Overview
The 3085219 is an electric actuator specifically designed for Cummins PT (Pressure-Time) fuel pump diesel generator engines. It converts electronic control signals from the speed governor into linear mechanical movement, directly controlling the PT pump fuel metering valve to regulate engine RPM and power output.
**Note:** This is an **actuator** (fuel control device), NOT a speed governor (engine controller). It works together with a speed governor (e.g., Cummins EFC governor) to form a complete engine speed control system.
Key Features
- Cummins PT Pump Direct Mount — Flange-mount electric actuator specifically designed for Cummins PT(G) fuel injection pumps found on N14, K19, K38, and K50 engines
- 24V DC Electric Operation — Continuous-duty solenoid design rated for generator set engine compartments with operating temperature -40°C to +120°C
- Proportional Fuel Control — Linear actuator stroke provides precise fuel metering for EFC electronic governor closed-loop speed regulation
- Direct OEM Replacement — Drop-in replacement for Cummins 3085219 PT pump actuator with identical mounting bolt pattern and electrical connector
- High-Cycle Durability — Hardened internal components rated for >500,000 operating cycles in continuous-duty generator applications
- Sealed Construction — IP65-rated housing protects against dust, oil mist, and moisture ingress in generator enclosure environments
Technical Specifications
| Parameter | Value |
|---|---|
| ———– | ——- |
| Model | 3085219 |
| Type | Electric Linear Actuator (PT Pump) |
| Application | Cummins PT Fuel Pump Control |
| Rated Voltage | 24V DC |
| Operating Current | 0-2.5A |
| Response Time | 10-20 ms |
| Torque | 8 kg·cm |
| Frequency Response | 0.1 Hz |
| Duty Cycle | Continuous |
| Operating Temp | 15°C to 125°C |
| Mounting | PT pump mounted (internal) |
| Engine Power Range | 200-300 KW |
| Type | Normally Closed (NC) |
Compatibility
Compatible with Cummins diesel engines using PT fuel pump system. Works with Cummins EFC electronic speed governors (3037359, 3044195, 3044196, 3062322, 3098693, 4914090, 4914091, 3032733).
Suitable for Cummins engine models: NTA855, KTA19, M11, LTA10, and other PT-pump equipped engines in 200-300KW range.
Why Choose ZenixPower
- Cummins OEM Specification — Manufactured to original Cummins dimensional and performance standards
- Normally Closed Safety — Spring-return to fuel-cut on power loss prevents runaway
- Fast 10-20ms Response — Maintains stable engine speed under sudden load changes
- 24V DC Standard — Compatible with all diesel generator electrical systems
- 100% Tested — Every actuator verified for stroke, force, and response before shipment
Competitors GAC ADC120 — external actuator | GAC ADC175 — pump-mounted actuator | Cummins 3408326 — high-flow EFC
Specification Comparison
| Parameter | 3085219 | GAC ADC120 | GAC ADC175 | Cummins 3408326 |
|---|---|---|---|---|
| Brand | Cummins (USA) | GAC (USA) | GAC (USA) | Cummins (USA) |
| Type | Normally Closed (NC) | External Electric | Pump-Mounted | EFC Electric |
| Torque | 8 kg·cm | 1.0 lb-ft | 6.2 lb-ft | High-flow |
| Stroke | — | 25° rotary | 0.80 in linear | Linear |
| DC Supply | — | 12/24V DC | 24V DC | 24V DC |
| Valve Type | — | NO/NC selectable | NO | NC (Normally Closed) |
| Power Range | — | 100–500 kW | 100–500 kW | 400–800 kW |
| Price | Contact Us | $180–280 | $250–400 | $300–500 |
