1. Engine Crankshafts Products
  2. sku: 18636264162299792
  3. DORMAN OE SOLUTIONS SX-3995

DORMAN OE SOLUTIONS SX-3995 Engine Harmonic Balancer Yh 3.8L V6 Cylinder

fits model: C290, Lesabre. make: Buick. year: 1988–1990.

Sx-3995 Dorman - Oe Solutions Engine Harmonic Balancer For 1988-1990 Buick Lesabre 3.8l V6 Cylinder Yh

( Brand: Dorman Oe Solutions ), ( Manufacturer Part Number: SX-3995 ), ( Manufacturer Warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part ), ( Item Weight: 8.3600 ), ( Ipn: C290 52-18 ), ( Placement On Vehicle: Engine Cylinder Block ), ( Compatible Model: Lesabre ), ( Compatible Year: 1990 1989 1988 ), ( Core Charge: Free No Core Charge ), ( Type: Engine Harmonic Balancer ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Dorman Engine Harmonic Balancer )

Review DORMAN OE SOLUTIONS Engine Harmonic Balancer Buick 3.8l V6 Cylinder Yh fits LESABRE C290 1988–1990

The **Dorman SX-3995 Engine Harmonic Balancer** is a precision-engineered replacement part designed specifically for the **1988 1990 Buick LeSabre** equipped with the **3.8L V6 (YH) engine**, ensuring optimal performance, smooth operation, and long-lasting reliability. This high-quality harmonic balancer is meticulously crafted to match the exact specifications of the original equipment manufacturer (OEM), delivering seamless vibration dampening and preventing excessive torsional stress on the crankshaft. Engineered with a robust **steel core** and reinforced rubber insert, the Dorman SX-3995 is built to withstand the demanding conditions of high-performance driving while maintaining a tight, balanced fit on the crankshaft pulley. Its **precision-machined mounting surface** ensures a secure and accurate installation, minimizing the risk of wobble or misalignment that can lead to premature wear on belts, pulleys, and other drivetrain components. Whether you're restoring a classic LeSabre or addressing a worn-out harmonic balancer in an existing vehicle, this Dorman part provides the durability and performance consistency expected from a trusted aftermarket leader. With its **direct-fit design**, it eliminates the need for additional modifications, making it an ideal choice for mechanics and enthusiasts seeking a reliable, no-fuss solution. Trust the Dorman brand for superior craftsmanship and compatibility, ensuring your Buick s 3.8L V6 runs with the smoothness and efficiency it was engineered for.

**Pros and Cons of Buying a Dorman SX-3995 Engine Harmonic Balancer for a 1988-1990 Buick LeSabre 3.8L V6 (Cylinder YH)**

### **Pros**

1. **Direct Fitment and Compatibility** The Dorman SX-3995 is specifically designed for the 3.8L V6 engine found in the 1988-1990 Buick LeSabre (Cylinder YH). This ensures proper alignment with the crankshaft and flywheel, reducing the risk of installation errors.

2. **High-Quality Construction** Dorman is a well-regarded brand known for manufacturing durable, aftermarket automotive parts. The harmonic balancer is made from high-strength materials, including steel and rubber components, which are designed to withstand the stresses of engine operation.

3. **Reduces Vibration and Noise** A failing harmonic balancer can cause excessive vibration, rattling, and even a loud *clunking* noise, particularly at idle or during acceleration. Replacing it with a new Dorman unit helps smooth out engine operation, improving ride comfort and reducing annoying noise.

4. **Prevents Further Damage** If the harmonic balancer is cracked, worn, or separated from the crankshaft, it can lead to catastrophic engine damage, such as bent rods or a damaged crankshaft. Replacing it proactively avoids costly repairs.

5. **Easy Installation** The Dorman SX-3995 is designed for straightforward installation, requiring only basic tools. Most mechanics or even experienced DIYers can replace it without significant difficulty, though some may need to remove the timing belt or accessory belt system to access it.

6. **Cost-Effective Solution** Compared to the potential cost of repairing engine damage caused by a failing harmonic balancer, replacing it is a relatively inexpensive fix. The part itself is reasonably priced, and labor costs are moderate.

7. **Warranty Coverage** Dorman parts often come with a warranty (typically 12 months or more), providing peace of mind in case of premature failure due to defects.

