4133L056 Engine Coolant Thermostat Replacement Fits Perkins 1103 1104 1106 Series Diesel Engine

4133L056 Engine Coolant Thermostat Replacement Fits Perkins 1103 1104 1106 Series Diesel Engine 

Cross Reference Part Numbers

Compatible Perkins Engine Models

Wide Application Range

• Perkins stationary diesel generator sets
• New Holland, Case IH, Massey Ferguson agricultural tractors and harvesters
• JCB, CAT excavators, backhoe loaders, wheel loaders
• Industrial forklifts, air compressors and other engineering equipment
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Key Product Features

1. 1:1 OEM Size & Precise Opening Temperature: Strictly follows original dimensional standard for direct bolt-on installation without modification, accurate opening temperature ensures fast engine warm-up and stable temperature control.
2. High-Sensitivity Wax Thermal Element: Fast response to coolant temperature changes, effectively avoiding frequent temperature fluctuations and unstable engine operation.
3. High-Temperature Resistant Sealing Gasket: Integrated sealing structure prevents coolant leakage at the installation position, resisting aging and high-temperature erosion.
4. Excellent Pressure & Heat Resistance: Works stably under the high pressure and high temperature of engine cooling circuits, not easy to get stuck or fail.
5. Strict Factory Testing: Every thermostat undergoes temperature opening and closing cycle tests, sealing leakage tests to guarantee long-term reliable service.

Common Engine Failures Solved

• Engine long-term low operating temperature leading to incomplete fuel combustion, high fuel consumption and black smoke
• Slow warm-up after cold start, severe cylinder wear and shortened engine service life
• Stuck thermostat causing poor coolant circulation, engine overheating and cylinder head deformation
• Coolant leakage from aging sealing surface of old thermostat
• Unstable engine power caused by frequent coolant temperature fluctuation
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