The 803587270 Transmission Oil Pressure Sensor is a genuine OEM component manufactured by XCMG for heavy-duty motor graders and construction equipment. This sensor features a 1/8″ NPT thread and provides accurate pressure readings to the transmission control unit.
Designed to withstand high vibration, temperature extremes, and oil contamination, the 803587270 sensor ensures reliable clutch and shift pressure monitoring. It directly replaces failed or leaking sensors on XCMG GR series graders and compatible transmissions.
Each unit is factory-calibrated to deliver a linear 0.5-4.5V output proportional to pressure from 0 to 350 psi. Plug-and-play installation with OEM connector saves downtime and prevents transmission damage.
| Parameter | Specification |
|---|---|
| OEM Number | 803587270 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Transmission Oil Pressure Sensor |
| Thread Size | 1/8″ NPT |
| Pressure Range | 0 to 350 psi (0 to 24 bar) |
| Output Signal | 0.5V – 4.5V (ratiometric, linear) |
| Supply Voltage | 5V DC ±0.25V (regulated) |
| Operating Current | < 10 mA |
| Accuracy | ±1.5% full scale (at 25°C) |
| Response Time | < 2 ms |
| Operating Temperature | -40°C to +125°C |
| Media Compatibility | Transmission oil, hydraulic oil, engine oil |
| Proof Pressure | 700 psi (2x rated range) |
| Burst Pressure | 1050 psi |
| Connector Type | Deutsch DT04-3P (3-pin sealed) |
| Housing Material | Stainless steel 304 + engineering plastic |
| IP Rating | IP67 (mated) |
| Vibration Resistance | 20g (10-2000Hz) |
| Compatible Models | XCMG GR135, GR165, GR215, GR300, GR350 motor graders |
The XCMG 803587270 Transmission Oil Pressure Sensor monitors hydraulic pressure inside the gearbox. This data is essential for the transmission control unit (TCU) to execute smooth gear shifts and protect clutches from overheating or slipping.
When pressure drops below a safe threshold, the TCU triggers a warning light and may initiate a limp-home mode. A faulty or leaking sensor can cause erratic shifting, delayed engagement, or even complete transmission failure. Replacing it with the genuine 803587270 restores proper function.
This sensor is built with a piezoresistive silicon die that offers excellent long-term stability. Unlike cheap switches, the 803587270 provides continuous pressure data, allowing the TCU to adapt shift firmness based on load and temperature.
XCMG motor graders typically use ZF or XCMG-branded powershift transmissions. The 803587270 sensor mounts directly into the transmission valve body or filter housing via a 1/8″ NPT port. The original connector is a 3-pin Deutsch DT series, fully sealed against moisture.
Installation requires only basic hand tools: remove the old sensor, clean the threads, apply thread sealant (not included), and torque to 15 Nm. Then reconnect the harness. No calibration or programming is needed because the TCU automatically reads the new sensor’s output.
Typical symptoms of a failed sensor include: transmission fault code (e.g., “Pressure Sensor Circuit”), harsh or delayed shifts, intermittent gear engagement, or the transmission staying in neutral. Replacing with OEM 803587270 resolves these issues immediately.
The 803587270 sensor withstands transmission oil temperatures up to 125°C continuously, with peaks of 135°C. The stainless steel housing resists corrosion from acidic oil byproducts and external road salt. Internal electronics are potted in epoxy to eliminate vibration-induced failure.
XCMG tests every sensor to 500 hours of oil immersion at 120°C, followed by thermal shock from -40°C to +125°C for 100 cycles. No drift in output voltage beyond ±0.5% is allowed. This ensures that your grader’s transmission always receives accurate pressure data.
The sensor also features integrated overvoltage protection (up to 24V on the 5V supply line) and reverse polarity protection. If you accidentally swap power and ground, the sensor will not be damaged – it simply won’t output until corrected.
Aftermarket pressure sensors often use incorrect thread lengths (leading to leaks) or have non-linear output curves (confusing the TCU). The genuine 803587270 is manufactured to XCMG’s exact specifications, with the thread depth and sealing cone identical to the original.
Additionally, counterfeit sensors may use low-grade piezoresistive chips that drift after a few hundred hours, causing false low-pressure warnings and unnecessary transmission overhauls. Protect your investment with the OEM 803587270.
XCMG backs this sensor with a 12-month warranty against defects. Each unit is laser-etched with the XCMG logo and part number for easy identification. This supersedes older numbers 803587112, 803587205, and 803587245.
The 803587270 produces a linear analog voltage: 0.5V at 0 psi, 2.5V at 175 psi, and 4.5V at 350 psi. The TCU monitors this signal and expects a plausible range. If voltage stays at 0.5V while the engine is running, the TCU triggers a “low pressure” code.
You can test the sensor using a multimeter: supply 5V between pin A (Vcc) and pin B (ground), then measure output on pin C. Pressure applied with a hand pump should produce corresponding voltage. No output or stuck voltage indicates a failed sensor.
For fleet maintenance, having spare 803587270 sensors on hand eliminates downtime. A failed sensor typically shows as transmission fault code 23 or 47 on XCMG diagnostic displays. Replace immediately to avoid transmission damage.
The 803587270 Transmission Oil Pressure Sensor is stocked in XCMG’s warehouses in North America, Europe, Asia, and the Middle East. Standard air freight delivers within 3-7 business days. For urgent repairs, expedited shipping (1-2 days) is available.
Bulk orders (10+ pieces) receive discounted pricing and can be shipped via sea freight. Each sensor is individually bagged with desiccant and sealed in anti-static packaging. XCMG’s global parts network ensures you never face long delays.
For mining or large construction fleets, consignment stock options are available. Keep your motor graders operating at peak efficiency with genuine XCMG 803587270 sensors – the smart choice for transmission reliability.
Don’t risk your grader’s transmission with unknown aftermarket sensors. The OEM 803587270 provides the exact pressure readings required for smooth shifting and long transmission life. Order today and experience genuine XCMG quality.
Whether you are replacing a failed sensor or stocking spare parts, the 803587270 is the definitive solution. Trust XCMG original equipment to keep your motor grader productive and reliable for years to come.
