This page lists 56 belt drive parts for the 2021 Ram 4500, across 5 part types, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 Ram 4500, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys. 51 parts of the 56 listed are Belt (26 parts), Belt Tensioner (16 parts) and Idler Pulley (9 parts). The other 2 part types cover the remaining 5 parts.
The 2021 Ram 4500 was sold with both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
15 brands supply belt drive parts for the 2021 Ram 4500, led by GATES (11 parts), CONTINENTAL (11 parts) and DAYCO (9 parts), plus 12 more brands. Quality grades include Standard Replacement, Economy and Heavy Duty.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Ram 4500. 12 parts have it, including DAYCO 5060795DR (Belt) and ACDELCO 38323 (Belt Tensioner). Each part number opens a page with every vehicle that part fits.
Belt
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular Fits: 6.4L V8 | 5060795DR | 🇺🇸 US 🇨🇦 CA | Drive Rite®Serpentine | View on Amazon |
| GATES Popular Fits: 6.4L V8 | K060795 | 🇺🇸 US 🇨🇦 CA | Micro-V | View on Amazon |
| CONTINENTAL Fits: 6.4L V8 | 795K6MK | 🇺🇸 US 🇨🇦 CA | Mileage MakerSerpentine | View on Amazon |
| DAYCO Fits: 6.4L V8 | 5050360DR | 🇺🇸 US 🇨🇦 CA | Drive Rite®Serpentine | View on Amazon |
| FVP Fits: 6.4L V8 | 795K6 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| ROADMAX Fits: 6.4L V8 | 6K795AP | 🇺🇸 US 🇨🇦 CA | V-RibbedSerpentine | View on Amazon |
| SKP Fits: 6.4L V8 | SK060795HD | 🇺🇸 US 🇨🇦 CA | SerpentineHeavy Duty | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 6.4L V8 | K060795HD | 🇺🇸 US 🇨🇦 CA | Fleet Runner Heavy Duty Micro-V | View on Amazon |
| GATES Popular Fits: 6.7L L6 DIESEL Turbocharged | K081244HD | 🇺🇸 US 🇨🇦 CA | Fleet Runner Heavy Duty Micro-V | View on Amazon |
| ACDELCO Fits: 6.4L V8 | K060795HD | 🇺🇸 US 🇨🇦 CA | Professional / GoldHeavy Duty | View on Amazon |
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 4081244X | 🇺🇸 US 🇨🇦 CA | Extreme Duty Multi V-BeltSerpentine | View on Amazon |
| GATES Fits: 6.7L L6 DIESEL Turbocharged | K081294HD | 🇺🇸 US 🇨🇦 CA | Fleet Runner Heavy Duty Micro-V | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Popular Fits: 6.4L V8 | 4060795 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| DAYCO Popular Fits: 6.7L L6 DIESEL Turbocharged | 5081244 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| ACDELCO Fits: 6.4L V8 | 6K795 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| CONTINENTAL Fits: 6.4L V8 | 4050365S | 🇺🇸 US 🇨🇦 CA | Multi V-Belt Stretch Belt | View on Amazon |
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 4081295 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 4081244 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| DAYCO Fits: 6.4L V8 | 5050360 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| DAYCO Fits: 6.4L V8 | 5060795 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| DAYCO Fits: 6.7L L6 DIESEL Turbocharged | 5081294 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| GATES Fits: 6.4L V8 | K050354SF | 🇺🇸 US 🇨🇦 CA | Premium OE Stretch Fit Micro-V BeltRequires Installation Tool | View on Amazon |
| GATES Fits: 6.7L L6 DIESEL Turbocharged | K081244 | 🇺🇸 US 🇨🇦 CA | Micro-V | View on Amazon |
| GATES Fits: 6.7L L6 DIESEL Turbocharged | K081294 | 🇺🇸 US 🇨🇦 CA | Micro-V | View on Amazon |
| MOPAR Fits: 6.4L V8 | 4593665AB | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineRegular Cab Chassis Wheelbase 1or Heavy Duty HEMI MDS Engine | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68232297AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS EngineDual Alternators Rated At 380 Amps | 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.
26 Belt parts for the 2021 Ram 4500 come from 8 brands — GATES, DAYCO, CONTINENTAL and 5 other brands. The "Popular" part is DAYCO 5060795DR. They are grouped as Economy, Heavy Duty and Standard Replacement, with Standard Replacement the largest group at 14 parts from CONTINENTAL, DAYCO, GATES and 2 other brands.
Belt Removal / Installation Tool
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 6.4L V8 | 91087 | 🇺🇸 US 🇨🇦 CA | For Certain Dodge/Chrysler Applications | View on Amazon |
This table covers the Belt Removal / Installation tools. This is a service tool, not a wear part — match the application in the notes.
One part is listed for the 2021 Ram 4500 — GATES 91087.
