This page lists 11 electrical parts for the 2012 Ram 4000, across 3 part types, covering both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
The electrical system on the 2012 Ram 4000 covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. All 11 listed parts are Alternator / Generator (5 parts), Starter Motor (5 parts) and Battery (1 part).
The 2012 Ram 4000 was sold with both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2012 Ram 4000 electrical parts are PURE ENERGY (4 parts), FVP (3 parts) and ACDELCO (2 parts), plus 2 more brands. Quality grades include Remanufactured and New.
2 parts on this 2012 Ram 4000 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ACDELCO 3342898 (Alternator / Generator) and PURE ENERGY 17948N (Starter Motor). Click any part number to see every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 5.7L V8 | 15034N | 🇲🇽 MX | New | View on Amazon |
| PURE ENERGY Fits: 5.7L V8 | 15034N | 🇲🇽 MX | 160 Amps | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 5.7L V8 | 3342898 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| FVP Fits: 5.7L V8 | 15034 | 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 5.7L V8 | 15034 | 🇲🇽 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.
5 Alternator / Generator parts are listed for the 2012 Ram 4000, from FVP, PURE ENERGY and ACDELCO. ACDELCO 3342898 carries the "Popular" badge.
In the New grade, FVP and PURE ENERGY supply 2 parts: brand-new units rather than rebuilt ones. A representative part number is FVP 15034N.
In the Remanufactured grade, ACDELCO, FVP and PURE ENERGY supply 3 parts: factory-rebuilt units with new wear components. A representative part number is ACDELCO 3342898.
This group includes ACDELCO 3342898 and FVP 15034N and the remaining parts above.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORCRAFT Fits: 5.7L V8 | BAGM65A | 🇲🇽 MX | Tested Tough AGMBCI Group 65 | 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.
This group shows a single part: MOTORCRAFT BAGM65A.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular Fits: 5.7L V8 | 17948N | 🇲🇽 MX | View on Amazon | |
| WAI GLOBAL Fits: 5.7L V8 | 17938N | 🇲🇽 MX | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 5.7L V8 | 3362185 | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| FVP Fits: 5.7L V8 | 17948 | 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 5.7L V8 | 17948 | 🇲🇽 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.
5 Starter Motor parts are listed for the 2012 Ram 4000, from PURE ENERGY, WAI GLOBAL, ACDELCO and 1 other brand. PURE ENERGY 17948N carries the "Popular" badge.
New: 2 parts, from PURE ENERGY and WAI GLOBAL. A representative part number is PURE ENERGY 17948N.
Remanufactured: 3 parts, from ACDELCO, FVP and PURE ENERGY. A representative part number is ACDELCO 3362185.
Part numbers include PURE ENERGY 17948N, WAI GLOBAL 17938N and ACDELCO 3362185, among others listed above.
Buying Electrical Parts for a 2012 Ram 4000
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: Alternator / Generator and Starter Motor .
Frequently Asked Questions
How many electrical parts fit the 2012 Ram 4000?
Our catalog currently lists 11 electrical parts for the 2012 Ram 4000 across 3 subcategories and 5 brands, covering both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2012 Ram 4000 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 2012 Ram 4000?
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 2012 Ram 4000 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 2012 Ram 4000?
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 2012 Ram 4000
Electrical Parts for Other Ram 4000 Years
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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.