313-7770 PUMP GP-GEAR | REPLACEMENT FOR CATERPILLAR

3137770 313-7770

  • Application:for Caterpillar Buildozer CAT 777
  • Customization: labels and logo
  • Delivery: 7-15 working days
  • Certifications:ISO9001/ITS

Height (in):
5.22
Length (in):
6.56
Material:
Gray (Flake) Iron, Ductile (Spheroidal) Iron

The HYDSTAR® Hydraulic Gear Pump is a positive displacement pump that transfers and pressurizes hydraulic fluid through the rotation of two meshing gears. As the gears rotate, fluid is drawn into the pump inlet and carried around the outer circumference of the gears within the pump housing. The meshing gears then force the fluid toward the outlet, generating a consistent flow and hydraulic pressure. Designed with precision-machined gears and durable components, the pump provides reliable performance, smooth operation, and long service life in demanding hydraulic applications.

Attributes:

● Delivers consistent fluid flow and stable hydraulic performance
● Precision-machined gear profiles ensure accurate operation and reliable fluid displacement
● Durable construction provides excellent wear resistance and extended service life
● Suitable for a wide range of hydraulic applications and operating conditions

Applications:
The HYDSTAR® Hydraulic Gear Pump is widely used in hydraulic systems where reliable and consistent fluid flow is required. It provides efficient power transmission, stable hydraulic output, and dependable operation for construction machinery, agricultural equipment, industrial machinery, and other heavy-duty hydraulic applications. Depending on the pump design and configuration, it can handle a range of hydraulic fluids and operating conditions while maintaining consistent performance and efficiency.

Tractors

776D 776C 776B 784C

Petroleum Engines

3516 3512 3516C 3516B 3508C 3508B 3512E 3512C 3512B

Industrial Engines

3516B 3516C 3512 3516 3508B 3512E 3512B 3512C 3508

Wheel Dozers

854G

Suction Pumps

SPS343 SPF343C SPF343 SPT343

Petroleum Packages

TH48-E70 3508

Generator Sets

3516C GEN 3508C 3516 3508B 3512 3512C 3512B SR5 3508 3516B GEN 3516C 3516B

Vehicle Engines

3516 3512

Wheel Loaders

994 992G 994F 994D

Off-Highway Trucks

785D 785 3508B

Water Delivery System

CAT WDS

Hydraulic Shovels

6060

Dozers

11U 11SU

Petroleum Transmissions

TH48-E80

Power Modules

3516B 3516C XQC1200 PP3516 XQC1600 PM3508 PM3516 PM3512

Engines

3516C 3516E 3516PETROLEUM 3512E 3508PETROL 3512PETROL 3512B 3512C

Rippers

11

Engine - Machine

C4.4

Petroleum Generator Sets

3512B 3512C

Marine Auxiliary

3516C 3516B 3512C 3512B 3508B 3508C

Locomotive Engines

3512 3516C 3516B 3508C 3508B 3512E 3512C 3512B

Marine Engines

3512C 3516 3512E 3512 3508 3508C 3508B 3512B 3516B 3516C

Trucks

785 789 793 797 793D 793B 793C 789C 777C 777B 789B 777D 785G 777 785C 785D 797B 785B

Mining Excavators

5230B 5130 5230 5130B

Rotary Drills

MD6540C MD6380

Track-Type Tractors

D11N D11R

Generator Set Engines

3516B 3508 3512 3512B 3508B 3516

Industrial Engines

3512B 3561B 3516B LD700E

Rotary Cutters

RC20

Generators

SR4 SR5 SR4B SR4BHV

Product Introduction

ENGINEERED FOR LASTING PERFORMANCE

 

Precision-engineered HYDSTAR® hydraulic gear pumps built for demanding applications. Manufactured from high-strength materials and treated with advanced surface technologies, HYDSTAR® pumps deliver excellent wear resistance, dimensional stability, and long-term reliability.

Every critical component is manufactured and tested to maintain consistent performance under high-pressure, high-load operating conditions—helping reduce downtime, maintenance requirements, and total operating costs.

GEAR PUMP

DIRECT REPLACEMENT. DEPENDABLE PERFORMANCE.

HYDSTAR® hydraulic gear pumps are engineered as reliable replacement solutions for a wide range of Caterpillar equipment, including excavators, backhoe loaders, skid steer loaders, dozers, and track loaders.

Designed for demanding operating conditions, our pumps deliver stable hydraulic performance, precise fitment, and long service life—providing a dependable alternative for equipment repair and maintenance.

 

Related Products

Reliable accessory solutions suitable for a variety of engineering machinery and operating scenarios, ensuring stable equipment operation and effectively reducing maintenance and operating costs.
OIL PUMP

OIL PUMP

2231608 223-1608

OIL PUMP

OIL PUMP

1786539 178-6539

Request A Free Quote

Don't hesitate to contact us. HYDSTAR HYDRAULIC experts are very happy to help you, provide a variety of flexible and reliable solutions to help you solve various problems.