SPARKLING Caterpillar Polyamide Switch – Durable Excavator Part

The Caterpillar Switch GP-Toggle (Part No. CA1586634 / 158-6634 / 1586634) is a genuine OEM electrical component used in various CAT track loaders and excavators, including models 963D, 973D, 953D, 330D MH, and 325D.

Manufactured from high-quality polyamide plastic, this toggle switch is engineered to provide durable performance, electrical reliability, and resistance to heat, wear, and vibration — all critical for heavy-duty applications. It plays a key role in controlling specific machine functions from the operator cab, offering responsive switching and long operational life.

This part is an ideal replacement for worn or faulty switches in your Caterpillar equipment. Its precise fit and OEM-grade construction ensure hassle-free installation and consistent performance in demanding jobsite conditions.

   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 EC240B EC240C EC290B EC290C VOE21814758 Cable Harness is a dedicated electrical connection component for VOLVO EC240B, EC240C, EC290B, and EC290C crawler excavators (widely used in construction, mining, and large-scale infrastructure projects). As the "electrical communication backbone" of the excavator, it transmits stable electrical signals between core components—such as ECUs, sensors, hydraulic valves, and cab instruments—to ensure smooth operation of critical functions like engine control, precision digging, and track movement during high-intensity tasks.
   Meeting VOLVO OEM standards (part no. VOE21814758), it endures -30°C to 85°C temperature fluctuations, resists moisture, dust, and mechanical abrasion, and maintains reliable insulation. Strict performance testing guarantees seamless compatibility with the four VOLVO models and long-term stable signal transmission.

SPARKLING MACHINERY offers the high-quality ZGAQ-02250 Joint Housing (RH), compatible with Hyundai wheel excavator models R170W-7, R170W-7A, R170W-9S, and R180W-9S. Precisely manufactured for a perfect fit and long-lasting performance, each unit is quality-checked before shipment. Ideal for dealers, repair shops, and end users, we ensure competitive pricing, fast global delivery, and responsive after-sales support. Trust SPARKLING MACHINERY — your professional partner in excavator spare parts.