HU294050-0521 | Genuine CAT® Fuel Injection Pump for CAT C7.1 24

Generator: LC51XX

Generator set: C7.1 Gen, C7.1 XQ230, XQP200

Hex based spl solution: 330F OEM, 320E

Engine: C7.1

Track loader: 963, 963K, 953K, 953

Soil compactor: 815K, 815

Wheel dozer: 814K, 814

Material handler: MH3022, MH3024, MH3032, MH3040

Motor grader: 120, 140 GC, 120M 2, 140

Landfill compactor: 816K, 816

Wheel loader: 966F II, 962M Z, 962, 950M Z, 950GC, 950K, 962K, 950M, 962M, 950 GC, 926, 924K, 930, 938, 938K, 966F, 938M, 926M, 930K, 930M, 950

Track-type tractor: D5, D6N LGP, D6K2 XL, D6K2 LGP, D6N OEM, D6N XL, D6N

Wheel skidder: 535D, 545D, 555D, 525D

Knuckleboom loader: 2484C, 559C, 2384C, 579C

Asphalt paver: AP1055, AP-1055F, AP-1055E, AP-1000E, AP-1000F, BG1000E, BG1055E, AP1000

Wheeled excavator: MH3026, MH3024, M322F, M322, M318F, MH3040, M320F

Forestry products: 548, 558, 538

Industrial engine: C6.6, C7.1

Log loadr forst mach: 558

Wheel feller buncher: 2570C, 2570D, 573C, 573D, 563C, 563D, 2670C, 2670D

Excavator: 336 GC FM538, 324E, 320E LRR, 324E L, FM548, 335F, 323F, M318F, 326, 330 GC, 323, 329E L, MH3040, 330, 335, 336, 333, 324E LN, 330F L, 329E, 320E L, 548, 329F L, 335F LCR, 320E, 323E L, 558, 329E LN, 326F L, 323E SA, 320E LN, 330F, 323E LN, FM558, 326F LN, 323F L, 538, 330F LN, 330GC, 326F LN, 320E RR

Mobile hyd power unit: 329E, 330F, 330 MHPU, 330FMHPU, C7.1

• Pressurize fuel — creates the high pressure needed for fuel injection and proper atomization.
• Meter fuel — supplies the correct amount of fuel according to engine speed and load.
• Control injection timing — ensures fuel is delivered at the proper point in the combustion cycle.
• Distribute fuel — sends fuel to the correct cylinder in the correct firing sequence.
• Support engine power and efficiency — accurate fuel delivery helps maintain proper combustion, power, fuel economy, and emissions.

• Hard starting or long cranking — the pump may not generate sufficient injection pressure.
• Engine will not start — a severely failed pump may stop delivering fuel altogether.
• Loss of engine power — especially noticeable during acceleration, towing, or climbing hills.
• Rough or unstable idle — inconsistent fuel delivery can cause uneven engine operation.
• Engine misfires — incorrect fuel quantity or timing can cause incomplete combustion.
• Engine stalling — the engine may stall at idle or under load.
• Hesitation or surging — fuel delivery may fluctuate as pump pressure or internal components deteriorate.
• Excessive exhaust smoke — white, gray, or black smoke can occur when fuel delivery or injection timing is incorrect.
• Fuel leaks around the pump — worn seals or damaged pump components can allow diesel to leak.
• Check Engine / warning light — modern electronically controlled systems may store fuel-pressure or injection-related fault codes.
• Poor fuel economy — incorrect fuel metering can increase fuel consumption.
• Unusual pump noise — whining, grinding, or other abnormal noises can indicate mechanical wear.