1. Engine Crankshafts Products
  2. sku: 20326182348185633
  3. BUICK CASCADA

BUICK 303.GM4N19 Cascada Crankshaft Cylinder 1.6L

fits make: Buick. year: 2019.

303.gm4n19 Buick 2019 Cascada Oem Crankshaft 1.6l 4 Cylinder

( Model: CASCADA ), ( Part Type: Crankshaft Cylinder ), ( Conditions Options: 1.6l 4 Cylinder ), ( Genuine Oem: Yes ), ( Ipn: 303.gm4n19 ), ( Descriptionpartcondition: 2019 Buick Cascada Oem Crankshaft 1.6l 4 Cylinder ), ( Manufacturer Warranty: 90 Day )

Review BUICK Cascada Oem Crankshaft 1.6l Cylinder fits 303 2019

The **2019 Buick Cascada 1.6L Engine Crankshaft (GM4N19, Part # 303.GM4N19)** is a precision-engineered component designed to deliver optimal performance and reliability within General Motors turbocharged, direct-injection 1.6L EcoTec3 inline-four cylinder engine (designated the **Z18XEL**). This crankshaft is a critical part of the engine s drivetrain, responsible for converting linear piston motion into rotational force that drives the vehicle s transmission and wheels. Crafted from high-grade forged steel, the crankshaft features a **five-main-bearing journal design**, ensuring durability and smooth operation under the demanding conditions of turbocharged operation. The **counterweights** are meticulously balanced to minimize vibration, enhancing both drivability and longevity, while the **main and rod journals** are precision-machined to tight tolerances to maintain optimal lubrication and reduce wear. This crankshaft is compatible with the **1.6L turbocharged engine** found in the 2019 Buick Cascada, contributing to the vehicle s responsive acceleration and efficient power delivery, particularly in its hybrid-electric powertrain configuration. Whether for a replacement due to wear, damage, or routine maintenance, this crankshaft is engineered to meet GM s stringent quality standards, ensuring seamless integration with the engine s supporting components, including the connecting rods, bearings, and timing system. Its robust construction and precision engineering make it an essential upgrade or replacement part for maintaining the performance and reliability of the Cascada s turbocharged powertrain.

Buying a **2019 Buick Cascada with a 1.6L turbocharged engine (GM4N1 engine code)** specifically one with a known crankshaft issue requires careful consideration. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

---

### **Pros of Buying This Vehicle**

1. **Premium Brand and Build Quality**

Buick has historically offered a refined, upscale driving experience with solid build quality. The Cascada is a luxury crossover with a focus on comfort, quiet cabin, and premium materials, which can appeal to buyers seeking a more upscale alternative to mainstream brands.

2. **Turbocharged 1.6L Engine (GM4N)**

The 1.6L turbocharged engine (GM4N) is a relatively modern powertrain with decent performance for its class. It produces around **180 190 horsepower and 175 lb-ft of torque**, which is adequate for city driving and light highway use. The turbocharged setup improves fuel efficiency compared to naturally aspirated engines of similar size.

3. **Automatic Transmission (6-Speed or 8-Speed)**

The Cascada typically comes with a smooth-shifting automatic transmission (often a 6-speed or 8-speed), which provides a comfortable driving experience. The 8-speed option, in particular, offers better fuel economy and smoother gear shifts.

4. **All-Wheel Drive (AWD) Option**

If the vehicle comes with AWD, this can be beneficial for drivers in snowy or wet conditions, though it may slightly reduce fuel efficiency.

5. **Tech and Infotainment Features**

The Cascada includes modern infotainment systems (often with Apple CarPlay and Android Auto), wireless charging, and premium audio options. Some trims also feature advanced driver-assistance systems (ADAS) like adaptive cruise control and lane-keeping assist.

6. **Resale Value**

Buick vehicles, particularly luxury-oriented models like the Cascada, tend to hold their value reasonably well compared to some competitors, though not as strongly as brands like Lexus or Acura.

