Caterpillar air pressure regulator assembly 3301843 is a key component in Caterpillar equipment air systems, responsible for regulating and maintaining stable air pressure in pneumatic circuits. It ensures consistent pressure supply to critical components like brakes, clutches, and control valves—essential for the safe and efficient operation of machinery in construction, mining, and transportation applications. Ningbo Qiuning Trading Co., Ltd., a professional supplier, offers both genuine and aftermarket versions to meet diverse operational needs.
In terms of performance, the regulator assembly features a precision diaphragm and valve mechanism, capable of adjusting pressure within a range of 5-10 bar with an accuracy of ±0.2 bar. It responds quickly to pressure fluctuations (≤0.5 seconds) to maintain stability, preventing over-pressurization or pressure drops that could cause component failure. The assembly is constructed with durable materials (aluminum alloy housing, stainless steel internals) to resist corrosion and wear, ensuring reliable operation in harsh environments (-30°C to 80°C). Its integrated design includes filters and seals to protect internal parts from contaminants, extending service life.
For compatibility, 3301843 is specifically engineered for certain Caterpillar models, matching original mounting dimensions, port sizes, and electrical connections (where applicable). This ensures seamless installation into the pneumatic system, with no modifications needed, and guarantees proper integration with other air system components. It is critical for maintaining the equipment’s original pressure control specifications and operational safety.
Ningbo Qiuning Trading Co., Ltd. provides genuine regulator assemblies that adhere to Caterpillar’s strict quality standards, undergoing rigorous testing for pressure accuracy, durability, and leak resistance—ideal for applications where reliability is paramount. Aftermarket assemblies, produced by reputable manufacturers using advanced manufacturing techniques, replicate the genuine part’s performance and fit at a competitive price, offering a cost-effective solution for maintenance and replacements.
Our professional team assists with model verification to ensure the assembly fits your Caterpillar equipment. Whether for routine maintenance or system upgrades, we deliver quality components. For inquiries or orders, contact:
WeChat/WhatsApp：+8615888032469
CATERPILLAR excavators Excavator series: 312D, 313D, 315D, 318D, 320C, 320CL, 320D, 320DL, 323D, 323DL, 324D 326D, 325C, 325D, 329D, 329DL, 330D, 330C, 330CL, 330DL, 336D, 336DL, 345C, 345CL, 345D, 345DL, 349D, 349DL, 365C, 365CL, 374D, 374DL, 385C, 3 85CL, 390D, 390DL, 305.5, 306, 307, 307C, 307D, 308, 308C, 308D, 305.5E, 306E, 307E, 308E, 305.5E2, 306E2, 307E2, 308E2, 313D2, 318D2, 320D2 323D2, 326D2, 329D2, 330D2, 336D2, 349D2, 374F, 390F.
Caterpillar engine Series: 4M40, C4.2, C6.4, C6.6, C7, C-9, C13, C15, C18, C10, C11, C12, C16, C-16, C-15, C27, C32, C175; 3066, 3056, 3054, 3116, 3126, 3204, 3304, 3306, 3406, 3408, 3412, 3456, 3504, 3508, 3512, 3516, 3606, 3608, 3612, 3616.
Carter engine model C-9, C-10, C-11, C-12, C-13, C-15, C-16, C-18, C0.5, C0.7, C1.1, C1.5, C1.6, C2.2, C3.3, C3.4, C4.4, C6.4, C6.6, C7, C9, C11, C12 C13, C15, C18, C27, C32, C175, C280
Main models D315, D318, D326, D330, D330, D333, D334, D336, D339, D340, D342, D343, D346, D348, D349, D353, D364, D375, D379, D397, D398, D399 1140,1145 1150,1160,1670,1673,1674,1676,1693, 3003,3011,3013,3014,3024,3034,3044,3054,3056,3064,3066, 3114,3116,3126,3145,3150,3160 3176,3181,3196 3204,3208, 3304,3306 3406,3408,3412,3456 3508,3512,3516,3524.
Caterpillar self-propelled motor graders 14M, 16M, 24M, 160K, 140K
Caterpillar iron plates AS2302C, AS2252C, AP555E, AP1055E, AP300
Caterpillar milling machine PM200-2.0m,PM102-Track, PM200-2.2m,PM102-Wheel Caterpillar stabilized soil mixer
Caterpillar stabilized soil mixer RM500,RM300
Caterpillar Off-road and mining dump trucks 770G 772G 773G 785G 777G
Caterpillar mining trucks 785D, 789C, 793F, 795FAC, 797F
Caterpillar compilers CP44, CP54, 836H, 826H, CB24
