This page lists 47 belt drive parts for the 2012 Ram 4500, across 5 part types, covering the 6.7L L6 DIESEL Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2012 Ram 4500, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys. 43 parts of the 47 listed are Belt (21 parts), Belt Tensioner (15 parts) and Idler Pulley (7 parts). The other 2 part types cover the remaining 4 parts.
The 2012 Ram 4500 came with a single engine, the 6.7L L6 DIESEL Turbocharged, and every part is verified against it.
14 brands supply belt drive parts for the 2012 Ram 4500, led by DAYCO (9 parts), GATES (8 parts) and ACDELCO (7 parts), plus 11 more brands. Quality grades include Standard Replacement, Economy and Kit.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2012 Ram 4500. 10 parts have it, including ACDELCO K081264HD (Belt) and SKP SK89362 (Belt Tensioner). Each part number opens a page with every vehicle that part fits.
Belt
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CADNA | 1102K8 | 🇺🇸 US 🇨🇦 CA | Multi-V | View on Amazon |
| DAYCO | 5081260DR | 🇺🇸 US 🇨🇦 CA | Drive Rite®Serpentine | View on Amazon |
| FVP | 1102K8 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| FVP | 1264K8 | 🇺🇸 US 🇨🇦 CA | Multi V-Belt Reinforced BeltSerpentine | View on Amazon |
| GATES | K081102 | 🇺🇸 US 🇨🇦 CA | Micro-V | View on Amazon |
| ROADMAX | 8K1264AP | 🇺🇸 US 🇨🇦 CA | V-RibbedSerpentine | View on Amazon |
| SKP | SK081264HD | 🇺🇸 US 🇨🇦 CA | SerpentineHeavy Duty | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | K081264HD | 🇺🇸 US 🇨🇦 CA | Professional / GoldHeavy Duty | View on Amazon |
| GATES Popular | K081264HD | 🇺🇸 US 🇨🇦 CA | Fleet Runner Heavy Duty Micro-V | View on Amazon |
| ACDELCO | K081102HD | 🇺🇸 US 🇨🇦 CA | Professional / GoldHeavy Duty | View on Amazon |
| GATES | K081102HD | 🇺🇸 US 🇨🇦 CA | Fleet Runner Heavy Duty Micro-V | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 8K1264 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| BANDO Popular | 8PK3210 | 🇺🇸 US 🇨🇦 CA | V-RibbedRib Quantity: 8 | View on Amazon |
| DAYCO Popular | 5081260 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| ACDELCO | 8K1102 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| BANDO | 8PK2800 | 🇺🇸 US 🇨🇦 CA | V-RibbedRib Quantity: 8 | View on Amazon |
| CONTINENTAL | 4081102 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| CONTINENTAL | 4081265F | 🇺🇸 US 🇨🇦 CA | Multi V-Belt Reinforced BeltSerpentine | View on Amazon |
| DAYCO | 5081103 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| GATES | K081264 | 🇺🇸 US 🇨🇦 CA | Micro-V | View on Amazon |
| MOPAR | 53041138AE | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine.with A/C or Air Cond ATC | View on Amazon |
This table covers the serpentine and accessory belts that drive the front accessories. Typical signs include squeal on cold start, cracks across the ribs, or glazing on the back of the belt. A new belt on a worn tensioner will squeal within weeks — spin the idlers by hand while the belt is off.
21 Belt parts for the 2012 Ram 4500 come from 10 brands — GATES, ACDELCO, DAYCO and 7 other brands. The "Popular" part is ACDELCO K081264HD.
The Economy section lists 7 options from FVP, CADNA, DAYCO and 3 other brands — the catalog's value-priced group. CADNA 1102K8 is listed in this group.
In the Heavy Duty grade, ACDELCO and GATES supply 4 parts: rated for severe service. A representative part number is ACDELCO K081264HD.
In the Standard Replacement grade, ACDELCO, BANDO, DAYCO and 3 other brands supply 10 parts: built to original-equipment specification. A representative part number is ACDELCO 8K1264.
