Part Numbers: 3408533, 3408533 (no dash), 3331031, 3331031 (no dash) – 100% genuine Cummins packaging.

Application Engines: Cummins QSK60 diesel & gas variants.

Typical Equipment:

• Komatsu 960E-1 rigid haul truck

• BelAZ 7513 mining dump truck

• Liebherr T264 excavator

• Cummins C2250D5 stationary generator

Function: Electronic fuel metering actuator + regulating valve ensure precise timing & quantity, improving fuel economy up to 3% and cutting NOx emissions.

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Why Choose Growshine International?

Growshine International is a professional import-and-export enterprise specializing in construction machinery parts, heavy-truck parts, agricultural parts and automotive parts. From turbochargers to hydraulic pumps, we stock 30,000+ SKU in our Shanghai & Guangzhou warehouses, ready for same-day despatch to 120 countries. Every part is double-checked with Cummins QuickServe, Komatsu EPC or your OEM list to guarantee fitment.

Random Parts Glossary (Mounting Location + Equipment Example)

1. Crankshaft position sensor – installed on timing gear cover of Cummins QSK60 generator set C2250D5

2. Water temperature sender – located near thermostat housing of John Deere 9R 9700 harvester

3. Turbocharger wastegate actuator – bolted to GT50 turbo on Volvo FH16 750 heavy truck

4. Brake booster vacuum pump – mounted on camshaft of Mercedes-Benz Actros 2651

5. Main hydraulic pump solenoid – fitted to K3V112 pump on Hitachi ZX890LCH excavator

6. Fan belt tensioner pulley – fixed on front bracket of CAT 349F L hydraulic excavator

7. Fuel water separator sensor – screwed into filter bowl of New Holland T7.315 tractor

8. Transmission clutch disc – inside 16-speed gearbox of Scania R730 8×4 tipper

9. Steering orbitrol valve – on priority flow divider of XCMG QY100K truck crane

10. Engine oil cooler core – inserted in oil module of Doosan DX520LC-7 crawler excavator

Fault Case & Solution

Equipment: Komatsu 960E-1 (S/N A10358) with Cummins QSK60 engine

Symptom: Intermittent engine derate, fault code 187 (fuel actuator response slow).

Root Cause: Internal short in coil winding of actuator 3408533 caused current drop below 0.3 A.

Solution: Replaced with new genuine Growshine-supplied 3408533 & calibrated with INSITE 8.9; cleared fault, performed 20-min high-idle test, truck regains full 2 750 hp. Saved 4 hours downtime & 1 200 USD potential towing fee.

Product Knowledge – How the QSK60 Fuel Actuator Works

The 3408533 actuator is a high-speed solenoid valve controlled by the ECM. It converts PWM electrical signal into linear spool movement, adjusting fuel pressure from 30 to 220 bar in<5 ms. The paired 3331031 regulating valve maintains downstream pressure stability within ±1%, protecting injectors and improving combustion efficiency. Always replace both together to avoid calibration mismatch.

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