20 Belt drive parts are listed for the 2021 Ford Transit, in 2 part types, covering all 3 engine options (2.0L L4 DIESEL Turbocharged, 3.5L V6 and 999cc L3 Turbocharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
The belt drive system on the 2021 Ford Transit spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys. All 20 listed parts are Belt (10 parts) and Belt Tensioner (10 parts).
The 2021 Ford Transit was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Ford Transit belt drive parts are GATES (7 parts), CONTINENTAL (4 parts) and ACDELCO (3 parts), plus 5 more brands. Quality grades include Standard Replacement, Economy and Kit.
4 parts on this 2021 Ford Transit page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including GATES K060547 (Belt) and ACDELCO 39221 (Belt Tensioner). Click any part number to see every vehicle that part fits.
Belt
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 3.5L V6 | K060547 | 🇲🇽 MX | Micro-V | View on Amazon |
| CONTINENTAL Fits: 3.5L V6 | 547K6MK | 🇲🇽 MX | Mileage MakerSerpentine | View on Amazon |
| FVP Fits: 3.5L V6 | 547K6 | 🇲🇽 MX | Multi V-BeltSerpentine | View on Amazon |
| ROADMAX Fits: 3.5L V6 | 4K551AP | 🇲🇽 MX | V-RibbedSerpentine | View on Amazon |
| SKP Fits: 3.5L V6 | SK060547 | 🇲🇽 MX | Serpentine | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BANDO Popular Fits: 3.5L V6 | 6PK1390 | 🇲🇽 MX | Rib Quantity: 6 | View on Amazon |
| ACDELCO Fits: 3.5L V6 | 4K551 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| ACDELCO Fits: 3.5L V6 | 6K547 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| CONTINENTAL Fits: 3.5L V6 | 4060547 | 🇲🇽 MX | Multi V-BeltSerpentine | View on Amazon |
| GATES Fits: 3.5L V6 | K040551 | 🇲🇽 MX | Micro-V | 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.
10 Belt parts are listed for the 2021 Ford Transit, from GATES, CONTINENTAL, ACDELCO and 4 other brands. GATES K060547 carries the "Popular" badge.
In the Economy grade, GATES, CONTINENTAL, FVP and 2 other brands supply 5 parts: the catalog's value-priced group. A representative part number is GATES K060547.
The Standard Replacement section lists 5 options from ACDELCO, BANDO, CONTINENTAL and 1 other brand — built to original-equipment specification. BANDO 6PK1390 is listed in this group.
Belt Tensioner
Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 3.5L V6 | 90K39456 | 🇲🇽 MX | Heavy DutyKit | View on Amazon |
| GATES Fits: 3.5L V6 | 90K39221A | 🇲🇽 MX | KitIncludes: Belt, Tensioner | View on Amazon |
| GATES Fits: 3.5L V6 | 90K39221B | 🇲🇽 MX | Heavy DutyKit | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.5L V6 | 39221 | 🇺🇸 US 🇨🇦 CA | Professional / Gold | View on Amazon |
| GATES Popular Fits: 3.5L V6 | 39221 | 🇲🇽 MX | Water Pump | View on Amazon |
| CONTINENTAL Fits: 3.5L V6 | 49865 | 🇲🇽 MX | Multi-V | View on Amazon |
| CONTINENTAL Fits: 3.5L V6 | 49489 | 🇲🇽 MX | Multi-V | View on Amazon |
| GATES Fits: 3.5L V6 | 39456 | 🇲🇽 MX | Air Conditioning and Alternator | View on Amazon |
| LITENS Fits: 3.5L V6 | 999914A | 🇲🇽 MX | Air Conditioning and Power Steering | View on Amazon |
| LITENS Fits: 3.5L V6 | 999461A | 🇲🇽 MX | Water Pump | 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.
10 Belt Tensioner parts for the 2021 Ford Transit come from 4 brands — GATES, CONTINENTAL, LITENS and 1 other brand. The "Popular" part is ACDELCO 39221.
The Kit section lists 3 options from GATES — grouped under the catalog's "Kit" designation — the notes column spells out what sets them apart. GATES 90K39456 is listed in this group.
Standard Replacement: 7 parts, from GATES, CONTINENTAL, LITENS and 1 other brand. A representative part number is ACDELCO 39221.
Buying Belt Drive Parts for a 2021 Ford Transit
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 Ford Transit?
Our catalog currently lists 20 belt drive parts for the 2021 Ford Transit across 2 subcategories and 8 brands, covering all 3 engine options (2.0L L4 DIESEL Turbocharged, 3.5L V6 and 999cc L3 Turbocharged). Each part is matched to the engine(s) it fits.
Do belt drive parts differ between 2021 Ford Transit 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 Ford Transit?
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 Ford Transit 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 Ford Transit?
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 Ford Transit
Belt Drive Parts for Other Ford Transit Years
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