The pilot pump is a smaller pump in a pilot pump function.
It is used as a supplemental pump in booster applications.
Its purpose is to take over in low consumption periods and thus contribute to lower the energy consumption of the booster as a whole.

A pilot pump takes over the operation from the main pumps in periods when the consumption is so small that the stop functions of the main pumps are activated.

Pilot pump seal kits prevent oil leakage and maintain this function.

Part Number: 4206167
Group: Hydraulic Gear Pump Seal Kit
Fit for model: Hitachi EX200 EX200K EX220 EX270 EX300 EX300-2 EX300-3 EX300-3C EX300-5 EX300-5HHE EX300LC-5M EX300LCLL-5 EX300LCLL-5M EX310H-3C EX345USR(LC) EX350H-5 EX350H-5HHE EX350K-5 EX370-5M EX370HD-5 EX370LL-5M EX385USR EX400 EX550 EX550-5 JPN EX600H-3 JPN EX600H-5 JPN ZX110 ZX110-E ZX110M ZX120 ZX120-E ZX120-HCMC ZX125US ZX125US-E ZX130-AMS ZX130-HCME ZX130H ZX130W ZX130W-AMS ZX135US ZX135US-E ZX135USK ZX135UST ZX160W ZX160W-AMS ZX330 ZX330-HHE ZX350H ZX350K ZX350LC-AMS ZX350LC-HCME ZX360LC-HHE ZX370MTH ZX500W ZX600 ZX650H ZX800 ZX850H

Guangzhou Sonka Engineering Machinery Co., Ltd.

Loion: Guangzhou, China

Business scope:excavator spare parts

Fit for machine model brand: Komatsu, Hitachi, Kobelco, Kato, , Daewoo, Sumitomo, Hyundai, Volvo

Start

Sonka Company grew out of Global Engineering Machinery.

Time back in 2009, a spare parts shop named GLOBAL ENGINEERING MACHINERY established in Guangzhou City. Soon but stably, it sold its spare parts to more than 30 cities in domestic China in the same year, with the fame spreading far and wide, for the good product quality and service.

At that time the shop mainly sold mainly in seal and seal kits lines: excavator seal kits, loader seal kits, bulldozer seal kits, breaker seal kits and other construction machinery-related seals.

Growing

To meet customer’s growing needs on seal kits, in 2013, a new company named Guangzhou Huanqiu Seal Technology Co. LTD was set up to handling the seal factory. Factory manufactures all kinds of seals for construction machinery.

It then lay solid foundations for oncoming development.

HQPA stands for High Quality Product Assurance!

Expand

With rich experience and established technique, customers are satisfied with our seal kits for high quality and good performance.

And we would like to share these seal kits with the world outside China. In the year of 2014, we creates the Guangzhou Sonka Engineering Machinery Co. Ltd, a branch trading company, to deal with all the oversea business.

Prospect

In the year 2020, Sonka Company will upgrade our brand. We will set up Management Service Center in the oversea market to promote our uniform brand all over the world.