1. Engine Crankshafts Products
  2. sku: 19017198927787603
  3. POWERBOND DAYCO SX-3111

POWERBOND BY DAYCO SX-3111 Engine Harmonic Balancer Iz 5.8L 6.6L V8

fits model: F-350. make: Ford. year: 1977–1982.

Sx-3111 Powerbond By Dayco Engine Harmonic Balancer For 1977-1982 Ford F-350 5.8l 6.6l V8 Iz

( Brand: Powerbond By Dayco ), ( Manufacturer Part Number: SX-3111 ), ( Item Weight: 9.8100 ), ( Ipn: C275 69-17 ), ( Placement On Vehicle: Engine Cylinder Block ), ( Compatible Year: 1982 1981 1980 1979 1978 1977 ), ( 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: 3.508 In / 89.10 Mm ), ( Hardware Included: No ), ( Ring Width: 1.260 In / 31.98 Mm ), ( Counterweight Balance: Hub Weighted ), ( Outer Ring Material: Grey Iron ), ( Overall Outside Diameter: 6.536 In / 166.00 Mm ), ( Nose Outside Diameter: 1.876 In / 47.65 Mm ), ( Crank Bore: 1.374 In / 34.89 Mm )

Review POWERBOND BY DAYCO Engine Harmonic Balancer Ford 5.8l 6.6l V8 Iz fits F-350 1977–1982

The **Powerbond Dayco SX-3111 Engine Harmonic Balancer** is a high-performance, precision-engineered replacement part designed specifically for the iconic **1977 1982 Ford F-350** with the legendary **5.8L (350ci) and 6.6L (400ci) V8 engines**, including the robust **E-series (IZ) powerplants** that powered these heavy-duty trucks. Crafted from **high-strength, heat-treated steel**, this harmonic balancer is built to withstand the relentless torque and vibration of these powerful, high-output V8s, ensuring smooth operation and longevity under demanding conditions. Unlike standard aftermarket alternatives, the SX-3111 features a **reinforced rubber insert** that is engineered to maintain optimal damping characteristics, reducing engine shake and minimizing stress on the crankshaft and drivetrain components. Its **precision-balanced design** eliminates harsh vibrations that can lead to premature wear on gaskets, mounts, and other critical engine parts, making it an essential upgrade for both stock and modified applications. Whether you're running a **high-performance camshaft, forced induction, or a heavy-duty towing setup**, this harmonic balancer delivers superior durability and reliability, helping to preserve the integrity of your engine s power delivery system. With its **direct-fit compatibility** and **OEM-level quality**, the Powerbond Dayco SX-3111 is the ideal choice for truck enthusiasts and professionals seeking a dependable solution to eliminate engine shake and enhance drivability.

### **Pros and Cons of Buying a Powerbond Dayco SX-3111 Engine Harmonic Balancer for a 1977 1982 Ford F-350 (5.8L/6.6L V8, "Izuzu" Engine)**

#### **Pros:**

1. **Compatibility and Fitment** The SX-3111 is specifically designed for the Ford 5.8L/6.6L V8 engines (including the "Izuzu" variant) from 1977 1982, ensuring a proper fit without modification. This reduces the risk of installation issues compared to aftermarket balancers that may not align perfectly.

2. **Durability and Quality Materials** Powerbond/Dayco harmonic balancers are known for using high-quality rubber compounds and steel construction, which can withstand the torsional stresses of a high-performance or heavily driven engine. The dual-mass design (if applicable) helps dampen vibration better than a single-mass balancer.

3. **Reduced Vibration and Smoothness** A worn or failing harmonic balancer can cause excessive vibration, which can lead to driveline damage, loose bolts, or even engine misalignment. Replacing it with a new SX-3111 can restore smooth operation, especially in high-RPM applications or towing scenarios.

4. **Prevents Further Damage** If the original balancer is cracked, worn, or leaking fluid, it can lead to catastrophic failure (e.g., the rubber core breaking and damaging the crankshaft or connecting rod). Replacing it proactively avoids costly repairs down the line.

5. **Warranty Coverage** Powerbond/Dayco balancers typically come with a warranty (often 12 24 months), providing peace of mind against premature failure.

6. **Easy Installation** The SX-3111 is a direct replacement, meaning it bolts on in place of the old balancer without requiring additional modifications. Most mechanics can install it in under an hour.

7. **Cost-Effective Solution** Compared to the potential cost of repairing damage caused by a failing balancer (e.g., bent connecting rods, damaged crankshaft seals, or driveline issues), replacing it is a relatively inexpensive preventive measure.

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#### **Cons:**

1. **Potential for Early Wear in Aggressive Applications** While the SX-3111 is durable, extreme high-performance use (e.g., heavy towing, high-RPM drag racing, or constant high-load operation) may still cause it to wear out faster than stock. Some owners report that aftermarket balancers may not last as long as OEM units in extreme conditions.

2. **Rubber Degradation Over Time** Like all rubber components, harmonic balancers degrade with age, heat, and exposure to oil. Even a high-quality balancer may eventually crack or lose elasticity, requiring replacement every 50,000 100,000 miles, depending on driving conditions.

