8W8317 SPROCKET Caterpillar parts
12G, 12H, 12H NA, 130G, 140G, 140H, 140H NA, 160G
Rating:
Alternative (cross code) number:
CA8W8317
8W-8317
8W8317
CA8W8317
8W-8317
8W8317
Weight: 30 pounds 13 kg.
MOTOR GRADER,
Related part:
8W8317
SPROCKET-YM
2755287
CL
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8W8317ROCKET 2G3294 8D3743 for Caterpillar (CAT)
FIRST PRICE PARTS
FIRST PRICE PARTS
Compatible equipment models: 8W8317:
Information:
Introduction
Illustration 1 g02402177
Typical example
(1) Fuel strainer
(2) Electric transfer pump
(3) Primary fuel filter
(4) ECM that is fuel cooled.
(5) Secondary fuel filter
(6) Fuel Injection Pump
(7) Inlet pressure regulator
(8) Fuel manifold (rail)
(9) Pressure relief valve
(10) Electronic unit injector
(11) Fuel cooler (optional)
(A) Fuel tank Fuel is drawn from the fuel tank through a fuel strainer to an external electric transfer pump. The fuel then flows to the 10 micron primary fuel filter and a water separator.The fuel may flow to a fuel cooled ECM. The fuel then flows to a 4 micron secondary fuel filter.The fuel flows from the secondary fuel filter to a pressure regulator. A pressure regulator that is installed in the low-pressure fuel system controls the fuel pressure to the fuel injection pump. The pressure regulator regulates the fuel at a pressure of 150 kPa (22 psi) when the engine is at idle speed.From the pressure regulator, the fuel flows to the fuel injection pump. The fuel is pumped at an increased pressure of 200 MPa (29000 psi) to the fuel manifold (rail).Fuel that has too high a pressure from the fuel manifold (rail) returns through the pressure relief valve to the return line. Fuel that is leak off from the electronic unit injectors flows to the return line. The fuel may then flow through an optional fuel cooler on the way back to the fuel tank.High Pressure Fuel System
Illustration 2 g02216334
Typical example
(1) Fuel injection pump
(2) Fuel temperature sensor
(3) Suction control valve for the fuel injection pump
(4) Pressure relief valve
(5) Electronic unit injector
(6) Fuel manifold (rail)
(7) Fuel pressure sensor
(8) Fuel transfer pump The fuel injection pump (1) feeds fuel to the high-pressure fuel manifold (rail) (6). The fuel is at a pressure of 200 MPa (29000 psi). A pressure sensor (7) in the high-pressure fuel manifold (rail) (6) monitors the fuel pressure in the high-pressure fuel manifold (rail) (6). The ECM controls a suction control valve (3) in the fuel injection pump (1) in order to maintain the actual pressure in the high-pressure fuel manifold (6) at the desired level. The high-pressure fuel is continuously available at each injector. The ECM determines the correct time for activation of the correct electronic unit injector (5) which allows fuel to be injected into the cylinder. The leakoff fuel from each injector passes into a drilling which runs along the inside of the cylinder head. A pipe is connected to the rear of the cylinder head in order to return the leakoff fuel to the fuel tank.Components of the Fuel Injection System
The fuel injection system has the following mechanical components:
Primary filter/water separator
Electric transfer pump
Fuel transfer pump
Secondary fuel filter
Fuel injection pump
Fuel injectors
Fuel manifold
Pressure relief valve
Fuel pressure sensor
Fuel temperature sensorThe following list contains examples of both service and repairs when you must prime the system:
A fuel filter is changed.
A low-pressure fuel line is replaced.
The fuel injection pump is replaced.
The ECM is replaced.For the correct procedure to prime the fuel system, refer to Systems Operation, Testing and Adjusting, "Fuel System - Prime".Primary Filter/Water Separator
Illustration 3 g02214535
Typical example
The primary
Illustration 1 g02402177
Typical example
(1) Fuel strainer
(2) Electric transfer pump
(3) Primary fuel filter
(4) ECM that is fuel cooled.
