1. Engine Crankshafts Products
  2. sku: 19210202279708603
  3. POWERBOND DAYCO SX-5540

POWERBOND BY DAYCO SX-5540 Engine Harmonic Balancer Wo 5.9L V8

fits model: Fury. make: Plymouth. year: 1971–1974.

Sx-5540 Powerbond By Dayco Engine Harmonic Balancer For 1971-1974 Plymouth Fury Iii 5.9l V8 Wo

( Brand: Powerbond By Dayco ), ( Manufacturer Part Number: SX-5540 ), ( Item Weight: 8.3800 ), ( Ipn: C183 18-14 ), ( Placement On Vehicle: Engine Cylinder Block ), ( Compatible Model: Fury Iii ), ( Compatible Year: 1974 1973 1972 1971 ), ( 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 Plymouth 5.9l V8 Wo fits FURY 1971–1974

The **Powerbond Dayco SX-5540 Engine Harmonic Balancer** is a high-performance, precision-engineered replacement part designed specifically for the iconic 1971 through 1974 Plymouth Fury equipped with the legendary **5.9L (350 cubic inch) V8 engine**, particularly those built for serious driving, towing, or high-performance applications. This harmonic balancer is a direct replacement for the stock unit, ensuring seamless integration with the engine s crankshaft and vibration-dampening system while delivering superior durability and reliability. Crafted from high-quality, heat-treated steel, the SX-5540 features a robust rubber insert that is engineered to withstand the extreme forces generated by the powerful 350 V8, reducing harmful vibrations and preventing premature wear on the engine s drivetrain components. Unlike generic aftermarket alternatives, this balancer is built to exact specifications, including the correct mounting dimensions and rubber hardness, ensuring optimal performance and longevity even under heavy loads or aggressive driving conditions. Whether you're restoring a classic Fury for weekend cruising, preparing it for a drag strip, or simply upgrading for enhanced smoothness and engine protection, the Powerbond Dayco SX-5540 is the ideal choice for maintaining the integrity of your engine s critical rotating assembly. Its robust construction and proven reliability make it a trusted upgrade for enthusiasts who demand nothing less than the best for their high-performance or high-mileage vehicles.

### Pros and Cons of Buying a Powerbond Dayco SX-5540 Engine Harmonic Balancer for a 1971 1974 Plymouth Fury 5.9L V8 (Without a Water Pump)

#### **Pros:**

1. **Compatibility and Fitment** The Powerbond Dayco SX-5540 is specifically designed for the 5.9L V8 engines found in 1971 1974 Plymouth Fury (and Dodge Coronet/Charger) applications. It is engineered to match the crankshaft pulley bolt pattern and overall dimensions, ensuring a proper fit without modification.

2. **Durability and Performance** Powerbond and Dayco are well-regarded manufacturers of harmonic balancers, known for producing high-quality, durable components. The SX-5540 is made with reinforced rubber and steel construction, which helps dampen engine vibrations, reducing drivetrain wear and improving smoothness especially important for high-mileage or rough-running engines.

3. **Prevents Crankshaft Damage** A failing harmonic balancer can lead to excessive crankshaft vibration, which may cause damage to the crankshaft itself or connected components (such as the timing chain/gears or engine mounts). Replacing it proactively can extend the life of your engine.

4. **Easier Installation** Since it is a direct replacement, installation is straightforward for those with basic mechanical skills. No machining or customization is required, and it can be installed without removing the water pump (though if the water pump is worn, it may need replacement as well).

5. **Cost-Effective Solution** Compared to rebuilding or replacing a damaged crankshaft, a harmonic balancer is relatively inexpensive. It is a simple, cost-effective way to address vibration issues before they escalate.

6. **Improved Drivability** A worn harmonic balancer can cause noticeable vibration, especially at higher RPMs. Replacing it often results in a smoother, quieter ride, enhancing overall drivability.

