The genuine XCMG 90° Rubber Elbow with OEM number 800164919 is a heavy-duty formed hose engineered for XCMG articulated dump trucks, wheel loaders, and off-highway equipment.
This 90-degree elbow directs coolant, air, or low-pressure hydraulic fluid around tight engine bay corners, replacing two straight hoses and a metal fitting.
Manufactured from high-quality EPDM rubber with a synthetic fabric reinforcement, the XCMG 800164919 elbow resists coolant, oil, and ozone while remaining flexible from -40°C to +120°C.
Its seamless mandrel‑formed bend eliminates internal restriction and provides smooth flow, reducing pressure drop and preventing hose kinking.
Ideal for radiator connections, turbocharger air ducts, and heater hose routing on AD‑series trucks, this elbow ensures leak‑free, long‑lasting service in extreme mining conditions.
The XCMG 90° Rubber Elbow 800164919 simplifies hose routing in tight engine compartments by eliminating the need for two straight hoses and a metal adapter.
Its smooth, mandrel‑formed bend provides unrestricted flow, reducing pressure drop and preventing the internal collapse that can occur when a straight hose is bent too sharply.
On AD60 and AD80 trucks, this elbow is commonly used on the lower radiator connection, the turbocharger air inlet, and the heater core bypass.
A cracked or bulging elbow can cause coolant loss, overheating, or intake leaks leading to dust ingestion. Replacing it with a genuine XCMG elbow restores reliability and peace of mind.
The 800164919 elbow is molded from high‑grade EPDM rubber, which offers excellent resistance to coolant, diesel, and ozone while remaining flexible at -40°C.
Unlike natural rubber, EPDM does not harden or crack under the high under‑hood temperatures typical in mining equipment.
The embedded polyester fabric reinforcement provides burst strength (tested to 2.0 MPa) and prevents the elbow from collapsing under vacuum, a common failure in unreinforced hoses.
The inner surface is smooth to minimize flow turbulence, and the outer surface is ribbed for abrasion resistance. All edges are molded with a smooth transition to prevent hose clamp cutting.
The XCMG 90° rubber elbow 800164919 is a direct OEM replacement for original part numbers 800164919A, 860124597, and 860298771.
It fits the standard 51 mm hose barbs used on AD‑series radiators, water pumps, and charge air coolers. The 100 mm leg length provides ample space for clamp installation.
The elbow is designed to be used with constant‑tension spring clamps or worm‑drive clamps; XCMG recommends using spring clamps (part 800164919‑CL) for best results.
For AD45 trucks with smaller 38 mm hoses, a reducing elbow adapter is available (suffix “-R”). Always verify the hose barb diameter before ordering.
To replace a worn elbow, first drain the coolant or depressurize the air system. Loosen the hose clamps and remove the old elbow.
Inspect the barbed fittings for corrosion or damage – if the barbs are worn, replace the component. Clean the barbs with a wire brush.
Slide the new XCMG 800164919 elbow onto the barbs, ensuring the elbow is oriented correctly (the 90° bend should align with the routing).
Push the hose fully onto the barb until it bottoms out. Position the clamps 3–5 mm from the end of the hose. Tighten worm‑drive clamps to 4–6 Nm; spring clamps require no adjustment.
Refill coolant and run the engine to operating temperature, then re‑tighten the clamps. Check for leaks. Inspect the elbow every 500 hours for cracking or bulging.
Replace the elbow immediately if you see any surface cracks, soft spots, or if the rubber feels hard and brittle. Service life in normal conditions is 6,000–8,000 hours.
Counterfeit rubber elbows sold as 800164919 often use natural rubber or low‑grade SBR that cracks within months of exposure to coolant and ozone.
Symptoms include visible surface cracking, swelling, or the elbow becoming soft and bulging under pressure. Genuine XCMG elbows have a smooth, satin‑finish black surface, a laser‑etched part number, and a holographic label on the packaging.
Another common issue is incorrect wall thickness. Aftermarket elbows may have thinner walls that collapse under vacuum, restricting coolant flow and causing overheating.
Squeeze the elbow – genuine XCMG feels firm but flexible; counterfeits often feel spongy or excessively hard. The reinforcement fabric should be visible on the cut edge.
Incorrect bend angle: Some aftermarket elbows have a 75° or 105° angle, causing strain on the connections. Genuine XCMG elbows are precisely 90° ± 2°.
A burst coolant elbow can cause rapid engine overheating, leading to head gasket failure or a cracked cylinder head – repairs costing $5,000–10,000.
Replacing a suspect elbow with a genuine XCMG 800164919 elbow costs approximately $18. This small investment prevents catastrophic engine damage.
Predictive maintenance: During daily inspections, look for coolant stains or white crust around the elbow. Also, feel the elbow for soft spots – a spongy feel indicates internal delamination.
Replace the elbow every 4,000 hours as part of a preventive cooling system overhaul. Also replace it when replacing the radiator or water pump.
Payback analysis: A genuine elbow costs ~$18. If it prevents one engine overheat that would require a $4,000 repair, the ROI exceeds 220 times the cost. For fleets, stocking a few elbows eliminates downtime waiting for emergency orders.
Every XCMG 90° Rubber Elbow 800164919 is manufactured in an IATF 16949‑certified facility. Each batch undergoes 100% visual inspection, pressure testing (1.5× working pressure), and burst testing on samples.
Random samples are subjected to thermal aging (1,000 hours at 120°C), ozone resistance (100 pphm for 72 hours), and coolant immersion testing. XCMG provides a 24‑month warranty against cracking, delamination, or material defects.
Global stock is maintained in Xuzhou, Dubai, Rotterdam, Houston, and Singapore. Emergency orders ship within 24 hours.
Bulk packs of 10 elbows (part number 800164919‑B10) are available for fleet customers at a 15% discount. Each elbow is individually sealed in a plastic bag with a desiccant and includes a pair of spring clamps.
To verify authenticity, scan the QR code on the packaging – it links to the test certificate showing pressure test results, material batch, and date of manufacture.
Always insist on genuine XCMG 800164919; counterfeit elbows have been known to burst under normal operating pressure, causing sudden coolant loss and engine damage.
XCMG engineers tested the 800164919 rubber elbow under extreme conditions: 10,000 thermal cycles from -40°C to +120°C, 2,000 hours of random vibration at 20g RMS, and 1,000 hours of coolant immersion at 110°C.
The elbow showed no cracking, no change in flexibility, and the reinforcement remained intact. The rubber retained 90% of its original tensile strength.
For applications near the exhaust manifold (where temperatures can exceed 150°C), XCMG offers a silicone version (suffix “-SI”) rated to 200°C continuous.
The elbow’s outer layer is also resistant to diesel, oil, and salt spray, making it suitable for coastal mining operations. The material is flame‑retardant to FMVSS 302 standards.
