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Dodge Durango Transmission Input Shaft Speed Sensor Guide (2000-2008)

Experiencing harsh shifting or a check engine light in your Durango? A faulty input speed sensor could be the culprit.

3 minutes to read 2000-2008 Dodge Durango
Difficulty
1/5
Est. Time
0.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$50-$100
⚠️ Drivable, but... — Driving is possible, but the transmission will likely be in 'limp mode' with harsh, unpredictable shifting, which is unsafe for normal driving.
Key Takeaways
  • A bad input speed sensor on a 2000-2008 Durango typically causes harsh shifting and may trigger a P0715 code.
  • Replacement is a simple, one-bolt job that is very accessible for DIY repair on the side of the transmission.
  • For the 45RFE/545RFE transmissions, the input and output sensors are often the same part.
  • Quality aftermarket brands like NTK and Standard Ignition offer a reliable, cost-effective alternative to OEM Mopar parts.
The Automatic Transmission Input Shaft Speed Sensor is a critical component for your 2000-2008 Dodge Durango's transmission. It measures the rotational speed of the transmission's input shaft. This information is sent to the main computer, the Powertrain Control Module (PCM). The PCM uses this data, along with the output speed sensor's data, to determine when to shift gears and to control the torque converter. A correct signal from this sensor is essential for smooth shifting and overall transmission performance.

Is Your Durango Shifting Hard? Understanding the Input Speed Sensor

If your 2000-2008 Dodge Durango is experiencing transmission problems like harsh shifting or getting stuck in gear, a faulty Automatic Transmission Input Shaft Speed Sensor is a likely cause. This sensor works with the output speed sensor to tell the vehicle's computer how to shift the gears properly. When it fails, the computer gets confusing information, leading to noticeable and sometimes severe driving issues. For this generation of Durango, which often uses the 45RFE or 545RFE transmission, the input and output sensors are separate, externally mounted parts, making replacement relatively simple.

Pro Tip: Check Your Codes

Before buying any parts, use an OBD-II scanner to check for diagnostic trouble codes (DTCs). A common code for a failing input speed sensor is P0715 (Input/Turbine Speed Sensor Circuit Malfunction). This code specifically points to an issue with the input sensor's circuit, helping you confirm the diagnosis.

🎬 Watch this video to understand the P0715 code and fixes.

Choosing the Right Aftermarket Sensor: NGK (NTK) vs. Standard Ignition

When replacing a sensor, you don't always need to pay dealer prices for an OEM part. For a part like this, a quality aftermarket sensor can provide reliable performance for less money.

  • NGK (NTK): NTK is the sensor division of NGK, a brand widely respected as an Original Equipment (OE) supplier for many automakers. Their sensors are known for high quality and are often considered a top-tier aftermarket choice, just below Mopar itself. They are engineered to match OE fit and performance.
  • Standard Ignition (SMP): Standard Motor Products is a long-standing American company with a solid reputation in the aftermarket. While quality can sometimes vary across their broad product lines, they are generally considered a reliable choice for common electronic parts.

For a critical electronic sensor on your Durango, both NTK and Standard are reputable options. NTK often has a slight edge in perception due to its OE supplier status. However, both brands are a significant step up from no-name online marketplace brands and offer a good balance of quality and value.

Cost of Replacing a Dodge Durango Input Speed Sensor (2000-2008)

Part Type Estimated Cost
New OEM (Mopar) $40 - $60
New Aftermarket (NGK, Standard) $37 - $40
Shop Labor $50 - $100

Frequently Asked Questions (FAQ)

Where is the input speed sensor on a 2000-2008 Dodge Durango?

For Durangos with the 45RFE or 545RFE transmission, there are two sensors on the driver's side of the transmission case. The input speed sensor is the one located towards the front of the transmission (closer to the engine). The output sensor is located at the rear.

Are the input and output speed sensors the same part?

On many 45RFE and 545RFE transmissions used in this era of Durango, the input and output speed sensors are identical and interchangeable. They have the same part number. 🎬 Watch a mechanic replace both sensors on the 45RFE transmission. However, it is always best to confirm the part number for your specific vehicle.

Can I replace this sensor myself?

Yes, this is a very DIY-friendly job for most 2000-2008 Durangos. The sensor is held in by a single 8mm bolt and has an electrical connector. The job requires basic hand tools and can typically be completed in under 30 minutes.

🎬 See this step-by-step walkthrough for replacing the input speed sensor.
Will a bad input speed sensor cause the transmission to go into 'limp mode'?

Yes, a failed input speed sensor can cause the transmission to enter 'limp mode,' where it may get stuck in second or third gear to prevent further damage. This will be accompanied by a Check Engine Light.

Dodge & Jeep Transmission Sensor Replacement On 45RFE & 545RFE
Dodge & Jeep Transmission Sensor Replacement On 45RFE & 545RFE
2004-2009 Dodge Durango 545RFE Transmission Input Speed Sensor replacement
2004-2009 Dodge Durango 545RFE Transmission Input Speed Sensor replacement
Causes and Fixes P0715 Code: Input/Turbine Speed Sensor “A” Circuit
Causes and Fixes P0715 Code: Input/Turbine Speed Sensor “A” Circuit
" RFE " Sensor Swap Repair Install 45RFE 545RFE 65RFE 66RFE 68RFE
" RFE " Sensor Swap Repair Install 45RFE 545RFE 65RFE 66RFE 68RFE

Technical Specifications

OEM Part Numbers: 4799061AB 52854001AA

Externally mounted sensor, typically secured with one bolt on the driver's side of the 45RFE or 545RFE transmission case.

Wrenchy
Article researched & written by
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Meet Wrenchy → Updated Apr 19, 2026

The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.

Year Coverage
This article covers the Automatic Transmission Input Shaft Speed Sensor for:
  • Dodge Durango: 200020012002200320042005200620072008
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