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Gates K120903 Serpentine Belt - Fan or Fan and Alternator
| Brand | Gates K120903 |
|---|---|
| Position | Fan and Alternator and Fan |
| Top Width | 1.647 |
| Top Width | 42 |
| Cord Material | Polyester |
| Cross Section Designation | K |
| Effective Length | 2294 |
| Effective Length | 90.31 |
| Outside Circumference | 2308 |
| Outside Circumference | 90.873 |
| Type | Automotive v-ribbed belt (standard) |
| Rib Quantity | 12 |
| Washer Pump Included | Epdm |
| Belt Material | Epdm |
| Cord Material | Polyester |
| OE Comparison Rating | Oe performance |
| Section | K |
| Type | Automotive v-ribbed belt (standard) |
| Fits | — |
OE micro-V belt. Precision-fit construction matches OE size, materials, and performance.
EPDM belt material. Built for durable, reliable accessory drive operation.
12-rib design. Provides secure engagement and consistent power transfer.
Cross-references Dayco 5120903, Gates K120903 and Gates K120903HD for the same application. See all 14.
Gates K120903 Premium OE Micro-V Belt
The Gates K120903 is a premium OE Micro-V serpentine belt built for import and domestic cars and trucks that use a 12-rib accessory drive belt. It matches OE size, construction, and materials to support consistent belt tracking and dependable accessory operation.
Key Features
- Part number: K120903
- Premium OE Micro-V belt for accessory drive systems
- 12-rib, automotive V-ribbed belt design
- EPDM belt material for durability in demanding engine bay conditions
- Polyester cord material for stable belt construction
- OE Performance comparison rating
- Effective length: 90.31 in. (2294 mm)
- Outside circumference: 90.873 in. (2308 mm)
- Top width: 1.647 in. (42 mm)
Product Details
Gates Premium OE Micro-V Belt K120903 is engineered to follow original equipment dimensions and material specifications for a precise fit in the accessory drive belt system. The 12-rib profile, EPDM construction, and polyester cord reinforcement help maintain proper belt engagement across pulleys while supporting reliable operation of driven accessories. This part cross-references Dayco 5120903 for the same application.
For buyers searching for a serpentine belt for import or domestic car and truck applications, Gates K120903 is a direct-fit OE-style replacement that aligns with the belt system requirements used on many vehicles. It is a practical choice when replacing a worn accessory drive belt on vehicles such as Honda Civic and Toyota Camry applications where the correct rib count and length are critical.
Common Problems This Belt Can Address
- Squealing or chirping from a worn serpentine belt
- Cracking, glazing, or fraying on the belt surface
- Loss of proper accessory drive engagement
- Belt slip caused by age-related stretch or wear
- Noise from an aging accessory drive belt system
Installation Notes and Tips
Verify rib count, effective length, and outside circumference before installation to confirm the correct replacement for your vehicle. Inspect pulleys, tensioners, and idlers for wear before fitting the new belt, and make sure the belt tracks evenly across all grooves after installation. For fitment-based searches, confirm the exact application by year, make, model, and engine configuration before ordering K120903.
Quality Assurance
Gates builds Micro-V belts to OE-size and OE-material standards for consistent performance in the accessory drive system. The Premium OE Micro-V Belt line is designed around original equipment construction requirements to support dependable service life and accurate fitment.
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