Main pump flow falling on your 320D2 or 320E? A worn 318001 cylinder block lets K5V140 pump pistons bypass under load, robbing all circuits of the flow needed for productive digging. RITO supplies this precision barrel to restore K5V140 volumetric efficiency from the first operating hour.
Item NO.:
318001Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock318001 Piston Pump Cylinder Block for Kawasaki K5V140 piston pumps on Caterpillar 320D2, 320D2GC, 320E and 323D2 excavators. Cross-reference: 318002 (companion section). Precision-bored barrel with lapped valve-face surface restores the tight bore-to-piston clearance and sealing area that the K5V140 load-sensing system depends on for stable standby pressure.
| Part Number | 318001 |
|---|---|
| Part Name | Piston Pump Cylinder Block (K5V140) |
| Compatible Brand | TONG MYUNG (Kawasaki K5V140 Pump) |
| Applicable Models | 320D2, 320D2GC, 320D2L, 320E, 323D2 Excavator |
| Application | Rotating group barrel of Kawasaki K5V140 piston pump |
| Material | High-strength alloy steel |
| Product Color | Silver machined metal finish |
| Working Temperature | -25°C~+60°C |
| Key Function | Houses the piston bores that generate main hydraulic pressure in the K5V140 pump |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Bore-to-piston clearance machined to K5V140 OEM specification to maintain the volumetric efficiency that the 320D2 load-sensing system requires for stable standby pressure response.
Valve-plate mating surface lapped to Ra 0.2, maintaining the sealing clearance that keeps K5V140 case-drain flow within Caterpillar's OEM specification.
318001 covers 320D2, 320D2GC, 320D2L, 320E and 323D2, simplifying procurement for Cat 320-series fleets.
318001 can be replaced independently or together with companion barrel 318002 for complete rotating group restoration.
FAQ
Q: What symptoms indicate the 318001 cylinder block is worn on a 320D2?
A: LS standby pressure hunts or falls below specification, all actuators slow simultaneously at the same engine speed, pump case-drain flow exceeds OEM limit on a flow test, and hydraulic oil overheats faster than normal.
Q: Should I replace the valve plate with the 318001 barrel on my 320E?
A: Yes if the valve plate shows scoring or surface steps. A new barrel against a worn valve plate creates immediate sealing mismatch that scores the new barrel face within operating hours.
Q: Is 318001 the same part as 318002?
A: No. 318001 and 318002 are the two barrel sections of the K5V140 tandem pump. They differ in port timing and are not interchangeable. Confirm which section requires replacement before ordering.
Q: How to confirm 318001 fits my 320D2 K5V140 pump?
A: Verify pump model is K5V140 and existing barrel part number is 318001. Confirm machine is 320D2, 320D2GC, 320E or 323D2. Provide pump serial number for cross-reference.
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 Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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