FLUIDAMPR 651231 Harmonic Balancer Crankshaft Pulley 5.2L

( Brand: Fluidampr ), ( Manufacturer Part Number: 651231 ), ( Part Type: Balancer Crankshaft ), ( Manufacturer Warranty: 1 Month ), ( Country Of Origin: United States )

Review FLUIDAMPR Audi 5.2l Harmonic Balancer Crankshaft Pulley fits HURACAN R8 2017–2023

The **Fluidampr 651231 Harmonic Balancer and Crankshaft Pulley** is a precision-engineered, high-performance component meticulously designed to deliver unmatched reliability and smooth operation for the **Audi R8 V10 (939) and Lamborghini Hurac n (LP 660-2) with the 5.2L naturally aspirated V10 engine**. This critical drivetrain component serves as the interface between the crankshaft and the engine s accessory drive system, ensuring optimal power transfer while absorbing the inherent vibrations generated by the high-revving, high-performance V10 architecture. Crafted from **high-grade forged steel**, the pulley is dynamically balanced to eliminate harmful torsional vibrations that could compromise engine longevity or lead to premature wear in the timing belt, water pump, or alternator drive systems. Its **precision-machined surface** and **optimized weight distribution** enhance rotational smoothness, reducing parasitic drag on the crankshaft while maintaining structural integrity under extreme loads critical for the aggressive driving dynamics of these supercars.

The **Fluidampr 651231** incorporates a **high-performance rubber insert** within its internal design, engineered to dampen torsional oscillations with superior efficiency compared to standard pulleys. This advanced damping system mitigates the risk of resonance-induced stress on the crankshaft and connecting components, particularly under high-RPM conditions where the 5.2L V10 excels. The pulley s **interference-fit mounting** ensures a secure, vibration-free connection to the crankshaft flange, preventing slippage or misalignment that could lead to catastrophic failure. Additionally, its **robust design** accommodates the high torque outputs and aggressive power delivery of these engines, making it an ideal upgrade for both stock and modified applications seeking enhanced durability and performance.

Beyond its functional superiority, the **Fluidampr 651231** is built to meet or exceed OEM specifications, ensuring seamless compatibility with the **Audi R8 (939) and Lamborghini Hurac n (LP 660-2)** without the need for modifications to the engine bay or accessory drive system. Its **black anodized finish** not only enhances aesthetic appeal but also provides corrosion resistance, ensuring longevity even in demanding environments. Whether installed as part of a routine maintenance overhaul or as a proactive measure to prevent harmonic-related failures, this harmonic balancer and crankshaft pulley represents a **cost-effective, high-performance solution** for enthusiasts and professionals alike who demand the utmost in drivetrain reliability for their high-end V10-powered supercars.

### **Pros and Cons of buying a Fluidampr 651231 (17-23 Audi R8 / Lamborghini Hurac n 5.2L Harmonic Balancer & Crankshaft Pulley)**

1. **OEM Replacement Quality** Fluidampr products are designed to meet or exceed original equipment manufacturer (OEM) specifications, ensuring proper fitment, durability, and performance for your Audi R8 or Lamborghini Hurac n 5.2L engine.

2. **High-Strength Materials** The harmonic balancer and crankshaft pulley are constructed from premium materials, including reinforced rubber and high-grade steel, which enhances resistance to wear, vibration, and stress.

3. **Balanced Performance** A properly functioning harmonic balancer reduces engine vibration, improving drivability, smoothness, and longevity of related components like the timing belt, water pump, and alternator.

4. **Compatibility with Aftermarket Upgrades** Since the 5.2L V10 engine is commonly modified (e.g., forced induction, engine swaps), a high-quality harmonic balancer helps maintain reliability under increased stress.

5. **Warranty & Reliability** Fluidampr offers warranties on their products, providing peace of mind against premature failure. Their reputation in the performance aftermarket suggests a focus on durability.

6. **Easier Maintenance** The pulley and balancer are often part of a service interval (e.g., every 60,000 100,000 miles), and replacing them together simplifies maintenance and prevents unexpected failures.

