138-8175 BALL GUIDE | REPLACEMENT FOR CATERPILLAR

1388175 138-8175

  • 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):
1.64
Material Description:
Steel
Height (in):
0.39
Material:
Carbon Steel

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.

Cold Planers

PM312 PM313 PM310

Mini Hydraulic Excavators

304CR 304SR 303CR 303 SR 303.5CR 302.7CR

Petroleum Engines

C15 C13 C18 C11 C9

Reclaimers/Stabilizers

RM400 RM500B

Industrial Engines

C32 C27 C18 C9 C9.3 C32B C11 C13 C15

Wheel Dozers

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

Site Leveling Dozers

586C 2864C

Asphalt Pavers

AP1055 AP500 AP655 PE636 AP-1000E AP-1000F AP400 BG1055E AP600 AP-1055F AP-1055E AP655F AP555 BG1000E AP455 AP655F L AP600F AP1000

Motor Graders

18M3 16 18 16GC 16M3

Skid Steer Loaders

272C 262C 262C2 256C 246C

Wheeled Excavators

MH3026 MH3024 M318F MH3040 M320F M322F

Telehandlers

TH360B TH330B TH560B TH220B TH355B TH350B TH580B TH340B TH460B

Underground Articulated Trucks

AD55B AD60 AD63

Extended Mining Products

LD350

Wheel Tractor-Scraper

627 623 621 627K LRC 632 623K LRC 623K 621K 627K 657 651

Compact Track Loader

289C 279C2 299C 289C2 279C

Forestry Products

OTHER

Forestry Products

568

Wheel Loader

982XE 972G 966 972H 972K 972M 972 972L 966 GC 972 XE 966 XE 966XE 980 982 950G II 980G II 980XE 988G 988H 966H 966G 966L 966K 966M 982 XE 980 XE 980K HLG 814K 924GZ 966K XE 924HZ 972M XE 938G II 966M XE 924H 924G 962G II 980C 980F 980H 980G 980L 980K 972XE 980M 994F 994H 982M

OEM Mobile Hydraulic Power Unit

336MHPU

Load-Haul-Dump (LHD)

R1700 R2900 XE R1700 XE

Hydraulic Shovel

6020B 6020 6015 6040 6030 6015B

Track Loader

973 973K

Engine

C32B C32B INDUSTRIAL C27 INDUSTRIAL

Engine - Machine

C27

Wheel Tractor-Scraper

651 623H 621K OEM 621H 627H

Multi Terrain Loader

277C 277C2 297C 287C2 287C

Vibratory Compactor

CS-56 CS11 GC CS-54 CS-44B CS54B CP-533D CP-533C CP-533E CS7 CS-54B CS-531D CS-531C CS-64B CS-533C CS-533D CS-533E CP-54B CP7 CS44B CP-563E CP-563D CP-563C CP-44B CP-54 CP-56 CP54B CP11 GC CS10 GC CS-563C CS-563D CS-563E CP12 GC CP44B

Locomotive Engine

C32 C27 C32B

Rotary Mixer

RM500B

Landfill Compactor

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

Mining Excavator

5110B

Paving Compactor

C13 MARINE MG630

Material Handler

MH3250 MH3260 MH3022 MH3024 MH3037 MH3032 MH3040 MH3049 MH3050 MH3059

Shovel

6040

Rotary Drill

MD6200 MD6380

Truck Engine

C9

Single Drum Vibratory Roller

825 CS12 GC CP44B 825H 825K 825C 815K 815 CP11 CP13 CS64B CS10 CS11 CS12 CS13 CS13 GC CP7 CS44B CS10 GC CP12 GC CS54B 825G II CP13 GC CS11 GC

Excavators

M318F MH3040 340MHPU 349 GC 336 MHPU M325C FM568 330D L 350 OEM 352 UHD 340 349 345 352 350 355 336 345 GC

Track-Type Tractors

D6T LGP D8 XE D6XE D3K2 XL D6T LGPPAT D6T XW D6T XL D5N D6T D1 D6 D8 D7 D8T D4K2 LGP D8R D8N D6T XL PAT D6T XW PAT D5K2 LGP D3K2 LGP D5K2 XL D11R D11T D4K2 XL

Soil Compactors

CCS7 CCS9

Road Reclaimers

RM400 RM500B RM500

Mobile Hydraulic Power Units

350MHPU

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.

ball guide

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.

 

Related Products

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138-8174

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.