20R-4562 FUEL INJECTOR PUMP for CAT C4.4 C7.1 Engine | Pump GP-Fuel Injector

Genuine 20R-4562 Fuel Injector Pump for CAT C4.4 and C7.1 Engines

Precise fuel delivery is the foundation of diesel engine performance, efficiency, and emissions compliance. The 20R-4562 FUEL INJECTOR PUMP for CAT C4.4 C7.1 ENGINE is the genuine OEM high-pressure fuel injection pump designed to restore optimal fuel delivery to your Caterpillar® C4.4 and C7.1 diesel engines. Also referenced as part number 20R4562 and pump GP-fuel injector, this critical component precisely meters and pressurizes fuel for delivery to the injectors, ensuring complete combustion, maximum power output, and reliable operation across all load conditions .

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Precision Engineered for CAT C4.4 & C7.1 Engine Families

This CAT fuel injector pump is engineered as a direct replacement for the C4.4 and C7.1 engine platforms, two of Caterpillar’s most widely used mid-range diesel powerplants. These engines power an extensive range of equipment across multiple industries:

For CAT C4.4 Engine Applications (4.4L, 4-Cylinder):

For Compact Construction Equipment:

• Backhoe Loaders: 415F, 416F, 420F, 422F, 428F, 430F, 432F, 434F, 444F

• Compact Wheel Loaders: 906M, 907M, 908M

• Mini Excavators: 305.5E, 306E, 307E, 308E

• Skid Steer Loaders: 246C, 256C, 262C, 272C

• Compact Track Loaders: 247C, 257C, 267C, 277C, 287C, 297C

For Agricultural & Industrial:

• Agricultural Tractors: Challenger and Caterpillar ag equipment

• Industrial Power Units: Generator sets, pumps, compressors

• Material Handling: Forklifts and reach stackers

For CAT C7.1 Engine Applications (7.0L, 6-Cylinder):

For Excavators:

• 320 Series: 320D, 320D2, 320D2 L, 320GC, 320 Next Gen

• 323 Series: 323D, 323D L, 323D2 L, 323

• 326 Series: 326D, 326D L, 326, 326GC

• 330 Series: 330D, 330D2, 330GC, 330 Next Gen

• 336 Series: 336D, 336D2, 336GC, 336 Next Gen

• 313D2, 314D, 315D, 318D models

For Wheel Loaders:

• Medium Wheel Loaders: 938M, 950M, 962M

• Compact Wheel Loaders: 924K, 930K

• 928HZ, 924HZ models

For Motor Graders:

• M Series Graders: 140M, 140M2, 160M, 160M2

• 120M, 12M select models

For Additional Equipment:

• Compactors: CS11, CS54B, CS64B, CS68B, CP54B, CP56B, CS56B, CS78B, CS79B, CS12

• Asphalt Pavers: AP-600D, AP655F, AP655F L

• Telehandlers: TH series material handlers

• Agricultural Equipment: Large tractors, combines, harvesters

Engine Specifications:

• Engine Models: CAT C4.4 (4-Cylinder, 4.4L) and C7.1 (6-Cylinder, 7.0L)

• Fuel System: High-pressure common rail (HPCR)

• Injection Type: Electronic unit injection with precise ECM control

• Injection Pressure: Up to 1,800 bar (26,000 psi) depending on configuration

Critical Note: Fuel injection pump configurations vary by engine serial number prefix, emissions tier (Tier 3, Tier 4 Interim, Tier 4 Final, Stage III, Stage V), and application. Always verify your engine’s exact model, serial number, and existing pump configuration before ordering the 20R-4562 fuel injector pump .

Why Choose This Genuine CAT Fuel Injector Pump?

1. OEM Precision for Optimal Combustion: This genuine CAT fuel injector pump is manufactured to exacting factory specifications for flow rate, injection timing, and pressure delivery. It ensures the precise fuel metering required for complete combustion, maximum power output, and optimal fuel economy .

2. Restores Engine Power & Response: A failing injection pump leads to hard starting, rough idle, loss of power under load, and sluggish throttle response. Replacing it with an OEM unit restores the engine’s designed horsepower and torque characteristics .

3. Critical for Emissions Compliance: Modern C4.4 and C7.1 engines rely on precise fuel delivery to meet strict emissions standards. A faulty pump can cause excessive smoke, failed emissions tests, and potential DPF (Diesel Particulate Filter) or SCR (Selective Catalytic Reduction) system issues .

4. Built for Durability & High Pressure: These pumps are engineered to withstand the extreme pressures (up to 26,000 psi) and demanding conditions of heavy equipment operation. Precision-machined components ensure long service life and reliable performance .

5. Protects Your Fuel System Investment: A failing injection pump can send debris through the fuel system, damaging injectors, fuel lines, and other components. Replacing it with an OEM unit safeguards the entire fuel system .

Technical Specifications & Details

Symptoms of a Failing Fuel Injector Pump

Replace your pump with 20R-4562 if you observe any of these warning signs:

Common Diagnostic Trouble Codes (DTCs)

The following DTCs may indicate fuel injector pump issues on C4.4 and C7.1 engines:

• P0087: Fuel rail/system pressure too low

• P0088: Fuel rail/system pressure too high

• P0093: Fuel system leak detected (large leak)

• P0191: Fuel rail pressure sensor circuit range/performance

• P1011: Fuel injection pump control module (ECM) communication error

• P1012: Fuel injection pump control module performance

Order Your CAT C4.4 / C7.1 Fuel Injector Pump Today

Restore proper fuel delivery and combustion efficiency to your Caterpillar engine with a genuine OEM fuel injector pump. Our 20R-4562 fuel injector pump for CAT C4.4 and C7.1 engines is in stock and ready for immediate shipment.

Click to order the CAT 20R-4562 PUMP GP-FUEL INJECTOR. Contact our technical team with your engine serial number for guaranteed compatibility confirmation and to ensure you have all necessary installation components.