Wholesalers, agents and mine customers face unstable hydraulic power and frequent pump overhaul due to low-precision rear cylinder blocks, leading to high after-sales costs and site downtime. This 720774 rear cylinder block matches K3V112DT, K3V140 main pumps for mining and heavy construction equipment. Precision honed bores minimize piston abrasion, reduce maintenance frequency and all bulk orders come with full batch inspection documents.
Item NO.:
720774Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYSLong-hour heavy digging loads deform inferior rear cylinder blocks rapidly, causing fluctuating driving power and costly work stoppages for end operators, while distributors bear inventory losses from incompatible pump spare parts. Our heavy-duty 720774 rear cylinder block is a core hydraulic pump component holding piston assemblies for stable pressure output. OEM identical size with three quality tiers cuts stocking risks and supports fast mass shipment for global dealers and mining fleets.
| Parameter Item | Specification Data |
|---|---|
| Product Name | Hydraulic Pump Rear Cylinder Block |
| Part Number | 720774 |
| Compatible Equipment | K3V112DT, K3V140 Hydraulic Main Pump |
| Product Color | Matte dark metal grey |
| Working Ambient Temperature | -22℃ to +58℃ |
| Hydraulic Fluid Operating Temperature | -8℃ to +78℃ |
| Core Function | Install piston assemblies to form pressurized oil chambers and deliver steady hydraulic driving power for excavator digging and travel |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Consistent bore quantity, inner hole finish and external outline for K3V112DT/K3V140 pumps; no secondary grinding required during pump overhaul.
High-precision internal honing lowers friction between pistons and block, reducing internal oil leakage and extending the whole pump service lifespan.
Genuine OEM, aftermarket equivalent and remanufactured versions are stocked to meet various budget demands of wholesalers and mining enterprises.
Hardened alloy structure resists sustained high hydraulic pressure and thermal deformation to maintain stable performance under continuous heavy mining loads.
FAQ
Q:What key specifications for mounting 720774 rear cylinder block on K3V series pumps?
A:Fully clear metal chips inside pump housing before assembly; evenly lubricate each cylinder bore with special hydraulic oil; align spline position accurately to prevent stuck piston movement.
Q:What information to provide to confirm compatibility before bulk purchase?
A: Submit hydraulic pump model (K3V112DT/K3V140), original part number and excavator working scenario; we cross-check dimensional drawings to avoid mismatched spare parts and inventory losses.
Q:How does this rear cylinder block perform in cold open mines and high-temperature crushing sites?
A:Heat-treated alloy maintains stable precision within -22℃ ~ +58℃; anti-corrosion surface withstands mineral dust abrasion under nonstop heavy construction workloads.
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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