1. Engine Crankshafts Products
  2. sku: 18854579616200723
  3. BUYAUTOPARTS 57-72940AN

BUYAUTOPARTS 57-72940AN Crankshaft Sensor Gap 193332473328 15772940-101

57-72940an Buyautoparts Crankshaft Sensor Gap

( Brand: Buyautoparts ), ( Manufacturer Part Number: 57-72940AN ), ( Part Type: Crankshaft Sensor ), ( Manufacturer Warranty: 1 Year ), ( Ipn: 15772940-101 ), ( California Prop 65 Warning: Prop65 Warning ), ( UPC: 193332473328 )

Review BUYAUTOPARTS Crankshaft Sensor Gap

The **BuyAutoParts 57-72940AN Crankshaft Position Sensor** is a precision-engineered automotive component designed to provide reliable and accurate feedback to your vehicle s engine control module (ECM) or powertrain control module (PCM). This sensor is a critical part of the ignition and fuel injection systems, ensuring optimal engine performance by monitoring the rotational speed and position of the crankshaft in real time. Crafted to meet or exceed OEM specifications, this sensor features a robust magnetic design with a high-sensitivity Hall-effect switch, which detects the movement of a reluctor ring (or timing wheel) mounted on the crankshaft. The reluctor s teeth create a varying magnetic field as the crankshaft rotates, allowing the sensor to generate precise digital pulses that the ECM interprets to calculate engine speed (RPM), cylinder timing, and overall engine synchronization. Ideal for a wide range of applications, including but not limited to Ford, Lincoln, and Mercury vehicles equipped with inline-4, inline-6, or V6 engines, this sensor is built to withstand the demands of high-performance driving, cold starts, and extended use without compromising accuracy. Its durable construction includes a corrosion-resistant housing and a sealed connector, ensuring longevity and resistance to environmental factors like moisture, dust, and temperature fluctuations. Whether you're restoring a classic vehicle, upgrading an older model, or replacing a faulty sensor in a modern engine, this part offers a direct fit and seamless integration with the engine bay s wiring and mounting points. By maintaining consistent sensor readings, it helps prevent misfires, rough idling, stalling, and check engine light (CEL) codes related to P0335 or P0336, ultimately contributing to smoother operation, improved fuel efficiency, and reduced emissions. For optimal performance, ensure proper installation by aligning the sensor with the reluctor ring and securing it tightly to avoid gaps or misalignment, which could lead to inaccurate readings or sensor failure over time.

Buying the **BuyAutoParts 57-72940AN Crankshaft Sensor** (or a similar generic replacement part) has its advantages and disadvantages depending on your needs, budget, and vehicle requirements. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying This Part**

1. **Cost-Effective Alternative**

The part is often priced significantly lower than an OEM (Original Equipment Manufacturer) or brand-name equivalent. This makes it a viable option for budget-conscious buyers, especially if the sensor is not critical to vehicle performance or safety.

2. **Wide Availability**

Generic or aftermarket parts like this one are widely stocked by online retailers (e.g., Amazon, eBay, BuyAutoParts), auto parts stores, and specialty suppliers. This means you can usually find it quickly without long wait times.

3. **Compatibility with Common Applications**

The part number (57-72940AN) is designed to fit a range of vehicles, particularly those manufactured by **Ford** (e.g., F-Series trucks, Explorer, Focus, etc.). If your vehicle s sensor is failing and this part matches your model s specifications, it can be a straightforward replacement.

4. **No Brand Loyalty Required**

Unlike OEM parts, which are often sold exclusively through dealerships at higher prices, generic parts allow you to shop around for the best deal without being tied to a specific brand.

5. **Decent Quality for Basic Use**

While not always as durable as OEM parts, many generic crankshaft sensors are manufactured to meet or exceed basic industry standards. For most drivers, this means reliable performance for the lifespan of the sensor (typically 80,000 150,000 miles).