7. **Lower Purchase Price Compared to Competitors**

The Cascada is priced lower than direct competitors like the Acura RDX or Lexus RX, making it an attractive option for buyers who want a premium feel without the premium price tag.

---

### **Cons of Buying This Vehicle**

1. **Known Crankshaft Issue (GM4N Engine)**

The **2019 Buick Cascada with the 1.6L GM4N engine** has a **well-documented crankshaft issue**, where the crankshaft can develop a **roughness or knocking noise** due to a **misaligned or damaged crankshaft journal**. This issue is particularly problematic in vehicles with higher mileage (typically **60,000 miles**), though it can also appear earlier in some cases.

- **Symptoms:** Knocking or rattling noise from the engine, especially under acceleration or when cold. In severe cases, it can lead to **engine damage or failure**.

- **Repair Cost:** The fix involves **replacing the crankshaft or the crankshaft bearings**, which can cost **$2,500 $4,500 ** depending on labor and parts. Some owners report that GM has offered **extended warranties or recalls** for this issue, but coverage may be limited or nonexistent if the vehicle is no longer under warranty.

- **Reliability Concerns:** Even if the issue hasn t manifested yet, the risk of it developing later is a significant drawback. Some owners have reported that the problem worsens over time, leading to catastrophic engine failure.

2. **Turbocharger Reliability**

The 1.6L turbocharged engine is prone to **turbocharger failure**, particularly if the vehicle hasn t been well-maintained. Turbo failures can lead to **loss of power, excessive smoke, or complete engine shutdown**. Replacing a turbocharger can cost **$1,500 $3,000**.

3. **Transmission Issues**

Some owners report **rough shifting, delayed engagement, or transmission failures** in the 6-speed automatic transmission. The 8-speed transmission is generally more reliable but still not immune to problems. Transmission repairs can be **expensive (up to $3,000 )**.

4. **Electrical and Infotainment Glitches**

The Buick Cascada s infotainment system (often a **GM Uconnect platform**) has been criticized for **lag, freezing, or software bugs**. Some users report issues with **Bluetooth connectivity, touchscreen responsiveness, or navigation errors**. These problems can be frustrating and may require dealer visits for fixes.

5. **Interior Quality and Durability**

While the Cascada has a premium feel, some owners note that **plastic components feel cheap**, and **sealant issues** (e.g., windshield leaks, door seals) can lead to water intrusion and electrical problems. The **cabin air filter** may also need frequent replacement due to poor filtration.

6. **Rear Seat Comfort and Space**

The Cascada s rear seats are **narrow and less comfortable** than those in larger luxury crossovers. The cargo space is adequate but not generous, which may be a drawback for families or those needing to haul large items.

7. **Resale Depreciation**

While Buick vehicles hold value better than some competitors, the Cascada s resale depreciation is still significant over time. If you plan to sell it later, you may not recoup as much as you invested.

8. **Maintenance Costs**

Beyond the engine and transmission issues, the Cascada has **higher-than-average maintenance costs** compared to Japanese luxury brands. Parts and labor can be more expensive, and finding specialized mechanics may be difficult.

---

### **Conclusion**

Buying a **2019 Buick Cascada with a 1.6L GM4N engine especially one with known crankshaft issues is a high-risk purchase**. While the vehicle offers a **luxury feel, decent performance for its class, and modern features**, the **engine reliability concerns (crankshaft and turbocharger) and potential transmission issues** make it a **financially risky choice** unless you are prepared for **significant repair costs**.

If you are **willing to accept the risk and budget for potential repairs**, the Cascada could be a **good value for someone who prioritizes comfort and style over long-term reliability**. However, if **reliability and low maintenance costs** are top priorities, this vehicle may not be the best option.

---

### **Recommendation**

1. **If You Decide to Buy:** - **Get a Pre-Purchase Inspection (PPI) from a trusted mechanic** who specializes in GM engines. Focus on:

- **Crankshaft noise** (listen for knocking or roughness at idle and under acceleration).

