Overview
The Crown Automotive Serpentine Belt Tensioner, part number 53032860AA, is a replacement serpentine belt tensioner for the 3.8L V6 engine in 2007 to 2011 Jeep Wrangler (JK) models.
Crown Automotive has supplied replacement Jeep parts for over 50 years and offers over 8,000 part numbers, including factory-discontinued items.
Key features
- Serpentine belt tensioner for the 3.8L V6 engine
- It fits 2007 to 2011 Jeep Wrangler (JK) models.
- It covers 2-Door and Unlimited 4-Door trims.
- Part number 53032860AA as listed by Crown Automotive
Before you buy
A serpentine belt tensioner keeps constant pressure on the drive belt so the belt grips each pulley as the engine runs. On the 3.8L V6, the tensioner also smooths the pulses from the crankshaft, which helps the belt last and keeps the accessories turning at a steady speed. When the spring or pivot wears, the belt can slip, chirp or ride off a pulley, and the alternator and water pump may run unevenly.
Tensioner wear often shows up as a squeal on startup, a pivot arm that moves unevenly or has side play, or a belt with cracks and glazed ribs. Because the belt and tensioner work together, inspect the idler pulleys and replace the belt at the same time. Keep hands clear of the pulleys while the belt is under tension, and tighten fasteners firmly before the first drive.
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 53032860AA |
| Part type | Serpentine belt tensioner |
| Engine | 3.8L V6 |
| Fitment type | Direct fit |
Vehicle fitment
It fits these vehicles:
- 2007–2011 Jeep Wrangler (JK) (70th Anniversary (2-Door), Rubicon (2-Door), Sahara (2-Door), Sport (2-Door), Unlimited 70th Anniversary (4-Door), Unlimited Rubicon (4-Door), Unlimited Sahara (4-Door), Unlimited Sport (4-Door), Unlimited X (4-Door), X (2-Door))
The list ends in 2011 and does not include the 75th Anniversary trims, later Wrangler JK years or Wrangler JL models. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
It is a direct fit, and no drilling or modification is needed. Keep hands clear of the pulleys while the belt is under tension.
What’s included
The serpentine belt tensioner.
Not included: A serpentine belt and mounting bolts are not included.
