC 211773 carries the "Popular" badge.

In the New grade, TYC, WAI GLOBAL, REMY and 1 other brand supply 4 parts: brand-new units rather than rebuilt ones. A representative part number is TYC 211773.

In the Remanufactured grade, DENSO, ACDELCO, BOSCH and 4 other brands supply 7 parts: factory-rebuilt units with new wear components. A representative part number is DENSO 2101204.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

4 Alternator / Generator Pulley parts for the 2019 Acura MDX come from 4 brands — ACKOJA, BANDO, CONTINENTAL and 1 other brand.

This group includes ACKOJA A26230001, BANDO 480053 and CONTINENTAL 49936 and the remaining parts above.

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. Read more

9 Battery parts for the 2019 Acura MDX come from 7 brands — DEKA, ACDELCO, LUCAS and 4 other brands. The "Popular" part is DEKA 9A48.

In the AGM (Extended Life) grade, DEKA, ACDELCO, LUCAS and 3 other brands supply 8 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 9A48.

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 FT68048.

This group includes DEKA 9A48, LUCAS LBAGM004A and ACDELCO 48AGM and the remaining parts above.

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. Read more

3 Battery Current Sensor parts are listed for the 2019 Acura MDX, from HELLA and STANDARD MOTOR PRODUCTS.

This group includes HELLA 010547761, HELLA 010547781 and STANDARD MOTOR PRODUCTS BSC140.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

This group shows a single part: BUSSMANN AMI150.

This table covers the horns mounted in the front of the vehicle. Read more

14 Horn parts for the 2019 Acura MDX come from 2 brands — FIAMM and HELLA. The "Popular" part is FIAMM 7210223. 6 parts fit every engine; the other 8 are engine-specific.

The Accessory Replacement section lists 7 options from FIAMM — grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. FIAMM 7210223 is listed in this group.

In the Standard Replacement grade, FIAMM and HELLA supply 7 parts: built to original-equipment specification. A representative part number is FIAMM 7421122.

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. Read more

4 Parking Aid Sensor parts are listed for the 2019 Acura MDX, from STANDARD MOTOR PRODUCTS and TECHPRO.

This group includes STANDARD MOTOR PRODUCTS PPS303, STANDARD MOTOR PRODUCTS PPS312 and STANDARD MOTOR PRODUCTS PPS171 and the remaining parts above.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

2 Speed Sensor parts for the 2019 Acura MDX come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

This group includes STANDARD MOTOR PRODUCTS SC770 and WELLS 5S17132.

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. Read more

9 Starter Motor parts are listed for the 2019 Acura MDX, from PURE ENERGY, FVP, REMY and 2 other brands. PURE ENERGY 19590 carries the "Popular" badge.

New: 1 part, from WAI GLOBAL. A representative part number is WAI GLOBAL 16015N.

Remanufactured: 4 parts, from PURE ENERGY, FVP, REMY and 1 other brand. A representative part number is PURE ENERGY 19590.

4 ungrouped parts are not assigned to a grade, with the same engine-level match.

Listed part numbers: PURE ENERGY 19590 and WAI GLOBAL 16015N, plus the other parts above.