2009 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

16 Alternator / Generator parts for the 2009 Acura MDX come from 10 brands — TERREPOWER, PURE ENERGY, REMY and 7 other brands. The "Popular" part is PURE ENERGY 15564N.

The New section lists 7 options from PURE ENERGY, REMY, ACDELCO and 4 other brands — brand-new units rather than rebuilt ones. PURE ENERGY 15564N is listed in this group.

The Remanufactured section lists 9 options from TERREPOWER, DENSO, FVP and 5 other brands — factory-rebuilt units with new wear components. DENSO 2100580 is listed in this group.

This table covers the bearings in the alternator housing. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

5 Alternator / Generator End Bearing parts are listed for the 2009 Acura MDX, from WJB / INMOTION PARTS, BCA, NATIONAL and 2 other brands. WJB / INMOTION PARTS RB63032RS carries the "Popular" badge.

In the Economy grade, WJB / INMOTION PARTS supplies 1 part: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS RB63032RS.

The Standard Replacement section lists 4 options from BCA, NATIONAL, SCHAEFFLER and 1 other brand — built to original-equipment specification. BCA NB303CC is listed in this group.

Listed part numbers: WJB / INMOTION PARTS RB63032RS, BCA NB303CC and NATIONAL 303CC, plus the other parts above.

This table covers the Automatic Headlamp 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

One part is listed for the 2009 Acura MDX — WELLS 5S9059.

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

6 Battery parts are listed for the 2009 Acura MDX, from DEKA, EXIDE, FULLRIVER and 1 other brand. DEKA 9A3585 carries the "Popular" badge.

Listed part numbers: DEKA 9A3585, DEKA 9A34R and DEKA 9A24F, plus the other parts above.

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. Read more

This group shows a single part: STANDARD MOTOR PRODUCTS A292TA.

This table covers the flasher units that blink the turn signals and hazards. Read more

One part is listed for the 2009 Acura MDX — TRIDON / NOVITA LM526.

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

LITTELFUSE supplies the 9 Fuse parts for the 2009 Acura MDX. LITTELFUSE MIN15 carries the "Popular" badge.

The 10 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE LMIN10 is listed in this group.

In the 15 Amp grade, LITTELFUSE supplies 2 parts: grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE MIN15.

In the 20 Amp grade, LITTELFUSE supplies 2 parts: grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE MIN20.

The 30 Amp section lists 2 options from LITTELFUSE — grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE MIN30 is listed in this group.

In the 7.5 Amp grade, LITTELFUSE supplies 2 parts: grouped under the catalog's "7.5 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE MIN75.

Part numbers include LITTELFUSE MIN15, LITTELFUSE LMIN10 and LITTELFUSE LMIN15, among others listed above.

This table covers the HID Headlamp igniters. Read more

One part is listed for the 2009 Acura MDX — DORMAN 601166.

This table covers the HID Lighting ballasts. Read more

This group shows a single part: AUTOTECNICA NI1313321.

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

FIAMM supplies the 13 Horn parts for the 2009 Acura MDX. FIAMM 7210223 carries the "Popular" badge.

In the Accessory Replacement grade, FIAMM supplies 7 parts: grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. A representative part number is FIAMM 7210223.

The Standard Replacement section: 6 options from FIAMM. FIAMM 7201223 is listed in this group.

This table covers the key fobs that lock, unlock and start the vehicle. Read more

2 Keyless Entry Remote parts for the 2009 Acura MDX come from DORMAN.

This group includes DORMAN 99072ST and DORMAN 99074ST.

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

5 Parking Aid Sensor parts for the 2009 Acura MDX come from 2 brands — WELLS and NTK.

Part numbers include NTK PA0041, WELLS 5S9341 and WELLS 5S9343, among others listed above.

This table covers the Power Door Resistance Pinch 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

2 Power Door Resistance Pinch Sensor parts for the 2009 Acura MDX come from WELLS.

This group includes WELLS 5S9380 and WELLS 5S9381.

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

11 Speed Sensor parts are listed for the 2009 Acura MDX, from BECK/ARNLEY, HOLSTEIN, FAMOUS BRAND and 6 other brands. FAMOUS BRAND SNA1117 carries the "Popular" badge.

Economy: 6 parts, from BECK/ARNLEY, HOLSTEIN, FAMOUS BRAND and 1 other brand. A representative part number is FAMOUS BRAND SNA1117.

The Standard Replacement section: 5 options from NTK, ROSTRA, DELPHI and 2 other brands. NTK AU0193 is listed in this group.

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 for the 2009 Acura MDX come from 9 brands — TYC, WAI GLOBAL, PURE ENERGY and 6 other brands. The "Popular" part is TYC 119010.

The New section: 2 options from TYC and WAI GLOBAL. TYC 119010 is listed in this group.

The Remanufactured section: 7 options from PURE ENERGY, ACDELCO, BOSCH and 4 other brands. PURE ENERGY 19010 is listed in this group.

Part numbers include TYC 119010, WAI GLOBAL 19010N and PURE ENERGY 19010, among others listed above.

This table covers the Starter solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

This group shows a single part: WELLS 1M1540.

This table covers the Yaw 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

One part is listed for the 2009 Acura MDX — STANDARD MOTOR PRODUCTS YA140.