The 803190287 Return Oil Filter is a genuine XCMG hydraulic return line filter designed for GR series motor graders. This high-efficiency filter removes contaminants from hydraulic oil before it returns to the tank, protecting pumps, valves, and actuators from premature wear. The 803190287 return oil filter features a spin-on design with a high-capacity cellulose/synthetic blend media and a built-in bypass valve. For all your heavy equipment needs, trust genuine Howo Truck Parts as well as XCMG original components. It is a critical component for maintaining hydraulic system cleanliness, reducing component wear, and extending oil service life on GR series graders.
The 803190287 Return Oil Filter is manufactured to ISO 16889 standards, with a filtration efficiency of 98% at 10 microns and a beta ratio of β10 ≥ 200. The filter has a nominal flow rating of 150 L/min and a maximum working pressure of 25 bar (360 PSI). The built-in bypass valve opens at 2.5 bar differential pressure to ensure continuous oil flow even when the filter is clogged. As a genuine XCMG part, it matches the original thread size (M30 × 1.5), gasket diameter, and bypass setting exactly.
Engineered for extreme durability, the 803190287 Return Oil Filter has an operating temperature range of -30°C to +120°C and is compatible with mineral oils, synthetic hydraulic fluids, and biodegradable oils. The heavy-duty steel canister is powder-coated for corrosion resistance, and the internal components are bonded with high-strength adhesive. Each filter is 100% leak-tested and verified for burst strength. Using genuine XCMG return oil filters prevents contamination-related valve sticking, pump cavitation, and actuator scoring, ensuring reliable hydraulic performance.
| Parameter | Specification |
|---|---|
| OEM Number | 803190287 |
| Product Name | Return Oil Filter (Hydraulic Return Line Filter) |
| Brand | XCMG (Genuine OEM) |
| Filter Type | Spin-on, cellulose/synthetic media |
| Filtration Efficiency | 98% @ 10 microns (β10 ≥ 200) |
| Flow Rating | 150 L/min |
| Maximum Working Pressure | 25 bar (360 PSI) |
| Bypass Valve Setting | 2.5 bar ±10% |
| Thread Size | M30 × 1.5 |
| Gasket Diameter | 72 mm (I.D.) × 82 mm (O.D.) |
| Outer Diameter | 108 mm |
| Height | 210 mm |
| Temperature Range | -30°C to +120°C |
| Fluid Compatibility | Mineral oil, synthetic hydraulic fluids |
| Service Interval | 500 hours or as indicated by differential pressure gauge |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR300, GR350 |
| Warranty | 12 months / unlimited hours |
Genuine XCMG return oil filter is essential for maintaining hydraulic system cleanliness and reliability. Its advanced media and robust construction outlast generic filters, preventing valve sticking, pump wear, and costly component failures.
Aftermarket return filters often use low-quality media that either restricts flow or allows particles to pass through. The genuine 803190287 Return Oil Filter from XCMG features a high-capacity synthetic/cellulose blend with a precisely calibrated bypass valve. Independent tests show that OEM filters maintain 98% efficiency for 500 hours, while generic filters may drop to 80% after 250 hours. This reliability prevents contamination-related hydraulic failures, saving thousands in repair costs.
Each 803190287 Return Oil Filter is traceable to its production batch, with records of media batch, burst strength, and bypass valve calibration. The filter canister is stamped with the XCMG part number and date code for easy identification. XCMG’s quality control includes 100% leak testing and random sampling for ISO 16889 multi-pass filtration testing. Only filters that meet all specifications are shipped, ensuring reliable protection for your grader’s hydraulic system.
Installing the 803190287 Return Oil Filter requires relieving hydraulic system pressure. Clean the filter head mounting surface. Apply a thin film of clean hydraulic oil to the new filter’s gasket. Spin the filter on by hand until the gasket contacts the head, then tighten an additional 3/4 turn (approximately 25 Nm). Do not overtighten. Start the engine and check for leaks. If a differential pressure gauge is installed, reset it after installation.
Inspect the 803190287 Return Oil Filter every 250 hours using the differential pressure gauge. Replace the filter when the gauge reaches the red zone or every 500 hours. If the filter appears collapsed or the bypass valve has opened, change the hydraulic oil immediately. Store spare filters in a clean, dry place. Keep a stock of this filter in your parts inventory, as a clogged return filter can cause hydraulic overheating and component damage.
A dirty or incorrect return oil filter allows contaminated oil to circulate, causing valve spools to stick, pumps to wear, and actuators to leak. The genuine 803190287 Return Oil Filter restores proper filtration, maintaining hydraulic oil cleanliness to ISO 4406 code 18/16/13 or better. Operators report smoother cylinder operation, faster cycle times, and reduced oil changes after switching to OEM filters.
In a fleet study of 25 XCMG GR215 graders, those using genuine 803190287 Return Oil Filters had 70% fewer hydraulic pump failures and 60% longer oil life over 5,000 hours compared to machines with aftermarket filters. The improved filtration also reduced valve block rebuilds by 80%. For contractors who rely on hydraulic performance, an OEM return oil filter is a small investment with significant returns.
XCMG’s filter plant uses automated pleating and bonding lines to produce the 803190287 Return Oil Filter with consistent quality. The media is pleated to maximize surface area while maintaining low restriction. The steel canister is deep-drawn and e-coated for corrosion resistance. The bypass valve is calibrated on a dedicated test stand to ensure it opens at exactly 2.5 bar. Each filter is 100% pressure-tested and validated for burst strength (minimum 50 bar).
All 803190287 Return Oil Filters are individually sealed in poly bags and packed in boxes of 6 or 12. Bulk orders of 24 or more are palletized. XCMG’s global distribution network ensures fast delivery to any location. For fleet operators, filter exchange programs are available to minimize inventory costs. Technical support for correct installation is available via the contact buttons above.
The 803190287 Return Oil Filter directly replaces original part numbers 803190286 and 803190288. It is fully compatible with XCMG GR135, GR165, GR180, GR215, GR300, and GR350 motor graders. This filter is used in the hydraulic return line after the cooler on most models. For the suction strainer or pressure line filter, refer to parts 803190289 and 803190290. Always verify your hydraulic system configuration before ordering.
When replacing a filter, also inspect the filter head for damage and change the hydraulic oil if contamination is suspected. XCMG recommends replacing the return oil filter every 500 hours or annually, whichever comes first. Keep one spare 803190287 Return Oil Filter in your service truck for scheduled maintenance. For fleet operators, bulk orders of 24 or more filters include a 10% discount and free shipping.
For alternative micron ratings (e.g., 5-micron for servo systems), use the buttons above to contact our technical sales team. We can also supply filters with Viton seals for high-temperature fluids. Always provide your grader’s serial number and a photo of the existing filter when ordering the 803190287 Return Oil Filter to ensure perfect fitment.
