1. Engine Crankshafts Products
  2. sku: 19584163687081731
  3. AUTOPART PREMIUM 85CMHJ

AUTOPART PREMIUM 85CMHJ Crank Position Sensor Base 3.2L

fits make: Bmw. year: 2001–2006.

85cmhj Autopart Premium Crank Position Sensor Fits Bmw M3 2001-2006 3.2l 6 Cyl Base

( Brand: Autopart Premium ), ( Manufacturer Part Number: 85CMHJ ), ( Part Type: Crank Sensor ), ( Engine: 3.2l 6 Cyl ), ( Trim: Base ), ( Compatible Make/model: Bmw M3 ), ( Compatible Years: 2001 2002 2003 2004 2005 2006 01 02 03 04 05 06 ), ( Fitment Info: Crank Position Sensor ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review AUTOPART PREMIUM Crank Position Sensor Bmw 3.2l Cyl Base fits M3 2001–2006

The **OEM-Quality Autopart 85CMHJ Crank Position Sensor** is a precision-engineered component designed exclusively for BMW s high-performance **E46 M3 (2001 2006)** models equipped with the **3.2L S54 inline-six engine**, serving as the backbone of your vehicle s ignition and engine control system. This sensor plays a critical role in monitoring the crankshaft s rotational position and speed, providing real-time data to the engine control unit (ECU) to ensure optimal fuel injection timing, ignition spark delivery, and overall engine performance. Crafted to exacting specifications, this sensor features a robust **Hall-effect-based design**, delivering accurate and reliable signals even under the demanding conditions of high-performance driving, ensuring seamless synchronization between the engine s mechanical motion and electronic management systems.

Built to match the original equipment manufacturer (OEM) standards, the **85CMHJ Crank Position Sensor** incorporates a **high-precision magnetic pickup** and a **durable, corrosion-resistant housing**, designed to withstand the harsh environments of the engine bay, including exposure to heat, vibration, and moisture. The sensor s **sealed construction** prevents contaminants from infiltrating the internal components, while its **precision-machined mounting flange** ensures a secure and accurate fit to the engine block, minimizing signal interference and maximizing performance consistency. Whether you re restoring a classic M3 to its factory glory or upgrading an existing vehicle for enhanced reliability, this sensor guarantees a direct replacement that performs identically to the factory unit, eliminating common issues like misfires, rough idling, or check engine lights triggered by faulty crank position signals.

Ideal for both professional mechanics and DIY enthusiasts, the **85CMHJ Crank Position Sensor** is a straightforward, plug-and-play solution that requires no additional modifications or adjustments beyond proper installation. Its **universal compatibility** with the **S54 3.2L engine** common in the E46 M3, including the **CSL and Competition Package variants** makes it the perfect choice for owners seeking to restore factory performance or replace a worn-out or damaged sensor. With its **long-lasting durability** and **OEM-level accuracy**, this sensor is engineered to deliver consistent, high-performance operation, ensuring your BMW s engine runs smoothly, efficiently, and with the precision it deserves. Trust in this high-quality aftermarket alternative to maintain the integrity of your M3 s legendary driving dynamics while extending the lifespan of your engine s critical control systems.

**Pros and Cons of buying a Autopart 85CMHJ Crank Position Sensor for a BMW M3 (2001-2006, 3.2L Base)**

### **Pros:**

1. **Compatibility** This sensor is specifically designed for BMW M3 models from 2001 to 2006 with the 3.2L base engine, ensuring a direct fit without modification.

2. **OEM Quality** Autopart often sources high-quality aftermarket parts that meet or exceed OEM standards, reducing the risk of premature failure.

3. **Cost-Effective** Compared to purchasing an OEM BMW sensor, this aftermarket option is typically more affordable while still providing reliable performance.

4. **Easy Installation** The sensor is designed for straightforward replacement, requiring minimal tools and expertise. Most mechanics or DIY enthusiasts can install it without issues.

5. **Reliability** A faulty crank position sensor can cause engine misfires, stalling, or failure to start. Replacing it with a known-good part restores proper engine function and prevents further damage.

6. **Warranty Coverage** Autopart usually offers a warranty (typically 6 months to 1 year), providing peace of mind against defects.

