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 15 - Jul 20

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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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4.3 ★★★★★
Based on 9 reviews
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Product Reviews
V
Verified Purchase
victor gonzalez
Los Angeles, US
★★★★★ 5
Fits like a glove
Style: Gloss Black Single Slat, Size: G20(2019-2022), Style: Gloss Black Single Slat, Size: G20(2019-2022)
I was kind of skeptical to purchase this grille but ended up pulling the trigger on it , installation was not that hard, the hardest part is to swap the camera attachment to the non camera one , after that everything was a breeze, looks great and the material quality is no different from oem, will do another review after couple of months to give more info on the durability and paint fading ( if there’s any, hope not)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2024
T
Verified Purchase
TPBayAMZN
San Leandro, US
★★★★★ 5
Instantly Changes The Look Of Your G20
Style: Gloss Black Single Slat, Size: G20(2019-2022)
Another great Amazon buy. Don't let the price or the crazy brand name keep you away. When I took the OEM grill off and compared it to this, it was pretty much spot on. All the clips are located in the right place, fits nice & snug and looks great. The most trouble I had was figuring out how to insert the front camera delete. There are no directions or videos explaining it. Once I concluded there's only one logical direction, I held my breath and applied the force that was needed to snap it into place. After that, it was a breeze (thanks to an unaffiliated YouTube video). Time will tell if it holds up (didn't like the other review that showed paint feeling off after a few weeks; not sure what that's about). If mine does the same, I'll surely update my review. For now, Highly Recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2024
B
Verified Purchase
Bal
Bozeman, US
★★★★★ 4
2000 bmw 232i
Style: Gloss Black Single Slat, Size: E46(1998-2001)4-Door, Style: Gloss Black Single Slat, Size: E46(1998-2001)4-Door
As many things made in China you can't expect not to do anything to them. I had to cut or shave off a bit on the clips to make it work. end results put a smile on my face. Still worth the effort. Just keep that in mind or they will fall off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
J
Verified Purchase
Just me
Port Orchard, US
★★★★★ 5
Love it
Style: Gloss Black Single Slat, Size: E90(2009-2011)
Worked great and looks awesome
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
K
Verified Purchase
Katt Marie Limpus
Alexandria, US
★★★★★ 5
Perfect OEM Fit in Seconds!
Style: Gloss Black Single Slat, Size: E46(1999-2002)2-Door, Style: Gloss Black Single Slat, Size: E46(1999-2002)2-Door
Perfect OEM Fit in 2 seconds!! I’m surprised and Happy and it looks Perfect on my BMW 2002 330ci
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026

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