Belt Tensioner
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.4L V8 | 419006 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DORMAN Fits: 6.7L L6 DIESEL Turbocharged | 419039 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: 6.4L V8 | SK89377 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: 6.7L L6 DIESEL Turbocharged | SK89362 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VAICO Fits: 6.4L V8 | V330577 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 6.4L V8 | 38323 | 🇺🇸 US 🇨🇦 CA | Professional / Gold | View on Amazon |
| DAYCO Popular Fits: 6.7L L6 DIESEL Turbocharged | 89362 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GATES Popular Fits: 6.7L L6 DIESEL Turbocharged | 38285 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOPAR Popular Fits: 6.4L V8 | 4861660AA | 🇺🇸 US 🇨🇦 CA | Fits Heavy Duty HEMI MDS Engine.Regular Cab Chassis Wheelbase 3or Heavy Duty HEMI MDS Engine. | View on Amazon |
| ACDELCO Fits: 6.7L L6 DIESEL Turbocharged | 38285 | 🇺🇸 US 🇨🇦 CA | Professional / Gold | View on Amazon |
| CONTINENTAL Fits: 6.4L V8 | 49345 | 🇺🇸 US 🇨🇦 CA | Multi-V or Smooth Pulley | View on Amazon |
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 49544 | 🇺🇸 US 🇨🇦 CA | Multi-V or Smooth Pulley | View on Amazon |
| DAYCO Fits: 6.4L V8 | 89377 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GATES Fits: 6.4L V8 | 38323 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| LITENS Fits: 6.4L V8 | 999600A | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| LITENS Fits: 6.7L L6 DIESEL Turbocharged | 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.
16 Belt Tensioner parts are listed for the 2021 Ram 4500, from DORMAN, SKP, ACDELCO and 6 other brands. ACDELCO 38323 carries the "Popular" badge.
In the Economy grade, DORMAN, SKP and VAICO supply 5 parts: the catalog's value-priced group. A representative part number is DORMAN 419006.
The Standard Replacement section lists 11 options from ACDELCO, DAYCO, GATES and 3 other brands — built to original-equipment specification. ACDELCO 38323 is listed in this group.
Idler Pulley
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Popular Fits: 6.7L L6 DIESEL Turbocharged | 45917 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| GATES Popular Fits: 6.7L L6 DIESEL Turbocharged | 36315 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| ACDELCO Fits: 6.7L L6 DIESEL Turbocharged | 36315 | 🇺🇸 US 🇨🇦 CA | Professional / GoldGrooved | View on Amazon |
| CONTINENTAL Fits: 6.4L V8 | 49024 | 🇺🇸 US 🇨🇦 CA | Smooth | View on Amazon |
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 49172 | 🇺🇸 US 🇨🇦 CA | Grooved, Includes HardwareMulti-V | View on Amazon |
| DAYCO Fits: 6.7L L6 DIESEL Turbocharged | 89168 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| HAYDEN Fits: 6.7L L6 DIESEL Turbocharged | 5917 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| LITENS Fits: 6.7L L6 DIESEL Turbocharged | 900365A | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| MOPAR Fits: 6.4L V8 | 5281677AA | 🇺🇸 US 🇨🇦 CA | Smooth | 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.
9 Idler Pulley parts for the 2021 Ram 4500 come from 8 brands — CONTINENTAL, FOUR SEASONS, GATES and 5 other brands. The "Popular" part is FOUR SEASONS 45917.
Part numbers include FOUR SEASONS 45917 and GATES 36315, among others listed above.
Tensioner Pulley
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Fits: 6.4L V8 | 06F903315P | 🇺🇸 US 🇨🇦 CA | 70.5mm OD x 17mm ID x 24.5mm | View on Amazon |
| ÜRO PARTS Fits: 6.4L V8 | 06F903315P | 🇺🇸 US 🇨🇦 CA | 70.5mm OD x 17mm ID x 24.5mm | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 6.4L V8 | 49161 | 🇺🇸 US 🇨🇦 CA | Smooth | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.7L L6 DIESEL Turbocharged | 419636 | 🇺🇸 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.
4 Tensioner Pulley parts are listed for the 2021 Ram 4500, from AUTOTECNICA, ÜRO PARTS, CONTINENTAL and 1 other brand.
Economy: 2 parts, from AUTOTECNICA and ÜRO PARTS. A representative part number is AUTOTECNICA 06F903315P.
The Standard Replacement section: 1 option from CONTINENTAL. CONTINENTAL 49161 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Part numbers include AUTOTECNICA 06F903315P and CONTINENTAL 49161, among others listed above.
Buying Belt Drive Parts for a 2021 Ram 4500
On this vehicle, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys.
- Match the engine first. Every belt drive 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, 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 2021 Ram 4500?
Our catalog currently lists 56 belt drive parts for the 2021 Ram 4500 across 5 subcategories and 15 brands, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do belt drive parts differ between 2021 Ram 4500 engines?
Yes. Every belt drive 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 belt drive problems on a 2021 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 2021 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 2021 Ram 4500?
First match the engine — each row shows which engine(s) the part fits. 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 2021 Ram 4500
Belt Drive Parts for Other Ram 4500 Years
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