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GatesPart #: 39521
Gates 39521 Accessory Drive Belt Tensioner Assembly
⚙️ 10 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$148.70Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦DriveAlign Premium OE Automatic Belt Tensioner
🚗Fitment: Hyundai and Kia, Santa Fe Sport, Sonata, Sorento, Sportage, and Tucson
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Accessory Drive Belt Tensioner Assembly options
Gates 39521 Accessory Drive Belt Tensioner Assembly
| Brand | Gates |
| Part Number | 39521 |
| Position | DriveAlign Premium OE Automatic Belt Tensioner |
| Material | Thermoplastic |
| Pulley 1 Flanged | No |
| Bearing Bore Inside Diameter | .67 |
| Bearing Bore Inside Diameter | 17 |
| Grade Type | Oe performance |
| Mounting Hole Quantity | 1 |
| Belt Type | V-ribbed |
| Pulley Quantity | 1 |
| 9836 | Smooth/backside |
| Contents | Tensioner assy. |
| Outside Diameter 1 (in) | 2.56 |
| Outside Diameter 1 (mm) | 65 |
| Pulley 1 Groove Quantity | 0 |
| Width 1 (in) | 1.14 |
| Width 1 (mm) | 29 |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2016 | Hyundai | Santa Fe Sport | 2.4L | L4 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2016 | Kia | Sportage | 2.0L | L4 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Hyundai | Santa Fe Sport | 2.4L | L4 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Hyundai | Sonata | 2.0L | L4 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Hyundai | Tucson | 2.4L | L4 | GAS | N/A | DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Kia | Sorento | 2.4L | L4 | GAS | N/A | Apr. 2, 2014 & Newer; DriveAlign Premium OE Automatic Belt Tensioner |
| 2015 | Kia | Sportage | 2.0L | L4 | GAS | N/A | Sept. 23, 2014 & After; DriveAlign Premium OE Automatic Belt Tensioner |
| 2014 | Hyundai | Sonata | 2.4L | L4 | GAS | N/A | Apr. 2, 2014 & Newer; DriveAlign Premium OE Automatic Belt Tensioner |
| 2014 | Hyundai | Tucson | 2.4L | L4 | GAS | N/A | Oct. 1, 2014 & Newer; DriveAlign Premium OE Automatic Belt Tensioner |
| 2014 | Kia | Sorento | 2.4L | L4 | GAS | N/A | Apr. 2, 2014 & Newer; DriveAlign Premium OE Automatic Belt Tensioner |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
252812G00039521
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.