CADILLAC 303.GM6N14 Xts Lfx Engine Motor Crank Crankshaft 300-10259 3.6L

( Part Type: Engine Motor Crank Crankshaft ), ( Conditions Options: 3.6l Lfx Crankshaft ), ( Genuine Oem: Yes ), ( Ipn: 303.gm6n14 300-10259 13 14 )

Review CADILLAC Xts 3.6l Lfx Engine Motor Crank Crankshaft fits 303 2013–2014

The **Cadillac 303.GM6N14 300-10259 3.6L LFX V6 Engine** (produced from model years **2013 2014**) is a high-performance, direct-injection powertrain designed for the **XT5** and select **CTS** models, delivering a seamless blend of luxury, efficiency, and spirited driving dynamics. Engineered by General Motors under the **LFX (Luxury Front-Wheel Drive)** platform, this **3.6-liter naturally aspirated V6** is a refined evolution of the proven **LS3-based architecture**, optimized for smooth operation, reduced emissions, and enhanced responsiveness. The **300-10259** designation refers to its specific engine family variant, featuring a **cast aluminum block and cylinder heads**, paired with a **forged crankshaft** (part number **303.GM6N14**) that ensures durability and precision under high-stress conditions. This crankshaft, machined with meticulous tolerances, supports the engine s **double overhead camshaft (DOHC)** design, which, in conjunction with **variable valve timing (VVT)** on both intake and exhaust sides, allows for optimized airflow and torque delivery across the RPM spectrum. The **3.6L displacement** strikes an ideal balance between power and efficiency, producing approximately **304 horsepower and 262 lb-ft of torque** (depending on calibration), making it well-suited for the XT5 s front-wheel-drive layout while maintaining a luxurious, quiet cabin environment. The engine s **direct fuel injection system** enhances throttle response and fuel economy, while its **tightly integrated oil and coolant passages** contribute to efficient heat management, reducing the risk of overheating in stop-and-go traffic or high-performance driving scenarios. Built to meet **Tier 2 Bin 5 emissions standards**, this engine incorporates **catalytic converters, an exhaust gas recirculation (EGR) system**, and **advanced ignition control** to minimize pollutants without sacrificing performance. The **303.GM6N14** is also equipped with **GM s EcoBoost-like efficiency features**, such as **start-stop functionality** (when paired with the appropriate transmission), further solidifying its reputation as a modern, driver-focused powerplant. Whether used in the **XT5 s sport-tuned suspension setup** or the **CTS s refined ride quality**, this engine delivers a **smooth, linear powerband** with minimal vibration, embodying Cadillac s commitment to blending American muscle heritage with contemporary engineering sophistication. For enthusiasts and restorers, this **2013 2014 LFX V6** remains a sought-after component for its **reliability, adaptability, and the signature Cadillac driving experience** it provides.

### **Pros and Cons of Buying a Cadillac 303.GM6N14 (3.6L LFX V6 Engine, 2013-2014 XTS)**

#### **Overview**

The **Cadillac XTS (2013-2014)** with the **3.6L LFX V6 engine (GM6N14)** is a mid-size luxury sedan known for its refined ride, comfortable interior, and decent performance. However, like any vehicle, it has strengths and weaknesses that potential buyers should consider before purchasing.

---

### **Pros**

1. **Comfortable and Spacious Interior**

- The XTS offers a **roomy cabin** with high-quality materials, especially in higher trims (e.g., XTS Premium or XTS Platinum).

- **Good legroom** for front and rear passengers, making it suitable for long trips.

- **Quiet cabin** due to excellent sound insulation, contributing to a premium driving experience.

2. **Smooth and Refined Ride**

- The **LFX V6 (3.6L)** is a **naturally aspirated engine** that provides **adequate power (275 hp, 262 lb-ft torque)** without excessive vibration or noise.

- The **adaptive suspension** (on higher trims) improves comfort over rough roads.

- **Low noise levels** at highway speeds, typical of Cadillac s luxury positioning.

3. **Decent Performance for a V6**

- The **3.6L LFX** is a **reliable engine** (shared with other GM vehicles like the Chevrolet Impala and Buick LaCrosse) and delivers **smooth acceleration** for daily driving.

- **6-speed automatic transmission** (6T40/6T45) is **responsive and durable** if well-maintained.

- **All-wheel drive (AWD) option** (on XTS AWD models) improves traction in snow and wet conditions.

4. **Luxury Features (Depending on Trim)**

- **Premium audio systems** (Bose or Harman Kardon on higher trims).

- **Leather seats** (available in multiple colors and materials).

- **Heated/ventilated seats** (on premium trims).

- **Adaptive cruise control, lane-keep assist, and blind-spot monitoring** (on later 2014 models).

- **Available navigation system** (on higher trims).

5. **Good Resale Value for a Luxury Sedan**

- Cadillac XTS holds its value **better than some competitors** (e.g., older Lexus ES or Acura TL).

- **Lower depreciation** compared to some luxury brands, making it a **smart long-term investment**.

6. **Reliability (Compared to Other Luxury Brands)**

- The **3.6L LFX V6 is a proven engine** with **few major issues** if maintained properly.

- **Transmission issues are rare** if the vehicle has been serviced regularly.

- **Electrical gremlins** (common in older Cadillacs) are **less severe** than in some European luxury cars.

7. **Affordable Luxury Option**

- **Lower starting price** than German luxury sedans (e.g., BMW 5 Series, Mercedes E-Class).

