OE Quality
60-Day Returns

Gates 90K-38385B Serpentine Belt Drive Component Kit
Overview of Gates Accessory Belt Drive Kit 90K-38385B
The Gates Accessory Belt Drive Kit 90K-38385B is designed to provide reliable serpentine belt system components for Ford and Mazda vehicles. This kit includes essential parts such as the belt, tensioner, and idler pulley, engineered to meet the specific requirements of Ford Ranger and Mazda B3000 models.
- Includes serpentine belt, tensioner assembly (part number 38385), and idler pulley (part number 38001)
- Belt outside circumference: 2245 mm (88.387 inches)
- Belt top width: 20 mm (0.807 inches)
- Compatible with Ford Ranger and Mazda B3000 accessory drive systems
- Part number 90K-38385B for precise identification and fitment
Detailed Product Description
The Gates Accessory Belt Drive Kit 90K-38385B is a comprehensive serpentine belt drive component kit designed to restore proper function to the accessory drive system of select Ford and Mazda trucks. The kit features a serpentine belt with an outside circumference of 2245 mm (88.387 inches) and a belt top width of 20 mm (0.807 inches), ensuring a precise fit for the accessory pulleys. Included in the kit are the tensioner assembly (part number 38385) and the idler pulley (part number 38001), both critical for maintaining correct belt tension and alignment. This kit is engineered to meet the specifications required for the Ford Ranger and Mazda B3000 models, providing a reliable replacement solution for worn or damaged belt drive components.
About the Gates Accessory Belt Drive Kit Line
The Gates Accessory Belt Drive Kit product line offers complete serpentine belt system solutions that include all necessary components for accessory drive maintenance. This kit line is designed to simplify repairs by providing matched parts such as belts, tensioners, and idler pulleys in one package. The 90K-38385B kit is part of this line, tailored specifically for Ford Ranger and Mazda B3000 vehicles, ensuring compatibility and ease of installation.
Common Applications and Issues Addressed
- Replacement of worn or cracked serpentine belts causing squealing or slipping
- Restoring proper belt tension to prevent accessory drive failure
- Resolving idler pulley wear that can lead to belt misalignment
- Addressing tensioner assembly malfunction that affects belt performance
- Preventing accessory component damage due to improper belt operation
Installation Notes and Tips
- Verify vehicle compatibility with Ford Ranger or Mazda B3000 before installation
- Inspect all pulleys and accessory components for wear prior to installation
- Use proper tools to relieve tension on the old belt and install the new tensioner assembly
- Ensure the belt is routed correctly according to the vehicle’s belt routing diagram
- Double-check belt tension and alignment after installation to avoid premature wear
Quality Assurance and Warranty
Gates manufactures the Accessory Belt Drive Kit 90K-38385B to meet stringent quality standards for durability and performance. Each component is engineered to OEM specifications to ensure reliable operation in Ford Ranger and Mazda B3000 vehicles. While specific warranty details may vary, Gates typically offers coverage against defects in materials and workmanship, providing confidence in the product’s longevity and function.
| Brand | Gates |
| Part Number | 90K-38385B |
| Position | Accessory Belt Drive Kit |
| Belt 1 Outside Circumference (in) | 88.387 |
| Belt 1 Outside Circumference (mm) | 2245 |
| Belt 1 Part Number | K060878 |
| Belt Top Width | .807 |
| Belt Top Width | 20 |
| Contents | Belt, Tensioner, Idler |
| Idler Pulley 1 Part Number | 38001 |
| Outside Circumference | 88.387 |
| Outside Circumference | 2245 |
| Tensioner Assembly Part Number | 38385 |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2008 | Ford | Ranger | 3.0L | V6 | GAS | N/A | {K060878, 38385, 38001}; W/A.C.; Accessory Belt Drive Kit |
| 2008 | Mazda | B3000 | 3.0L | V6 | GAS | N/A | {K060878, 38385, 38001}; W/A.C.; Accessory Belt Drive Kit |
| 2007 | Ford | Ranger | 3.0L | V6 | GAS | N/A | {K060878, 38385, 38001}; W/A.C.; Accessory Belt Drive Kit |
| 2007 | Mazda | B3000 | 3.0L | V6 | GAS | N/A | {K060878, 38385, 38001}; W/A.C.; Accessory Belt Drive Kit |
* 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.