Top 10 Best 50 amp generator cord in 2026

Last Updated - 6/18/2026

🏆Best Choice

POWGRN

POWGRN NEMA 14-50P to NEMA 14-50R 50 Amp RV/EV Extension Cord 25 FT Outdoor with Grip Handle, Flexible Heavy Duty RV Power Cord Waterproof, 50A 125/250V 6250/12500W STW, Black-Yellow, ETL Listed

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•50AMP RV Extension Cord: NEMA 14-50P Male to NEMA 14-50R Female, 50Amax, 125/250volts, 6250/12500watts, STW, NEMA 14-50 Extension cord suit for Level 2 EV charging such as Tesla Model 3, S, X and Y; Please note to compare the type of plug you need to avoid incompatibility or other accidents
•Weatherproof and Durable: NEMA 14-50P/R RV extension cord jacket is wear-resistant and durable, 50 amp rv cord is IP65 waterproof, weather-resistant, corrosion-resistant, heat-resistant and flame retardant; RV 50 amp extension cord pure copper
•User-friendly Design: RV extension cord 50 amp have Insulated handle, more handle space, so that you can easily plug and unplug without damaging the RV cord, making it safer to use
•Flexible and portable: The 50 amp RV power cord is made of a soft and strong material that can remain flexible at -40°F, not break easily when bent; In addition, a grip storage cord makes the RV electrical cord easier to store
•ETL and NOTE: This RV 50 amp power cord is ETL certified, it is safer to fully deploy the cable in use

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$84.99

$111.99

-24%

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PlugSaf

PlugSaf 50 Amp Generator Cord, 25FT 50 Amp RV Extension Cord with Twist Lock, Generator Cable 50A 4 Prong Yellow, NEMA 14-50P/SS2-50R Heavy Duty STW Wire for RV Camper & House

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Emergency Power Ready: 50 amp generator cord connect 50amp portable generator to house's 50A SS2-50P or CS6375 power inlet box, manual transfer switch, breaker panel; 50 amp generator extension cord providing your family with a safe and reliable power supply during blackouts, storms, hurricanes, floods, or thunderstorms
•Reliable Electrical Rating: Male plug is NEMA 14-50P, 50A, 250V, 12500W; Female receptacle plug is NEMA SS 2-50R, 50A, 250V, 12500W with locking threaded ring; 50A generator outdoor extension cord waterproof constructed with heavy duty STW generator power cord; 50 amp rv cord all ETL certified
•Weatherproof Twist Locking Design: 50 amp RV extension cord female twist locking connector with a threaded ring; This design ensures a secure and weatherproof connection between the adapter and your power inlet box; You can have peace of mind knowing that your power supply will stay intact even in challenging outdoor conditions
•Enhanced Safety&Durable: 50 amp rv power cord heavy duty cord inner core made of pure copper and outer jacket is heavy duty flame retardant, UV-resistant polyvinyl plastic sleeve that serves as protection from outdoor weatherproof, wear and tear, ensuring optimal conductivity and reducing the risk of overheating or electrical hazards
•Easy to Use and Organize: 25 FT yellow 50amp generator extension cord comes with ergonomic grip handles on the male end for easy plugging and unplugging; RV extension cord 50 amp includes adjustable cord storage straps, making carrying and storing the cord a breeze

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$124.99

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VEVOR

VEVOR 50 Amp Generator Cord and Power Inlet Box Kit, 25FT Generator Extension Cord NEMA 14-50P/SS2-50R STW 6/3+8/1 AWG with Twist Lock Connector, Pre-Drilled Inlet Box, ETL Listed

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Premium 50A Generator Cord: Our generator cord is STW gauge with 6/3+8/1 AWG Cord, supporting up to 50 AMP current. Featuring a NEMA 14-50P male plug designed to fit into a 50A generator output and a twist-lock NEMA SS2-50R female plug for a secure connection to a 50A power inlet box with a NEMA SS2-50P male end. Perfect for emergency power needs in any weather!
•ETL Certified Reliability: Ensure ultimate security and durability with our ETL-certified generator cord and power inlet box, designed to withstand tough conditions. This 25-foot heavy-duty generator cord is crafted from pure copper wiring and encased in flame-retardant PVC that resists heat and UV damage. It protects against rain, wind, snow, soil, and rocks, even when used outdoors for long periods.
•Flip Cover Power Inlet Box: Featuring a pre-drilled hole design with detachable plug, this power inlet box simplifies installation without additional tools. Its entire casing is coated with a rust-resistant layer, providing robust protection against wind, rain, and dust. The clear indicator light on the flip cover illuminates when the power is successfully connected, allowing for easy visibility at any time of day or night.
•Twist-Lock Design: Our generator cord features a thoughtfully designed handle on the male plug, making it effortless to connect and disconnect while reducing the risk of damage from forceful interactions. The female end boasts a robust twist-lock mechanism that securely locks the plug into place with a simple twist. It ensures a stable, slip-free connection and shields the interior from dust and water intrusion.
•Ideal for Outdoor Power Needs: Experience uninterrupted power supply to your home or RV with our 50A generator cord and power inlet box kit, even during power outages and severe weather conditions. It includes a carrying strap and a storage bag, making it easy to handle and store. When not in use, the generator cord can be easily rolled up and stored without taking up space in your RV or home. Rely on our kit for a stable and dependable power output!

