341-2856 RETAINER PLATE | REPLACEMENT FOR CATERPILLAR

3412856 341-2856

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:

Steel,Alloy Steel,Low Alloy Steel

Outside Diameter (in):

5.437

Inside Diameter (in):

Not specified

Thickness (in):

0.393

Hole Size (in):

1.074

HYDSTAR® hydraulic pumps and core components—including pump shafts, gears, bearings, oil seals, swash plates, 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.

Generator Sets

3512B

SPL Solutions Based on Hydraulic Excavators

330F OEM 320E

Forestry Log Loaders

558

Excavators

318E L 316F L 328D LCR 329D L 320D LN 324D 324E 320E LRR 315D L 325F LCR 320D2 323F LN 318D2 L 320C FM 326D L 324E L 323F 323D 318F L 320 318B N 320D L 330D2 323 318C 329E L 325C L 318B 323D SA 320D RR 322C 319D LN 323D L 330D2 L 323D LN 323D2 324E LN 329D 330F L 329E 326D2 L 321C 320E L 548 320D2 GC 329F L 320D2 FM 325D L 320C 320D 320E 320D GC 326D2 319D L 323E L 323D2 L 558 320D LRR 329E LN 315C 321D LCR 326F L 323E SA 320E LN 323F OEM 318D L 320F L 330F 316E L 323E LN 329D2 L 322C FM 320D FM 326F 320D2 L 329D2 323F L 538 330F LN 324D L 320 GC 325C 326F LN 325D 320E RR 325F

Wheel Loaders

972H 972K 966H 966K

Mobile Hydraulic Power Units

329D L 329E 330D2 330F 330FMHPU C7.1 323D L 323F OEM

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.

retainer 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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thrust plate

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129-7853

piston

piston

256-7484

actuator

actuator

173-3383

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.