1. Engine Crankshafts Products
  2. sku: 19549033883777721
  3. POWERBOND DAYCO SX-1724

POWERBOND BY DAYCO SX-1724 Engine Harmonic Balancer 5.7L V8

fits model: R10, Suburban. make: Chevrolet. year: 1987–1988.

Sx-1724 Powerbond By Dayco Engine Harmonic Balancer For 1987-1988 Chevrolet R10 Suburban 5.7l V8 Av

( Brand: Powerbond By Dayco ), ( Manufacturer Part Number: SX-1724 ), ( Item Weight: 11.6700 ), ( Ipn: C745 16-39 ), ( Placement On Vehicle: Engine Cylinder Block ), ( Compatible Model: R10 Suburban ), ( Compatible Year: 1988 1987 ), ( 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: 2.347 In / 59.60 Mm ), ( Hardware Included: No ), ( Ring Width: 1.523 In / 38.68 Mm ), ( Counterweight Balance: Neutral, No Counterweight ), ( Outer Ring Material: Steel ), ( Overall Outside Diameter: 7.953 In / 202.00 Mm ), ( Nose Outside Diameter: 1.762 In / 44.75 Mm ), ( Crank Bore: 1.245 In / 31.60 Mm )

Review POWERBOND BY DAYCO Engine Harmonic Balancer Chevrolet 5.7l V8 Av fits SUBURBAN R10 1987–1988

The **Powerbond Dayco SX-1724 Engine Harmonic Balancer** is a high-performance, precision-engineered replacement part designed specifically for the **1987-1988 Chevrolet R10 Suburban** equipped with the legendary **5.7L (350 cubic inch) V8 engine**, including variants such as the **L34, L35, and L74** configurations. This aftermarket harmonic balancer is crafted to deliver superior vibration damping, enhanced durability, and improved drivability compared to the stock unit, which is notorious for wear, cracking, and premature failure especially under high-performance or towing applications. Engineered from **high-strength, heat-treated steel** and reinforced with a **multi-layered rubber insert**, the SX-1724 balances the torsional forces generated by the crankshaft, reducing harshness, eliminating unwanted engine shake, and minimizing stress on the crankshaft and connecting rods. Its **precision-machined surface** ensures a perfect fit on the crankshaft flange, while the **robust rubber compound** is formulated to withstand extreme temperatures, high RPMs, and heavy loads, making it an ideal upgrade for both daily drivers and enthusiasts pushing their trucks beyond stock specifications. Whether you're hauling heavy loads, towing trailers, or simply seeking to eliminate the annoying vibration and rattling associated with a failing OEM balancer, the Powerbond SX-1724 offers a reliable, long-lasting solution that restores smooth operation and protects critical engine components. Backed by Dayco s reputation for quality and performance, this harmonic balancer is a straightforward yet impactful modification that enhances both the comfort and longevity of your 5.7L V8-powered Suburban.

The Powerbond Dayco SX-1724 engine harmonic balancer is a popular aftermarket replacement for the stock harmonic balancer on the 5.7L V8 (LB7/L36/L37) found in the 1987-1988 Chevrolet R10 Suburban. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

### **Pros of the Powerbond Dayco SX-1724 Harmonic Balancer**

1. **Improved Durability and Longevity** The Powerbond balancer is designed with a reinforced rubber compound and a stronger steel core, which is more resistant to cracking and wear compared to the stock unit. Many owners report significantly longer service life, often lasting the life of the engine if properly maintained.

2. **Reduced Vibration and Smooth Operation** The balancer is tuned to provide better vibration dampening, leading to a quieter and smoother engine operation. This is particularly noticeable in older engines where the stock balancer may have degraded over time.

3. **Better Fitment and Compatibility** The SX-1724 is specifically engineered to match the 5.7L V8 (LB7/L36/L37) applications, including the R10 Suburban. It includes the correct mounting hardware and is designed to align properly with the crankshaft and engine bay components.

4. **Cost-Effective Replacement** While not the cheapest option, it is more affordable than some high-end aftermarket or OEM replacements. It offers a good balance between performance and price, especially when compared to original equipment balancers.

5. **Easier Installation** The design is straightforward, and many mechanics report that it installs similarly to the stock unit, though some may require careful alignment to ensure proper function.

6. **Positive User Feedback** Many reviews from owners of similar applications (e.g., Chevy trucks, SUVs, and GMC models) highlight improved performance and reliability, reducing concerns about premature failure.

7. **Warranty Coverage** Powerbond and Dayco typically offer warranties on their balancers, providing some peace of mind against defects in materials or workmanship.

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### **Cons of the Powerbond Dayco SX-1724 Harmonic Balancer**

1. **Potential for Misalignment** If not installed correctly, the balancer can become misaligned with the crankshaft, leading to excessive vibration, noise, or even damage to the engine mounts or transmission. Proper torque specifications and alignment are critical.

2. **Rubber Degradation Over Time** While the rubber compound is improved, it is not immune to aging. In high-heat or high-stress environments (e.g., aggressive driving, towing, or extreme climates), the rubber may still degrade faster than expected, requiring eventual replacement.

