1345A031 Mitsubishi TENSIONER,ALTNTR BELT AUTO, Price: 72.20$, Weight: 1.04kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Mitsubishi |
1345A031 |
TENSIONER,ALTNTR BELT AUTO |
1 |
1.04 |
15-20 |
72.20$ |
Originals
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Mitsubishi |
TENSIONER,ALTNTR BELT AUTO
|
1 |
1.196
|
2-3
|
59.82$
|
Compatibility
| Frame | Market | Model | Model Year From | Model Year To | Modification | Diagram |
|---|---|---|---|---|---|---|
| GF0# | General (EXPORT) | GF4W | 11.2012 | 12.2022 | 3000 | View |
Automatic Alternator Belt Tensioner
This component keeps the alternator drive belt at the correct tension so the charging system works smoothly ⚙️. It is needed because belts naturally stretch with heat, age, and engine load changes. With the right tension, the alternator can generate steady power for the battery, lights, ECU, and accessories.
How It Works
Inside the unit, a spring-loaded arm and damping mechanism apply constant pressure to the belt. As the belt expands and contracts, the arm moves to maintain stable tension. This reduces belt slip, vibration, and noise, especially during cold starts or when switching electrical loads on and off.
Signs of Failure & What Happens If It Breaks
If the tensioner weakens or the bearing wears, the belt can squeal, flutter, or run off-line. A broken or seized unit may cause belt slip, low charging, battery warning light, overheating on some setups, or sudden loss of power steering assist depending on the belt layout . Ignoring it can also damage the belt and pulleys.
Compatibility
- Mitsubishi Outlander