The 2021 Jeep Gladiator has 53 belt drive parts with verified fitment on this page — 3 part types and 12 brands, covering both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6. Each part includes a manufacturer part number and application notes.
On the 2021 Jeep Gladiator, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys. All 53 listed parts are Idler Pulley (30 parts), Belt (19 parts) and Belt Tensioner (4 parts).
The 2021 Jeep Gladiator was sold with both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
12 brands supply belt drive parts for the 2021 Jeep Gladiator, led by GATES (8 parts), CONTINENTAL (7 parts) and DAYCO (7 parts), plus 9 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 Jeep Gladiator. 11 parts have it, including CONTINENTAL 685K6MK (Belt) and ACDELCO 38082 (Idler Pulley). Each part number opens a page with every vehicle that part fits.
Belt
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Popular Fits: 3.0L V6 DIESEL Turbocharged | 685K6MK | 🇺🇸 US 🇨🇦 CA | Mileage MakerSerpentine | View on Amazon |
| GATES Popular Fits: 3.0L V6 DIESEL Turbocharged | K060685 | 🇺🇸 US 🇨🇦 CA | Micro-V | View on Amazon |
| GATES Popular Fits: 3.6L V6 | K060854 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Micro-V | View on Amazon |
| DAYCO Fits: 3.0L V6 DIESEL Turbocharged | 5060685DR | 🇺🇸 US 🇨🇦 CA | Drive Rite®Serpentine | View on Amazon |
| DAYCO Fits: 3.6L V6 | 5060855DR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Drive Rite®Serpentine | View on Amazon |
| FVP Fits: 3.0L V6 DIESEL Turbocharged | 685K6 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| ROADMAX Fits: 3.0L V6 DIESEL Turbocharged | 6K685AP | 🇺🇸 US 🇨🇦 CA | V-RibbedSerpentine | View on Amazon |
| ROADMAX Fits: 3.6L V6 | 6K854AP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | V-RibbedSerpentine | View on Amazon |
| SKP Fits: 3.6L V6 | SK060854 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Serpentine | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.0L V6 DIESEL Turbocharged | K060685HD | 🇺🇸 US 🇨🇦 CA | Professional / GoldHeavy Duty | View on Amazon |
| GATES Fits: 3.0L V6 DIESEL Turbocharged | K060685HD | 🇺🇸 US 🇨🇦 CA | Fleet Runner Heavy Duty Micro-V | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular Fits: 3.0L V6 DIESEL Turbocharged | 5060685 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| DAYCO Popular Fits: 3.6L V6 | 5060855 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Serpentine | View on Amazon |
| ACDELCO Fits: 3.0L V6 DIESEL Turbocharged | 6K685 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| ACDELCO Fits: 3.6L V6 | 6K854 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| CONTINENTAL Fits: 3.0L V6 DIESEL Turbocharged | 4060685 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| CONTINENTAL Fits: 3.6L V6 | 4060852F | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi V-Belt Reinforced BeltSerpentine | View on Amazon |
| MOPAR Fits: 3.0L V6 DIESEL Turbocharged | 5281760AB | 🇺🇸 US 🇨🇦 CA | G3 Start Stop EngineCrew Cab | View on Amazon |
| MOPAR Fits: 3.0L V6 DIESEL Turbocharged | 5281760AA | 🇺🇸 US 🇨🇦 CA | G3 Start Stop EngineCrew Cab | 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.
19 Belt parts for the 2021 Jeep Gladiator come from 8 brands — DAYCO, CONTINENTAL, GATES and 5 other brands. The "Popular" part is CONTINENTAL 685K6MK.
The Economy section lists 9 options from GATES, DAYCO, ROADMAX and 3 other brands — the catalog's value-priced group. CONTINENTAL 685K6MK is listed in this group.
In the Heavy Duty grade, ACDELCO and GATES supply 2 parts: rated for severe service. A representative part number is ACDELCO K060685HD.
In the Standard Replacement grade, DAYCO, ACDELCO, CONTINENTAL and 1 other brand supply 8 parts: built to original-equipment specification. A representative part number is DAYCO 5060685.
Belt Tensioner
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 3.0L V6 DIESEL Turbocharged | 39343 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| LITENS Fits: 3.0L V6 DIESEL Turbocharged | 999585A | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOPAR Fits: 3.0L V6 DIESEL Turbocharged | 68490063AA | 🇺🇸 US 🇨🇦 CA | G3 Start Stop EngineCrew Cab | View on Amazon |
| MOPAR Fits: 3.6L V6 | 5281453AB | 🇺🇸 US 🇨🇦 CA | 24V VVT Engine.with Start Stop | 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.
