How to Service a Belt Tensioner on a 3.7L Engine on 2009 Jeep Commander?

Removing the accessory drive belt is the first thing to do when servicing the drive belt tensioner in a 3.7L engine. After that, take out the tensioner assembly from the engine front cover. You need to know that due to the high amount of spring tension, the automatic tensioner should be treated as an assembly; it cannot be disassembled, except for the pulley.

OEM 2009 Jeep Commander Belt Tensioner

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2 Belt Tensioners found

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2009 Jeep Commander Belt Tensioner Part Number: 53030958AG
$88.72 MSRP: $135.00
You Save: $46.28 (35%)
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Product Specifications
- Other Name: Tensioner - Belt; Accessory Drive Belt Tensioner Assembly; Serpentine Tensioner; Tensioner; Tensioner Belt
- Replaces: 53030958AE, 53030958AD
- Item Weight: 2.70 Pounds
- Item Dimensions: 6.9 x 7.2 x 7.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 53030958AG
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
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Fits the following 2009 Jeep Commander Submodels:
- 65th Anniversary Edition, Base, Limited, Sport | 3.7L V6, 6 Cyl 3.7 L GAS, 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS
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2009 Jeep Commander Belt Tensioner Part Number: 4861660AA
$124.65 MSRP: $188.00
You Save: $63.35 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Tensioner - Belt; Accessory/Drive Tensioner; Serpentine Kit; Automatic Pulley; Serpentine Tensioner; Tensioner; Tensioner Belt; Drive Belt Tensioner
- Replaces: 4593817AB
- Item Weight: 2.60 Pounds
- Item Dimensions: 4.0 x 3.8 x 8.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4861660AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2009 Jeep Commander Submodels:
- Limited, Overland, Sport | 8 Cyl 5.7 L GAS

2009 Jeep Commander Belt Tensioner Parts and Q&A

Q: How to Service a Belt Tensioner on a 3.7L Engine on 2009 Jeep Commander?
A: Removing the accessory drive belt is the first thing to do when servicing the drive belt tensioner in a 3.7L engine. After that, take out the tensioner assembly from the engine front cover. You need to know that due to the high amount of spring tension, the automatic tensioner should be treated as an assembly; it cannot be disassembled, except for the pulley.