251-1803 VALEV PLATE | REPLACEMENT FOR CATERPILLAR

2511803 251-1803

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

Material:

Carbon Steel

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.

Material Handlers

MH3022 MH3024

Wheeled Excavators

M320 M323 M318 M319 M316 M317

Compact Wheel Loaders

906H2 908H2 906H 907H 907H2 908H

Industrial Engines

C4.4

Excavators

MH3022 MH3024

Single Drum Vibratory Rollers

CS20 CS76B CS16 CS17 CS19 CS74B CS78B CP74B CP16 CP17

Track-Type Tractors

D6K2 XL D6K2 D3G D3K2 LGP D4 D6K2 LGP D4K LGP D4K2 LGP D4G D6K XL D3K XL D3K2 XL D5G D4K XL D4K2 XL D6K D3K LGP D6K LGP

Vibratory Compactors

CP-64 CP-663E CS-56 CS78B CS-76B CS74B CD-54 CB-634C CB-634D CP-56 CP-573E CP-533D CS-573D CS-573E CS-533D CP74B CB-64 CB-534C CP-74B CB-534D CS-663E CS-683E CS-76 CS-74 CS-74B CB-54 CS-78B CB-434D CP-563E CP-76 CS-583E CP-563D CS-531D CS-563D CS-563E CS-583D CP76B CP-74 CS-64 CB-564D CS79B CS-79B

Asphalt Paver

AP355 AP355F

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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1177250 117-7250

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177-6915

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.