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### **Cons**

1. **Potential for Counterfeit or Low-Quality Units** While Dorman is a reputable brand, there is a risk of purchasing a counterfeit or inferior knockoff, especially if buying from untrusted sellers (e.g., unverified online marketplaces). Always verify the seller s authenticity and check for proper packaging and labeling.

2. **Requires Disassembly for Installation** To replace the harmonic balancer, you ll need to remove the timing belt (or serpentine belt, depending on the engine configuration), the crankshaft pulley, and possibly the alternator or other accessories. This can be time-consuming, especially for those unfamiliar with engine work.

3. **Risk of Over-Tightening or Misalignment** If the harmonic balancer is not installed correctly such as overtightening the bolt or misaligning it with the crankshaft it can lead to premature failure or even damage to the crankshaft. Following the manufacturer s torque specifications is critical.

4. **Additional Wear on Related Components** If the harmonic balancer has been failing for some time, other parts of the engine (e.g., the crankshaft pulley, timing belt, or mounts) may also be worn. Replacing just the balancer might not fully resolve vibration issues if these components are compromised.

5. **Limited Lifespan Compared to the Engine** While a harmonic balancer is designed to last the life of the engine, it can wear out due to extreme conditions (e.g., aggressive driving, high RPMs, or poor maintenance). In some cases, it may need replacement sooner than expected.

6. **Potential for Vibration Transfer** If the engine mounts or subframe are worn, replacing just the harmonic balancer may not fully eliminate vibration. Addressing these issues concurrently could be necessary for optimal results.

---

### **Conclusion**

The Dorman SX-3995 harmonic balancer is a **reliable and cost-effective solution** for addressing vibration and noise issues in a 1988-1990 Buick LeSabre 3.8L V6. Its direct fitment, durability, and ease of installation make it a strong choice for both mechanics and DIYers. However, the installation process requires careful attention to detail, and purchasing from a trusted source is essential to avoid counterfeit parts.

If your engine is exhibiting symptoms of a failing harmonic balancer (e.g., excessive vibration, rattling, or a clunking noise), replacing it with the Dorman unit is a **practical and preventive measure** to avoid more severe engine damage. Pairing this replacement with a thorough inspection of related components (e.g., timing belt, mounts, and pulleys) will ensure the best long-term results.

### **Recommendation**

- **Proceed with the purchase** if you are confident in your ability to install it correctly or if you have a mechanic perform the work. Choose a reputable seller (e.g., RockAuto, Amazon, or a local auto parts store) to avoid counterfeit parts.

- **Inspect other components** during installation, such as the timing belt, crankshaft pulley, and engine mounts, to address any underlying issues contributing to vibration.

- **Follow torque specifications** strictly when installing the new balancer to prevent damage.

- **Consider professional installation** if you are unsure about the process, as improper handling could lead to further problems.

For most owners, the Dorman SX-3995 is a **sound investment** that restores smooth engine operation and prevents costly repairs down the line.

Details:

Dorman Engine Harmonic Balancer for 1988 - 1990 Buick LeSabre 3.8L V6 Cylinder yh: Status: In Stock.

part #: sx3995 prices

  • $70.74-$225.48

specifications cranshafengin:

  • for models: C290, Lesabre
  • for makes: Buick
  • for years: 1988-1990
  • brand: Dorman Oe Solutions
  • mpn: Sx-3995
  • manufacturer warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part
  • item weight: 8.3600
  • ipn: C290 52-18
  • placement on vehicle: Engine Cylinder Block
  • compatible model: Lesabre
  • compatible year: 1990 1989 1988
  • core charge: Free No Core Charge
  • type: Engine Harmonic Balancer
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Dorman Engine Harmonic Balancer

general cranshafengin:

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

shipping cranshafengin:

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

payments cranshafengin:

  • other
  • wallet: Paypal
  • credit card: Visa

offer cranshafengin:

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

returns cranshafengin:

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

seller cranshafengin:

  • city: Indianapolis, Indiana
  • rating: 99.4%
  • # reviews: 618638
for models: c290, lesabre, for makes: buick, for years: 1988-1990, manufacturer warranty: 1 year / 2 years / 3 years / 5 years depending on part, item weight: 8.3600, placement on vehicle: engine cylinder block, compatible model: lesabre, compatible year: 1990 1989 1988, core charge: free no core charge, type: engine harmonic balancer, fitment type: direct replacement, bundle description: 1 pc genuine dorman engine harmonic balancer,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 18636264162299792,
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