The 2021 Buick Enclave has 28 belt drive parts with verified fitment on this page — 4 part types and 14 brands, covering the 3.6L V6 engine. Each part includes a manufacturer part number and application notes.
On the 2021 Buick Enclave, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys. Most of the listed parts are Idler Pulley (10 parts), Belt (9 parts) and Belt Tensioner (8 parts). The other 1 part type covers the remaining 1 part.
Every part on this page is matched to the 3.6L V6 — the only engine offered in the 2021 Buick Enclave.
The most listed brands for 2021 Buick Enclave belt drive parts are DAYCO (4 parts), ACDELCO (4 parts) and GATES (3 parts), plus 11 more brands. Quality grades include Standard Replacement and Economy.
6 parts on this 2021 Buick Enclave page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including GATES K060744 (Belt) and ACDELCO 38397 (Belt Tensioner). Click any part number to see every vehicle that part fits.
Belt
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | K060744 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Micro-V | View on Amazon |
| ROADMAX Popular | 6K744AP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | V-RibbedSerpentine | View on Amazon |
| DAYCO | 5060745DR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Drive Rite®Serpentine | View on Amazon |
| FVP | 745K6 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi V-Belt or Multi V-Belt Reinforced Belt | View on Amazon |
| SKP | SK060744 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Serpentine | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 12647764 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentSerpentine | View on Amazon |
| ACDELCO | 6K744 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| BANDO | 6PK1890 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | V-RibbedRib Quantity: 6 | View on Amazon |
| DAYCO | 5060745 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Serpentine | 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.
9 Belt parts are listed for the 2021 Buick Enclave, from DAYCO, ACDELCO, GATES and 4 other brands. GATES K060744 carries the "Popular" badge.
In the Economy grade, GATES, ROADMAX, DAYCO and 2 other brands supply 5 parts: the catalog's value-priced group. A representative part number is GATES K060744.
The Standard Replacement section lists 4 options from ACDELCO, BANDO and DAYCO — built to original-equipment specification. ACDELCO 12647764 is listed in this group.
Listed part numbers: GATES K060744, ROADMAX 6K744AP and DAYCO 5060745DR, plus the other parts above.
Belt Tensioner
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CLOYES | B20227 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SKP | SK89389 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 38397 | 🇺🇸 US 🇨🇦 CA | Professional / Gold | View on Amazon |
| DAYCO Popular | 89389 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| CONTINENTAL | 49378 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-V or Smooth Pulley | View on Amazon |
| GATES | 38397 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GM GENUINE | 12715120 | 🇺🇸 US 🇨🇦 CA | Contact Surface: Smooth/Backside | View on Amazon |
| LITENS | 999679A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
8 Belt Tensioner parts for the 2021 Buick Enclave come from 8 brands — CLOYES, SKP, ACDELCO and 5 other brands. The "Popular" part is ACDELCO 38397.
The Economy section: 2 options from CLOYES and SKP. CLOYES B20227 is listed in this group.
Standard Replacement: 6 parts, from ACDELCO, DAYCO, CONTINENTAL and 3 other brands. A representative part number is ACDELCO 38397.
Listed part numbers: ACDELCO 38397, CLOYES B20227 and SKP SK89389, plus the other parts above.
Belt Tensioner Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 11588730 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Belt Tensioner bolts.
One part is listed for the 2021 Buick Enclave — GM GENUINE 11588730.
Idler Pulley
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP | SK89131 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 36110 | 🇺🇸 US 🇨🇦 CA | GoldSmooth | View on Amazon |
| GM GENUINE Popular | 12610680 | 🇺🇸 US 🇨🇦 CA | Pulley Outside Diameter (In): 2.76 IN | View on Amazon |
| CONTINENTAL | 50002 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | SmoothIncludes Hardware | View on Amazon |
| DAYCO | 89131 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| FOUR SEASONS | 45083 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| GATES | 36110 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| GPD | 4011381 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HAYDEN | 5083 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Smooth | View on Amazon |
| LITENS | 900518A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
10 Idler Pulley parts are listed for the 2021 Buick Enclave, from SKP, ACDELCO, GM GENUINE and 7 other brands. ACDELCO 36110 carries the "Popular" badge.
Economy: 1 part, from SKP. A representative part number is SKP SK89131.
The Standard Replacement section: 9 options from ACDELCO, GM GENUINE, CONTINENTAL and 6 other brands. ACDELCO 36110 is listed in this group.
Buying Belt Drive Parts for a 2021 Buick Enclave
On this vehicle, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys.
- Confirm you have the 3.6L V6 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: Idler Pulley and Belt .
Frequently Asked Questions
How many belt drive parts fit the 2021 Buick Enclave?
Our catalog currently lists 28 belt drive parts for the 2021 Buick Enclave across 4 subcategories and 14 brands, covering the 3.6L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of belt drive problems on a 2021 Buick Enclave?
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 Buick Enclave 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 Buick Enclave?
Every part on this page is matched to the 3.6L V6 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 2021 Buick Enclave
Belt Drive Parts for Other Buick Enclave 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.