Hydraulic Pump B0600 21012 Kayaba PSVD2 21E for Yanmar B 6E VIO55 Excavator Original 861110cf e4eb 4a73 9258 beeb92f909af.jpg

B0600-21012 PSVD2-21E Hydraulic Pump Kayaba for Yanmar B-6E VIO55 Excavator

A hydraulic pump for Caterpillar CAT 305CR and K4N mini excavator engines, part number 208-1112. The pump feeds pressurized oil to the cylinders and motors so the machine can dig, lift and travel. It also cross-references CA2081112 and CA2886857, among 4 listed numbers.

Category: Hydraulic Pump Assembly

Description
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208-1112 Hydraulic Pump is a replacement hydraulic pump for Caterpillar CAT mini excavator engines, including 305CR, K4N. The main hydraulic pump converts engine power into pressurized oil flow. Supplied by LIONKITS as new, original cat.

208-1112 Hydraulic Pump Specifications

Product Type: Hydraulic Pump
Part Number: 208-1112, 2081112, 288-6857, 2886857, CA2081112, CA2886857
Compatible Brand: Caterpillar CAT
Machine Type: Mini Excavator Engine
Condition: New, original CAT
Country of Origin: China

Caterpillar CAT Models Compatible with the 208-1112 Hydraulic Pump

305CR Mini Hydraulic Excavator DSA00001-UP (MACHINE) POWERED BY K4N Engine
305CR Mini Hydraulic Excavator DGT00001-UP (MACHINE) POWERED BY K4N Engine

Your model is not listed? Contact LIONKITS via live chat or email with your machine model and nameplate photo, and we will confirm compatibility.

What Does a Hydraulic Pump Do?

The main hydraulic pump converts engine power into pressurized oil flow. That oil moves the boom, arm, bucket, swing and travel functions, so every machine movement depends on it. Because it takes the most punishment, it is usually the first major hydraulic component to wear out.

Signs the Part Needs Replacing

Slow or weak movement on all functions: when everything is slow at once, not just one circuit, the pump is the most likely source.
Whining, knocking or grinding noise: internal wear or cavitation, especially on start-up or when the oil is cold.
Hydraulic oil running hot: internal bypass leakage turns pressure into heat.
Metal particles in the filter or case drain: a failing pump sheds metal and pushes out more case drain flow.
Erratic or spongy movement, foamy oil: air entering the suction line, or aeration, upsets pump flow.

These symptoms overlap with clogged filters, low oil, air in the suction line and worn valves, so check the filters and oil level before replacing the part.

How to Order and Install the 208-1112 Hydraulic Pump

Confirm your machine model, the part number and the pump model on your existing pump before ordering.
Send a photo of the old pump or the nameplate if you are not sure; LIONKITS will confirm fitment for you.
Change the hydraulic oil and the return filters before fitting the new pump; a new pump installed in contaminated oil will fail early.
If the old pump failed internally and shed metal, flush the tank, hoses and oil cooler and inspect the control valve and motors for contamination.
Fill the pump case with clean hydraulic oil and prime the pump as the service manual specifies before the first start.
Check the suction line, strainer and fittings for air leaks, and tighten bolts to the specified torque.
Run the machine at low speed first, then check pressure, noise and leaks.

Frequently Asked Questions

What is the 208-1112 Hydraulic Pump?

The 208-1112 Hydraulic Pump is a replacement hydraulic pump for Caterpillar CAT mini excavator engines, supplied as new, original cat under part numbers 208-1112, 2081112, 288-6857, 2886857.

Which Caterpillar CAT models does the 208-1112 Hydraulic Pump fit?

It is listed for 305CR, K4N and other models in the compatibility list above. If you are unsure, send your machine nameplate to LIONKITS for confirmation.

How do I know my hydraulic pump is failing?

Typical signs are slow or weak movement on all functions, whining or knocking noise, hot hydraulic oil, metal particles in the filter or case drain and erratic or spongy movement.