OE Quality
60-Day Returns

Gates K040365SF Serpentine Belt - Air Conditioning
Overview of Gates Premium OE Stretch Fit Micro-V Belt
The Gates Premium OE Stretch Fit Micro-V Belt (part number K040365SF) is engineered for reliable performance in Cadillac CTS vehicles. Designed with precision, this serpentine belt ensures optimal accessory drive system operation with a stretch fit design that simplifies installation.
- Top width options: 0.56 inch and 14 mm
- Cord material constructed from durable nylon
- Cross section designation: K
- Effective length: 36.58 inches (929 mm)
- Outside circumference: 37.125 inches (943 mm)
- 4 rib automotive V-ribbed belt design
- Belt material made from EPDM for enhanced durability
- Installation requires a 3 mm zip tie
- Includes installation instructions (Sheet J)
- OE exact and OE performance rated
Product Line Details: Premium OE Stretch Fit Micro-V Belt
The Premium OE Stretch Fit Micro-V Belt line by Gates focuses on delivering original equipment (OE) exact fit and performance. This product line features stretch fit technology, which allows for easier installation without the need for belt tensioners or special tools. The use of EPDM belt material and nylon cords ensures long-lasting wear and resistance to heat and environmental factors, making it suitable for the demanding accessory drive systems in vehicles like the Cadillac CTS.
Detailed Product Description
The Gates K040365SF serpentine belt is specifically designed for the Cadillac CTS, providing a precise fit with its K-section cross design and 4-rib configuration. The belt’s EPDM construction offers resistance to cracking, heat, and wear, while the nylon cord material enhances tensile strength and flexibility. With an effective length of 36.58 inches (929 mm) and an outside circumference of approximately 37.125 inches (943 mm), this belt maintains proper tension and alignment for smooth operation of engine accessories.
Common Applications and Problem Solving
- Replacement for worn or cracked serpentine belts in Cadillac CTS models
- Eliminates belt slippage and squealing noises
- Restores proper accessory drive function including alternator, power steering, and air conditioning
- Prevents premature belt failure due to heat or environmental exposure
- Supports consistent engine performance by maintaining correct belt tension
Installation Notes and Tips
- Requires a 3 mm zip tie for proper stretch fit installation
- Follow included Sheet J installation instructions carefully
- Ensure the belt is properly seated on all pulleys before securing
- Check belt alignment and tension after installation to avoid premature wear
Quality Assurance and Warranty
Gates Premium OE Stretch Fit Micro-V Belts meet or exceed original equipment specifications for fit and performance. The K040365SF part number is OE exact and OE performance rated, ensuring compatibility and reliability for Cadillac CTS vehicles. While specific warranty details are not provided, Gates products are manufactured under strict quality control standards to deliver consistent durability and service life.
| Brand | Gates |
|---|---|
| Part Number | K040365SF |
| Position | Premium OE Stretch Fit Micro-V Belt, Air Conditioning |
| Belt Material | EPDM |
| Cord Material | Nylon |
| Cord Material | Nylon |
| Cross Section Designation | K |
| Effective Length | 36.58 |
| Effective Length | 929 |
| Installation Instructions | Sheet J |
| Installation Tools Requirements | 3 mm Zip Tie |
| Instruction Manual Included | Sheet J |
| OE Comparison Rating | OE Exact |
| OE Comparison Rating | OE Performance |
| Outside Circumference | 37.125 |
| Outside Circumference | 943 |
| Rib Quantity | 4 |
| Section | K |
| Top Width | .56 |
| Top Width | 14 |
| Type | Automotive V-Ribbed Belt (Stretch Fit) |
| Type | Automotive V-Ribbed Belt (Stretch Fit) |
| Washer Pump Included | EPDM |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2015 | Cadillac | CTS | 6.2L | V8 | GAS | Air Conditioning | Installation tool required for proper fitment.; Premium OE Stretch Fit Micro-V Belt |
| 2014 | Cadillac | CTS | 6.2L | V8 | GAS | Air Conditioning | Installation tool required for proper fitment.; Premium OE Stretch Fit Micro-V Belt |
| 2013 | Cadillac | CTS | 6.2L | V8 | GAS | Air Conditioning | Installation tool required for proper fitment.; Premium OE Stretch Fit Micro-V Belt |
| 2012 | Cadillac | CTS | 6.2L | V8 | GAS | Air Conditioning | Installation tool required for proper fitment.; Premium OE Stretch Fit Micro-V Belt |
| 2011 | Cadillac | CTS | 6.2L | V8 | GAS | Air Conditioning | Installation tool required for proper fitment.; Premium OE Stretch Fit Micro-V Belt |
| 2010 | Cadillac | CTS | 6.2L | V8 | GAS | Air Conditioning | Installation tool required for proper fitment.; Premium OE Stretch Fit Micro-V Belt |
| 2009 | Cadillac | CTS | 6.2L | V8 | GAS | Air Conditioning | Installation tool required for proper fitment.; Premium OE Stretch Fit Micro-V Belt |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.