138-8173 VALEV PLATE | REPLACEMENT FOR CATERPILLAR

1388173 138-8173

Application: HYDRAULIC PUMP & MOTOR
MOQ: 1 PCS
Customization: Labels and logo
Delivery: 7-15 working days
Warranty: 6-12 months
Certifications: ISO 9001 / CE

Outer Diameter (in):
3.84
Material Description:
Steel
Thickness (in):
0.2
Material:
Carbon Steel, Alloy Brass

HYDSTAR® hydraulic pumps and core components—including pump shafts, gears, bearings, oil seals, swash plates,valve plate, cylinder blocks, retainer plates, ball guides, friction plates, thrust plates, bushings, and gaskets—are engineered to deliver superior power support for heavy-duty equipment and high-load applications. By maintaining efficient, stable fluid circulation and pressure output, they effectively minimize system wear and prevent mechanical damage caused by poor lubrication or pressure fluctuations.

Precision Manufacturing and Superior Materials: Components are precision-machined from high-strength premium carbon steel and wear-resistant stainless steel. This fundamentally enhances the rigidity and fatigue strength of core parts, ensuring reliable operation even under extreme working conditions.

Reliable Sealing and Extended Service Life: Featuring optimized, high-quality oil seal and gasket combinations alongside hardened bearing retaining rings, these components effectively prevent internal leakage and reduce operational friction, significantly extending the service life of the entire assembly.

Rigorous Testing and Reliable Quality: Every HYDSTAR® component is manufactured to exacting standards and undergoes rigorous performance and quality testing. This ensures a perfect fit for your equipment, guaranteeing efficient system operation and outstanding overall performance.

Whether for routine maintenance, major system overhauls, or component replacements, HYDSTAR® provides durable, trustworthy solutions for heavy-duty hydraulic and lubrication systems.

Cold Planer

PM312 PM313 PM310

Petroleum Engine

C15 C13 C18 C11 C9

Reclaimer/Mixer

RM500B

Industrial Engine

C18 C9 C11 C13 C15 C9.3

Wheel Dozer

834G 834H 824H 824K 814K 814 824G II 824

Wheel Tractor

621K OEM 651

Asphalt Paver

AP1055 AP-1055F AP655 AP655F AP-1000F AP655F L AP600 AP600F AP1000

Rotary Mixer

RM500B

Landfill Compactor

816K 826 826G II 836H 836G 816 826H 826K

Mining Excavator

5110B

Material Handler

MH3049 MH3059

Shovel

6040

Telehandler

TH330B TH560B TH220B TH360B TH355B TH350B TH580B TH340B TH460B

Rotary Drill

MD6200

Extended Mining Products

LD350

Wheel Tractor-Scraper

627K 627 623 621 657 651 623K 621K

Single Drum Vibratory Compactor

825 825H 825K 815K 815 825G II

Track-Type Tractor

D5N D11R D11T

Wheel Loader

980K HLG 972G 966 972K 972M 972 972L 966 GC 972 XE 814K 966 XE 924GZ 966XE 966K XE 924HZ 972M XE 980G II 966M XE 924H 988G 924G 988H 980H 980G 980K 972XE 980M 966G 966L 966K 966M 982M

Load-Haul-Dump (LHD) Loaders

R1700 XE R1700

Road Reclaimers

RM500B RM500

Hydraulic Shovels

6020B 6015B 6020 6015 6040 6030

Product Introduction

Precision Manufacturing

Our Piston Pump Spare Parts are manufactured with strict dimensional control and precision machining processes to ensure accurate fitment and reliable operation. Critical components are carefully processed to maintain proper tolerances, surface finish, and matching accuracy. Precise manufacturing helps reduce abnormal wear, internal leakage, and operating instability, supporting consistent hydraulic performance after repair or replacement.

Excellent Wear Resistance

Selected materials and optimized surface treatments help provide excellent resistance to friction, pressure, and continuous mechanical contact. Components such as pistons, cylinder blocks, valve plates, and swash plates are designed to withstand demanding hydraulic operating conditions. Improved wear resistance helps maintain stable clearances and contact surfaces, contributing to longer component life and more reliable pump operation.

valve plate

Accurate Component Matching

Proper matching between internal components is essential to piston pump efficiency and reliability. Our spare parts are designed to provide accurate contact and dimensional compatibility between pistons, slippers, cylinder blocks, valve plates, retainers, shafts, and other critical components. Correct component matching helps maintain stable pressure, smooth rotation, and efficient hydraulic power transmission.

Reliable Hydraulic Performance

High-quality replacement parts help restore the operating performance of worn or damaged piston pumps. Accurate sealing surfaces and controlled internal clearances help reduce unnecessary leakage and pressure loss while supporting stable oil flow and efficient operation. Proper replacement of critical components can improve pump response, reduce vibration, and help restore normal system performance.

 

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Request A Free Quote

Don't hesitate to contact us. HYDSTAR HYDRAULIC experts are very happy to help you, provide a variety of flexible and reliable solutions to help you solve various problems.