1. Engine Crankshafts Products
  2. sku: 19961224810668793
  3. ATP 102376

ATP 102376 Harmonic Balancer 740993081258

fits make: Chevy. year: 2004–2012.

102376 Atp For Chevy Colorado 2004-2012 Harmonic Balancer

( Brand: Atp ), ( Manufacturer Part Number: 102376 ), ( Part Type: Balancer ), ( Product Type: Engine ), ( UPC: 740993081258 ), ( Fitment Type: Direct Replacement ), ( Compatible Make S : Chevrolet, Gmc, Hummer, Isuzu ), ( Compatible Model S : Colorado, Canyon, H3, H3t, I-370, I-350 ), ( Product Subtype: Harmonic Balancers ), ( Product Details: Engine Harmonic Balancer ), ( Department: Replacement )

Review ATP Chevy Colorado Harmonic Balancer fits 2004–2012

The **ATP 102376 Harmonic Balancer** is a high-performance, precision-engineered component specifically designed to replace the stock harmonic balancer in Chevrolet vehicles spanning the model years 2004 through 2012, covering a range of popular engines including the **LS1, LS2, LS3, and LS6** configurations. Engineered to address the common issues associated with worn or failing harmonic balancers such as excessive vibration, rattling noises, and potential engine damage this aftermarket part is crafted from high-grade **steel and rubber composite materials**, ensuring superior durability and longevity compared to OEM alternatives. The balancer features a **robust dual-mass design**, which effectively isolates engine vibrations, reducing strain on the crankshaft and connected components while maintaining smooth operation under high-performance driving conditions. Its **precision-balanced construction** minimizes torsional vibrations, a critical factor in preventing premature wear on the engine s drivetrain, particularly in high-revving or modified applications. The **ATP 102376** is built to meet or exceed factory specifications, incorporating a **tightly sealed rubber insert** that resists oil leakage and maintains optimal damping performance over extended use. Whether installed in a stock vehicle or a heavily modified performance setup, this harmonic balancer delivers reliable protection against vibration-induced stress, contributing to a quieter, more stable ride and extended engine life. Backed by ATP s reputation for quality and performance, this part is an ideal upgrade for enthusiasts seeking to enhance their vehicle s drivability and prevent costly repairs associated with harmonic balancer failure.

### **Pros and Cons of buying a ATP 102376 Harmonic Balancer for Chevy (2004 2012)**

#### **Pros:**

1. **Compatibility** The ATP 102376 is specifically designed for Chevy engines from 2004 to 2012, ensuring a proper fit without modification.

2. **Durability** ATP is a reputable brand known for manufacturing high-quality aftermarket parts, including harmonic balancers that are built to last longer than OEM units.

3. **Reduced Vibration** A well-functioning harmonic balancer dampens engine vibrations, improving drivability and reducing wear on connected components like the crankshaft and transmission.

4. **Prevents Premature Failure** Many OEM harmonic balancers fail due to wear, cracking, or rubber degradation. Replacing it with an ATP unit can prevent costly engine damage from a seized or broken balancer.

5. **Easier Installation** ATP parts are often designed for straightforward installation, reducing labor time compared to aftermarket alternatives that may require additional machining or adjustments.

6. **Cost-Effective Alternative to OEM** While not always cheaper than an OEM replacement, ATP offers a reliable balance between price and performance, avoiding the potential for counterfeit or low-quality parts.

7. **Warranty Coverage** ATP typically provides a warranty (often 1 2 years), offering some protection against early failure.

#### **Cons:**

1. **Higher Upfront Cost** Compared to budget aftermarket brands, ATP harmonic balancers may be more expensive, though they justify the price with better quality.

2. **Potential for Counterfeit Parts** Like many reputable brands, ATP parts can be counterfeited. Purchasing from authorized dealers or trusted online retailers (e.g., RockAuto, Summit Racing) minimizes this risk.

3. **Installation Complexity** While generally straightforward, replacing a harmonic balancer requires removing the serpentine belt, pulleys, and possibly the crankshaft pulley, which may be challenging for inexperienced DIYers.

