Belt Tensioner With Pulley For Jeep Wrangler TJ 4.0L Durable Aluminum Replacement Part
Upgrade your Jeep powertrain with a durable aluminum belt tensioner assembly featuring a pulley, precision-made for the Jeep Wrangler TJ with a 4.0L engine (2000–2006) and the Grand Cherokee WJ 4.0L (1999–2004). This replacement part provides consistent belt tension to reduce slippage, belt wear, and squeal, helping your cooling, charging, and accessory systems perform reliably under demanding off-road and daily driving conditions. Crafted from sturdy aluminum, it stands up to heat, vibration, and long-term use while delivering smooth, quiet operation. The pulley has a 70 mm outside diameter and a 17 mm bearing bore, designed for a V-Ribbed belt and one mounting point for straightforward installation. This tensioner replaces 04854089A and 04854089AB and is associated with reference numbers 4854089AB, 38163, 89245, 49256, JE1414611, SK89245. Professional installation is highly recommended. Instructions are not included.
Benefits & Tips
- Restore and maintain proper belt tension on 4.0L Jeep systems to prevent belt slip, squealing, and unexpected accessory failures during climbs or long drives.
- Choose this aluminum replacement for improved durability over time, reduced wear, and reliable performance in hot engine bays.
- Use during routine maintenance or belt service to extend belt life and keep accessories like the alternator and power steering operating smoothly.
Product specifications
- Application: Jeep Wrangler TJ L6 4.0L 2000–2006; Jeep Grand Cherokee WJ L6 4.0L 1999–2004
- Material: Aluminum
- Model Name/References: 04854089A, 04854089AB
- Origin: Mainland China
- Belt Type: V-Ribbed
- Outside Diameter: 70 mm
- Width: 25 mm
- Bearing Bore Inside Diameter: 17 mm
- Pulley Quantity: 1
- Number of Mounting Holes: 1
- Reference Numbers: 04854089A, 04854089AB, 4854089AB, 38163, 89245, 49256, JE1414611, SK89245
- Notes: Professional installation highly recommended; Instructions not included.
Package includes:
- 1 x Belt Tensioner Assembly with Pulley
Warnings/Reminders
Professional installation is highly recommended. Instructions are not included. Ensure compatibility with your specific model: Jeep Wrangler TJ L6 4.0L (2000–2006) or Jeep Grand Cherokee WJ L6 4.0L (1999–2004).
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