49 Electrical parts are listed for the 2005 Acura MDX, in 9 part types, covering the 3.5L V6 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2005 Acura MDX, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. Most of the listed parts are Alternator / Generator (14 parts), Horn (13 parts) and Battery (6 parts). The other 6 part types cover the remaining 16 parts.
The 2005 Acura MDX came with a single engine, the 3.5L V6, and every part is verified against it.
24 brands supply electrical parts for the 2005 Acura MDX, led by FIAMM (13 parts), DEKA (5 parts) and WELLS (3 parts), plus 21 more brands. Quality grades include Standard Replacement, Remanufactured and Accessory Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2005 Acura MDX. 10 parts have it, including REMY 94790 (Alternator / Generator) and WJB / INMOTION PARTS RB63032RS (Alternator / Generator End Bearing). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REMY Popular | 94790 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 130 Amps | View on Amazon |
| TYC Popular | 211151 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 130 Amps | View on Amazon |
| ACDELCO | 3351295 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| TERREPOWER | N11150 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 130 Amps | View on Amazon |
| ULTRA-POWER | 211151 | 🇺🇸 US 🇨🇦 CA | Sport Utility | View on Amazon |
| WAI GLOBAL | 11151N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 130 Amps | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO Popular | 2100580 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Reman | View on Amazon |
| ACDELCO | 3342661 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| BOSCH | AL1297X | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP | 11099 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY | 11099 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY | 12723 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER | 11150 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| WAI GLOBAL | 11151R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Power Select Reman | 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.
14 Alternator / Generator parts for the 2005 Acura MDX come from 10 brands — REMY, ACDELCO, TERREPOWER and 7 other brands. The "Popular" part is REMY 94790.
The New section lists 6 options from REMY, TYC, ACDELCO and 3 other brands — brand-new units rather than rebuilt ones. REMY 94790 is listed in this group.
The Remanufactured section lists 8 options from DENSO, ACDELCO, BOSCH and 5 other brands — factory-rebuilt units with new wear components. DENSO 2100580 is listed in this group.
Alternator / Generator End Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular | RB63032RS | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Mitsubishi AlternatorDrive End | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB303CC | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Mitsubishi AlternatorDrive End | View on Amazon |
| NATIONAL | 303CC | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Mitsubishi AlternatorDrive End | View on Amazon |
| SCHAEFFLER | 63032RSRC3 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front14 MM Width | View on Amazon |
| SKF | 63032RSJ | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Drive End | View on Amazon |
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.
5 Alternator / Generator End Bearing parts are listed for the 2005 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.
Automatic Headlamp Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 5S14706 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Brown | View on Amazon |
| WELLS | 5S14707 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
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.
WELLS supplies both parts for the 2005 Acura MDX.
This group includes WELLS 5S14706 and WELLS 5S14707.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular | 9A3585 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| DEKA Popular | 9A34R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| DEKA | 9A24F | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| EXIDE | MX24F | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Marathon MaxBCI Group 24F | View on Amazon |
| FULLRIVER | FT84024F | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 24F(Length X Width X Height) 10.87 In x 6.77 In x 8.95 In | View on Amazon |
| FVP | P24RAGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 24 | 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 are listed for the 2005 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.
Battery Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | A292TA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | NegativeBATTERY TO GROUND | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS A292TA.
Battery Terminal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA | 00350 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Post Terminal | View on Amazon |
| DEKA | 01056 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Post Terminal Lead Free | View on Amazon |
This table covers the terminals and clamps that connect cables to the battery posts.
DEKA supplies both parts for the 2005 Acura MDX.
This group includes DEKA 00350 and DEKA 01056.
Flasher
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular | 1R1453 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
| HOLSTEIN | 2RSW0030 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Hazard Warning & Turn Signalor 4 Way FlasherHazard Warning | View on Amazon |
| STANDARD MOTOR PRODUCTS | EFL8T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
| STANDARD MOTOR PRODUCTS | EFL8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 12AMounting Bracket(s) Included: No | View on Amazon |
| TRIDON / NOVITA | EP34 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Electronic Flasher | View on Amazon |
This table covers the flasher units that blink the turn signals and hazards.
5 Flasher parts are listed for the 2005 Acura MDX, from STANDARD MOTOR PRODUCTS, WELLS, HOLSTEIN and 1 other brand. WELLS 1R1453 carries the "Popular" badge.
This group includes WELLS 1R1453, HOLSTEIN 2RSW0030 and STANDARD MOTOR PRODUCTS EFL8T and the remaining parts above.
Horn
Accessory Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FIAMM Popular | 7210223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Accessory HornFreeway Blaster | View on Amazon |
| FIAMM | 7211223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Accessory Horn (Louder)FWY Blaster | View on Amazon |
| FIAMM | 72112 | 🇺🇸 US 🇨🇦 CA | Freeway BlasterAccessory Horn | View on Amazon |
| FIAMM | 7410024 | 🇺🇸 US 🇨🇦 CA | Accessory HornEl Grande | View on Amazon |
| FIAMM | 6602023 | 🇺🇸 US 🇨🇦 CA | Accessory HornRed | View on Amazon |
| FIAMM | 6602523 | 🇺🇸 US 🇨🇦 CA | Accessory HornChrome | View on Amazon |
| FIAMM | 6604523 | 🇺🇸 US 🇨🇦 CA | Ultimate Blast HornAccessory Horn | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FIAMM Popular | 7201223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Replacement Tone2 Terminal Connection (Cut off and reuse OE Connector) | View on Amazon |
| FIAMM Popular | 7200223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Replacement Tone2 Terminal Blade Connection (Cut off and reuse OE Connector) | View on Amazon |
| FIAMM | 7421122 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
| FIAMM | 7421322 | 🇺🇸 US 🇨🇦 CA | OE Replacement Horn KitIncludes OE Connectors | View on Amazon |
| FIAMM | 7250622 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
| FIAMM | 7250522 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Replacement Horn KitIncludes OE Connectors & L Bracket | View on Amazon |
This table covers the horns mounted in the front of the vehicle.
FIAMM supplies the 13 Horn parts for the 2005 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.
Keyless Entry Remote
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 99374 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 3 Buttonwithout Memory | View on Amazon |
This table covers the key fobs that lock, unlock and start the vehicle.
This group shows a single part: DORMAN 99374.
Buying Electrical Parts for a 2005 Acura MDX
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.
- Confirm you have the 3.5L V6 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, 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: Alternator / Generator and Horn .
Frequently Asked Questions
How many electrical parts fit the 2005 Acura MDX?
Our catalog currently lists 49 electrical parts for the 2005 Acura MDX across 9 subcategories and 24 brands, covering the 3.5L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 2005 Acura MDX?
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 2005 Acura MDX 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 2005 Acura MDX?
Every part on this page is matched to the 3.5L V6 engine. 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 2005 Acura MDX
Electrical Parts for Other Acura MDX Years
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