Belt Tensioner
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular | SK89362 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DORMAN | 419039 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 90K38285 | 🇺🇸 US 🇨🇦 CA | Heavy DutyKit | View on Amazon |
| ACDELCO | ACK081264HD | 🇺🇸 US 🇨🇦 CA | Professional / GoldKit | View on Amazon |
| CLOYES | B40212 | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
| DAYCO | 5081260K1 | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
| DAYCO | KIT885BCK | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
| DAYCO | KIT891BCK | 🇺🇸 US 🇨🇦 CA | Kit | View on Amazon |
| GATES | ACK081264HD | 🇺🇸 US | Accessory Belt Drive Kit | View on Amazon |
| ULTRA-POWER | 90K38285 | 🇺🇸 US 🇨🇦 CA | (Heavy Duty)with A/C | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 38285 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ACDELCO | 38285 | 🇺🇸 US 🇨🇦 CA | Professional / Gold | View on Amazon |
| CONTINENTAL | 49544 | 🇺🇸 US 🇨🇦 CA | Multi-V or Smooth Pulley | View on Amazon |
| DAYCO | 89362 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| LITENS | 910032A | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the automatic tensioners that hold belt tension. Typical signs include belt flutter, a chirp that returns after a new belt, or a damper that no longer holds the arm. Replace the tensioner with the belt at higher mileage; the labor overlaps almost entirely.
15 Belt Tensioner parts are listed for the 2012 Ram 4500, from DAYCO, GATES, ACDELCO and 6 other brands. SKP SK89362 carries the "Popular" badge.
Economy: 2 parts, from SKP and DORMAN. A representative part number is SKP SK89362.
In the Kit grade, DAYCO, GATES, ACDELCO and 2 other brands supply 8 parts: grouped under the catalog's "Kit" designation — the notes column spells out what sets them apart. A representative part number is GATES 90K38285.
The Standard Replacement section: 5 options from GATES, ACDELCO, CONTINENTAL and 2 other brands. GATES 38285 is listed in this group.
Idler Pulley
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular | SK89168 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| DORMAN | 419685 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 36315 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| ACDELCO | 36315 | 🇺🇸 US 🇨🇦 CA | Professional / GoldGrooved | View on Amazon |
| CONTINENTAL | 49172 | 🇺🇸 US 🇨🇦 CA | Grooved, Includes HardwareMulti-V | View on Amazon |
| DAYCO | 89168 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| LITENS | 900365A | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
This table covers the idler pulleys the belt wraps around. Typical signs include a chirp that follows engine speed, or a pulley that feels rough or has play. Replace a noisy idler with the belt — the labor is already paid for.
7 Idler Pulley parts for the 2012 Ram 4500 come from 7 brands — SKP, DORMAN, GATES and 4 other brands. The "Popular" part is SKP SK89168.
The Economy section: 2 options from SKP and DORMAN. SKP SK89168 is listed in this group.
Standard Replacement: 5 parts, from GATES, ACDELCO, CONTINENTAL and 2 other brands. A representative part number is GATES 36315.
Part numbers include SKP SK89168, DORMAN 419685 and GATES 36315, among others listed above.
Idler Pulley Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR | 4429639 | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine.50 State Emissions | View on Amazon |
This table covers the Idler Pulley bearings. 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.
This group shows a single part: MOPAR 4429639.
Tensioner Pulley
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 419636 | 🇺🇸 US 🇨🇦 CA | Smooth | View on Amazon |
| SKP | SK89094 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO | 89094 | 🇺🇸 US 🇨🇦 CA | Smooth | View on Amazon |
This table covers the pulleys on the tensioner arm. 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.
3 Tensioner Pulley parts are listed for the 2012 Ram 4500, from DORMAN, SKP and DAYCO.
Economy: 2 parts, from DORMAN and SKP. A representative part number is DORMAN 419636.
The Standard Replacement section: 1 option from DAYCO. DAYCO 89094 is listed in this group.
Part numbers include DORMAN 419636, SKP SK89094 and DAYCO 89094.
Buying Belt Drive Parts for a 2012 Ram 4500
On this vehicle, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys.
- Confirm you have the 6.7L L6 DIESEL Turbocharged 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, replace the tensioner and idler pulleys with any belt at higher mileage — the labor overlaps almost entirely.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Belt and Belt Tensioner .
Frequently Asked Questions
How many belt drive parts fit the 2012 Ram 4500?
Our catalog currently lists 47 belt drive parts for the 2012 Ram 4500 across 5 subcategories and 14 brands, covering the 6.7L L6 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of belt drive problems on a 2012 Ram 4500?
Common symptoms include squealing on cold start, a belt that shows cracking or glazing, or an accessory that slows under load. 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, replace the tensioner and idler pulleys with any belt at higher mileage — the labor overlaps almost entirely.
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 4500 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 4500?
Every part on this page is matched to the 6.7L L6 DIESEL Turbocharged engine. Then a new belt on a worn tensioner will squeal within weeks — check tensioner damping and idler bearings while the belt is off. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2012 Ram 4500
Belt Drive Parts for Other Ram 4500 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.