- **Turbocharger health** (check for oil leaks, unusual noises, or performance issues).

- **Transmission fluid condition and shift smoothness**.

- **Electrical system** (test all infotainment and ADAS features).

- **Request maintenance records** to ensure the vehicle has been properly serviced (oil changes, timing belt, turbocharger checks).

- **Negotiate the price aggressively** account for the known crankshaft issue and any other repairs needed. Aim for **$5,000 $8,000 less than market value** if the vehicle has **50,000 miles**.

- **Consider an extended warranty** (if available) to cover the engine and transmission.

- **Budget for repairs** set aside **$3,000 $6,000** for potential engine or transmission work in the first few years.

2. **If You Are Unsure or Risk-Averse:**

- **Consider a different Buick model** with a **proven engine**, such as the **2019 Buick Envision (with the 2.0L turbo or 2.4L naturally aspirated engine)**, which has fewer known issues.

- **Look at competitors with better reliability ratings**, such as:

- **Acura RDX (V6 or hybrid)** More refined, better resale value.

- **Lexus RX (350 or hybrid)** Extremely reliable, though more expensive.

- **Volvo XC60 (T5 or T6)** Strong turbocharged engines with good reliability.

- **Wait for a used model with lower mileage** (under **50,000 miles**) and **full service history** to reduce risk.

3. **If You Find a Vehicle with the Crankshaft Issue Already Fixed:**

- This is the **safest option**, as the most critical failure mode would be resolved. However, **verify the repair was done by a GM dealer or a reputable shop** and that the warranty covers it.

---

### **Final Verdict**

The **2019 Buick Cascada with a 1.6L GM4N engine is a risky purchase due to the crankshaft and turbocharger issues**. It is **not recommended for buyers who prioritize long-term reliability** unless you are **prepared for significant repair costs**. If you still want the Cascada s luxury feel and are willing to **accept the risks**, **inspect the vehicle thoroughly, negotiate hard, and budget for repairs**. Otherwise, **consider a more reliable alternative** in the same price range.

Details:

Orders placed after 2:00 pm CST cannot be guaranteed shipping that day. 2019 Buick Cascada OEM Crankshaft 1.6L 4 Cylinder: Some vehicles have different specs that must be matched to ensure fit. Not just our Heritage, but Legacy 2019 Buick Cascada OEM Crankshaft 1.6L 4 Cylinder.

specifications cranshafengin:

  • for makes: Buick
  • model: Cascada
  • part type: Crankshaft Cylinder
  • conditions options: 1.6l 4 Cylinder
  • genuine oem: Yes
  • ipn: 303.gm4n19
  • descriptionpartcondition: 2019 Buick Cascada Oem Crankshaft 1.6l 4 Cylinder
  • manufacturer warranty: 90 Day

returns cranshafengin:

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

seller cranshafengin:

  • city: Mobile, Alabama
  • rating: 99.7%
  • # reviews: 63408

payments cranshafengin:

  • other
  • credit card: Discover
  • wallet: Google-pay

general cranshafengin:

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

shipping cranshafengin:

  • class: Standard
  • transit: 3-7 Days
  • cost: $45.00
  • service: Standard
  • type: Fixed

offer cranshafengin:

  • best offers: True
  • started: May 13, 2026
  • quantity: 1
  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
for makes: buick, part type: crankshaft cylinder, conditions options: 1.6l 4 cylinder, genuine oem: yes, descriptionpartcondition: 2019 buick cascada oem crankshaft 1.6l 4 cylinder, manufacturer warranty: 90 day,
manufacturer: buick, category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 20326182348185633,
Buick Is Similar To:
cranshafengin logo
1 offer $250.00 USD
  • Used. Offer #1 priced at $250.00 + $45.00 shipping estimate = $295.00* total. For full item description.+$45.00 shipping

Copyright © cranshafengin.com