PUMP GP-PISTON & GEAR 2886857 - Caterpillar

2886857 PUMP GP-PISTON & GEAR Caterpillar parts 305

Price: query
Add in request price Go to cart

Rating:

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,

Compare Prices: .

As an associate, we earn commssions on qualifying purchases through the links below

Hydraulic Pump 288-6857 2886857 Compatible with CAT 305 305CR 305SR 305.5CR Excavator

$2,500.00

30 Oct 2025

CN: dongyushuang

Hydraulic Pump 288-6857 2886857 Compatible with CAT 305 305CR 305SR 305.5CR Excavator
Teaviatorial ????Part Name:Hydraulic Pump || ????Part Number:288-6857 2886857 || ????Application:for CAT 305 305CR 305SR 305.5CR Excavator || ????Tip: If you need any other parts, please contact us - we are a professional sales team and have many products to offer to you. Many buyers are very satisfied with our service. You can get first-class products and high-quality services from us, believe me, you will have a pleasant shopping experience here. || ????Attention: If you are unsure if the product is suitable for your machine model. In order not to delay your use of the parts, please provide your engine nameplate or serial number and part number, and we will help you confirm if it is suitable. To avoid unnecessary returns, please carefully check the product image and part number to ensure that it is the product you want. Thank you for your support and understanding!

Hydraulic Pump 288-6857 2886857 Fikowjs Compatible for CAT 305 305CR 305SR 305.5CR Excavator

$2,065.00

30 Oct 2025

CN: Fikowjs-Machine

Hydraulic Pump 288-6857 2886857 Fikowjs Compatible for CAT 305 305CR 305SR 305.5CR Excavator
Fikowjs TIP: Please purchase according to the old part number, appearance is not able to judge the accuracy of the product. || Product Name:Hydraulic Pump || Product Number:288-6857 2886857 || Application: Compatible for CAT 305 305CR 305SR 305.5CR Excavator || NOTE: There are many kinds of products in Fikowjs parts, if you can't find the part number you need, please consult us, we will reply soon!

$2,010.00

30 Oct 2025

CN: cang nan xian a

Hydraulic Pump 288-6857 2886857 Compatible with CAT 305 305CR 305SR 305.5CR Excavator
rsityhalf ????Part Name:Hydraulic Pump || ????Part Number:288-6857 2886857 || ????Application:for CAT 305 305CR 305SR 305.5CR Excavator || ????Tip: If you need any other parts, please contact us - we are a professional sales team and have many products to offer to you. Many buyers are very satisfied with our service. You can get first-class products and high-quality services from us, believe me, you will have a pleasant shopping experience here. || ????Attention: If you are unsure if the product is suitable for your machine model. In order not to delay your use of the parts, please provide your engine nameplate or serial number and part number, and we will help you confirm if it is suitable. To avoid unnecessary returns, please carefully check the product image and part number to ensure that it is the product you want. Thank you for your support and understanding!

This part in 5 request: Show. This information for suppliers only!

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

For full view, you need register

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.