Part Name: Pressure Switch
Part No: 344-7391
Applicable Models: CAT
Delivery Options : Express freight / Standard (sea) Freight
Condition/Options: New/ OEM replacement / Genuine original
Warranty : 6 months
MOQ : 1 Piece
High Quality Pressure Switch 344-7391 3447391 for Heavy Machinery and Truck Parts
Essential Pressure Switch 344-7391 (3447391) for Engine and Hydraulic Systems
Discover the reliable Pressure Switch 344-7391, also known as 3447391, a critical component in ensuring the safe and efficient operation of your heavy-duty equipment. At Growshine International, we specialize in providing high-quality engineering machinery accessories, heavy truck spare parts, agricultural equipment components, and automotive parts for the global market. This pressure switch is vital for monitoring pressure levels within hydraulic lines or engine lubrication systems, sending an electrical signal to the control unit when a predetermined pressure is reached. Invest in top-tier hydraulic pressure sensors for optimal performance and longevity.
We supply a wide range of parts, including engine filtration solutions, heavy-duty truck engine components, loader hydraulic cylinders, and excavator final drive seals. Our commitment is to deliver reliable construction equipment spares and durable farm machinery clutch kits for all major brands.
Detailed Product Information and Cross-Reference for 344-7391
The Pressure Switch 344-7391 (or 3447391) is a precision-engineered part essential for various applications. It serves as an engine safety sensor, crucial for preventing damage by alerting operators or systems to pressure anomalies. As a leading exporter of heavy-duty equipment parts, Growshine International ensures all our products, including this pressure monitoring switch, meet stringent quality standards. Whether you are looking for replacement excavator travel motors, affordable heavy truck suspension parts, or precision agricultural tractor filters, we are your trusted source. We focus on global parts import and export trade, offering competitive pricing on essential power train components and industrial vehicle accessories.
Applications and Key Features of the 344-7391 Pressure Switch
This Pressure Switch (344-7391, 3447391) is commonly found in the hydraulic and engine systems of construction equipment and heavy trucks. Its role is simple yet critical: to switch on or off an electric circuit based on reaching a set pressure point, thus protecting vital machinery components. Growshine International specializes in the import and export of engineering machine parts, heavy vehicle components, farm equipment spares, and general auto parts. Our extensive inventory includes hydraulic pump repair kits, differential gear assemblies, turbocharger service kits, and transmission solenoids. Trust us for your needs in engine electrical sensors and hydraulic system components.
Technical Specifications and Long-Term Durability
The 344-7391 Pressure Switch is built for harsh operating environments, featuring robust construction that resists vibration and temperature extremes. When servicing your equipment, choosing the correct replacement part like the 3447391 is essential. Growshine International is dedicated to supplying premium excavator spare parts, reliable heavy truck braking systems, efficient agricultural injector nozzles, and durable automotive suspension components. We are committed to being your long-term partner for OEM quality aftermarket parts and machinery overhaul kits. Explore our full range of power steering pumps and undercarriage components.
Key Accessory Definitions for Heavy Machinery and Heavy Trucks
Engine Oil Pump: Installed in the engine block (Caterpillar 320D, 卡特彼勒 320D 机油泵, Масляный насос Caterpillar 320D). Circulates oil for lubrication.
Hydraulic Control Valve: Located in the main control section (Komatsu PC200-8, 小松 PC200-8 液压控制阀, Гидравлический распределитель Komatsu PC200-8). Directs fluid flow.
Differential Gear: Part of the axle assembly (Volvo FH16, 沃尔沃 FH16 差速器, Дифференциал Volvo FH16). Allows wheels to rotate at different speeds.
Track Roller (Bottom Roller): Located on the undercarriage frame (John Deere 650J, 约翰迪尔 650J 支重轮, Опорный каток John Deere 650J). Supports the track weight.
Fan Motor: Attached to the engine cooling system (Caterpillar 345D, 卡特彼勒 345D 风扇马达, Вентиляторный мотор Caterpillar 345D). Drives the cooling fan.
Tie Rod End: Connects the steering rack to the wheel hub (Mercedes-Benz Actros, 梅赛德斯-奔驰 Actros 横拉杆接头, Наконечник рулевой тяги Mercedes-Benz Actros). Part of the steering linkage.
Fuel Injector Nozzle: Installed in the cylinder head (Cummins ISX, 康明斯 ISX 燃油喷射嘴, Форсунка Cummins ISX). Atomizes and delivers fuel.
Brake Caliper: Mounted over the brake rotor (Scania R730, 斯堪尼亚 R730 制动卡钳, Тормозной суппорт Scania R730). Squeezes pads against the rotor to slow the vehicle.
Turbocharger Cartridge (CHRA): Core of the turbocharger (Ford F-250, 福特 F-250 涡轮增压器芯, Картридж турбокомпрессора Ford F-250). Houses the rotating assemblies.
Hydraulic Cylinder Seal Kit: Used to reseal hydraulic rams (JCB 3CX Backhoe, JCB 3CX 挖掘装载机 液压油缸密封件, Комплект уплотнений гидроцилиндра JCB 3CX). Prevents fluid leaks.
Growshine International: Your Partner for Machinery Parts Trade
As Growshine International, we facilitate the import and export trade of engineering machinery spare parts, heavy truck components, agricultural equipment accessories, and automotive spares globally. We specialize in sourcing and supplying high-demand items like the Pressure Switch 344-7391 (3447391) and offer comprehensive support for engine cooling system parts, electric motor components, power transmission parts, hydraulic system seals, and precision electrical sensors. Our business aims to connect quality manufacturers with global distributors and end-users, ensuring timely delivery and competitive prices for construction equipment replacement parts and commercial vehicle spares.
Fault Diagnosis: Heavy Truck Engine Overheating
Equipment Example: Heavy Truck, Sinotruk Howo T7H.
Fault: The engine temperature gauge frequently rises into the red zone, especially under heavy load or during prolonged idling. Howo T7H Engine Overheating is a serious issue that must be addressed immediately.
Possible Causes and Solutions:
Coolant Level Low: Check the expansion tank. Top up if needed and check for leaks in radiator hoses or the radiator core.
Thermostat Malfunction: A stuck-closed thermostat (e.g., Sinotruk T7H thermostat) prevents coolant from circulating to the radiator. Replace the Sinotruk T7H thermostat if it fails the hot water test.
Faulty Fan Clutch/Fan Motor: For a mechanical fan, the fan clutch (e.g., Howo T7H fan clutch) may not be engaging fully. For electric fans, the motor might be failing. Check and replace the fan motor or fan clutch.
Clogged Radiator: External debris or internal scale can reduce heat dissipation. Flush the system or clean the radiator fins.
Head Gasket Failure: Exhaust gases may be entering the cooling system, causing pressure and overheating. This is a major repair requiring inspection and replacement of the cylinder head gasket.
Recommended Action: Start with the simplest checks (coolant, fan operation). If the issue persists, professional diagnosis of the Sinotruk Howo T7H cooling system is required. Timely replacement of components like the 344-7391 Pressure Switch can help monitor critical system health.
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