The 2021 Buick Encore has 40 belt drive parts with verified fitment on this page — 3 part types and 10 brands, covering all 3 engine options (1.2L L3 Turbocharged, 1.3L L3 Turbocharged and 1.4L L4 Turbocharged). Each part includes a manufacturer part number and application notes.
The belt drive system on the 2021 Buick Encore spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys. All 40 listed parts are Belt (21 parts), Belt Tensioner (18 parts) and Belt Tensioner Bolt (1 part).
The 2021 Buick Encore 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 Buick Encore belt drive parts are DAYCO (8 parts), ACDELCO (8 parts) and GATES (7 parts), plus 7 more brands. Quality grades include Standard Replacement and Economy.
8 parts on this 2021 Buick Encore page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including DAYCO 5040413DR (Belt) and SKP SK89637 (Belt Tensioner). Click any part number to see every vehicle that part fits.
Belt
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular Fits: 1.3L L3 Turbocharged | 5040413DR | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Drive Rite®Serpentine | View on Amazon |
| CONTINENTAL Fits: 1.3L L3 Turbocharged | 412K4MK | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mileage MakerSerpentine | View on Amazon |
| DAYCO Fits: 1.2L L3 Turbocharged | 5050475DR | 🇺🇸 US 🇨🇦 CA | Drive Rite®Serpentine | View on Amazon |
| FVP Fits: 1.3L L3 Turbocharged | 412K4 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi V-BeltSerpentine | View on Amazon |
| GATES Fits: 1.4L L4 Turbocharged | K050665 | 🇺🇸 US 🇨🇦 CA | Micro-V | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 1.4L L4 Turbocharged | 55595700 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentSerpentine | View on Amazon |
| CONTINENTAL Popular Fits: 1.3L L3 Turbocharged | 4040412 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi V-BeltSerpentine | View on Amazon |
| CONTINENTAL Popular Fits: 1.4L L4 Turbocharged | 4060545 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| DAYCO Popular Fits: 1.2L L3 Turbocharged | 5050478 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| ACDELCO Fits: 1.2L L3 Turbocharged | 25206477 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentSerpentine | View on Amazon |
| ACDELCO Fits: 1.3L L3 Turbocharged | 25206736 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentSerpentine | View on Amazon |
| ACDELCO Fits: 1.4L L4 Turbocharged | 55587929 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentSerpentine | View on Amazon |
| ACDELCO Fits: 1.4L L4 Turbocharged | 6K544 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| ACDELCO Fits: 1.4L L4 Turbocharged | 5K665 | 🇺🇸 US 🇨🇦 CA | Professional / GoldSerpentine | View on Amazon |
| CONTINENTAL Fits: 1.2L L3 Turbocharged | 4050476F | 🇺🇸 US 🇨🇦 CA | Multi V-Belt Reinforced BeltSerpentine | View on Amazon |
| DAYCO Fits: 1.3L L3 Turbocharged | 5040413 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Serpentine | View on Amazon |
| DAYCO Fits: 1.4L L4 Turbocharged | 5050665 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| DAYCO Fits: 1.4L L4 Turbocharged | 5060545 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| GATES Fits: 1.2L L3 Turbocharged | K050476A | 🇺🇸 US 🇨🇦 CA | Micro-V | View on Amazon |
| GATES Fits: 1.3L L3 Turbocharged | K040413A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Micro-V | View on Amazon |
| GATES Fits: 1.4L L4 Turbocharged | K060544 | 🇺🇸 US 🇨🇦 CA | 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.
21 Belt parts are listed for the 2021 Buick Encore, from DAYCO, ACDELCO, CONTINENTAL and 2 other brands. DAYCO 5040413DR carries the "Popular" badge.
In the Economy grade, DAYCO, CONTINENTAL, FVP and 1 other brand supply 5 parts: the catalog's value-priced group. A representative part number is DAYCO 5040413DR.
