High-Performance 3T-4704 Magnetic Switch for Caterpillar Machinery
Ensure the optimal operation of your Caterpillar equipment with our premium 3T-4704 Magnetic Switch. Sourced and supplied by Guangxi Huayang Engineering Machinery Equipment Co., Ltd., this durable and reliable switch is designed to meet the exact specifications of various Caterpillar models.

Unleash the Power: Product Advantages
Enhanced Durability: Built with high-quality materials to withstand harsh operating conditions.
Reliable Performance: Ensures consistent and precise switching for critical machine functions.
Direct Fit: Engineered as a direct replacement for the original Caterpillar 3T-4704 switch, guaranteeing easy installation.
Optimized Efficiency: Contributes to the overall efficient operation of your heavy machinery.
Essential Component: Product Uses
The 3T-4704 Magnetic Switch plays a vital role in controlling various electrical circuits within your Caterpillar equipment. It is commonly used in starting systems, auxiliary power circuits, and other applications requiring reliable remote switching. This ensures proper engagement and disengagement of critical components, contributing to the smooth and safe operation of your machinery.
Broad Compatibility: Applicable Caterpillar Models
This magnetic switch is designed to fit a wide range of Caterpillar machinery, including but not limited to:
Caterpillar Excavators: Including models like CAT 320, CAT 330, CAT 345, widely used in construction, mining, and demolition projects for digging, lifting, and material handling.
Caterpillar Bulldozers: Such as CAT D6, CAT D8, CAT D10, essential for earthmoving, grading, and site preparation in construction, infrastructure development, and mining operations.
Caterpillar Loaders: Including models like CAT 950, CAT 966, CAT 980, crucial for loading and transporting materials in construction sites, quarries, and material processing plants.
These heavy-duty machines operate in demanding environments, and the reliability of components like the 3T-4704 Magnetic Switch is paramount for uninterrupted operation and project completion.
Guangxi Huayang: Your Trusted Partner for Quality Parts
Guangxi Huayang Engineering Machinery Equipment Co., Ltd. is a leading supplier specializing in high-quality aftermarket parts for a variety of construction equipment, including Komatsu and Caterpillar. Our extensive inventory includes undercarriage parts (track rollers, carrier rollers, sprockets, idlers, track links), hydraulic system components (hydraulic pumps, hydraulic motors, control valves, hydraulic cylinders like bucket cylinders and boom cylinders), transmission and power components (gearboxes, gears, engine assemblies including Cummins engine parts), and various wear parts (bucket teeth, track shoes, pins and bushings, high-strength bolts). We are committed to providing our customers with reliable parts that ensure the longevity and performance of their machinery.
Frequently Asked Questions
Q: What are the common symptoms of a failing magnetic switch?
A: Common symptoms include intermittent starting issues, the machine not starting at all, or the auxiliary circuits not functioning correctly. You might also hear a clicking sound without the component engaging.
Q: How often should a magnetic switch be inspected?
A: It's recommended to inspect magnetic switches during regular machine maintenance intervals, typically every 250 to 500 hours of operation, or as specified in your machine's service manual.
Q: Can a faulty magnetic switch damage other components?
A: Yes, a malfunctioning magnetic switch can potentially cause damage to the starter motor or other connected electrical components due to improper current flow or continuous engagement/disengagement.
Troubleshooting, Maintenance & Tips
Troubleshooting:
Check the electrical connections for corrosion or looseness.
Test the switch with a multimeter to see if it's receiving power and sending it out when activated.
Inspect the switch for any physical damage.
Maintenance Suggestions:
Keep the switch clean and free from dirt and debris.
Ensure proper sealing to prevent moisture ingress.
Regularly inspect the wiring connected to the switch.
Maintenance Tips:
Refer to your machine's service manual for specific maintenance schedules and procedures.
Replace the magnetic switch with a genuine or high-quality aftermarket part like our 3T-4704 to ensure optimal performance.
Multilingual Parts Glossary
Komatsu PC200-8 Track Roller (EN), 小松PC200-8 支重轮 (ZH), Опорный каток Komatsu PC200-8 (RU) - Located in the undercarriage.
Caterpillar CAT 336D Hydraulic Pump (EN), 卡特彼勒CAT 336D 液压泵 (ZH), Гидравлический насос Caterpillar CAT 336D (RU) - Installed in the hydraulic system.
Komatsu WA380-6 Bucket Cylinder (EN), 小松WA380-6 铲斗油缸 (ZH), Ковшовый цилиндр Komatsu WA380-6 (RU) - Part of the loader's hydraulic system.
Caterpillar CAT D7G Sprocket (EN), 卡特彼勒CAT D7G 驱动轮 (ZH), Ведущая звездочка Caterpillar CAT D7G (RU) - Located in the bulldozer's undercarriage.
Komatsu PC300-7 Main Control Valve (EN), 小松PC300-7 主控制阀 (ZH), Главный распределительный клапан Komatsu PC300-7 (RU) - Part of the excavator's hydraulic system.
Caterpillar CAT 972G Tire (EN), 卡特彼勒CAT 972G 轮胎 (ZH), Шина Caterpillar CAT 972G (RU) - Part of the loader's wheels.
Komatsu GD655-5 Blade Cylinder (EN), 小松GD655-5 刀片油缸 (ZH), Цилиндр отвала Komatsu GD655-5 (RU) - Part of the grader's hydraulic system.
Caterpillar CAT 740B Transmission (EN), 卡特彼勒CAT 740B 变速箱 (ZH), Трансмиссия Caterpillar CAT 740B (RU) - Located in the articulated truck's powertrain.
Komatsu SAA6D107E-1 Engine Oil Filter (EN), 小松SAA6D107E-1 发动机机油滤清器 (ZH), Масляный фильтр двигателя Komatsu SAA6D107E-1 (RU) - Part of the engine system.
Caterpillar CAT 323F Track Shoe (EN), 卡特彼勒CAT 323F 履带板 (ZH), Гусеничная пластина Caterpillar CAT 323F (RU) - Part of the excavator's undercarriage.