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Caterpillar Series

Caterpillar (CAT) Hydraulic Parts

Hydraulic pump, final drive, swing motor, control valve, cylinder, repair kit, etc.

Brands: RITO, Genuine, Rebuild, OEM, Aftermarket.

Fits: CAT (300 series), Mitsubishi, Sany, XCMG, and other major excavator brands.

Service: One-stop sourcing, large stock, fast delivery. If you need your own brand we also could supply too.

A total of 20 pages

RITO Arm Cylinder 275-8012 275-8013 Industrial Grade 325D 325D L 329D 324D 325 Excavator Hydraulic Stick Cylinders

Sluggish crowd forces and buckling stick movement ruin cycle efficiency during deep trenching operations. When a stick actuator suffers from rod flexing or internal blow-by, digging depths become hard to maintain, wasting valuable fuel and operator energy. Stop dealing with weak pulling power on your 325D, 325D L, or 329D crawlers.

Hot Tags : 325D Boom Cylinder Arm Cylinder Hydraulic arm cylinder Excavator arm cylinder Stick cylinder Dipper cylinder
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RITO Boom Cylinder 187-8959 187-8960 216-4322 325CL 325C 325C L 322C 325D 329D Industrial Grade Excavator Hydraulic Cylinders

Structural arm sagging during high-tier truck loading compromises jobsite safety and slows down production metrics. When main boom lifters experience internal fluid bypass, your excavator loses its fundamental lifting capacity and precise positioning response. Protect your heavy 325CL, 325C, or 325C L excavators from sudden structural dropping.

Hot Tags : 325C Arm Cylinder Boom Cylinder Hydraulic boom cylinder Excavator boom cylinder Main arm cylinder
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RITO Final Drive 305.5E 305.5D 305E 306E 306 Excavator Travel Motor Reduction Gearbox Transmission Assy

Internal planetary gear binding inside your travel transmission locks up tracks, grinding site operations to an expensive halt. When compact crawler gearboxes wear down, machines lose tracking straightness and leak vital drive lubricants into the soil. Prevent total drivetrain failure on your 305.5E, 305.5D, or 305E utility earthmovers.

Hot Tags : E305.5E Travel Motor Final Drive Hydraulic travel motor E305.5E Travel Device Track motor assembly Travel gearbox
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RITO Final Drive 452-6208 4526208 102-6460 Heavy Duty 307 308B 308D 308E 307B E70B Excavator Travel Motor Reducer Assemblies

Worn planetary gears and cracked travel motor casings leave heavy crawlers completely immobilized in deep mud. When a final drive transmission fails under heavy load, extraction costs and machinery downtime can devastate a project's budget. Keep your 307, 308B, or 308D excavators from getting stuck on critical jobsites.

Hot Tags : 452-6208 CAT 308 final drive Track drive Travel reduction gearbox
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RITO 521-3213 5213213 Check Valve Gp 345GC 349 352 374 Excavator Hydraulic System Circuit Isolation Check Valve Assembly

Hydraulic systems lose efficiency quickly when reverse oil flow begins affecting pressure balance inside the circuit. The 521-3213 / 5213213 check valve assembly is designed for 345GC, 349, 352, and 374 excavators to isolate hydraulic flow direction and maintain circuit stability during high-load machine operation. Check valves are commonly used to control one-way hydraulic flow and prevent backflow inside pressure systems.

Hot Tags : 521-3213 Valve Solenoid Valve Pilot Solenoid Valve Check Valve Hydraulic Control Valve
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RITO 184-3834 1843834 Swing Motor Assy M2X170 322B 325B 330B Excavator Hydraulic Rotary Slewing Motor Unit Spare Parts

Inside the excavator swing circuit, the 184-3834 / 1843834 M2X170 swing motor assembly works as the driving source that powers upper structure rotation on 322B, 325B, and 330B machines. Its task is not only to generate turning force, but also to keep rotational movement smooth while the excavator is repeatedly digging, loading, and repositioning under pressure.