3. **Cost Compared to OEM** While the SX-3111 is reasonably priced, it may still be more expensive than an OEM balancer (if available) or a used/refurbished one. However, OEM parts can sometimes be harder to source for older vehicles.

4. **Installation Requires Engine Disassembly** To replace the harmonic balancer, the engine must be partially disassembled (flywheel/transmission removed), which can be labor-intensive and time-consuming for DIYers. This may require professional installation, adding to the cost.

5. **Risk of Improper Installation** If not installed correctly (e.g., not aligning the balancer properly with the crankshaft keyway or tightening bolts to the correct torque), it can lead to premature failure or vibration issues. This is why professional installation is often recommended.

6. **Limited Longevity in Harsh Environments** In extreme heat, constant high loads, or off-road use, the rubber compound may degrade faster than expected. Some users report that aftermarket balancers fail sooner in these conditions compared to stock units.

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### **Conclusion:**

The **Powerbond Dayco SX-3111 harmonic balancer** is a **reliable, high-quality replacement** for the 1977 1982 Ford F-350 5.8L/6.6L V8 engine, offering significant benefits in terms of vibration reduction, durability, and compatibility. It is a **smart preventive maintenance choice** to avoid costly engine or driveline damage caused by a failing balancer.

However, it is not a **permanent solution** all harmonic balancers will eventually wear out, especially under extreme conditions. The SX-3111 is a **cost-effective upgrade** over OEM parts and a **better alternative to cheap aftermarket balancers** that may fail prematurely.

### **Recommendation:**

- **Buy the SX-3111** if you are experiencing vibration issues, suspect the balancer is worn, or want to proactively maintain your engine.

- **Install it professionally** to ensure proper alignment and torque specifications are met.

- **Monitor for signs of wear** (cracks, oil leaks, excessive vibration) and replace it again if necessary, typically every **50,000 100,000 miles**, depending on usage.

- **Consider a dual-mass balancer** if your vehicle sees heavy towing or high-performance use, as they offer superior vibration damping but may be more expensive.

- **Avoid cheap aftermarket balancers** that lack proper materials or warranties, as they can fail quickly and cause more damage.

**Final Verdict:** The **Powerbond Dayco SX-3111 is a strong, well-supported choice** for this application and is highly recommended for reliability and performance.

Details:

Dayco Engine Harmonic Balancer for 1977 1982 Ford F-350 5.8L 6.6L V8 iz: Status: In Stock.

part #: sx3111 prices

  • $242.79-$474.27

specifications cranshafengin:

  • for models: F-350
  • for makes: Ford
  • for years: 1977-1982
  • brand: Powerbond By Dayco
  • mpn: Sx-3111
  • item weight: 9.8100
  • ipn: C275 69-17
  • placement on vehicle: Engine Cylinder Block
  • compatible year: 1982 1981 1980 1979 1978 1977
  • 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: 3.508 In / 89.10 Mm
  • hardware included: No
  • ring width: 1.260 In / 31.98 Mm
  • counterweight balance: Hub Weighted
  • outer ring material: Grey Iron
  • overall outside diameter: 6.536 In / 166.00 Mm
  • nose outside diameter: 1.876 In / 47.65 Mm
  • crank bore: 1.374 In / 34.89 Mm

seller cranshafengin:

  • city: Indianapolis, Indiana
  • # reviews: 625222
  • rating: 99.5%

offer cranshafengin:

  • sold: 0
  • options: Ship-to-home
  • started: February 24, 2026
  • quantity: 2
  • availability: In Stock

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  • policy: Returns Accepted
  • time: 30 Days

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  • transit: 3-5 Days
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general cranshafengin:

  • condition: New
  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
for models: f-350, for makes: ford, for years: 1977-1982, item weight: 9.8100, placement on vehicle: engine cylinder block, compatible year: 1982 1981 1980 1979 1978 1977, 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: 3.508 in / 89.10 mm, hardware included: no, ring width: 1.260 in / 31.98 mm, counterweight balance: hub weighted, outer ring material: grey iron, overall outside diameter: 6.536 in / 166.00 mm, nose outside diameter: 1.876 in / 47.65 mm, crank bore: 1.374 in / 34.89 mm,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19017198927787603,
Powerbond By Dayco SX-3111 Is Similar To:
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5 offers $242.79–$474.27 USD
  • Brand New. Offer #1 priced at $366.50 + $Calculated shipping estimate = $366.50* total. +$Calculated shipping
  • Brand New. Offer #2 priced at $474.27 + $Calculated shipping estimate = $474.27* total. +$Calculated shipping
  • Brand New. Offer #3 priced at $242.79 + $197.99 shipping estimate = $440.78* total. +$197.99 shipping
  • Brand New. Offer #4 priced at $319.50 + $197.99 shipping estimate = $517.49* total. +$197.99 shipping
  • Brand New. Offer #5 priced at $285.04 + $Calculated shipping estimate = $285.04* total. +$Calculated shipping

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