7. **Availability** This part is widely stocked by online retailers, reducing lead times compared to sourcing OEM parts from BMW dealers.

### **Cons:**

1. **Mixed Quality Reports** While many users report positive experiences, some customers have encountered inconsistencies in build quality or durability, particularly with lower-tier aftermarket brands. Always check reviews for specific feedback on this part.

2. **Potential Counterfeit Risks** Purchasing from untrusted sellers (e.g., third-party Amazon vendors or unknown marketplaces) increases the risk of receiving a fake or substandard part. Stick to reputable retailers like Autopart s official website or authorized dealers.

3. **No OEM Guarantee** Unlike genuine BMW parts, aftermarket sensors may not have the same long-term reliability or fitment precision, though this is rare with well-reviewed brands like Autopart.

4. **Limited Customization** Since this is a direct-fit sensor, there s no flexibility to upgrade or modify it beyond basic functionality.

5. **Diagnostic Dependence** If the sensor fails again shortly after replacement, you may need to troubleshoot wiring, connectors, or other related components, which could add time and cost.

### **Conclusion:**

The **Autopart 85CMHJ crank position sensor** is a practical and cost-effective choice for BMW M3 owners (2001 2006, 3.2L) experiencing crank sensor issues. It balances affordability with compatibility, making it a solid option for most drivers. However, the quality can vary depending on the seller, so prioritize purchasing from verified sources with good return policies. If budget allows, consider an OEM or high-end aftermarket alternative (e.g., Dorman or ACDelco) for added confidence in longevity.

### **Recommendation:**

- **Buy from Autopart s official website or a trusted BMW parts retailer** to avoid counterfeit parts.

- **Verify the sensor s condition upon arrival** check for manufacturing defects or damage.

- **Follow installation guidelines carefully**, ensuring proper connector alignment and torque specifications.

- **Monitor the sensor s performance post-installation** if issues persist, inspect wiring, ground connections, or the engine control unit (ECU).

- **Consider an extended warranty** if available, especially if you plan to keep the vehicle long-term.

For most users, this sensor will resolve crank position sensor-related problems effectively, but always weigh the pros and cons against your specific needs and budget.

Details:

Detailed Applications Years: Vehicle: Sub model: Engine: 2001 - 2006 BMW M3Base3.2L 6 Cyl. Color: Black. Crank Position Sensor fits BMW M3 2001 - 2006 3.2L 6 Cyl Base 85CMHJ: Brand: Autopart Premium condition: New Notes: Detailed Engine Crankshaft for E46 L6 2001 - 2006, Specifications Type. Terminal Quantity: 3.

part #: 85cmhj prices

  • $17.77-$22.88

specifications cranshafengin:

  • for makes: Bmw
  • for years: 2001-2006
  • brand: Autopart Premium
  • mpn: 85cmhj
  • part type: Crank Sensor
  • engine: 3.2l 6 Cyl
  • trim: Base
  • compatible make/model: Bmw M3
  • compatible years: 2001 2002 2003 2004 2005 2006 01 02 03 04 05 06
  • fitment info: Crank Position Sensor
  • manufacturer warranty: 12 Month Warranty
  • attention: Read Full Description To Confirm Fitment
  • cs-sku: 400

general cranshafengin:

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

payments cranshafengin:

  • other
  • wallet: Paypal
  • credit card: Diners-club

seller cranshafengin:

  • city: Irvine, California
  • # reviews: 23562
  • rating: 99.2%

returns cranshafengin:

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

shipping cranshafengin:

  • cost: $0.00
  • type: Fixed
  • service: Economy
  • class: Economy
  • transit: 3-7 Days

offer cranshafengin:

  • options: Ship-to-home
  • quantity: 1
  • started: March 30, 2026
  • availability: In Stock
  • sold: 0
for makes: bmw, for years: 2001-2006, part type: crank sensor, engine: 3.2l 6 cyl, trim: base, compatible make/model: bmw m3, compatible years: 2001 2002 2003 2004 2005 2006 01 02 03 04 05 06, fitment info: crank position sensor, manufacturer warranty: 12 month warranty, attention: read full description to confirm fitment, cs-sku: 400,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19584163687081731,
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