Womala Auto Transmission Input Speed Sensor OE 1850527 Transmission Sensor for Volvo XC60
The Transmission Input Speed Sensor (Transmission Sensor, OE Number: 1850527) is a key electronic component for monitoring transmission operation, exclusively designed for Volvo XC60 models produced between 2015–2025. As an OE-grade part, it is installed on the transmission case, near the input shaft (connected to the engine). Its core role is to real-time detect the rotational speed of the transmission input shaft, transmitting speed data to the vehicle’s TCM (Transmission Control Module)—this data is critical for the TCM to adjust shift timing, clutch engagement, and torque distribution, ensuring smooth transmission operation.
Crafted from high-reliability materials—including a heat-resistant plastic housing (to withstand high temperatures inside the transmission case) and a precision inductive or Hall-effect sensing element (for accurate speed signal output)—this sensor operates stably in harsh transmission environments: high heat, vibration, and exposure to transmission fluid. It strictly adheres to Volvo’s electrical and dimensional standards, ensuring consistent signal transmission (without interference) and a tight seal with the transmission case (to prevent fluid leakage).
Core Functions
- Input Shaft Speed Detection: Continuously monitors the rotational speed of the transmission input shaft, converting mechanical rotation into electrical signals and transmitting them to the TCM. This data helps the TCM calculate the speed ratio between the engine and transmission.
- Shift Timing Optimization: Enables the TCM to adjust shift timing (e.g., upshifting or downshifting) based on real-time input shaft speed and engine load. This ensures smooth, timely shifts, reducing transmission shock and improving driving comfort.
- Transmission Protection: Works with the TCM to detect abnormal speed differences (e.g., input shaft speed mismatch with engine speed) which may indicate issues like clutch slippage. The TCM can then trigger protective measures (e.g., limiting torque) to prevent transmission damage.
Compatible Vehicles
This Transmission Input Speed Sensor (OE: 1850527) is tailored for Volvo XC60 models within the specified production years:
| Model | Applicable Year Range |
| Volvo XC60 | 2015–2025 |
Notes: Transmission sensors may vary by transmission type (e.g., automatic vs. semi-automatic) even within the same model year range. For 100% fitment accuracy—confirm compatibility with your XC60’s specific transmission configuration—verify with your vehicle’s VIN (Vehicle Identification Number) or consult Volvo’s official service manual. This avoids mismatches caused by subtle differences in sensor mounting or signal protocols.
Frequently Asked Questions
Q: How to determine if the bumper bracket needs replacement?
A: Signs of a failing bumper bracket include visible damage or deformation, misaligned bumper panels, unusual noises from the front end, or if the bumper appears loose or sagging on one side.
Q: What should be paid attention to when replacing the bumper bracket?
A: For optimal results, we recommend professional installation. Key considerations include ensuring proper alignment of all mounting points, checking for additional damaged components, and verifying all fasteners are properly torqued to specification.
Why Choose Our Products
- Extensive Industry Experience: 13 years specializing in Volvo auto parts with precise product matching and technical solutions.
- Quality Assurance: 10-stage quality inspection process including durability testing, surface roughness analysis, and dimensional verification.
- Manufacturing Excellence: 15,000㎡ production base with 10,000+ SKUs in inventory for fast order fulfillment.
- Strategic Partnerships: Collaborations with 50+ factories including suppliers to international brands like Bosch and Hella.
