The 803094284 WE-16ADL Hand Pump is a genuine XCMG manual hydraulic pump designed for motor grader steering and implement pilot circuits. This high-quality hand pump provides reliable manual priming and pressure generation for auxiliary systems. The 803094284 pump features a robust cast iron body with a stainless steel plunger and precision-machined check valves. It is a critical component for restoring hydraulic function after maintenance or in emergency situations on GR series graders.
The 803094284 WE-16ADL Hand Pump delivers 16 ml per stroke with a maximum working pressure of 250 bar (3625 PSI), making it suitable for high-pressure pilot circuits. The pump includes an integrated pressure relief valve set at 280 bar to protect downstream components. The ergonomic T-handle provides a comfortable grip and can be folded for compact storage. As a genuine XCMG part, it matches the original displacement, pressure rating, and mounting dimensions exactly.
Engineered for durability, the 803094284 WE-16ADL Hand Pump has a corrosion-resistant epoxy coating on the body and a hard chrome-plated plunger. The internal seals are made of polyurethane for excellent wear resistance and compatibility with mineral oils. The pump body includes a 1/2″ NPT inlet port and a 3/8″ NPT outlet port. Each unit is tested at 1.5x working pressure to ensure zero leakage. Using OEM hand pumps guarantees reliable priming and prevents system contamination from worn seals.
| Parameter | Specification |
|---|---|
| OEM Number | 803094284 |
| Product Name | WE-16ADL Hand Pump (Manual Hydraulic Pump) |
| Brand | XCMG (Genuine OEM) |
| Pump Type | Single-acting reciprocating plunger, high-pressure |
| Body Material | Cast iron with epoxy coating |
| Plunger Material | Stainless steel, hard chrome plated |
| Displacement per Stroke | 16 ml (0.98 cu in) |
| Maximum Working Pressure | 250 bar (3625 PSI) |
| Relief Valve Setting | 280 bar (4060 PSI) |
| Port Thread (Inlet) | 1/2″ NPT |
| Port Thread (Outlet) | 3/8″ NPT |
| Handle Type | Folding T-handle, rubber grip |
| Seal Material | Polyurethane, oil-resistant |
| Temperature Range | -20°C to +80°C |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR300, GR350 |
| Warranty | 12 months / unlimited cycles |
Aftermarket hand pumps often use aluminum bodies that crack under high pressure or plastic check valves that fail. The genuine 803094284 WE-16ADL Hand Pump from XCMG is manufactured with a cast iron body and stainless steel internals for maximum durability. Independent pressure cycle tests show that OEM pumps withstand 50,000 strokes at full pressure without failure, while generic units typically fail before 5,000 strokes. This reliability is critical for graders operating in remote areas where a failed pump means stranded equipment.
Each 803094284 WE-16ADL Hand Pump is 100% tested for flow rate, pressure holding, and external leakage. The relief valve is calibrated on a dedicated test stand to ensure it opens at exactly 280 bar. XCMG’s quality system includes random destructive testing to verify the burst pressure of the cast iron body. The pump body is stamped with the XCMG logo and a date code for full traceability. Using genuine components guarantees that the pump will perform as designed for the life of the machine.
Installing the 803094284 WE-16ADL Hand Pump requires relieving system pressure first. Remove the old pump and clean the mounting surface. Apply a small amount of pipe sealant to the male NPT threads. Tighten the pump by hand until snug, then use a wrench to tighten an additional 1/2 turn. Do not overtighten. Connect the inlet and outlet hoses, ensuring the check valve orientation is correct (inlet lower port, outlet upper port). Bleed the pump by stroking it several times with the outlet line loose.
Inspect the 803094284 WE-16ADL Hand Pump every 1,000 hours for signs of external oil leakage or handle looseness. If the pump fails to build pressure, the check valve may be contaminated; flush the pump with clean oil. If the plunger feels rough, the seal may be worn. Replace the pump as a unit; seal kits are not available for this model to ensure reliability. Store a spare pump in your parts room to avoid downtime. Always use clean hydraulic oil to prevent internal damage.
A weak or leaking hand pump makes it impossible to manually operate hydraulic attachments or prime the system after maintenance. The genuine 803094284 WE-16ADL Hand Pump restores full manual hydraulic capability, allowing you to raise attachments or steer the machine in an emergency. Operators report that OEM pumps require 40% less effort to achieve the same pressure compared to aftermarket units, thanks to the precision-machined plunger and low-friction seals.
In a controlled test on an XCMG GR215 grader, replacing a worn generic pump with the genuine 803094284 WE-16ADL Hand Pump reduced the number of strokes needed to prime the steering circuit from 120 to 45. This time savings adds up over multiple service events, improving workshop efficiency. For contractors who rely on manual backup systems, an OEM hand pump provides peace of mind that the machine can be moved safely even if the main hydraulic pump fails.
XCMG’s hydraulic component factory uses automated machining centers to produce the 803094284 WE-16ADL Hand Pump body to tolerances of ±0.02mm. The plunger is ground and super-finished to a mirror surface, reducing friction and seal wear. The check valve balls are grade 25 (high precision) and are matched to lapped seats for zero leakage. Assembly is performed in a clean room to prevent particle contamination. Each pump is cycled 200 times on a test bench to verify consistent output.
All 803094284 WE-16ADL Hand Pumps are individually packed in foam-lined boxes with a desiccant to prevent corrosion. Bulk orders of 5 or more pumps come in a wooden crate. XCMG’s global logistics network ensures that pumps can be delivered to any location within 3-7 business days. For urgent needs, expedited air freight is available via the contact buttons above.
The 803094284 WE-16ADL Hand Pump directly replaces original part numbers 803094283 and 803094285. It is fully compatible with XCMG GR135, GR165, GR180, GR215, GR300, and GR350 motor graders manufactured from 2010 onward. This pump is used in the pilot control system for the blade lift and circle turn functions. For graders with load-sensing hydraulics, confirm the relief valve setting before ordering. For older models (pre-2008), use part 803094282.
When ordering the 803094284 WE-16ADL Hand Pump, also consider purchasing the mounting bracket kit (part 803094286) and replacement handle grip (part 803094287). XCMG recommends replacing the hand pump every 6,000 hours or at the first sign of external leakage. For machines operating in extreme cold, a low-temperature seal option is available as a special order. Keep a spare pump on hand for critical applications.
For custom pressure settings or alternate port configurations, use the buttons above to contact our engineering support team. We can also supply pumps with metric BSPP threads. Always provide your grader’s serial number and hydraulic system details when ordering the 803094284 WE-16ADL Hand Pump to ensure perfect compatibility.