7. **Cost-Effective Long-Term Solution** While the upfront cost may be higher than generic alternatives, a quality harmonic balancer reduces the risk of catastrophic engine damage (e.g., broken timing belt, bent rods) that could cost far more to repair.

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1. **Higher Upfront Cost** Compared to aftermarket or generic replacements, Fluidampr s OEM-quality parts are more expensive. This may be a barrier for budget-conscious buyers.

2. **Installation Complexity** Replacing the harmonic balancer and crankshaft pulley requires removing the timing belt cover, water pump, and alternator, which can be labor-intensive. DIYers may need specialized tools or experience.

3. **Limited Availability** While Fluidampr is a reputable brand, availability may vary depending on region or dealer networks. Some specialty shops may not stock it, requiring online purchases.

4. **Potential for Counterfeit Products** As with any high-demand part, there is a risk of purchasing counterfeit Fluidampr products. Buying from authorized dealers or verified sellers (e.g., RockAuto, Jegs, or the manufacturer s website) mitigates this risk.

5. **No Significant Performance Gain** Unlike performance parts (e.g., exhaust, intake), the harmonic balancer and pulley primarily serve a maintenance function. Expect no noticeable power or speed improvements just reliability.

6. **Wear Over Time** Even high-quality balancers degrade with age and mileage. They are not "lifetime" parts and will eventually need replacement, though Fluidampr s products are designed to last longer than generic alternatives.

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The **Fluidampr 651231 harmonic balancer and crankshaft pulley** is a **strong choice** for owners of the 2017 2023 Audi R8 or Lamborghini Hurac n 5.2L who prioritize **reliability, durability, and OEM-level quality**. The cons primarily the higher cost and installation complexity are outweighed by the benefits of preventing costly engine damage and ensuring smooth operation. For enthusiasts who modify their vehicles or drive aggressively, investing in a premium part like this is a **wise long-term decision**.

If budget is a concern, **generic or aftermarket alternatives** (e.g., from brands like Gates or Dayco) may suffice for basic maintenance, but they carry a higher risk of premature failure. For those who want **maximum confidence in their engine s longevity**, Fluidampr is the **recommended choice**.

- You want OEM-quality parts for your high-performance V10 engine.

- You plan to keep the vehicle long-term or modify it (e.g., forced induction).

- You re willing to invest in reliable components to avoid unexpected repairs.

- You re on a tight budget and prioritize basic functionality over longevity.

- You re comfortable with the higher risk of failure under heavy loads.

For most serious owners of these vehicles, **Fluidampr is the best option** it s an **essential part of proactive engine maintenance**.

Details:

Removed from a 2017 Audi R8 V10 Plus with ONLY 18,926 miles. Sometimes they are not close so please verify before purchasing. Do not remove any tamper evident labels or markings unless you are sure want to keep the item. Same year, same model vehicles often have different part types.

If you are unsure if a part will work for your vehicle, please either verify with us or local dealer/mechanic before purchasing. All parts are tested before removal to ensure they in good working condition. The best way to ensure a part will fit your vehicle is by matching numbers. 17-23 Audi R8 Huracan 5.2L Fluidampr Harmonic Balancer Crankshaft Pulley 651231.

part #: 651231 price

• $464.99

specifications cranshafengin:

• for models: R8, Huracan
• for makes: Audi
• for years: 2017-2023
• brand: Fluidampr
• mpn: 651231
• part type: Balancer Crankshaft
• manufacturer warranty: 1 Month
• country of origin: United States

seller cranshafengin:

• rating: 99.8%
• city: Rancho Cordova, California
• # reviews: 5779

returns cranshafengin:

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

payments cranshafengin:

• wallet: Apple-pay
• credit card: Mastercard
• other

general cranshafengin:

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

shipping cranshafengin:

• class: Standard
• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00
• carrier: FedEx
• transit: 4-7 Days
• type: Fixed

offer cranshafengin:

• started: April 9, 2026
• quantity: 1
• availability: In Stock
• best offers: True
• options: Ship-to-home
• sold: 0

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