INFINITI 546.IN1M14 Gas Accelerator Pedal Q50 4442-9

( Part Type: Pedal ), ( Genuine Oem: Yes ), ( Ipn: 546.in1m14 )

Review INFINITI Q50 Gas Accelerator Pedal Oem fits 2014–2023

The **Infiniti 546.IN1M14 14-23 Q50 Gas Accelerator Pedal (Part Number: 4442-9)** is a precision-engineered component designed exclusively for the **Infiniti Q50 (JM1) model series**, specifically tailored for the **1.4L turbocharged inline-4 engine (IN1M14)** produced between the **2014 and 2023 model years**. This accelerator pedal is a critical element of the vehicle s drive-by-wire throttle system, ensuring seamless and responsive engine control while maintaining the Q50 s signature blend of sporty handling and refined performance. Crafted from high-grade materials, including durable **polypropylene and reinforced rubber compounds**, the pedal is engineered to withstand the demands of daily driving, aggressive acceleration, and prolonged use without warping, cracking, or losing sensitivity. Its **smooth, progressive action** delivers a precise and linear throttle response, allowing drivers to modulate engine power with confidence, whether cruising on the highway or navigating tight corners with precision. The pedal s **ergonomic design** integrates seamlessly with the Q50 s cabin, offering a natural grip and intuitive feel that enhances driver engagement. Additionally, this part is **direct-fit**, eliminating the need for modifications or adaptations, and is compatible with both **automatic and manual transmission variants** of the Q50. Built to meet **OEM specifications**, it ensures compatibility with the vehicle s **ECU (Engine Control Unit)** and throttle-by-wire system, guaranteeing accurate throttle position sensor (TPS) readings and optimal engine performance. Whether replacing a worn-out original component or upgrading for enhanced durability, this accelerator pedal is an essential aftermarket solution for maintaining the Q50 s dynamic driving experience while adhering to Infiniti s high standards of quality and reliability.

### **Pros and Cons of Buying a 2014 2023 Infiniti Q50 (INF546.IN1M14) with Gas Accelerator Pedal (Part #4442-9)**

#### **Overview**

The **Infiniti Q50 (INF546.IN1M14)** is a luxury sedan based on the Nissan GT-R platform, offering high performance, refined interiors, and strong resale value. The **gas accelerator pedal (part #4442-9)** is a common replacement part for this model, especially if the original pedal has worn out or failed. Below is a detailed breakdown of the pros and cons of purchasing this vehicle, along with a final recommendation.

---

### **Pros of Buying a 2014 2023 Infiniti Q50**

1. **Strong Performance & Handling**

- The Q50 is built on the **Nissan GT-R platform**, meaning it inherits the **V6 twin-turbo engine (3.7L or 3.0L in later models)**, delivering **333 400 horsepower** and **331 400 lb-ft of torque**.

- Sharp **RWD/AWD drivetrain**, precise steering, and **adaptive suspension** provide excellent road-hugging capability.

- **Quick acceleration (0-60 mph in 4.5 5.5 seconds)** and **high-speed stability**, making it a fun yet practical luxury car.

2. **Luxury & Comfort**

- **Premium interior materials** (leather, wood/aluminum trim, ambient lighting) with **high-quality sound system** (optional **Bose or Harman Kardon audio**).

- **Spacious cabin** (good for 4 5 passengers) with **comfortable seating** and **quiet cabin** (low wind/water noise).

- **Advanced tech features** (available **Infotainment Touch Screen, Apple CarPlay, Android Auto, blind-spot monitoring, lane-keep assist, adaptive cruise control**).

3. **Reliability & Durability**

- The **3.7L V6 twin-turbo engine** (pre-2018) is robust but requires **proper maintenance** (oil changes, cooling system checks).

- **Transmission (CVT or 7-speed automatic)** is generally reliable, though some owners report **CVT longevity concerns** (common in Nissan/Nissan-based Infiniti models).

- **Strong resale value** compared to many luxury sedans, especially the **Q50 over the Q60** (which is more expensive and less practical).

4. **Safety Ratings**

- **Top Safety Pick (IIHS)** in many model years.

- **Standard stability control, multiple airbags, and advanced driver aids** (available in higher trims).

5. **Brand Prestige & Dealer Support**

- Infiniti has improved its reputation in recent years, offering **better warranty coverage** than some competitors.

- **Nissan s global dealer network** ensures **parts availability and service support**.

6. **Fuel Efficiency (Compared to Supercars)**

- While not a hybrid, the **Q50 achieves 18 22 MPG city / 25 30 MPG highway**, which is decent for a high-performance luxury sedan.

7. **Aftermarket & Modding Potential**

- **Tuning community** exists for the Q50, allowing **performance upgrades** (exhaust, ECU tuning, suspension swaps).

- **Aesthetic modifications** (spoilers, alloy wheels, LED lighting) are popular.

---

### **Cons of Buying a 2014 2023 Infiniti Q50**

1. **CVT Transmission Concerns**

- The **continuous variable transmission (CVT)** in early models (2014 2017) has had **reliability issues**, including **premature wear, jerking, and failure**.

- **Later models (2018 )** introduced a **7-speed automatic**, which is more refined but still **not as smooth as a traditional torque converter transmission**.

