Tongmyung Series

Right-circuit pressure low or PC200-8 boom speed falling behind arm speed? A worn PC200-8 right cylinder block and valve plate allows right-section bypass to grow, breaking the flow balance between front and rear pump sections. RITO supplies this matched right barrel-and-valve-plate set to restore PC200-8 right-pump displacement from the first operating hour.

718438 Swash Plate Assembly for Kawasaki K5V160, K3V180 and K5V200 piston pumps. This assembly is used in Doosan DX300, Volvo EC460B and Sany SY375/SY380 excavators. Precision-ground sliding face and accurate tilt angle restore rated piston stroke and pump displacement. Cross-references apply across K5V160 / K3V180 / K5V200 variants using the same 718438 swash plate geometry. Product Specifications Part Number 718438 Part Name Swash Plate Assembly Compatible Brand TONG MYUNG (Kawasaki K5V160 / K3V180 / K5V200) Applicable Models DX300, EC460B, SY375, SY380 Excavator Application Sets piston stroke angle in K5V160 / K3V180 / K5V200 variable piston pump Material High-strength alloy steel, precision-ground sliding face Product Color Silver machined finish Working Temperature -25°C~+60°C Key Function Controls pump displacement by setting the angle of every piston stroke Condition 100% New Aftermarket OEM Quality Packaging Wooden Case Reinforced Carton Neutral Packing Customized Box Key Features & Advantages Multi-Pump Cross-Compatibility 718438 geometry covers K5V160, K3V180 and K5V200 variants, letting one stock item serve DX300, EC460B and SY375/380 fleets. Precision-Ground Sliding Face Swash plate face ground to Ra 0.4 and flatness within 3 micrometres, minimising piston shoe drag and restoring rated pump efficiency. OEM Tilt-Angle Accuracy Plate angle machined to OEM specification for K5V-series pumps so pistons achieve full rated stroke at maximum displacement without bottoming. Matched Piston Shoe Interface Surface hardness and finish selected to pair with OEM-spec bronze piston shoes, preventing edge contact and early slipper wear. FAQ Q: What symptoms indicate the 718438 swash plate is worn?A: Pump flow falls below rated output on a flow meter test, piston shoes show uneven or edge wear patterns, pump case-drain flow is above OEM limit, and hydraulic oil temperature rises faster than normal during operation.   Q: Should I replace piston shoes when fitting a new 718438 swash plate?A: Yes. Piston shoe sliding faces wear in a matched pattern with the swash plate. Fitting a new flat swash plate against worn shoes causes concentrated edge contact that rapidly re-scores the new surface.   Q: Does 718438 fit K5V200 as well as K5V160?A: Yes. The 718438 swash plate covers K5V160, K3V180 and K5V200 variants. Always verify the pump model plate and confirm K5V series compatibility before ordering.   Q: How to confirm 718438 is the correct swash plate for my pump?A: Match the existing swash plate part number 718438, pump model (K5V160/K3V180/K5V200) and machine model. Provide pump serial number to our team for confirmation.   Q: What quality options are available?A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.   Q:Why Choose RITO?A:Listed FactoryStable&Reliable QualityOEM Factory for Chinese Top Excavator BrandsSupplier to Fortune 500 Companies  

Front-circuit pressure hunting or front pump case drain overheating on your PC300-7? A worn 321702 front barrel and valve plate causes progressive efficiency loss in the drive-side HPV140 section. RITO pairs barrel and valve plate to OEM lapping tolerance so front-circuit pressure recovers immediately after fitting.

Rear pump pressure low or rear-circuit actuators sluggish on your PC300-7 or PC350-7? A worn 321701 rear barrel and valve plate is the root cause of HPV140 rear-section efficiency loss. RITO matches this barrel-and-plate pair to OEM lapping standards so rear-pump output recovers from day one.

Front-circuit pressure weak or hunting on your ZAX470 or E330D? A worn 340812 front cylinder block and valve plate is leaking internally, robbing the boom and travel circuits of flow. RITO supplies this matched front barrel-and-plate pair precisely lapped to K5V200 OEM tolerances.

Rear-pump pressure collapsing on your ZAX400 or SK400? A worn 340811 rear cylinder block and valve plate set allows internal bypass to grow until the rear circuit can no longer lift or crowd at rated force. RITO supplies this matched barrel-and-valve-plate pair to fully restore rear-pump displacement.

System pressure unstable or dropping on your PC300-7 or PC450? A worn 642401 cylinder block allows pistons to bypass, bleeding pressure before it reaches the work circuits. RITO machines this barrel to tight clearance specs so your pump builds and holds rated pressure from the first hour.

Rear circuit losing pressure while front pump reads normal on your K3V112DP machine? The 716777 rear cylinder block wears independently and is often overlooked. RITO supplies this precision rear barrel with tight bore clearance to recover rear-pump output and balance dual-pump flow.

Seeing reduced hydraulic pressure or pump noise on your PC300-7? A worn 716776 front cylinder block is usually the root cause. RITO supplies this precision cylinder block for K3V112DP pumps, restoring stable oil flow and full machine performance at a fraction of OEM cost.

Facing hydraulic pump wear, unstable flow control, or reduced efficiency in PC200-series fleets? Wholesalers, repair workshops, and mining operators need precise internal pump components to avoid downtime and costly failures. RITO Hydraulic Pump Ball Guide 321310 HPV95 restores accurate ball positioning and stable hydraulic pressure regulation for Komatsu PC200-6 / PC200-7 / PC200-8 systems.

Facing hydraulic motor instability, abnormal wear, or reduced efficiency in PC200-8 fleets? Wholesalers, repair centers, and mining operators need reliable internal support components for fast maintenance turnaround and reduced downtime. RITO SUPPORT(F) 326212 PC200-8 HPV95 ensures stable structural alignment and consistent hydraulic motor performance for excavator driving systems.

Facing hydraulic motor inefficiency, weak swing output, or unstable pressure in PC200-6 fleets? Wholesalers, repair workshops, and mining operators need reliable internal swash components for fast recovery and reduced downtime. RITO 321305A Swash Plate PC200-6 HPV95 restores precise angle control and stable hydraulic energy conversion for excavator motor systems.