Skip to content
Dealer Login About Support
Coiled yellow extension cord on a white background
Coiled yellow electrical extension cord on a white background
Yellow electrical cord with plug on a white background
Coiled yellow extension cord on a white background
Coiled yellow electrical extension cord on a white background
Yellow electrical cord with plug on a white background
SKU AC12740

Heavy-Duty Extension Cord 15A 12/3 50FT

Ideal for boats & outdoor use

by SIERRA
Availability:
in stock, ready to be shipped
$74.89 - $74.89
$74.89
$74.89 - $74.89
$74.89
Heavy-duty marine-grade extension cord built for demanding applications. Features 12/3 SJTOW cable rated for 15A/125V with universal compatibility for all 15A plugs. ETL Listed to meet UL and CSA safety standards. Bright yellow finish for visibility and easy identification. 50-foot length provides extended reach for deck work, engine compartments, and onboard maintenance tasks.
OEM INTERCHANGE

This product replaces: Marinco 151250

Warranty

Sierra's limited lifetime warranty. Read more about warranty policies here.

California Proposition 65 Warning WARNING Cancer or Reproductive Harm — www.P65Warnings.ca.gov
  • Rated for 15A/125V applications
  • Marine grade 12/3 SJTOW cable
  • Compatible with all 15A plugs
  • ETL Listed to meet UL and CSA regulations
  • Solid Yellow

Logistics

  • Dimensions parcel depth, ["]: 13.38997322
  • Dimensions parcel height, ["]: 3.53999292
  • Dimensions parcel width, ["]: 6.88998622
  • Parcel weight, [lbs]: 7.719705

Free Shipping

When you spend $50+

Contact Support

Talk to a real human on our team

Find a Dealer

Find your local SIERRA or Dometic dealer

Interchange for Heavy-Duty Extension Cord 15A 12/3 50FT

This product replaces: Marinco 151250

*Can't find what you're looking for? Search the entire SIERRA catalog with our parts-finder tool

60 YEARS OF SIERRA

SIERRA has a 60-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. The SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive brands formerly known as Shields and Moeller.

Learn More