K5V140 pump leaking from the front housing or front bearing making noise on your 345C or 345D? A worn or cracked 2923310-0441 front cover allows case-drain oil to escape and loses the bearing seat alignment that keeps the input shaft concentric. RITO supplies this precision front cover assembly to restore sealed, accurately-aligned K5V140 casing on your Cat 345-series excavator.
Item NO.:
2923310-0441Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock2923310-0441 Pump Front Cover Assembly for Kawasaki K5V140 piston pumps on Caterpillar 345C, 345CL, 345D and 345GC excavators. The front cover seals the pump inlet and case-drain circuit at the shaft end, while the precision-bored front bearing seat maintains input shaft alignment. Correct front cover geometry is essential for K5V140 regulator accuracy and shaft seal life.
| Part Number | 2923310-0441 |
|---|---|
| Part Name | Pump Front Cover Assembly (K5V140) |
| Compatible Brand | Kawasaki (for Caterpillar 345C/D/GC) |
| Applicable Models | 345C, 345CL, 345D, 345GC Excavator |
| Application | Front end cover and input shaft bearing seat of Kawasaki K5V140 main piston pump |
| Material | High-strength alloy steel casting |
| Product Color | Metallic grey |
| Working Temperature | -25°C~+60°C |
| Key Function | Seals K5V140 pump inlet and case-drain circuit; supports the front shaft bearing for input shaft alignment |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Front bearing bore machined to OEM H7 tolerance, maintaining input shaft concentricity that protects K5V140 shaft seal from eccentricity wear and controls rotating group alignment under load.
Inlet and case-drain O-ring grooves machined to OEM dimensions for correct seal squeeze, eliminating the external leakage that compromises Cat 345C/D engine compartment cleanliness.
Shaft seal bore finish and runout controlled to OEM specification, ensuring the lip seal maintains contact with the input shaft over the full K5V140 speed range without premature lip wear.
Front cover geometry confirmed for K5V140 pumps on 345C, 345CL, 345D and 345GC for direct assembly without modification.
FAQ
Q: What causes K5V140 front cover failure on Cat 345C?
A: Input shaft lip seal failure from shaft runout or contaminated oil, cracking from impact with external objects, and O-ring degradation from oil temperature above specification are the primary failure modes for the 2923310-0441 front cover.
Q: Should I replace the shaft seal at the same time as the 2923310-0441 front cover?
A: Yes. Always fit a new shaft lip seal whenever the front cover is removed or replaced. Reusing the old seal on a new cover risks immediate re-leakage from seal lip damage sustained during disassembly.
Q: How do I check if the 345C K5V140 front bearing seat is damaged before ordering 2923310-0441?
A: Measure the front bearing seat bore with an inside micrometer. If bore diameter exceeds the OEM service limit or shows fretting marks from a spinning outer race, the front cover must be replaced.
Q: How to confirm 2923310-0441 fits my 345C K5V140 pump?
A: Match the existing front cover part number 2923310-0441 and confirm pump model is K5V140 on a 345C, 345CL, 345D or 345GC. 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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