Hot Tags : 184-3834 Swing Motor Assy 330B 322B 325B M325B Swing Drive Motor Swing Reduction Gearbox Excavator Swing Gearbox Slewing Motor
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RITO Bucket Cylinder 176-2351 204-3617 Industrial Grade 325CL 325C 325C L 322C 325D Hydraulic Excavator Lifting Cylinders

Scored cylinder rods and torn polyurethane seals dump high-pressure oil, dropping loaded buckets unexpectedly during critical operations. When bucket actuators flex or leak, jobsites halt due to severe safety risks and structural failure. Do not jeopardize your 325CL, 325C, or 325C L earthmovers with structurally weak cylinders.

Hot Tags : 325CL Arm Cylinder Excavator Bucket Cylinder Hydraulic bucket cylinder 325CL Boom cylinder Bucket ram cylinder Excavator bucket ram
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RITO 179-9778 1799778 Hydraulic Fan Motor M325C 325C 322C 3126B 3126 Excavator Fan Motor for E324 E320 E327 E323

Seized fan motors lock up radiator blades, causing rapid hydraulic oil breakdown and severe engine knocking. When cooling circuits lose drive speed, critical control valves overheat and seals begin to warp across your fleet. Do not let a malfunctioning motor strand your M325C, 325C, or 322C heavy equipment.

Hot Tags : 179-9778 Ventilation Motor Hydraulic fan motor Excavator ventilation motor Cooling fan motor Radiator fan motor
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RITO 179-9775 1799775 Swing Motor Assy M5X180 325D 325DL 329D 329DL Excavator Hydraulic Rotary Slewing Motor Spare Parts

The 179-9775 / 1799775 swing motor assembly (M5X180 series) is engineered to drive the excavator slewing system by converting hydraulic pressure into regulated rotational torque. It is applied on 325D, 325DL, 329D, and 329DL machines, where consistent upper structure rotation is required for digging, loading, and positioning work.

Hot Tags : 179-9775 Hydraulic Swing Motor Swing Drive Motor Rotary Motor Excavator Swing Motor
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RITO 599-0905 504-9687 Hydraulic Transmission Oil Filter 336GC 345GC 349 352 Excavator Return Oil Filter Element Cartridge

Once hydraulic oil starts carrying metal particles and fine debris, the entire transmission loop begins to lose efficiency, leading to slower response and increased wear across critical components. The 599-0905 / 504-9687 filter cartridge is positioned in the return line of 336GC, 345GC, 349, and 352 excavators to intercept contamination before it re-enters the hydraulic tank.

Hot Tags : 599-0905/504-9687 Hydraulic Return Filter 320 323 326 330 333 336 Hydraulic Tank Filter Transmission Oil Filter Element Hydraulic Filter Element 340 345 349 350 395 Excavator Oil Filter
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RITO 333-3015 3333015 Swing Reduction Gearbox E315D 318D 318D2 316E 316F Excavator Slewing Drive Gear Box Assembly

The 333-3015 swing reduction gearbox is designed to manage rotational motion in excavator upper structure systems, converting hydraulic motor power into controlled slewing movement. It is widely applied on E315D, 318D, 318D2, 316E, and 316F machines, supporting stable swing operation in excavation, lifting, and site positioning tasks.

Hot Tags : 333-3015 E315D Swing Reduction Gearbox Swing Drive Gearbox Swing Gearbox Assembly Excavator Swing Drive Swing Reducer
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RITO 169-5549 1695549 Swing Reduction Gearbox 311C 311D 312C 312D Excavator Slewing Motor Reduction Gear Box Assembly

The 169-5549 swing reduction gearbox is developed for excavator slewing systems that require stable torque conversion and accurate upper structure rotation. Installed on 311C, 311D, 312C, and 312D, it supports smooth swing movement in demanding jobsite operations such as earthmoving, loading, and site preparation.

Hot Tags : 169-5549 312D Swing Drive Motor Planetary Swing Drive
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