- **More affordable maintenance** compared to high-end European brands.

---

### **Cons**

1. **Engine and Transmission Limitations**

- The **3.6L LFX V6 is not a high-performance engine** it lacks the **torque and power** of a turbocharged or larger V8.

- **Acceleration feels sluggish** compared to modern turbocharged V6s or V8s.

- **Transmission can be sluggish** in stop-and-go traffic (common in GM s 6-speed automatics).

2. **Rust Issues (Especially in Snowy Regions)**

- **Cadillacs from this era are prone to rust**, particularly in **wheel wells, rocker panels, and undercarriage**.

- **Check for rust** before purchasing **preventative rust treatment is essential** in snowy climates.

- **Body panels may need replacement** if rust is already present.

3. **Interior Quality Variability**

- **Lower trims (Base, Luxury) have cheaper plastics and less premium feel**.

- **Plastic components can feel cheap** compared to German luxury brands.

- **Cabin noise can be noticeable** at high speeds (though better than some competitors).

4. **Infotainment System Limitations**

- **Old-school navigation system** (if equipped) can be **slow and outdated**.

- **USB and Bluetooth connectivity** may require **aftermarket upgrades** for modern devices.

- **No Apple CarPlay or Android Auto** (unlike newer Cadillacs).

5. **Resale Depreciation (Compared to Japanese Luxury)**

- While better than some brands, the **XTS still depreciates faster** than a **Lexus ES or Acura TL** of similar age.

- **Not as desirable in the used market** as Japanese luxury sedans.

6. **Maintenance Costs Can Add Up**

- **Oil changes, transmission fluid, and cooling system flushes** are **more frequent** than in some Japanese luxury cars.

- **Brake pads and rotors** wear out faster than in some competitors.

- **Electrical issues** (e.g., window regulators, door locks) can be **costly to repair**.

7. **Fuel Economy is Average**

- **Combined MPG is around 18-22 MPG** (city/highway), which is **worse than Japanese luxury competitors**.

- **No hybrid or turbo option**, meaning **higher fuel costs** over time.

8. **Build Quality and Fitment Issues**

- **Panel gaps can be uneven** in some models.

- **Door seals may not be airtight**, leading to **wind noise**.

- **Some models have plastic interior components** that feel less premium.

9. **Limited Aftermarket Support**

- **Fewer performance upgrades** available compared to German or Japanese luxury cars.

- **Tuning options are limited** due to the engine s naturally aspirated nature.

10. **Potential Electrical Problems**

- **Faulty sensors** (e.g., mass airflow sensor, oxygen sensors).

- **Intermittent issues with windows, locks, or infotainment**.

- **Check for past electrical repairs** before buying.

---

### **Common Issues to Watch For (Pre-Purchase Inspection Checklist)**

**Rust** (especially in wheel wells, rocker panels, and undercarriage).

**Transmission fluid condition** (should be **red and clean**, not burnt or dark).

**Coolant leaks** (common near the **water pump and thermostat housing**).

**Oil leaks** (check for **oil spots under the engine**).

**Suspension wear** (uneven ride height, clunking noises over bumps).

**Electrical issues** (test all windows, locks, infotainment, and sensors).

**Service records** (proper maintenance history is **critical** for this engine).

**Check for past accidents** (rust lines, misaligned panels, or uneven gaps).

---

### **Final Recommendation**

You **prioritize comfort and space** over raw performance.

You **want a reliable, well-built luxury sedan** at a **lower price** than German brands.

You **live in a mild climate** (or are willing to **prevent rust treatment**).

You **find a well-maintained example** with **full service records**.

You **don t need cutting-edge tech** (no CarPlay/Android Auto).

You **plan to keep it for 5-7 years** (resale value is decent).

You **need high performance** (turbocharged or V8 power).

You **live in a snowy/salty region** (rust will be a **major concern**).

You **want a car with modern infotainment** (Apple CarPlay/Android Auto).

You **can t afford potential maintenance costs** (transmission, electrical, suspension).

You **prefer Japanese luxury reliability** (Lexus, Acura, Toyota).

The **vehicle lacks service history** (critical for this engine).

- **Family luxury sedan** (comfortable, spacious, reliable).

- **Long-distance commuter car** (smooth ride, quiet cabin).

- **Budget-friendly alternative to German luxury** (if you find a **well-maintained example**).

- If you **want better fuel economy**, consider a **Lexus ES 350 or Acura TLX**.

- If you

Details:

No expedited shipping options are available at this time. 210269111 3.6L LFX Crankshaft. Provides unrestricted 53 ft truck access no residential streets, gates, or limited entry areas.

specifications cranshafengin:

• for makes: Cadillac
• for years: 2013-2014
• part type: Engine Motor Crank Crankshaft
• conditions options: 3.6l Lfx Crankshaft
• genuine oem: Yes
• ipn: 303.gm6n14 300-10259 13 14

returns cranshafengin:

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

shipping cranshafengin:

• type: Fixed
• transit: 4-7 Days
• cost: $0.00
• class: Economy, Standard
• service: Economy, Standard

general cranshafengin:

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

payments cranshafengin:

• other
• wallet: Google-pay
• cash
• credit card: Mastercard

offer cranshafengin:

• availability: In Stock
• started: March 12, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home
• best offers: True

seller cranshafengin:

• city: North Brunswick, New Jersey
• rating: 99.9%
• # reviews: 29930

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