SKU: 5139885309

Generac 18000W EFI Portable Generator Electric Start COsense 50ST

Sale price$1979.55 Regular price$2199.50
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Generac 18000W EFI Portable Generator Electric Start COsense 50STGP18000EFI Portable Generator From emergency home backup to DIY projects to the jobsite, the Generac GP18000EFI portable generator provides high wattage, dependable portable power. Equipped with an 816cc engine with Electronic Fuel Injection, the GP18000EFI delivers power efficiently, providing up to 9 hours of runtime at 50% load. TruePower Technology safely powers sensitive electronics, appliances and tools while onboard COsense Technology provides

GP18000EFI Portable Generator

From emergency home backup to DIY projects to the jobsite, the Generac GP18000EFI portable generator provides high wattage, dependable portable power.  Equipped with an 816cc engine with Electronic Fuel Injection, the GP18000EFI delivers power efficiently, providing up to 9 hours of runtime at 50% load.  TruePower™ Technology safely powers sensitive electronics, appliances and tools while onboard COsense® Technology provides powerful protection against hazardous carbon monoxide.  The GP18000EFI also features electric start (battery included), low-oil shutdown protection, circuit breaker protected outlets and an hour meter with maintenance resets. The included never-flat wheel kit and available lifting eye accessory make transportation easy around the home or jobsite. 

Features

  • Featuring COsense Technology: STOPS. ALERTS. SAVES. Powerful protection against hazardous carbon monoxide.
  • Generac 816cc EFI Engine - Delivers the right amount of power to get the best performance and efficiency out of your engine 
  • TruePower Technology - With less than 5% THD, safely powers sensitive electronics and tools 
  • Low-Oil Pressure Shutdown - Automatically safeguards engine from damage 
  • Large Capacity Fuel Tank - With incorporated fuel gauge, provides durability and extended run times 
  • Hardened 1 ¼” Steel Tube Cradle - For added strength and durability 
  • Hour Meter - Tracks maintenance intervals
  • Heavy-Duty, Never-Flat Wheels - For reliable portability
  • Electric Start - Battery Included - Provides hassle-free start-up 

Resource

View Spec Sheet

Specifications

  • Product Series: 8917
  • Fuel Type: Gaseous
  • Fuel Tank Capacity: 14.2 gal
  • Oil Capacity: 2.2 qt
  • Starting Method: Electric Start
  • Battery Type: Group U1
  • Battery Size: 120/240 VAC
  • Wheel Kit Included:
  • Engine Type: OHV
  • Engine Size: 816cc (Liters not specified, original shows 816cc)
  • Length: 39.5 in
  • Width: 30.9 in
  • Length: 36.5 in
  • Weight: 442.8 lb
  • Running Watts: 18,000 W
  • Starting Watts: 22,500 W
  • Run Time @ 50% Load: 9 hr
  • Controller Type: N/A
  • Enclosure: N/A
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5139885309

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Steve M
Fort Morgan, US
★★★★★ 5
Good Replacement Part
Size: 72880-FL00A
Good filter, fits 2020 Subaru Outback well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
J
Verified Purchase
Jennifer
Alexandria, US
★★★★★ 5
2024 Subaru Outback
Size: 72880-FL00A
Fit perfectly. Easy to replace.
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Reviewed in the United States on May 6, 2026
M
Verified Purchase
M. Mass
Bozeman, US
★★★★★ 5
For Toyota Rav4
Size: 72880-FL00A
Great price and quality.
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Reviewed in the United States on April 17, 2026
B
Verified Purchase
BUCK IN GEORGIA
Omaha, US
★★★★★ 4
Good price reasonable quality
Size: 72880-FL00A
Looks like a good fit. Not ready to install just yet. I expect np problems. Thanks.
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Reviewed in the United States on July 22, 2024
P
Verified Purchase
Patrick Wright
Fort Morgan, US
★★★★★ 5
Check if your Subaru has / needs a plastic tray
Size: 72880-FL00A
Works great for my 2015 Subaru Outback, not so much for my 2013 Impreza in terms of installation, missing plastic holder for 2013 Subaru Impreza, while 2015 outback does not require the plastic holder
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Reviewed in the United States on April 28, 2026

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