4 Belt Tensioner parts are listed for the 2021 Jeep Gladiator, from MOPAR, GATES and LITENS.
This group includes GATES 39343, LITENS 999585A and MOPAR 68490063AA and the remaining parts above.
Idler Pulley
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.6L V6 | 419675 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grooved | View on Amazon |
| SKP Fits: 3.6L V6 | SK89161 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.6L V6 | 38082 | 🇺🇸 US 🇨🇦 CA | Professional / GoldGrooved | View on Amazon |
| DAYCO Popular Fits: 3.6L V6 | 89161 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| GATES Popular Fits: 3.6L V6 | 36816 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| GATES Popular Fits: 3.6L V6 | 38082 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | GroovedPulley Only | View on Amazon |
| CONTINENTAL Fits: 3.6L V6 | 49173 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | SmoothIncludes Hardware | View on Amazon |
| CONTINENTAL Fits: 3.6L V6 | 49073 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grooved | View on Amazon |
| CONTINENTAL Fits: 3.6L V6 | 50106 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| DAYCO Fits: 3.6L V6 | 89070 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grooved | View on Amazon |
| FOUR SEASONS Fits: 3.6L V6 | 45076 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| FOUR SEASONS Fits: 3.6L V6 | 45038 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grooved | View on Amazon |
| GATES Fits: 3.6L V6 | 36959 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| HAYDEN Fits: 3.6L V6 | 5076 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| HAYDEN Fits: 3.6L V6 | 5038 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grooved | View on Amazon |
| LITENS Fits: 3.6L V6 | 900446A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| LITENS Fits: 3.6L V6 | 900149A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grooved | View on Amazon |
| LITENS Fits: 3.6L V6 | 900704A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| MOPAR Fits: 3.6L V6 | 5281821AA | 🇺🇸 US 🇨🇦 CA | Smooth | View on Amazon |
| MOPAR Fits: 3.6L V6 | 68459077AA | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.0L V6 DIESEL Turbocharged | 38082 | 🇺🇸 US 🇨🇦 CA | Professional / GoldGrooved | View on Amazon |
| GATES Popular Fits: 3.0L V6 DIESEL Turbocharged | 38082 | 🇺🇸 US 🇨🇦 CA | GroovedPulley Only | View on Amazon |
| CONTINENTAL Fits: 3.0L V6 DIESEL Turbocharged | 49073 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| DAYCO Fits: 3.0L V6 DIESEL Turbocharged | 89070 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| FOUR SEASONS Fits: 3.0L V6 DIESEL Turbocharged | 45076 | 🇺🇸 US 🇨🇦 CA | Smooth | View on Amazon |
| FOUR SEASONS Fits: 3.0L V6 DIESEL Turbocharged | 45038 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| HAYDEN Fits: 3.0L V6 DIESEL Turbocharged | 5076 | 🇺🇸 US 🇨🇦 CA | Smooth | View on Amazon |
| HAYDEN Fits: 3.0L V6 DIESEL Turbocharged | 5038 | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| LITENS Fits: 3.0L V6 DIESEL Turbocharged | 900149A | 🇺🇸 US 🇨🇦 CA | Grooved | View on Amazon |
| MOPAR Fits: 3.0L V6 DIESEL Turbocharged | 68459077AA | 🇺🇸 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.
30 Idler Pulley parts for the 2021 Jeep Gladiator come from 10 brands — GATES, CONTINENTAL, FOUR SEASONS and 7 other brands. The "Popular" part is ACDELCO 38082. They are grouped as Economy and Standard Replacement, with Standard Replacement the largest group at 18 parts from GATES, CONTINENTAL, LITENS and 5 other brands.
Buying Belt Drive Parts for a 2021 Jeep Gladiator
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: Idler Pulley and Belt .
Frequently Asked Questions
How many belt drive parts fit the 2021 Jeep Gladiator?
Our catalog currently lists 53 belt drive parts for the 2021 Jeep Gladiator across 3 subcategories and 12 brands, covering both the 3.0L V6 DIESEL Turbocharged and the 3.6L V6. Each part is matched to the engine(s) it fits.
Do belt drive parts differ between 2021 Jeep Gladiator 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 Jeep Gladiator?
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 Jeep Gladiator 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 Jeep Gladiator?
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 Jeep Gladiator
Belt Drive Parts for Other Jeep Gladiator 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.