6. **Easy Installation**

Crankshaft sensors are relatively simple to replace, especially if you have basic mechanical skills. The part usually requires minimal tools (e.g., socket set, torque wrench) and no specialized equipment.

7. **Warranty or Return Options**

Reputable sellers (e.g., BuyAutoParts, Amazon, RockAuto) often offer warranties (e.g., 6 12 months) or easy return policies if the part is defective or incompatible. This provides some protection against poor-quality items.

8. **Good for Non-Critical Applications**

If your vehicle s crankshaft sensor is not directly tied to safety (e.g., in a modern vehicle with advanced engine control systems), a generic part may suffice without compromising performance.

---

### **Cons of Buying This Part**

1. **Potential Quality Variability**

Generic parts are not always manufactured to the same exacting standards as OEM components. This can lead to:

- **Shorter lifespan** (e.g., failing sooner than expected).

- **Inconsistent signal output**, which may cause intermittent engine issues (e.g., rough idling, check engine lights, or poor acceleration).

- **Poor fitment** (e.g., loose connections, misalignment, or difficulty installing due to sizing differences).

2. **Lack of OEM Support**

If issues arise, OEM parts come with manufacturer-backed warranties and technical support. Generic parts may not have the same level of assistance, leaving you to troubleshoot problems yourself.

3. **Risk of Counterfeit or Low-Grade Parts**

Some sellers (especially on third-party platforms like eBay or Amazon) may offer counterfeit or substandard parts labeled as genuine. These can fail prematurely or even damage your vehicle s engine control system.

4. **No Long-Term Reliability Guarantee**

While some generic parts work fine for years, others may require replacement sooner than OEM parts. This can lead to repeated purchases and frustration, especially if the sensor is critical to your vehicle s operation.

5. **Potential for Voiding Warranty**

If your vehicle is still under manufacturer warranty, installing non-OEM parts may void coverage for related components (e.g., engine control modules). Always check your warranty terms before proceeding.

6. **Limited Customization or Upgrades**

Unlike OEM parts, generic sensors are rarely upgraded or enhanced. If you need a sensor with specific features (e.g., improved durability, better signal processing), you may need to pay a premium for a specialized part.

7. **Compatibility Issues**

While the part number suggests compatibility, slight variations in wiring, mounting, or signal protocols can cause problems. Always verify:

- **Exact model and year** of your vehicle.

- **Sensor type** (e.g., Hall-effect, magnetic, or inductive).

- **Connector type** (e.g., 2-pin, 3-pin, or specialized plug).

Misalignment here can lead to installation failures or electrical issues.

8. **No Brand Reputation**

OEM or reputable aftermarket brands (e.g., Bosch, Denso, ACDelco) have established track records for quality. Generic parts lack this reputation, making it harder to trust their long-term performance.

---

### **Conclusion**

Buying the **BuyAutoParts 57-72940AN Crankshaft Sensor** (or a similar generic part) is a practical choice for drivers who:

- Are on a tight budget and need a cost-effective replacement.

- Have confirmed the part s compatibility with their vehicle.

- Are comfortable troubleshooting potential issues if they arise.

- Do not require the absolute longest lifespan or highest reliability.

However, if you prioritize **long-term reliability, warranty coverage, or critical engine performance**, investing in an **OEM or high-quality aftermarket brand** (e.g., Denso, Bosch, or ACDelco) may be worth the extra cost. These parts often provide better signal accuracy, durability, and compatibility with modern engine management systems.

---

### **Recommendation**

1. **Verify Compatibility First**

Before purchasing, double-check that the **57-72940AN sensor matches your exact vehicle model, year, and engine type**. Use resources like:

- Your vehicle s repair manual.

- Online forums (e.g., Reddit s r/MechanicAdvice, forums like FixMyCarNow).

- The seller s product description or compatibility charts.

2. **Buy from a Reputable Seller**

Purchase from trusted retailers like:

- **RockAuto** (known for quality generic parts).

- **Amazon** (filter for "Best Seller" or highly rated sellers).

