SPARKLING Caterpillar Yoke Assembly – Durable Excavator Part

The CATERPILLAR 441-9224 Transfer Gear Yoke Assembly (also listed as CA4419224 or 4419224) is a heavy-duty drivetrain component designed for use in Caterpillar off-highway trucks and track-type tractors, including models 773E, 775G, 775F, 773D, 773G, and D10R.

This transfer gear yoke assembly plays a critical role in the power transmission system, connecting rotating components within the transfer gear and ensuring smooth torque delivery from the engine to the driveline. Built to endure high loads, vibrations, and rugged working conditions, the 441-9224 yoke assembly helps maintain drivetrain alignment and reliability, even under extreme duty cycles.

Manufactured to OEM specifications, this component guarantees a precise fit, excellent durability, and long-term performance—making it a trusted replacement choice for Caterpillar heavy equipment operating in mining, quarrying, and construction environments.

   SPARKLING MACHINERY NEW 0501.206.521 Joint Double is a dedicated hydraulic connection component for Komatsu excavators (widely used in construction, mining, and infrastructure projects). As the "hydraulic pipeline linker", it connects two hydraulic tubes to ensure smooth, leak-free oil flow between system components—supporting key functions like boom lifting, bucket digging, and swing movements, while adapting to the excavator’s operational vibration and spatial layout.
   Meeting Komatsu OEM standards (part no. 0501.206.521), it endures 30 MPa working pressure, -30°C to 95°C temperatures, resists hydraulic oil corrosion and wear, and maintains tight connection performance. Strict testing guarantees seamless compatibility with applicable Komatsu models and long-term hydraulic system stability.

   SPARKLING MACHINERY NEW 440-00257 Cylinder;Arm is a dedicated hydraulic actuation component tailored for compatible heavy-duty construction machinery, such as excavators and loaders. As the core of the machinery’s arm movement system, it converts hydraulic pressure into linear force to drive the arm’s lifting, lowering, and extending actions—supporting critical on-site tasks like digging, material grabbing, and precision placement in construction, mining, or infrastructure projects. This function is essential for maintaining the machinery’s operational flexibility and load-bearing capacity, directly ensuring smooth coordination between the arm and bucket, and preventing movement lag or jams that could reduce work efficiency or cause safety hazards.

   Engineered to match original equipment performance standards, it maintains stable pressure retention and smooth piston movement even under harsh working conditions, including heavy load stress (up to rated 500 kN), continuous vibration, and exposure to dust or hydraulic oil contaminants. It resists internal leakage and cylinder wall wear, avoiding hydraulic system inefficiencies that lead to unplanned downtime. Backed by strict performance verification, it guarantees reliable arm actuation to support uninterrupted operation of compatible heavy-duty machinery.

   SPARKLING MACHINERY NEW EC350E EC380EHR 14508626 Wiper Relay is a key electrical control component for Volvo EC350E and EC380EHR excavators (widely used in heavy construction, mining, and infrastructure projects). As the "wiper operation controller", it regulates power supply to the excavator’s windshield wiper system—enabling smooth wiper activation, speed adjustment, and shutdown during rainy, snowy, or dusty conditions. This ensures clear visibility for operators during tasks like digging, lifting, and rock breaking, while preventing wiper motor damage from electrical overloads.
   Meeting Volvo OEM standards (part no. 14508626), it endures -30°C to 85°C temperatures, resists moisture and vibration, and guarantees stable electrical switching. Strict testing ensures seamless compatibility with the two Volvo models and long-term reliability of the wiper system.