1. Engine Crankshafts Products
  2. sku: 19230356313727721
  3. POWERBOND DAYCO SX-2350

POWERBOND BY DAYCO SX-2350 Engine Harmonic Balancer Cylinder 5.9L V8 Du

fits model: Dart. make: Dodge. year: 1974–1976.

Sx-2350 Powerbond By Dayco Engine Harmonic Balancer For 1974-1976 Dodge Dart 5.9l V8 Cylinder Du

( Brand: Powerbond By Dayco ), ( Manufacturer Part Number: SX-2350 ), ( Item Weight: 8.3800 ), ( Ipn: C850 54-16 ), ( Placement On Vehicle: Engine Cylinder Block ), ( Compatible Year: 1976 1975 1974 ), ( Core Charge: Free No Core Charge ), ( Type: Engine Harmonic Balancer ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Dayco Engine Harmonic Balancer ), ( Timing Marks: Yes ), ( Overall Width: 2.540 In / 64.50 Mm ), ( Hardware Included: No ), ( Ring Width: 1.182 In / 30.00 Mm ), ( Counterweight Balance: Ring Weighted ), ( Outer Ring Material: Cast Iron ), ( Overall Outside Diameter: 7.099 In / 180.30 Mm ), ( Nose Outside Diameter: 2.188 In / 55.55 Mm ), ( Crank Bore: 1.531 In / 38.88 Mm )

Review POWERBOND BY DAYCO Engine Harmonic Balancer Dodge 5.9l V8 Cylinder Du fits DART 1974–1976

The **Powerbond Dayco SX-2350 Engine Harmonic Balancer** is a high-performance, precision-engineered replacement part designed specifically for the **1974 1976 Dodge Dart** equipped with the legendary **5.9L (350 cubic inch) Magnum V8** engine. This critical component plays a vital role in dampening the torsional vibrations generated by the crankshaft, ensuring smoother operation, reduced engine noise, and enhanced longevity for your powerful V8. Crafted from **high-strength steel**, the SX-2350 harmonic balancer features a **robust rubber insert** that is engineered to withstand the intense forces produced by the Magnum s high-performance capabilities, whether you re running stock power or pushing it with aftermarket modifications. The balancer s **precision-machined mounting hub** ensures a secure and accurate fit, preventing wobble or misalignment that could lead to premature wear on the crankshaft or related drivetrain components. Ideal for both restoration projects and high-mileage vehicles, this balancer is built to deliver **reliable performance** under demanding conditions, helping to maintain the iconic smoothness and power of the 5.9L V8 while protecting critical engine components from excessive stress. Whether you re restoring a classic Dart to its original glory or upgrading an existing engine for better reliability, the **Powerbond Dayco SX-2350** is a proven, durable solution that combines quality craftsmanship with the durability needed for long-term use.

**Pros and Cons of Buying a Powerbond Dayco SX-2350 Engine Harmonic Balancer for a 1974 1976 Dodge Dart with a 5.9L V8**

### **Pros:**

The Powerbond/Dayco SX-2350 harmonic balancer is a well-regarded aftermarket replacement for the original equipment (OEM) harmonic balancer on the 5.9L V8 engines found in the 1974 1976 Dodge Dart. Here are the key advantages:

1. **Compatibility and Fitment** The SX-2350 is specifically designed for the 5.9L V8 (360 cubic inch) engines used in these years of the Dart, ensuring a proper fit without modification. It replaces the stock harmonic balancer seamlessly, including the mounting flange and bolt pattern.

2. **Durability and Performance** Powerbond/Dayco harmonic balancers are known for their robust construction, often featuring a reinforced rubber or polyurethane center section that resists cracking and wear better than many OEM parts. This can extend the life of the balancer compared to a worn-out original unit, reducing vibration and potential damage to the crankshaft or engine mounts.

3. **Reduced Vibration** A failing harmonic balancer can cause excessive vibration, which can lead to loose components, worn mounts, or even damage to the engine s front cover or timing components. The SX-2350 is designed to dampen vibration effectively, improving drivability and reducing stress on the engine bay.

4. **Cost-Effective Replacement** Compared to the cost of labor for a full engine rebuild or replacement of damaged components due to a failing balancer, the SX-2350 is a relatively inexpensive fix. It is priced lower than many OEM replacements and often comes with a warranty (typically 12 24 months), providing peace of mind.

5. **Ease of Installation** The balancer is a straightforward bolt-on replacement. No special tools or modifications are required beyond removing the old balancer and securing the new one with the included bolts. This makes it an accessible DIY project for those with basic mechanical skills.

6. **Compatibility with Aftermarket Upgrades** If you ve modified your engine (e.g., performance camshafts, headers, or turbocharging), a high-quality harmonic balancer like the SX-2350 can help mitigate the increased vibration that often accompanies these changes.

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### **Cons:** While the Powerbond/Dayco SX-2350 is a solid choice, there are some potential drawbacks to consider:

1. **Lifespan Limitations** Like all harmonic balancers, the SX-2350 is not a permanent solution. The rubber or polyurethane center will eventually degrade due to heat, vibration, and age, especially in high-performance or heavily modified engines. Expect it to last 50,000 100,000 miles under normal conditions, though aggressive driving or extreme heat may reduce this lifespan.

