PUMP GP-PISTON & GEAR 2886857 - Caterpillar

2886857 PUMP GP-PISTON & GEAR Caterpillar parts 305

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Alternative (cross code) number:
CA2886857
288-6857
2886857

Caterpillar 2886857 PUMP GP-PISTON & GEAR

Weight: 47 pounds 21 kg.

Buy PUMP GP-PISTON & GEAR 2886857 Caterpillar genuine, new aftermarket tractor parts with delivery
MINI HYD EXCAVATOR,

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Construction Machinery Parts Engine 305 305cr Hydraulic Pump PVD-2B-50P 288-6857 2886857 Hydraulic Main Pump

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15 Oct 2025

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Construction Machinery Parts Engine 305 305cr Hydraulic Pump PVD-2B-50P 288-6857 2886857 Hydraulic Main Pump
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2081112 2886857 CA2886857 208-1112 288-6857 Hydraulic Pump Compatible with Caterpillar for CAT Mini Hydraulic Excavator DGT00001-UP 305CR Engine K4N

$2,150.00

15 Oct 2025

CN: dongkeguang

2081112 2886857 CA2886857 208-1112 288-6857 Hydraulic Pump Compatible with Caterpillar for CAT Mini Hydraulic Excavator DGT00001-UP 305CR Engine K4N
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Hydraulic Pump 208-1112 288-6857 CA2886857 Compatible with Caterpillar CAT Mini Hydraulic Excavator DGT00001-UP 305CR Engine K4N 2081112

$2,277.00

20 Aug 2025

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GevLtty Part Name: Hydraulic Pump || Part number: CA2886857 208-1112 288-6857 2081112 2886857 || Compatible with Caterpillar CAT Mini Hydraulic Excavator DGT00001-UP 305CR Engine K4N

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2020-09-28

2020-06-04

2019-08-01

2017-07-02

2016-08-01

Number on catalog scheme: 1

Caterpillar 2886857 Parts scheme PUMP GP-PISTON & GEAR

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Compatible equipment models: 2886857:

MINI HYD EXCAVATOR 305 Caterpillar

Information:

Personal injury can result from hydraulic oil under pressure.Hydraulic oil under pressure can cause injury to persons on or near the machine when the pressure is suddenly released.At operating temperature, the hydraulic oil tank is hot and under pressure. Hot oil can cause burns.Remove the fill plug only when the engine is stopped, and the fill plug is cool enough to touch with your bare hand.Do not allow hot oil or components to contact skin.
Personal injury can result from spring force released when removing cap screws.Internal spring force will be released when cylinder assembly cap screws are removed causing injury.Always restrain cover as cap screws are loosened.Follow the established procedure in the Service Manual to service these parts.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Dispose of all fluids according to local regulations and mandates.
Refer to the Systems Operation, Testing And Adjusting, "Machine Preparation for Troubleshooting".
Table 1
Required Tools
Tool Part Number Description Quantity
A 198-4240 Digital Pressure Indicator 1
Illustration 1 g00770168
Rear of Tractor (1) Drive for the hydraulic pumps (2) Test Port
Illustration 2 g00650668
Rear of Tractor (Left Side) (3) Main relief valve cover (4) Implement control valveThe main relief valve is a part on the main control valve for the scraper. The main relief valve is located near the oil line connection from the pump.Do the following procedures in order to check the pressure of the main relief valve.
Remove dust cap from fitting (2) and attach Tooling (A) .
Start the engine. Run the engine at high idle rpm. Look at the pressure gauge. Move the joystick to the bowl RAISE position. The high reading on the digital pressure indicator is the pressure setting of the main relief valve. The correct pressure setting is 14000 600 kPa (2030 87 psi) when the cylinder is at the end of stroke.
Illustration 3 g00650671
(3) Main relief valve cover (5) Spring (6) Stem (7) Shims
If it is necessary to change the setting of the main relief valve, stop the engine. After approximately five minutes, remove cover (3) from the main relief valve. Remove shims (7) in order to decrease the pressure setting of the main relief valve. Add shims (7) in order to increase the pressure setting of the main relief valve.
Table 2
Change to Relief Valve Pressure (Addition or Removal of One Shim)
Part Number of Shims Thickness Change
5J-2721
0.13 mm (0.005 inch)
160 kPa (23 psi)
5J-2722
1.22 mm (0.048 inch)
1500 kPa (218 psi)
Remove the test equipment.