4. **Limited Availability** Depending on the region, ATP parts may not be as widely stocked as OEM or other aftermarket brands, requiring advance ordering.

5. **Mixed Reviews on Longevity** Some users report that while ATP balancers improve upon OEM quality, they may still fail prematurely if the engine has severe internal issues (e.g., crankshaft misalignment or excessive vibration).

6. **Not a Permanent Fix for Underlying Problems** If the engine has other issues (e.g., bent crankshaft, worn bearings), replacing just the harmonic balancer won t resolve those problems.

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### **Conclusion**

The ATP 102376 harmonic balancer is a strong choice for Chevy engines from 2004 to 2012 due to its reliability, compatibility, and durability. It offers a significant improvement over many OEM units and budget alternatives, making it a worthwhile investment for those prioritizing long-term performance and peace of mind. However, the higher cost and potential for counterfeit parts require careful consideration, especially for DIYers or those on a tight budget.

If the engine is otherwise healthy and the balancer is failing (evidenced by wobbling, cracking, or excessive vibration), ATP is a recommended option. For those seeking a more budget-friendly solution, lower-end aftermarket brands may suffice, but they come with increased risk of early failure.

**Final Recommendation:**

Purchase the ATP 102376 from a trusted retailer (e.g., RockAuto, Summit Racing, or a local auto parts store with a return policy). If installing yourself, ensure you have the proper tools and follow manufacturer guidelines. For engines with known vibration issues or high mileage, consider also inspecting the crankshaft pulley and crankshaft for damage. If in doubt, consult a mechanic to confirm the balancer is the sole issue.

Details:

Each component is precision machined and assemblies are dynamically balanced for the best performance. Includes wood ruff keys making installation smooth and easy if original key is damaged or lost. ATP Growers Harmonic Balancers are a high quality OE replacement alternative. Dynamically balanced for proper absorption of the crankshaft vibrations.

Where needed, a wood ruff key is included in the box to replace damaged or lost piece. Precision machined to zero runt providing smooth performance at all engine speeds. Harmonic Balancer 102376 by ATP.

part #: 102376 prices

  • $124.98-$185.33

specifications cranshafengin:

  • for makes: Chevy
  • for years: 2004-2012
  • brand: Atp
  • mpn: 102376
  • part type: Balancer
  • product type: Engine
  • upc: 740993081258
  • fitment type: Direct Replacement
  • compatible make s : Chevrolet, Gmc, Hummer, Isuzu
  • compatible model s : Colorado, Canyon, H3, H3t, I-370, I-350
  • product subtype: Harmonic Balancers
  • product details: Engine Harmonic Balancer
  • department: Replacement

returns cranshafengin:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller

shipping cranshafengin:

  • transit: 3-7 Days
  • cost: $32.62
  • service: FedEx Ground / FedEx Home Delivery
  • class: Standard
  • carrier: FedEx
  • type: Calculated

payments cranshafengin:

  • credit card: Discover
  • wallet: Paypal
  • other

seller cranshafengin:

  • # reviews: 155930
  • city: Carson, California
  • rating: 99.1%

general cranshafengin:

  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
  • condition: New

offer cranshafengin:

  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: April 21, 2026
  • quantity: 2
for makes: chevy, for years: 2004-2012, part type: balancer, product type: engine, fitment type: direct replacement, compatible make s: chevrolet, gmc, hummer, isuzu, compatible model s: colorado, canyon, h3, h3t, i-370, i-350, product subtype: harmonic balancers, product details: engine harmonic balancer, department: replacement,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19961224810668793,
Atp 102376 Is Similar To:
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3 offers $124.98–$185.33 USD
  • New. Offer #1 priced at $124.98 + $22.01 shipping estimate = $146.99* total. Engine Harmonic Balancer.+$22.01 shipping
  • New. Offer #2 priced at $185.33 + $0.00 shipping estimate = $185.33* total. FREE SHIPPING
  • New. Offer #3 priced at $128.64 + $32.62 shipping estimate = $161.26* total. Where needed, a woodruff key is included in the box to replace a damaged or lost piece. Harmonic Balancer ( ) by ATP .+$32.62 shipping

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