2. **Potential for Premature Failure** Some users report that aftermarket balancers, even from reputable brands like Powerbond/Dayco, can fail prematurely if the engine has excessive vibration (e.g., due to worn mounts, a bent crankshaft, or a loose flywheel). If the underlying causes of vibration aren t addressed, the balancer may wear out faster.

3. **Quality Variability** While Powerbond/Dayco is a trusted brand, there is a risk of purchasing a counterfeit or lower-quality duplicate, especially if buying from untrusted sellers. Always verify the authenticity of the part and purchase from reputable dealers or authorized distributors.

4. **Limited Customization** The SX-2350 is a standard replacement and does not offer custom tuning options (e.g., different damping characteristics for high-RPM applications). If you re running extreme power levels (e.g., 1,000 horsepower), you may need a specialized balancer designed for high-performance applications.

5. **Installation Challenges** While the installation is generally simple, some older engines may have rusted or seized bolts on the balancer flange. In such cases, penetrating oil and careful removal may be necessary. If the crankshaft pulley or keyway is damaged, the balancer may not seat properly, requiring additional attention.

6. **Warranty Limitations** Most aftermarket balancers come with a limited warranty (e.g., 12 24 months). If the balancer fails within this period due to a manufacturing defect, you can return it for replacement or refund. However, if failure occurs due to abuse (e.g., extreme heat, improper installation, or engine modifications), the warranty may not cover it.

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### **Conclusion:**

The Powerbond/Dayco SX-2350 harmonic balancer is an excellent choice for replacing the stock unit on a 1974 1976 Dodge Dart with a 5.9L V8. It offers a balance of affordability, durability, and ease of installation, making it a practical solution for reducing vibration and preventing further engine damage. The balancer is well-suited for daily driving, light modifications, and even some performance applications, provided the engine s mounts and related components are in good condition.

However, it is not a "forever" part and will eventually require replacement. If you re running a heavily modified or high-performance engine, consider whether a more robust balancer (e.g., one designed for high-RPM applications) might be warranted. Always purchase from a trusted source to avoid counterfeit parts, and ensure the engine s mounts and flywheel are in good condition to maximize the balancer s lifespan.

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### **Recommendation:**

For the average owner of a 1974 1976 Dodge Dart with a 5.9L V8, the **Powerbond/Dayco SX-2350 harmonic balancer is highly recommended**. It is a cost-effective, reliable replacement that will significantly reduce vibration and protect the engine from potential damage. If you re planning to keep the vehicle for the long term or have made performance modifications, consider pairing this balancer with a thorough inspection of the engine mounts, flywheel, and crankshaft to ensure optimal performance and longevity.

If you re unsure about installation or encounter resistance when removing the old balancer, consult a mechanic to avoid damaging the crankshaft or engine components. Regularly check the balancer for cracks or excessive wear, and replace it proactively if vibration becomes noticeable.

Details:

Dayco Engine Harmonic Balancer for 1974-1976 Dodge Dart 5.9L V8 Cylinder du: Status: In Stock.

specifications cranshafengin:

  • for models: Dart
  • for makes: Dodge
  • for years: 1974-1976
  • brand: Powerbond By Dayco
  • mpn: Sx-2350
  • item weight: 8.3800
  • ipn: C850 54-16
  • placement on vehicle: Engine Cylinder Block
  • compatible year: 1976 1975 1974
  • core charge: Free No Core Charge
  • type: Engine Harmonic Balancer
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Dayco Engine Harmonic Balancer
  • timing marks: Yes
  • overall width: 2.540 In / 64.50 Mm
  • hardware included: No
  • ring width: 1.182 In / 30.00 Mm
  • counterweight balance: Ring Weighted
  • outer ring material: Cast Iron
  • overall outside diameter: 7.099 In / 180.30 Mm
  • nose outside diameter: 2.188 In / 55.55 Mm
  • crank bore: 1.531 In / 38.88 Mm

offer cranshafengin:

  • options: Ship-to-home
  • quantity: 4
  • sold: 0
  • started: March 8, 2026
  • availability: In Stock

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

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seller cranshafengin:

  • city: Indianapolis, Indiana
  • rating: 99.5%
  • # reviews: 630267

shipping cranshafengin:

  • cost: $0.00
  • service: Standard, Expedited
  • transit: 3-5 Days
  • class: Standard, Expedited
  • type: Fixed

general cranshafengin:

  • condition: New
  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
for models: dart, for makes: dodge, for years: 1974-1976, item weight: 8.3800, placement on vehicle: engine cylinder block, compatible year: 1976 1975 1974, core charge: free no core charge, type: engine harmonic balancer, fitment type: direct replacement, bundle description: 1 pc genuine dayco engine harmonic balancer, timing marks: yes, overall width: 2.540 in / 64.50 mm, hardware included: no, ring width: 1.182 in / 30.00 mm, counterweight balance: ring weighted, outer ring material: cast iron, overall outside diameter: 7.099 in / 180.30 mm, nose outside diameter: 2.188 in / 55.55 mm, crank bore: 1.531 in / 38.88 mm,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19230356313727721,
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