SUBARU EC0055544 Crankshaft FB20

( Manufacturer Part Number: EC0055544 ), ( Part Type: Crankshaft ), ( Vintage Part: No )

Review SUBARU Crankshaft

The **Subaru EC0055544 Crankshaft (FB20 Engine)** is a precision-engineered component designed exclusively for Subaru s high-performance **FB20 2.0L Turbocharged Boxer-4 engine**, found in models such as the **WRX STI, WRX Type RA, and Legacy 2.0T**. Crafted from **high-grade forged steel**, this crankshaft is built to withstand the extreme stresses of forced induction, delivering exceptional durability and reliability under heavy loads. The **five-main-bearing design** ensures smooth operation and minimizes vibration, while the **optimized counterweight configuration** enhances rotational balance, reducing wear on the engine s supporting components. Engineered with **precision machining**, the crankshaft features **honed journals** and **laser-checked dimensions** to maintain tight tolerances, critical for maintaining optimal performance in high-revving applications. Whether used in stock or heavily modified setups, this crankshaft is a critical upgrade for enthusiasts seeking to maximize power output while preserving long-term engine integrity. Its compatibility with aftermarket turbochargers, upgraded pistons, and high-flow internals makes it an ideal choice for those pushing the limits of their FB20 engine. Built to meet or exceed OEM specifications, this crankshaft is a testament to Subaru s engineering legacy, ensuring dependable performance in both daily driving and track-focused applications.

### **Pros and Cons of Buying a Subaru EC0055544 (Crankshaft FB20 Engine)**

1. **Reliability of the FB20 Engine** The FB20 is a well-regarded Subaru engine known for its durability, especially in the 2.5L form. It is a horizontally opposed (flat-four) design, which provides a smooth ride and is less prone to vibration compared to inline engines. Many examples with proper maintenance last well beyond 200,000 miles.

2. **Boxer Engine Advantages** The flat-four layout offers better weight distribution, lower center of gravity, and a naturally balanced operation, contributing to better handling and comfort.

3. **Subaru s AWD System** The vehicle likely comes with Subaru s Symmetrical All-Wheel Drive (AWD), which is highly capable in snow, rain, and off-road conditions. This is a significant advantage in regions with harsh winter weather.

4. **Moderate Fuel Economy** For its size and power, the FB20 offers decent fuel efficiency, typically around 20-25 MPG in a sedan or wagon, depending on the model.

5. **Aftermarket Support** The FB20 is a popular engine among tuners, with a strong aftermarket presence for parts, upgrades, and performance modifications (e.g., turbocharging, intake/exhaust upgrades).

6. **Resale Value** Subarus, especially AWD models, tend to hold their value reasonably well, particularly in markets where all-wheel drive is desirable.

7. **Low-Cost Maintenance (Compared to Some Alternatives)** Basic maintenance like oil changes and spark plugs is relatively affordable. The engine s simplicity also means fewer complex components to fail.

8. **Safety Features** Many Subarus from this era (late 2000s to early 2010s) come equipped with standard safety features like stability control, anti-lock brakes, and side airbags, which are still valuable today.

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1. **Crankshaft Issue (EC0055544 Code)** The most critical concern is the **crankshaft position sensor (CKP) or related wiring failure**, which can cause misfires, rough idling, or even stalling. This issue is common in older Subarus and often requires replacing the sensor or wiring harness. While not always catastrophic, it can be a recurring problem if not addressed properly.

2. **Timing Chain Wear** The FB20 uses a timing chain rather than a belt, which is more durable but can still stretch or wear over time. If neglected, this can lead to timing issues, which may require a costly chain replacement (typically around $1,000 $1,500).

3. **Head Gasket Failures** Some FB20 engines, especially those with high mileage or poor maintenance, are prone to **head gasket leaks**, causing coolant loss, overheating, or white smoke from the exhaust. This is a serious issue that can require a major overhaul.

4. **Oil Consumption** Some FB20 engines, particularly those with higher mileage, may burn oil excessively. This can lead to frequent oil top-ups or, in severe cases, a need for valve seal replacement or cylinder head work.

5. **Transmission Issues (If Automatic)** If the vehicle has an automatic transmission (e.g., in a Legacy or Outback), older models may suffer from **rough shifting, delayed engagement, or solenoid failures**. A manual transmission would avoid these issues.

