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Gates
FleetRunner Heavy Duty Micro-V BeltGates K040745HD Serpentine Belt - Air Compressor
| Brand | Gates K040745HD |
|---|---|
| Belt Material | EPDM |
| Cord Material | Polyester |
| Cord Material | Polyester |
| Cross Section Designation | K |
| Effective Length | 74.52 |
| Effective Length | 1893 |
| OE Comparison Rating | OE Improved |
| Outside Circumference | 75.087 |
| Outside Circumference | 1907 |
| Rib Quantity | 4 |
| Section | K |
| Top Width | .56 |
| Top Width | 14 |
| Type | Automotive V-Ribbed Belt (Heavy Duty) |
| Type | Automotive V-Ribbed Belt (Heavy Duty) |
| Washer Pump Included | EPDM |
| Product line | FleetRunner Heavy Duty Micro-V Belt |
| Fits | Chevrolet and GMC · 70 vehicles |
OE improved replacement. Heavy-duty serpentine belt built for durability, flexibility, and longer life.
EPDM construction. Distinct green overcord adds stability for demanding accessory drive systems.
Polyester cord. Helps deliver consistent strength in a heavy-duty V-ribbed belt.
Cross-references Dayco 5040745, Gates K040745 and Gates K040745HD for the same application. See all 19.
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Heavy-Duty Micro-V Belt for Fleet Applications
The Gates FleetRunner Heavy Duty Micro-V Belt is built for accessory drive systems that need stable performance under demanding service. This K040745HD serpentine belt uses EPDM construction, a polyester cord, and a 4-rib design to support durability, flexibility, and consistent operation on heavy-duty drives.
Compatible With 1987-1989 Chevrolet and GMC C/K, G, and G-Series trucks and vans in listed non-A/C configurations, this belt is a direct-fit option for specific fleet and work vehicle applications. The Gates K040745HD is also cross-referenced to Dayco 5040745 for the same application.
Key Features
- FleetRunner Heavy Duty Micro-V Belt from Gates
- Part number: K040745HD
- EPDM belt material for improved wear resistance and long service life
- Polyester cord construction for strength and stability
- 4-rib automotive V-ribbed belt design
- OE Improved rating for updated replacement performance
- Effective length: 74.52 in. / 1893 mm
- Outside circumference: 75.087 in. / 1907 mm
- Top width: 0.56 in. / 14 mm
Product Line Details
Gates FleetRunner Heavy Duty Micro-V belts are engineered for commercial and fleet service where accessory drive reliability matters. The EPDM construction and distinct green overcord are used to improve flexibility, stability, and belt life in heavy-duty operating conditions.
Detailed Description
The K040745HD is a heavy-duty serpentine belt for accessory drive systems that require a K-section, 4-rib Micro-V profile. It is sized for applications calling for 74.52 inches of effective length and 75.087 inches of outside circumference, making it a precise replacement for listed Chevrolet and GMC trucks and vans from 1987 through 1989. If you are servicing a Chevrolet C1500, C2500, or G10, or a GMC C1500, G1500, or K-series truck in the specified configuration, this belt matches the documented fitment.
This part cross-references Dayco 5040745 for the same application.
What This Belt Helps Address
- Squealing or slipping accessory drive belts
- Cracking, glazing, or visible belt wear
- Loss of stable drive to belt-driven accessories
- Service downtime caused by worn fleet belts
- Fitment issues when replacing an OE-style K-section belt
Installation Notes and Tips
- Verify the vehicle year, make, model, and engine/accessory configuration before ordering.
- Confirm the belt path and tensioner condition before installation.
- Inspect pulleys for wear, misalignment, or contamination that can shorten belt life.
- Use the listed effective length and rib count to match the original application.
- For listed fitments, this belt applies to non-air-conditioning configurations noted in the vehicle data.
Quality Assurance
Gates FleetRunner belts are built with EPDM construction and a heavy-duty Micro-V design to support durability and consistent operation in fleet service. The OE Improved rating reflects a replacement part engineered to meet demanding accessory drive requirements.
This part fits 70 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1989 | Chevrolet | C1500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | C1500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | C2500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | C2500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | C3500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | G10 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | G10 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | G20 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | G20 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | G30 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | K1500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | K1500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | K2500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | K2500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | Chevrolet | K3500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | C1500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | C1500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | C2500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | C2500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | C3500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | G1500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | G1500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | G2500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | G2500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | G3500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | K1500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | K1500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | K2500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | K2500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1989 | GMC | K3500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | C1500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | C1500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | C2500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | C2500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | C3500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | G10 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | G10 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | G20 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | G20 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | G30 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | K1500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | K1500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | K2500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | K2500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | Chevrolet | K3500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | C1500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | C1500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | C2500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | C2500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | C3500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | G1500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | G1500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | G2500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | G2500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | G3500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | K1500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | K1500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | K2500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | K2500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1988 | GMC | K3500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | Chevrolet | G10 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | Chevrolet | G10 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | Chevrolet | G20 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | Chevrolet | G20 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | Chevrolet | G30 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | GMC | G1500 | 5.0L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | GMC | G1500 | 5.7L | V8 | GAS | N/A | Without air conditioning and with automatic tensioner pulley.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | GMC | G2500 | 5.0L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | GMC | G2500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| 1987 | GMC | G3500 | 5.7L | V8 | GAS | N/A | W/O A.C.; W/A.P.; W/O P.S.; FleetRunner Heavy Duty Micro-V Belt |
| No rows match your filter. | |||||||
Directly replaces or cross-references 19 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dayco — 5040745Gates — K040745Gates — K040745HD4K7454PK189014-0685-825-04074525-040745HD25-71892745K4745K4MK16475340407455040745DR1410210015074400A-745K4JK4-752PK040745