- **Local auto parts stores** (e.g., AutoZone, O Reilly, NAPA) for physical inspection.

Avoid unknown sellers with no reviews or poor return policies.

3. **Consider a Mid-Range Aftermarket Brand**

If budget allows, opt for a **well-known aftermarket brand** (e.g., **Denso, Bosch, or ACDelco**) instead of a generic part. These often cost slightly more but offer better reliability and compatibility.

4. **Inspect the Part Upon Arrival**

Check for:

- **Physical damage** (e.g., bent pins, cracked housing).

- **Correct wiring and connector type**.

- **Manufacturer markings** (e.g., "Denso" or "Bosch" labels indicate higher quality).

5. **Install with Care**

Follow these steps to ensure proper installation:

- Disconnect the battery before starting.

- Clean the sensor mounting area and wiring harness.

- Ensure the sensor is **tightened to the manufacturer s torque specification** (usually 8 12 Nm or 6 9 ft-lbs).

- Reconnect the wiring harness securely.

6. **Monitor Performance After Installation**

After replacing the sensor:

- Clear the **check engine light** using an OBD-II scanner.

- Test drive the vehicle and watch for:

- **Rough idling** (could indicate a weak signal).

- **Misfires or stalling** (may require further diagnosis).

- **Persistent check engine light** (could mean the new sensor is faulty or incompatible).

7. **Have a Backup Plan**

If the generic sensor fails quickly or causes issues, keep an **OEM or high-quality replacement** in reserve for a smoother replacement process.

---

### **Final Verdict**

The **BuyAutoParts 57-72940AN Crankshaft Sensor** is a **decent budget-friendly option** for non-critical applications where cost is a priority. However, if your vehicle is **high-mileage, performance-oriented, or requires precise sensor readings**, investing in a **brand-name sensor** is the safer choice. Always prioritize **compatibility, quality, and proper installation** to avoid long-term issues.

Details:

Brand:BuyAutoParts. Terminal Type - Blade; Connector Shape Rectangular; Quantity 2; Gender Female; Male. This Crankshaft Sensor is manufactured and tested to the strictest OE car truck standards for unparalleled performance. Tested and Approved: Each part is run through rigorous testing before it leaves the factory.

Condition: NEW. Built for trouble-free ownership and 100% visually inspected quality tested, this Crankshaft Sensor is backed by our satisfaction guarantee. Technical Specifications: Part Type:Crankshaft Sensor. Part Number:57-72940AN.

Premium Parts: All parts are premium ISO/TS 16949 quality.

part #: 5772940an price

  • $30.41

specifications cranshafengin:

  • brand: Buyautoparts
  • mpn: 57-72940an
  • part type: Crankshaft Sensor
  • manufacturer warranty: 1 Year
  • ipn: 15772940-101
  • california prop 65 warning: Prop65 Warning
  • upc: 193332473328

offer cranshafengin:

  • sold: 0
  • quantity: 8
  • started: February 15, 2026
  • options: Ship-to-home
  • availability: In Stock

general cranshafengin:

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

seller cranshafengin:

  • rating: 98.3%
  • city: Hebron, Kentucky
  • # reviews: 11898

returns cranshafengin:

  • paid by: Seller
  • time: 60 Days
  • policy: Returns Accepted

payments cranshafengin:

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

shipping cranshafengin:

  • service: Standard, Expedited, Overnight
  • transit: 4-8 Days
  • class: Standard, Expedited, One-day
  • cost: $10.70
  • type: Fixed
part type: crankshaft sensor, manufacturer warranty: 1 year, california prop 65 warning: prop65 warning,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 18854579616200723,
Buyautoparts 57-72940AN Is Similar To:
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  • New. Offer #1 priced at $30.41 + $10.70 shipping estimate = $41.11* total. +$10.70 shipping
  • New. Offer #2 priced at $30.41 + $10.70 shipping estimate = $41.11* total. +$10.70 shipping

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