- **Maintenance costs** can be higher if the CVT fails (replacement can cost **$3,000 $5,000**).

2. **Turbocharger & Engine Reliability**

- The **3.7L twin-turbo V6** is powerful but **prone to turbo lag** and **oil consumption issues** if not maintained properly.

- **Cooling system failures** (water pump, thermostat, radiator) are **common failure points** requires **regular fluid changes and inspections**.

- **Carbon buildup in intake valves** (common in turbocharged engines) may require **intake valve cleaning** ( $500 $1,000).

3. **Higher Maintenance Costs Than Mass-Market Luxury Cars**

- **Nissan/Infiniti parts and labor** are often **more expensive** than German or Japanese competitors (e.g., BMW, Lexus, Audi).

- **Specialized repairs** (turbocharger, CVT, hybrid components in later models) may require **Nissan dealerships**, increasing costs.

4. **Comfort & Ride Quality Trade-offs**

- While the Q50 is **sharp and sporty**, it is **not as plush as a Lexus LS or BMW 5 Series**.

- **Road noise** can be noticeable at high speeds compared to some competitors.

- **Rear seat comfort** is adequate but not as spacious as a **Q60 or Audi A6**.

5. **Resale Depreciation (Compared to Some Rivals)**

- While the Q50 holds value **better than many American luxury cars**, it **depreciates faster than German rivals** (BMW 5 Series, Mercedes E-Class).

- **Higher-end trims (Q50 Premium, Track Edition)** retain value better than base models.

6. **Infotainment System Limitations**

- The **Infotainment screen (pre-2018)** is **clunky and slow** compared to modern rivals.

- **Bluetooth connectivity and wireless charging** were **late adopters** in Infiniti s lineup.

- **Software updates** are **less frequent** than competitors like Tesla or newer BMWs.

7. **Fuel Economy Not Exceptional**

- The **turbocharged V6 drinks more fuel** than a **hybrid luxury sedan** (e.g., Lexus ES 350h).

- **Diesel option was discontinued**, leaving only **gasoline-powered models**.

8. **Potential for Infamous "Nissan Reliability" Issues**

- Some owners report **electrical gremlins, sensor failures, and minor infotainment glitches**.

- **Brake system wear** (especially in aggressive drivers) can be higher due to **performance-oriented nature**.

---

### **Key Considerations Before Buying**

1. **Check Maintenance History**

- **Oil changes every 5,000 7,500 miles** (critical for turbocharged engines).

- **Cooling system flush every 60,000 100,000 miles**.

- **CVT fluid replacement** (if applicable) is **non-negotiable** for longevity.

2. **Test the Accelerator Pedal (Part #4442-9)**

- A **worn or failing gas pedal** can cause **jerking, hesitation, or complete failure**.

- **Spongy or loose feel**

- **Unresponsive throttle**

- **Check Engine Light (P0120, P0121, P0122 codes)**

- **Replacement cost:** $200 $400 (parts labor).

- **Installation difficulty:** Moderate (may require **removing the center console**).

3. **Inspect Turbochargers & Intercoolers**

- **Oil leaks, unusual noises, or reduced power** may indicate **turbo failure**.

- **Carbon buildup** in intake valves can be **costly to fix** ( $500 $1,000).

4. **Transmission Health**

- **Listen for whining, jerking, or delayed shifting** (CVT issues).

- **Check for overheating** (CVTs are sensitive to heat).

5. **Suspension & Steering**

- **Worn bushings, struts, or control arms** can affect handling.

- **Power steering fluid leaks** may indicate **pump failure**.

6. **Electrical System**

- **Test all sensors (MAF, oxygen sensors, throttle position sensor)**.

- **Check for random warning lights** (common in older Infinitis).

---

### **Final Recommendation**

You **prioritize performance and driving dynamics** over pure luxury.

You **maintain the car properly** (oil changes, cooling system, CVT care).

You **find a well-documented example** (service records, no major mechanical issues).

You **plan to keep it for at least 5 7 years** (long-term ownership justifies the investment).

Details:

Part Number:N/A. MENU Store Support. Donor Vehicle: 2014 INFINITI Q50 SPORT 3.7L AT AWD. Part Being Sold:GAS ACCELERATOR PEDAL.

Item ID:4442.

part #: 546.in1m14 prices

• $30.00-$90.00

specifications pedalspadsaz:

• for makes: Infiniti
• for years: 2014-2023
• part type: Pedal
• genuine oem: Yes
• ipn: 546.in1m14

shipping pedalspadsaz:

• transit: 5-10 Days
• service: USPS Ground Advantage
• carrier: USPS
• class: Standard
• cost: $0.00
• type: Fixed

general pedalspadsaz:

• condition: Used
• Car Truck Parts Accessories > Interior Parts Accessories > Pedal Assemblies, Pads Parts

payments pedalspadsaz:

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

seller pedalspadsaz:

• # reviews: 25243
• rating: 99.6%
• city: Mamou, Louisiana

offer pedalspadsaz:

• options: Ship-to-home
• started: February 4, 2026
• quantity: 1
• sold: 0
• availability: In Stock

returns pedalspadsaz:

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

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