The Standard Replacement section lists 16 options from ACDELCO, DAYCO, CONTINENTAL and 1 other brand — built to original-equipment specification. ACDELCO 55595700 is listed in this group.
Belt Tensioner
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 1.4L L4 Turbocharged | SK89637 | 🇺🇸 US 🇨🇦 CA | MFIwithout High Output | View on Amazon |
| CLOYES Fits: 1.3L L3 Turbocharged | B20599 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| CLOYES Fits: 1.4L L4 Turbocharged | B20273 | 🇺🇸 US 🇨🇦 CA | Includes Hardware | View on Amazon |
| ULTRA-POWER Fits: 1.4L L4 Turbocharged | 39375 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular Fits: 1.4L L4 Turbocharged | 12638689 | 🇺🇸 US 🇨🇦 CA | DI | View on Amazon |
| LITENS Popular Fits: 1.4L L4 Turbocharged | 950260A | 🇺🇸 US 🇨🇦 CA | MFI | View on Amazon |
| ACDELCO Fits: 1.4L L4 Turbocharged | 39375 | 🇺🇸 US 🇨🇦 CA | Professional / Gold | View on Amazon |
| ACDELCO Fits: 1.4L L4 Turbocharged | 38344 | 🇺🇸 US 🇨🇦 CA | Professional / Gold | View on Amazon |
| CONTINENTAL Fits: 1.4L L4 Turbocharged | 49804 | 🇺🇸 US 🇨🇦 CA | Multi-V or Smooth Pulley | View on Amazon |
| DAYCO Fits: 1.4L L4 Turbocharged | 89744 | 🇺🇸 US 🇨🇦 CA | DI | View on Amazon |
| DAYCO Fits: 1.4L L4 Turbocharged | 89637 | 🇺🇸 US 🇨🇦 CA | MFI | View on Amazon |
| GATES Fits: 1.3L L3 Turbocharged | 39705 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GATES Fits: 1.4L L4 Turbocharged | 39375 | 🇺🇸 US 🇨🇦 CA | DI | View on Amazon |
| GATES Fits: 1.4L L4 Turbocharged | 38344 | 🇺🇸 US 🇨🇦 CA | MFI | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 12691804 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Fits: 1.4L L4 Turbocharged | 25195388 | 🇺🇸 US 🇨🇦 CA | Contact Surface: Smooth/Backside | View on Amazon |
| LITENS Fits: 1.4L L4 Turbocharged | 999622A | 🇺🇸 US 🇨🇦 CA | DI | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.2L L3 Turbocharged | 55504513 | 🇺🇸 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.
18 Belt Tensioner parts for the 2021 Buick Encore come from 9 brands — GM GENUINE, GATES, CLOYES and 6 other brands. The "Popular" part is SKP SK89637.
The Economy section: 4 options from CLOYES, SKP and ULTRA-POWER. SKP SK89637 is listed in this group.
Standard Replacement: 13 parts, from GM GENUINE, GATES, LITENS and 3 other brands. A representative part number is GM GENUINE 12638689.
1 further part sits outside the graded sections, with the same engine-level match.
Belt Tensioner Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 11588725 | 🇺🇸 US 🇨🇦 CA | M8X1.25X35 | View on Amazon |
This table covers the Belt Tensioner bolts.
One part is listed for the 2021 Buick Encore — GM GENUINE 11588725.
Buying Belt Drive Parts for a 2021 Buick Encore
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 Buick Encore?
Our catalog currently lists 40 belt drive parts for the 2021 Buick Encore across 3 subcategories and 10 brands, covering all 3 engine options (1.2L L3 Turbocharged, 1.3L L3 Turbocharged and 1.4L L4 Turbocharged). Each part is matched to the engine(s) it fits.
Do belt drive parts differ between 2021 Buick Encore 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 Buick Encore?
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 Encore 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 Encore?
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 Buick Encore
Belt Drive Parts for Other Buick Encore Years
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