180-7341 UNIT INJECTOR PUMP GP for CAT 3126B, D5N, D6N, 322C, 325C

Genuine CAT 180-7341 UNIT INJECTOR PUMP GP: Solve HEUI System Power Loss

Hard starting, severe power loss, and excessive black smoke from your Caterpillar® equipment are critical signs of a failing HEUI fuel system component. The 180-7341 UNIT INJECTOR PUMP GP for CAT 3126B engine is the direct OEM replacement designed to restore reliable high-pressure oil supply to the hydraulic electronic unit injectors. Also known as part number 1807341, this genuine fuel pump GP is essential for maintaining the performance and efficiency of Caterpillar 3126B and C-12 engines across multiple machine platforms.

video download

website

Direct Replacement for CAT Machines with 3126B/C-12 Engines

This CAT HEUI fuel pump is engineered for a precise fit and function in equipment utilizing the 3126B power unit. Key compatible machine models include:

• For Caterpillar Track-Type Tractors (Dozers):

  • D5N Series: D5N, D5N LGP, D5N Series II.

  • D6N Series: D6N, D6N LGP, D6N Series II.

• For Caterpillar Hydraulic Excavators:

  • 322C Series: 322C, 322C L, 322C LN.

  • 325C Series: 325C, 325C L, 325C LN.

• Wider Application: This pump also serves various on-highway trucks (e.g., CT series) and industrial power units equipped with the 3126B or C-12 engine.

Compatibility is Key: Due to variations across production years, always verify your machine’s model and Engine Serial Number (ESN) before purchase. Installing the correct 180-7341 unit injector pump is crucial for the proper operation of the High-Pressure Oil (HPO) system.

Critical Benefits of This OEM CAT Fuel Injection Pump

1. OEM Specifications for Reliable Pressure: As a genuine CAT engine part, this pump is built to deliver the exact high-pressure oil flow (3000+ psi) required by the HEUI injectors. This ensures precise fuel metering, optimal combustion, and restored engine power.

2. Solves Common HEUI System Failures: Directly addresses symptoms like hard cold starts, lack of throttle response, low power under load, rough idle, and black exhaust smoke caused by insufficient injection control pressure.

3. Ensures Fuel Efficiency & Compliance: A properly functioning pump allows the Engine Control Module (ECM) to precisely manage injection timing and fuel quantity, optimizing fuel economy and helping control emissions.

4. Protects Your Investment: Failure of this critical pump can lead to poor performance and potential damage to the unit injectors themselves. Using an OEM-quality replacement safeguards the entire fuel injection system.

Product Specifications & Technical Details

• Genuine Part Numbers: 180-7341 / 1807341.

• Component Type: Unit Injector Pump GP (High-Pressure Oil Pump for HEUI System).

• Function: Driven by the engine gear train, it generates hydraulic pressure from engine oil to actuate the electronic unit injectors, which then inject fuel into the cylinders.

• Application: A vital fuel system component and diesel engine part for Caterpillar 3126B and C-12 HEUI engines.

Diagnosing a Faulty HEUI High-Pressure Oil Pump

Order the 180-7341 UNIT INJECTOR PUMP GP if your equipment exhibits these diagnostic symptoms:

• Extended cranking time, especially when the engine is cold.

• Significant loss of engine power and poor acceleration.

• Rough engine idle or noticeable misfires.

• Excessive black smoke from the exhaust stack.

• Active diagnostic trouble codes related to Injection Control Pressure (ICP), such as low ICP pressure or ICP sensor/pressure issues.

Order Your CAT HEUI Unit Injector Pump Today

Restore the power and reliability of your equipment with a genuine component. Our 180-7341 unit injector pump for CAT 3126B is available for immediate shipping.

Click to order the genuine CAT 180-7341 UNIT INJECTOR PUMP GP. Contact our support team with your Engine Serial Number for precise compatibility verification.