(5) Secondary fuel filter
(6) Fuel Injection Pump
(7) Inlet pressure regulator
(8) Fuel manifold (rail)
(9) Pressure relief valve
(10) Electronic unit injector
(11) Fuel cooler (optional)
(A) Fuel tank Fuel is drawn from the fuel tank through a fuel strainer to an external electric transfer pump. The fuel then flows to the 10 micron primary fuel filter and a water separator.The fuel may flow to a fuel cooled ECM. The fuel then flows to a 4 micron secondary fuel filter.The fuel flows from the secondary fuel filter to a pressure regulator. A pressure regulator that is installed in the low-pressure fuel system controls the fuel pressure to the fuel injection pump. The pressure regulator regulates the fuel at a pressure of 150 kPa (22 psi) when the engine is at idle speed.From the pressure regulator, the fuel flows to the fuel injection pump. The fuel is pumped at an increased pressure of 200 MPa (29000 psi) to the fuel manifold (rail).Fuel that has too high a pressure from the fuel manifold (rail) returns through the pressure relief valve to the return line. Fuel that is leak off from the electronic unit injectors flows to the return line. The fuel may then flow through an optional fuel cooler on the way back to the fuel tank.High Pressure Fuel System
Illustration 2 g02216334
Typical example
(1) Fuel injection pump
(2) Fuel temperature sensor
(3) Suction control valve for the fuel injection pump
(4) Pressure relief valve
(5) Electronic unit injector
(6) Fuel manifold (rail)
(7) Fuel pressure sensor
(8) Fuel transfer pump The fuel injection pump (1) feeds fuel to the high-pressure fuel manifold (rail) (6). The fuel is at a pressure of 200 MPa (29000 psi). A pressure sensor (7) in the high-pressure fuel manifold (rail) (6) monitors the fuel pressure in the high-pressure fuel manifold (rail) (6). The ECM controls a suction control valve (3) in the fuel injection pump (1) in order to maintain the actual pressure in the high-pressure fuel manifold (6) at the desired level. The high-pressure fuel is continuously available at each injector. The ECM determines the correct time for activation of the correct electronic unit injector (5) which allows fuel to be injected into the cylinder. The leakoff fuel from each injector passes into a drilling which runs along the inside of the cylinder head. A pipe is connected to the rear of the cylinder head in order to return the leakoff fuel to the fuel tank.Components of the Fuel Injection System
The fuel injection system has the following mechanical components:
Primary filter/water separator
Electric transfer pump
Fuel transfer pump
Secondary fuel filter
Fuel injection pump
Fuel injectors
Fuel manifold
Pressure relief valve
Fuel pressure sensor
Fuel temperature sensorThe following list contains examples of both service and repairs when you must prime the system:
A fuel filter is changed.
A low-pressure fuel line is replaced.
The fuel injection pump is replaced.
The ECM is replaced.For the correct procedure to prime the fuel system, refer to Systems Operation, Testing and Adjusting, "Fuel System - Prime".Primary Filter/Water Separator
Illustration 3 g02214535
Typical example
The primary
Caterpillar parts catalog:
Parts sprocket Caterpillar catalog:
8W8319
SPROCKET
12G, 12H, 12H NA, 140G, 140H, 140H NA, 160G
12G, 12H, 12H NA, 140G, 140H, 140H NA, 160G
7D8354
SPROCKET
12G, 12H, 12H ES, 12H NA, 12K, 130G, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 160G
12G, 12H, 12H ES, 12H NA, 12K, 130G, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 160G
9D4207
SPROCKET
12G, 130G, 140G, 14G, 16G
12G, 130G, 140G, 14G, 16G
8D3743
SPROCKET
12G, 12H, 12H ES, 12H NA, 12K, 130G, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H
12G, 12H, 12H ES, 12H NA, 12K, 130G, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H
8D2803
SPROCKET
12F, 12G, 14E
12F, 12G, 14E
8W8289
SPROCKET
120G, 120H, 120H ES, 120H NA, 120K
120G, 120H, 120H ES, 120H NA, 120K
2G6377
SPROCKET
120G, 120H, 120H ES, 120H NA, 120K, 120K 2
120G, 120H, 120H ES, 120H NA, 120K, 120K 2
1528653
SPROCKET GP
OEMS
OEMS
9Q5693
SPROCKET GP
OEMS
OEMS
1C7093
SPROCKET
OEMS
OEMS
1060418
SPROCKET
330, 330 FM L, OEMS
330, 330 FM L, OEMS
8W8319
SPROCKET
12G, 12H, 12H NA, 140G, 140H, 140H NA, 160G
12G, 12H, 12H NA, 140G, 140H, 140H NA, 160G