6. **Rust Susceptibility** Subarus are notorious for rust, especially in snowy or salted regions. Inspect the undercarriage, wheel wells, and frame rails for rust before purchasing. Rust can weaken structural integrity and lead to costly repairs.

7. **Electrical Gremlins** Older Subarus are known for **electrical issues**, such as faulty sensors, wiring problems, or failing fusible links. These can be frustrating to diagnose and repair.

8. **Depreciation** While Subarus hold value better than some competitors, they still depreciate faster than luxury or high-reliability brands. If you plan to keep the car long-term, this may not be a major issue, but it s worth considering if you re looking for a short-term purchase.

9. **Limited Modern Tech** Depending on the model year, the vehicle may lack modern safety features like blind-spot monitoring, lane-keeping assist, or advanced driver aids, which are now standard on newer cars.

10. **Parts Availability** While still available, some original equipment manufacturer (OEM) parts may become harder to find over time, increasing reliance on aftermarket alternatives.

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- The issue has been **properly diagnosed and fixed** (or you re prepared to address it immediately).

- The **timing chain, head gaskets, and oil consumption** have been checked and are in good condition.

- The **transmission (if automatic) is smooth and free of major issues**.

- The **rust inspection** shows no severe structural damage.

- You **plan to maintain the vehicle well** and are comfortable with potential minor electrical or sensor issues.

However, if the **crankshaft sensor issue is unresolved, the engine has high mileage with no service history, or there are signs of major wear (e.g., oil leaks, overheating, or rough running)**, the risks may outweigh the benefits.

---

1. **Get a Pre-Purchase Inspection (PPI)** Have a **trusted mechanic** thoroughly inspect the engine, transmission, electrical system, and undercarriage. Focus on:

- **Crankshaft position sensor and wiring** (confirm the EC0055544 code is resolved).

- **Timing chain condition** (listen for rattling at startup).

- **Head gasket integrity** (check for coolant in oil or oil in coolant).

- **Oil consumption** (test for excessive burning).

- **Transmission performance** (if automatic, ensure smooth shifts).

- **Rust and structural integrity**.

2. **Verify Maintenance History** A well-documented service record (oil changes, belt/chain replacements, fluid flushes) is a **strong indicator of reliability**.

3. **Negotiate Based on Findings** If the PPI reveals issues, use them to **lower the price** or require the seller to fix them before purchase.

4. **Consider a Lower-Mileage Example** If possible, prioritize a **vehicle with under 150,000 miles** and a **clean title** to minimize risks.

5. **Budget for Potential Repairs** Even with a clean bill of health, set aside **$1,000 $2,000** for unexpected issues (e.g., sensor replacements, minor electrical fixes).

- The **crankshaft sensor issue is unresolved** and the seller refuses to address it.

- The **engine has excessive oil consumption or overheating problems**.

- The **transmission is sluggish or leaking**.

- The **rust is severe** (especially on the frame or subframe).

---

This Subaru **can be a solid purchase** if the **crankshaft sensor issue is fixed, the engine is in good health, and the vehicle has been well-maintained**. However, it requires **due diligence** a PPI is **non-negotiable**. If you re comfortable with **minor electrical quirks, potential timing chain wear, and the possibility of head gasket issues down the line**, it could be a **great value** for an AWD Subaru. If you re looking for a **plug-and-play, low-maintenance car**, consider a **newer model or a different brand** with fewer known issues.

Would you like guidance on specific model years (e.g., Legacy, Outback, Forester) or alternatives to consider?

Details:

Subaru fb crankshaft looks good no gouging.

part #: ec0055544 prices

• $100.00-$185.99

specifications cranshafengin:

• for makes: Subaru
• mpn: Ec0055544
• part type: Crankshaft
• vintage part: No

general cranshafengin:

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

payments cranshafengin:

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

shipping cranshafengin:

• cost: $31.63
• transit: 6-12 Days
• type: Calculated
• service: UPS Ground
• class: Standard
• carrier: UPS

offer cranshafengin:

• availability: In Stock
• sold: 0
• started: May 22, 2026
• quantity: 1
• best offers: True
• options: Ship-to-home

returns cranshafengin:

• policy: No Returns

seller cranshafengin:

• rating: 100.0%
• city: Flagstaff, Arizona
• # reviews: 737

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