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GatesPart #: K100665HD
Gates K100665HD Serpentine Belt - Fan or Fan and Alternator
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$55.43Free 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
🔄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 Serpentine Belt options
Gates K100665HD Serpentine Belt - Fan or Fan and Alternator
| Brand | Gates |
| Part Number | K100665HD |
| Top Width | 1.367 |
| Top Width | 35 |
| Cord Material | Polyester |
| Cross Section Designation | K |
| Effective Length | 1690 |
| Effective Length | 66.53 |
| Outside Circumference | 1704 |
| Outside Circumference | 67.095 |
| Type | Automotive v-ribbed belt (heavy duty) |
| Rib Quantity | 10 |
| Washer Pump Included | Epdm |
| Belt Material | Epdm |
| Cord Material | Polyester |
| OE Comparison Rating | Oe improved |
| Section | K |
| Type | Automotive v-ribbed belt (heavy duty) |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* 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:
10K66510PK16902043038720663320912625-10066525-100665HD4100665510066551968200330665K10666K10MK88GB447P66588GB447P66688GB458P666981390981633GT4100665K100665K100665HD
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.