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Features & Benefits:
OE Number: 594-716, 12620312, 12662037, 12684590
Vehicle Information:
Cadillac Escalade 2015-2020 V8 6.2L
Cadillac Escalade ESV 2015-2020 V8 6.2L
Chevrolet Cheyenne 2014-2015 V8 5.3L
Chevrolet Cheyenne 2018 V8 5.3L
Chevrolet Cheyenne 2014-2015 V8 6.2L
Chevrolet Express 2500 2018-2019 V6 4.3L
Chevrolet Express 3500 2018-2019 V6 4.3L
Chevrolet Express Cargo 2018-2019 V6 4.3L
Chevrolet Silverado 1500 2014-2017 V6 4.3L
Chevrolet Silverado 1500 2019 V6 4.3L
Chevrolet Silverado 1500 2014-2018 V8 5.3L Eng Code: L83
Chevrolet Silverado 1500 2019 V8 5.3L
Chevrolet Silverado 1500 2014-2015 V8 6.2L
Chevrolet Silverado 1500 2019 V8 6.2L
Chevrolet Silverado 1500 LD 2019 V8 5.3L Eng Code: L83
Chevrolet Silverado 2500 2017 V6 4.3L
Chevrolet Silverado 2500 2017 V8 5.3L
Chevrolet Suburban 2015-2020 V8 5.3L
Chevrolet Suburban 2020 V8 6.2L
Chevrolet Tahoe 2015-2020 V8 5.3L
Chevrolet Tahoe 2020 V8 6.2L
Chevrolet Tahoe 2018 V8 6.2L
GMC Savana 2500 2018-2019 V6 4.3L
GMC Savana 3500 2018-2019 V6 4.3L
GMC Sierra 2020 V8 5.3L
GMC Sierra 2015-2018 V8 5.3L
GMC Sierra 2014-2017 V8 6.2L
GMC Sierra 2020 V8 6.2L
GMC Sierra 1500 2014-2019 V6 4.3L
GMC Sierra 1500 2019 V8 5.3L
GMC Sierra 1500 2014-2018 V8 5.3L
GMC Sierra 1500 2014-2019 V8 6.2L
GMC Sierra 1500 Limited 2019 V8 5.3L
GMC Yukon 2015-2020 V8 5.3L
GMC Yukon 2015-2018,2020 V8 6.2L
GMC Yukon XL 2019-2020 V8 5.3L
GMC Yukon XL 2015-2018 V8 5.3L
GMC Yukon XL 2015-2020 V8 6.2L
Symptoms of a Bad Harmonic Balancer
Engine Vibrations
The harmonic balancer’s job is to dampen vibrations applied to the crankshaft. As a result, when the balancer fails, you may feel a significant vibration from the engine compartment.
Noticeable Harmonic Balancer Wobble
When the rubber isolator begins to deteriorate, the balancer usually begins to separate, creating a noticeable wobble when the engine is running.
Unusual Noises
A faulty balancer can result in a knocking, rattling, or squeaking sound that corresponds with engine speed. In some cases, the noise is bad enough to be mistaken for an internal engine problem.
Also, a balancer that’s beginning to fail can cause abnormal movement from the drive belt or automatic drive belt tensioner, resulting in clicking or squealing noises when the engine is running.
Illuminated Check Engine Light
Your car’s primary computer, which is often referred to as the powertrain control module (PCM), relies on a crankshaft position (CKP) sensor signal to determine crankshaft position and speed.
The CKP sensor reads a toothed or notched wheel that’s usually located on the crankshaft or harmonic balancer. If the harmonic balancer fails, it can cause the sensor to create an abnormal signal, prompting the PCM to turn on the check engine light.
Visible Wear or Damage
If you take a look at the harmonic balancer, you might be able to see visible wear or damage. For example, the rubber insulator may have deteriorated, resulting in a separation between the hub and outer portion of the balancer.
| Item Specifics | |
|---|---|
| Brand | gdcarpartsin |
| Items Included | 1 Harmonic Balancer |
| Manufacturer Part Number | GD133907CAR |
| OE/OEM Part Number | 594-716 |
| Material | Steel |
| Center Bolt Included | No |
| Drive Belt Type | Serpentine |
| Keyway Type | Yes |
| Universal Fitment | No |
| Manufacturer Warranty | 1 Year |
| Finish | Black |
| Degree Markings | Yes |
| Interchange Part Number | 12620312 |
| Mounting Hardware Included | No |
| Superseded Part Number | 12662037, 12684590 |
| Mounting Hole Quantity | 1 |
| Compatible Makes | Cadillac, Chevrolet, GMC |
| Model | Escalade, Escalade ESV, Cheyenne, Express 2500, Express 3500 |
| Model-2 | Silverado 1500, Silverado 1500 LD, Silverado 2500, Suburban |
| Model-3 | Savana 2500, Savana 3500, Sierra, Sierra 1500 |
| Model-4 | Yukon, Yukon XL |
| Engine | V6 4.3L, V8 5.3L, V8 6.2L |
| Year | 2014-2020 |
| Fitment Type | Direct Replacement |

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For Chevrolet Silverado GMC Sierra 1500 4.3L 5.3L 6.2L Engine Harmonic Balancer
Features & Benefits:
OE Number: 594-716, 12620312, 12662037, 12684590
Vehicle Information: Cadillac Escalade 2015-2020 V8 6.2L Symptoms of a Bad Harmonic Balancer
Engine Vibrations
The harmonic balancer’s job is to dampen vibrations applied to the crankshaft. As a result, when the balancer fails, you may feel a significant vibration from the engine compartment.
Noticeable Harmonic Balancer Wobble
When the rubber isolator begins to deteriorate, the balancer usually begins to separate, creating a noticeable wobble when the engine is running.
Unusual Noises
A faulty balancer can result in a knocking, rattling, or squeaking sound that corresponds with engine speed. In some cases, the noise is bad enough to be mistaken for an internal engine problem.
Also, a balancer that’s beginning to fail can cause abnormal movement from the drive belt or automatic drive belt tensioner, resulting in clicking or squealing noises when the engine is running.
Illuminated Check Engine Light
Your car’s primary computer, which is often referred to as the powertrain control module (PCM), relies on a crankshaft position (CKP) sensor signal to determine crankshaft position and speed.
The CKP sensor reads a toothed or notched wheel that’s usually located on the crankshaft or harmonic balancer. If the harmonic balancer fails, it can cause the sensor to create an abnormal signal, prompting the PCM to turn on the check engine light.
Visible Wear or Damage
If you take a look at the harmonic balancer, you might be able to see visible wear or damage. For example, the rubber insulator may have deteriorated, resulting in a separation between the hub and outer portion of the balancer.
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3. If you have not received your shipment within 15 days from payment, please contact!
1. If you have a defected item under warranty, you can return it with 30 days after the pruchase date.
2. All returned items must be in the original packaging and you must provide us with the shipping tracking number, specific reason for the return, and item custom lable.
3. We will refund your full winning bid amount, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER both Buyer and Seller cancel the transaction from eBay. OR, you may choose to have a replacement.
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2. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.
1. We accept multiple payment methods.
2. If you want cancel orders or change address pls contact us within 6 hours after payment, or we are not responsible for shipping a replacement.
3. Payment must be received within 10 days as auction ended or order might be delayed.
1. We stand behind every product we sell.
2. We define the item as defective only if it doesn't function as described.
3. It is the buyer's responsibility to understand the item description before bidding.
4. Man-made damage by abuse or wrong operation is not covered by this warranty.
5. No product liability insurance is assumed.
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