Need a Custom Solution?

We offer Customized Development and production for various spare parts, including engine pressure switches, sensors, and electronic components. If you require a specific version of the Pressure Switch 334790 or any other hard-to-find part for your Cummins QSK engine, Growshine International can help you develop and source it!

Growshine Engine Pressure Switch for Cummins QSK Series

Growshine International is proud to offer the essential engine component: the Pressure Switch 334790, also known as 334790. This high-quality pressure switch is specifically designed for use in Cummins QSK23 and Cummins QSK45 heavy-duty diesel engines. As a critical part of the engine management system, the Pressure Switch 334790 ensures accurate monitoring of fluid or oil pressure, protecting your valuable Cummins equipment. Our product meets stringent quality standards, providing reliable performance for your QSK23 and QSK45 machinery. We are specialists in the import and export trade of Engineering Machinery Accessories and Heavy Truck Components.

Growshine International: Your Global Spare Parts Partner

As Growshine International, we specialize in the import and export of a wide range of spare parts, covering Engineering Machinery Parts, Heavy Truck Parts, Agricultural Machinery Parts, and Automotive Spare Parts. Our inventory includes crucial components like the Cummins QSK Pressure Switch 334790. We are committed to supplying reliable engine accessories, hydraulic system repair kits, transmission spare parts, and more.            Our 20 essential long-tail keywords for search engine optimization include: Cummins QSK23 engine sensor replacement, buy heavy duty pressure switch 334790 online, QSK45 diesel engine electrical parts supplier, genuine quality engineering machinery accessories export, affordable heavy truck brake system components, agricultural tractor engine overhaul kits import, reliable automotive sensor components trade, construction equipment engine monitoring switches, Cummins QSK sensor component pricing, global sourcing for industrial engine parts, OEM quality QSK23 parts distributor, engine oil pressure switch 334790 for sale, China export heavy machinery electrical parts, hydraulic pump parts for excavators, truck cabin accessories worldwide shipping, farm machinery filtration system components, automotive chassis parts wholesale supplier, best price QSK45 engine spare parts, import export services for engine consumables, international trade heavy equipment components.

Key Component Terminology and Special Promotions

Understanding the parts is essential for maintenance:

• Fuel Injector: Delivers atomized fuel into the engine combustion chamber. Location: Engine cylinder head. Example: Caterpillar 320D Fuel Injector. (Caterpillar 320D 燃油喷射器; Caterpillar 320D Топливная форсунка)

• Hydraulic Pump: Converts mechanical power into hydraulic energy (flow and pressure). Location: Attached to the engine or transmission. Example: Komatsu PC300-8 Hydraulic Pump. (Komatsu PC300-8 液压泵; Komatsu PC300-8 Гидравлический насос)

• Turbocharger: Increases engine power by forcing extra air into the combustion chamber. Location: Exhaust manifold and intake system. Example: Volvo FH16 Turbocharger. (Volvo FH16 涡轮增压器; Volvo FH16 Турбокомпрессор) Click here to view our Garrett Turbocharger list!

• Starter Motor: Electric motor used to rotate the engine for starting. Location: Attached to the engine flywheel housing. Example: John Deere 8345R Starter Motor. (John Deere 8345R 启动马达; John Deere 8345R Стартер)

• Water Pump: Circulates coolant to regulate engine temperature. Location: Engine block or front cover. Example: Mercedes-Benz Actros Water Pump. (Mercedes-Benz Actros 水泵; Mercedes-Benz Actros Водяной насос)

• Alternator: Generates electrical power for the vehicle's electrical system and to recharge the battery. Location: Engine side, driven by a belt. Example: Hyundai Sonata Alternator. (Hyundai Sonata 发电机; Hyundai Sonata Генератор)

• Seal Kit: A collection of seals (O-rings, gaskets, etc.) for preventing fluid leakage in components. Location: Used in hydraulic cylinders, pumps, etc. Example: Doosan DX225LCA Seal Kit. (Doosan DX225LCA 密封套件; Doosan DX225LCA Комплект уплотнений)

• Brake Pad: Friction material used to slow or stop wheel rotation. Location: Brake caliper assembly. Example: Kenworth T800 Brake Pad. (Kenworth T800 刹车片; Kenworth T800 Тормозная колодка)

• Tie Rod End: Part of the steering linkage connecting the steering rack to the steering knuckle. Location: Steering system. Example: Ford F-150 Tie Rod End. (Ford F-150 拉杆端头; Ford F-150 Наконечник рулевой тяги)

• Pressure Relief Valve: Limits the maximum pressure in a hydraulic system by diverting excess flow. Location: Hydraulic pump or main control valve. Example: Kalmar DRF450 Pressure Relief Valve. (Kalmar DRF450 泄压阀; Kalmar DRF450 Предохранительный клапан) See our KALMAR product list here!

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Comprehensive Component Solutions and Growshine Services

Beyond the Pressure Switch 334790 for Cummins QSK engines, our extensive business portfolio includes a strong focus on Hydraulic Parts for all types of heavy equipment. Click here to explore our full range of Hydraulic Products!

Need to replace your Hydraulic Pump or associated components? We stock a variety of units and internal parts. View Hydraulic Pump related products here!

Growshine International (格莳国际) is dedicated to facilitating the global trade of high-demand spare parts. Our business encompasses sourcing, quality inspection, logistics, and supply chain management for our clients in the Engineering Machinery, Heavy Truck, Agricultural, and Automotive sectors. We ensure you get the right part, like the 334790 pressure switch, when you need it.

For the full range of Caterpillar components, including engine and chassis parts, Click to see our Caterpillar Product list!

Heavy Equipment Troubleshooting: Engine Oil Pressure Low Warning

Equipment & Model: Caterpillar D8T Track-Type Tractor

Symptom: The engine monitoring system displays a "Low Oil Pressure" warning, often accompanied by a de-rate or shutdown on the Caterpillar D8T. This can sometimes be caused by a faulty pressure sensor or switch, such as the equivalent to a 334790 type, but more serious causes must be investigated.

Treatment/Solution:

1. Immediately check the engine oil level. Top up if low.

2. If the oil level is correct, inspect the Oil Pressure Switch (like 334790) and sensor wiring for damage or loose connections. Replace the switch if testing confirms it is faulty (e.g., signaling low pressure when mechanical gauge reads normal).

3. If the warning persists and the mechanical gauge also indicates low pressure, this suggests a critical internal engine fault, such as a worn oil pump, damaged engine bearings, or blocked oil passages. Engine shutdown is necessary to prevent catastrophic failure, and a full mechanical inspection is required.

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