OE Quality
60-Day Returns

Cloyes 9-5258 Engine Timing Belt Tensioner Adjuster - Front
Overview of Cloyes Engine Timing Belt Tensioner Adjuster 9-5258
The Cloyes 9-5258 engine timing belt tensioner adjuster is designed specifically for select Dodge and Mitsubishi models, including the 3000GT, Diamante, Montero, and Stealth. This cast, hydraulic/spring chain type tensioner ensures precise timing belt tension without manual adjustment, providing reliable engine performance.
- Constructed from durable cast material for long-lasting use
- Hydraulic/spring chain type for automatic tension adjustment
- Non-manually adjustable with activation pin mechanism
- Gray color finish with a width of 2.28 inches and height of 1.19 inches
- Includes spring but does not include bolts
- Designed with two mounting holes, each with a 0.32 inch inside diameter
- Specific fit for Dodge 3000GT, Mitsubishi Diamante, Montero, and Stealth models
Detailed Product Description
The Cloyes 9-5258 timing belt tensioner adjuster is engineered to maintain optimal tension on the timing belt, critical for engine timing and performance. Its cast construction offers strength and resistance to wear, while the hydraulic/spring chain type mechanism automatically adjusts tension during engine operation. The activation pin ensures precise engagement without the need for manual adjustment, reducing installation complexity and potential errors. With a compact size of 2.28 inches in width and 1.19 inches in height, this tensioner fits securely in the designated mounting points on compatible Dodge and Mitsubishi engines.
Compatible Vehicles and Applications
- Dodge 3000GT engine timing belt tensioner replacement
- Mitsubishi Diamante timing belt tensioner adjuster installation
- Mitsubishi Montero timing belt system maintenance
- Mitsubishi Stealth engine timing belt tensioner upgrade
Common Issues Addressed by This Timing Belt Tensioner
- Eliminates slack in the timing belt to prevent engine misfires
- Prevents premature belt wear caused by improper tension
- Reduces risk of timing belt slippage and engine damage
- Maintains consistent belt tension under varying engine loads
- Improves overall engine timing accuracy and reliability
Installation Notes and Tips
Installation of the Cloyes 9-5258 tensioner requires removal of the old tensioner and proper alignment with the two mounting holes, each with a 0.32 inch inside diameter. Bolts are not included, so ensure you have the correct hardware for your specific vehicle. Since this tensioner is not manually adjustable, verify the activation pin is properly engaged during installation. It is recommended to follow the vehicle manufacturer’s service manual for torque specifications and installation procedures to ensure optimal performance.
Quality Assurance and Warranty
Cloyes manufactures this timing belt tensioner adjuster to meet or exceed OEM specifications for durability and performance. The cast material and hydraulic/spring mechanism are tested for reliability under typical engine operating conditions. While specific warranty details are not provided here, Cloyes products generally come with a limited warranty against defects in materials and workmanship. Consult the product packaging or Cloyes directly for exact warranty terms.
| Brand | Cloyes |
|---|---|
| Part Number | 9-5258 |
| Activation Type | Activation Pin |
| Adjustable | No |
| Bolts Included | No |
| Chain Type | Hydraulic/Spring |
| Color | Gray |
| Height | 1.19" |
| Manually Adjustable | No |
| Material | Cast |
| Mount Hole Inside Diameter | 0.32"/0.32" |
| Mounting Hole Quantity | 2.0 |
| Spring Included | Yes |
| Universal Or Specific Fit | Specific |
| Width | 2.28" |
This part fits 22 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1999 | Mitsubishi | 3000GT | 3.0L | V6 | Front | |
| 1998 | Mitsubishi | 3000GT | 3.0L | V6 | Front | |
| 1997 | Mitsubishi | 3000GT | 3.0L | V6 | Front | |
| 1996 | Dodge | Stealth | 3.0L | V6 | Front | |
| 1996 | Mitsubishi | 3000GT | 3.0L | V6 | Front | |
| 1996 | Mitsubishi | Montero | 3.5L | V6 | Front | |
| 1995 | Dodge | Stealth | 3.0L | V6 | Front | |
| 1995 | Mitsubishi | 3000GT | 3.0L | V6 | Front | |
| 1995 | Mitsubishi | Diamante | 3.0L | V6 | Front | |
| 1995 | Mitsubishi | Montero | 3.5L | V6 | Front | |
| 1994 | Dodge | Stealth | 3.0L | V6 | Front | |
| 1994 | Mitsubishi | 3000GT | 3.0L | V6 | Front | |
| 1994 | Mitsubishi | Diamante | 3.0L | V6 | Front | |
| 1994 | Mitsubishi | Montero | 3.5L | V6 | Front | |
| 1993 | Dodge | Stealth | 3.0L | V6 | Front | |
| 1993 | Mitsubishi | 3000GT | 3.0L | V6 | Front | |
| 1993 | Mitsubishi | Diamante | 3.0L | V6 | Front | |
| 1992 | Dodge | Stealth | 3.0L | V6 | Front | |
| 1992 | Mitsubishi | 3000GT | 3.0L | V6 | Front | |
| 1992 | Mitsubishi | Diamante | 3.0L | V6 | Front | |
| 1991 | Dodge | Stealth | 3.0L | V6 | Front | |
| 1991 | Mitsubishi | 3000GT | 3.0L | V6 | Front |
* 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.