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#### **Cons:**

1. **Potential for Early Failure** While high-quality, harmonic balancers can still fail prematurely if the engine has severe internal issues (e.g., excessive crankshaft runout, worn mounts, or a damaged flexplate). If the underlying problem isn t addressed, the new balancer may fail sooner than expected.

2. **Requires Removal of Accessories** Installing the balancer may require removing the serpentine belt, power steering pump, alternator, or other components for access. This can add time to the installation process, especially for those without the proper tools or experience.

3. **No Water Pump Included** The SX-5540 is a standalone harmonic balancer and does not include a water pump. If the water pump is failing or needs replacement, you ll need to source it separately, adding to the cost and labor.

4. **Limited Availability of Parts** While Powerbond and Dayco are reputable, finding a replacement balancer may be difficult depending on your location. Some specialty auto parts stores or online retailers may carry it, but it may require ordering.

5. **Skill Level Required** While the installation is not extremely difficult, it does require some mechanical aptitude. Misalignment or improper torque on the crankshaft pulley bolts can lead to vibration issues or damage. Those without experience may need to consult a professional.

6. **Potential for Counterfeit Products** As with many aftermarket parts, there is a risk of purchasing a counterfeit or low-quality replica. Always buy from a trusted dealer or directly from the manufacturer s authorized distributors to ensure authenticity.

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#### **Conclusion:**

The Powerbond Dayco SX-5540 harmonic balancer is a solid, direct replacement option for the 5.9L V8 in 1971 1974 Plymouth Fury applications. It offers improved vibration damping, durability, and compatibility, making it a worthwhile upgrade for engines experiencing excessive crankshaft vibration or wear. However, it is not a "fix-all" solution it works best when paired with a healthy engine and supporting components (such as mounts, flexplate, and timing chain).

If your engine has other known issues (e.g., worn mounts, a damaged flexplate, or a failing water pump), addressing those concurrently will maximize the lifespan of the new harmonic balancer. Additionally, ensuring proper installation and using genuine parts will help avoid premature failure.

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#### **Recommendation:**

- **Buy the Powerbond Dayco SX-5540** if you are experiencing noticeable crankshaft vibration, have a worn or damaged harmonic balancer, or are performing routine maintenance on your 5.9L V8. It is a reliable, high-quality replacement that will improve drivability and protect your engine.

- **Pair it with a water pump replacement** if yours is failing, as these components often wear together and should be addressed simultaneously.

- **Inspect other related components** (flexplate, mounts, timing chain/gears) during installation to ensure they are in good condition.

- **Purchase from a trusted source** to avoid counterfeit parts and ensure authenticity.

- **Consider professional installation** if you lack mechanical experience, as improper installation can lead to further issues.

For most owners, the SX-5540 is a practical and cost-effective choice that will extend the life of your engine and improve its operation.

Details:

Dayco Engine Harmonic Balancer for 1971-1974 Plymouth Fury III 5.9L V8 wo: Status: In Stock.

specifications cranshafengin:

  • for models: Fury
  • for makes: Plymouth
  • for years: 1971-1974
  • brand: Powerbond By Dayco
  • mpn: Sx-5540
  • item weight: 8.3800
  • ipn: C183 18-14
  • placement on vehicle: Engine Cylinder Block
  • compatible model: Fury Iii
  • compatible year: 1974 1973 1972 1971
  • 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

returns cranshafengin:

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

shipping cranshafengin:

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

offer cranshafengin:

  • sold: 0
  • availability: In Stock
  • quantity: 4
  • started: March 7, 2026
  • options: Ship-to-home

general cranshafengin:

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

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seller cranshafengin:

  • # reviews: 629854
  • rating: 99.5%
  • city: Indianapolis, Indiana
for models: fury, for makes: plymouth, for years: 1971-1974, item weight: 8.3800, placement on vehicle: engine cylinder block, compatible model: fury iii, compatible year: 1974 1973 1972 1971, 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: 19210202279708603,
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