Generac Air-Cooled Standby Generator – Model G007259-0 (18 kW)

The Generac 18 kW air-cooled standby generator (Model G007259-0) is a residential backup power solution designed for reliable whole-home coverage. It features a durable G-Force engine, advanced voltage regulation, and smart connectivity for remote monitoring. Built for extended run times and demanding conditions, it delivers clean, stable power for sensitive electronics.

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Generac Air-Cooled Standby Generator – Model G007259-0 (18 kW)

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SKU: 7259

  • 18 kW standby power (LP), 17 kW on natural gas 
  • True Power™ Technology with <5% total harmonic distortion 
  • Mobile Link® connectivity with cellular, Wi-Fi, and Bluetooth 
  • G-Force engine designed for durability and long run times 
  • Automatic voltage regulation (±1%) 
  • Smart Exercise Technology for efficient operation 
  • Quiet-Test™ low-speed exercise mode 
  • Operates on natural gas or liquid propane 
  • Sound-attenuated, weather-resistant enclosure 
  • Power Zone™ 200 controller with LED indicators 
  • Compatible with 200A transfer switch systems 
  • 5-year limited warranty 
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G007259-0 (18 kW) - Details and specifications

General Details 

Type: Air-cooled residential standby generator 

Frequency: 60 Hz 

Phase: Single-phase 

Fuel Type: Natural Gas or Liquid Propane 

Warranty: 5-Year Limited 

Engine Specifications 

Engine Model: Generac G-Force 800 Series 

Cylinders: 2 

Displacement: 817 cc 

Valve Type: Overhead Valve 

Ignition: Solid-state 

Governor: Electronic 

Compression Ratio: 9.5:1 

Oil Capacity: Approx. 2.5 qt 

Operating RPM: 3600 

Generator Specifications 

Rated Power (LP): 18 kW 

Rated Power (NG): 17 kW 

Voltage: 240 V 

Max Load Current: 75 A (LP) / 71 A (NG) 

THD: <5% 

Circuit Breaker: 80 Amp 

Power Factor: 1.0 

Dimensions and Weight 

Dimensions (L x W x H): 46.4 x 26.3 x 30.7 inches 

Weight: 426 lbs 

Sound Levels 

Normal Operation: 65 dB(A) at 23 ft 

Quiet-Test Mode: 55 dB(A) 

Fuel Consumption 

Natural Gas (Full Load): 235 ft³/hr 

Liquid Propane (Full Load): 105 ft³/hr 

 

PRODUCT SPECIFICATIONS:

CategoryValue
ModelG007259-0
Power Output (LP)18 kW
Power Output (NG)17 kW
Voltage240 V
Frequency60 Hz
PhaseSingle
Max Current (LP)75 A
Max Current (NG)71 A
THD<5%
Circuit Breaker80 A
EngineGenerac G-Force 800 Series
Cylinders2
Displacement817 cc
RPM3600
Fuel TypeNatural Gas / Liquid Propane
Dimensions (L x W x H)46.4 x 26.3 x 30.7 inches
Weight426 lbs
Sound Level65 dB(A)
Quiet Mode Sound55 dB(A)
Oil Capacity2.5 qt
Warranty5 years

 

PRODUCT RELATED DOCUMENTS:

Spec Sheet A0005151081 EN.pdf

Spec Sheet A0005151082 ES.pdf

Unit Warranty Statement 10000039087 EN.pdf

Unit Warranty Statement 10000039217 ES.pdf

Unit Warranty Statement 10000039253 EN.pdf

Wiring Diagram, Schematic Drawing A0005639538 EN.pdf

Quick Start Guide A0007205240 EN.pdf

Quick Start Guide A0005151099 EN.pdf

Parts Manual EV Unit A0008745374 EN.pdf

Parts Manual EV Engine A0004317434 EN.pdf

Owner Manual A0005151071 ES.pdf

Owner Manual A0004332577 EN.pdf

Install Manual A0005736586 EN.pdf

Install Manual A0005151075 ES.pdf

Install Manual A0004332575 EN.pdf

Emissions Warranty Statement A0007528060 ES.pdf

Emissions Warranty Statement A0006652600 EN.pdf

Additional Info
Peso7259 lbs
Dimensiones46.4 × 26.3 × 30.7 in
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