3. **Limited Customization** Unlike some high-performance balancers, this unit is not designed for extreme tuning or high-RPM applications. It is a stock-replacement-grade part and may not offer the same performance benefits as a custom harmonic balancer for heavily modified engines.

4. **Installation Challenges for DIYers** While not overly complex, replacing a harmonic balancer requires removing the serpentine belt, tensioner, and possibly the alternator or power steering pump. DIYers without experience may find the process time-consuming or frustrating.

5. **Availability and Part Variability** While widely available, there have been occasional reports of counterfeit or low-quality units being sold under the Powerbond/Dayco brand. Purchasing from a reputable dealer or directly from the manufacturer can mitigate this risk.

6. **Noise or Whine in Some Cases** In rare instances, users report a slight whine or hum from the balancer, particularly at higher RPMs. This is usually due to misalignment or a less-than-perfect fit, but it is not a universal issue.

7. **Not a Permanent "Fix" for Engine Issues** If the engine has underlying problems (e.g., worn mounts, bent crankshaft, or excessive vibration from other sources), replacing the balancer alone may not resolve the issue. A full diagnostic is recommended before installation.

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### **Conclusion**

The Powerbond Dayco SX-1724 harmonic balancer is a solid aftermarket replacement for the 1987-1988 Chevrolet R10 Suburban s 5.7L V8. It offers noticeable improvements in durability, vibration reduction, and smoothness compared to the stock unit, making it a worthwhile upgrade for most owners. The part is well-suited for daily driving, towing, and moderate performance applications, provided it is installed correctly.

However, it is not a "set-and-forget" solution. Proper installation, periodic inspection, and attention to engine health are essential to maximize its lifespan. While rare, misalignment or poor-quality units can still cause issues, so sourcing from a trusted supplier is advisable.

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### **Recommendation**

**Yes, purchase and install the Powerbond Dayco SX-1724 harmonic balancer** if you are experiencing vibration, noise, or wear in your stock balancer. It is a cost-effective and reliable upgrade that will likely outlast the stock unit and improve your engine s operation.

**Key Steps to Ensure Success:**

1. **Verify Compatibility** Confirm that the SX-1724 is the correct part for your specific engine variant (LB7/L36/L37). Some early or late-model differences may require a different part number.

2. **Purchase from a Reputable Source** Buy directly from Powerbond, Dayco, or a trusted automotive parts retailer to avoid counterfeit or low-quality units.

3. **Follow Installation Instructions Carefully** Pay close attention to torque specifications and ensure the balancer is properly aligned with the crankshaft. Consider consulting a mechanic if you are unsure.

4. **Monitor Performance After Installation** Listen for unusual noises or vibrations, and inspect the balancer periodically for cracks or wear.

5. **Combine with Other Maintenance** If you are replacing the balancer, consider upgrading related components (e.g., engine mounts, serpentine belt, or tensioner) to further improve reliability.

For most owners, the Powerbond Dayco SX-1724 will be a positive and worthwhile upgrade, providing years of trouble-free service. However, if you are pushing the engine to extreme limits (e.g., high-performance tuning, heavy towing, or aggressive driving), you may want to explore higher-end harmonic balancers or consult a performance specialist.

Details:

Dayco Engine Harmonic Balancer for 1987 - 1988 Chevrolet R10 Suburban 5.7L V8 av: Status: In Stock.

specifications cranshafengin:

  • for models: R10, Suburban
  • for makes: Chevrolet
  • for years: 1987-1988
  • brand: Powerbond By Dayco
  • mpn: Sx-1724
  • item weight: 11.6700
  • ipn: C745 16-39
  • placement on vehicle: Engine Cylinder Block
  • compatible model: R10 Suburban
  • compatible year: 1988 1987
  • 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: 2.347 In / 59.60 Mm
  • hardware included: No
  • ring width: 1.523 In / 38.68 Mm
  • counterweight balance: Neutral, No Counterweight
  • outer ring material: Steel
  • overall outside diameter: 7.953 In / 202.00 Mm
  • nose outside diameter: 1.762 In / 44.75 Mm
  • crank bore: 1.245 In / 31.60 Mm

payments cranshafengin:

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  • transit: 3-6 Days
  • type: Fixed
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  • class: Standard, Expedited
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offer cranshafengin:

  • quantity: 2
  • options: Ship-to-home
  • started: March 28, 2026
  • sold: 0
  • availability: In Stock

general cranshafengin:

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

seller cranshafengin:

  • city: Indianapolis, Indiana
  • rating: 99.6%
  • # reviews: 638548

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for models: r10, suburban, for makes: chevrolet, for years: 1987-1988, item weight: 11.6700, placement on vehicle: engine cylinder block, compatible model: r10 suburban, compatible year: 1988 1987, 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: 2.347 in / 59.60 mm, hardware included: no, ring width: 1.523 in / 38.68 mm, counterweight balance: neutral, no counterweight, outer ring material: steel, overall outside diameter: 7.953 in / 202.00 mm, nose outside diameter: 1.762 in / 44.75 mm, crank bore: 1.245 in / 31.60 mm,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19549033883777721,
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