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$123.90

$139.99

-11%

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Kohree

UL Listed 25 Feet 50 Amp Generator Extension Cord, NEMA 14-50P Male to SS2-50R 6/3+8/1 AWG 125/250V Heavy Duty Generator Power Cable with Twist Lock, Connectors for Generator to House

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•【2-IN-1 GENERATOR CORD】As Essential Tools For Home Backup Power. 50 Amp generator cord connect the generator to provide with a stable power supply. Besides as generator extension cord, when unplug the pin on the SS2-50R plug, can use it for 50AMP RV power extension cord on the RV charging port, compatible with all SS2-50P/CS6375 inlet boxes.
•【SAFETY DESIGN - TWIST LOCK】50 amp RV generator cord designed with NEMA SS2-50R twist lock connector to avoid cord slipping from holster & lock tightly for security use. Male/ Female end of cord is designed with ergonomic grip handles to safely and easily plug and unplug connector.
•【 HIGH QUALITY & ETL LISTED 】50 Amp RV generator extension power cord heavy duty 6/3 + 8/1 gauge cord inner core made of 100% copper wire coated with a heavy duty flame retardant, heat resistant PVC sheath & water resistant molded plug, helps serves as protection from outdoor weatherproof, wear and tear, ensuring optimal conductivity and reducing the risk of overheating or electrical hazards.
•【HIGH CONDUCTIVITY】50 Amp. 6/3 AWG+8/1 AWG STW. Cable Male plug：NEMA 14-50P with the pin. Female plug：NEMA SS2-50R. 125/250V, 6250/12500W. A useful and reliable emergency electric extension cord for your generator. Offer three sizes for choose from: 10FT, 25FT, 50FT.
•【EASY TO ORGANIZE】Comes with a cable organizer for you to storage the cable flexible & effrctively. 50 Amp RV generator extension cord providing your family with a safe and reliable power supply during blackouts, storms, hurricanes, floods, or thunderstorms.

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$110.99

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PlugSaf

PlugSaf 50 Amp Generator Cord, 25FT 50 Amp RV Extension Cord with Twist Lock, Generator Cable 50A 4 Prong Green, NEMA 14-50P/SS2-50R Heavy Duty STW Wire for RV Camper & House

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Emergency Power Ready: 50 Amp generator cord connect 50amp portable generator to house's 50A SS2-50P or CS6375 power inlet box, manual transfer switch/breaker panel; 50 amp generator extension cord providing your family with a safe and reliable power supply during blackouts, storms, hurricanes, floods, or thunderstorms
•Reliable Electrical Rating: Male plug is NEMA 14-50P, 50A, 250V, 12500W; Female receptacle plug is NEMA SS 2-50R, 50A, 250V, 12500W with locking threaded ring; 50A generator outdoor extension cord waterproof constructed with heavy duty STW generator power cord; 50 amp rv cord all ETL certified
•Weatherproof Twist Locking Design: 50 amp RV extension cord female twist locking connector with a threaded ring; This design ensures a secure and weatherproof connection between the adapter and your power inlet box; You can have peace of mind knowing that your power supply will stay intact even in challenging outdoor conditions
•Enhanced Safety&Durable: 50 amp rv power cord heavy duty cord inner core made of pure copper and outer jacket is heavy duty flame retardant, UV-resistant polyvinyl plastic sleeve that serves as protection from outdoor weatherproof, wear and tear, ensuring optimal conductivity and reducing the risk of overheating or electrical hazards
•Easy to Use and Organize: 25 FT green 50amp generator extension cord comes with ergonomic grip handles on the male end for easy plugging and unplugging; RV extension cord 50 amp includes adjustable cord storage straps; making carrying and storing the cord a breeze

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$99.99

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HILINEGO

HILINEGO 50 Amp Generator Cord 25FT and Power Inlet Box, 125V/250V Extension Power Cord, NEMA 14-50P/SS2-50R Twist Lock Connector, NEMA SS2-50P Pre-Drilled Inlet Box for Generator to House, ETL Listed

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•【50A Generator Cord】Includes a 25FT cord with a NEMA 14-50P male plug and SS2-50R female connector, providing 50 Amps at 125/250 Volts with a maximum wattage of 12,500 Watts. The pure copper wiring is coated with a heavy-duty flame retardant and PVC jacket, making it heat and UV resistant. The cord is UL listed for safety and durability.
•【Pre-drilled Generator Inlet Box】50A, 125V/250V, Max power: 12500W. Featuring a NEMA SS2-50P twist-lock style power generator inlet box, this product is coated with anti-rust protection, ensuring durability against harsh weather conditions. It serves as the perfect companion for connecting your generator to the house power cord.
•【ETL Listed】Our Generator Cord and Power Inlet Box is proudly ETL Listed, ensuring high quality and safety standards. With 100% copper construction and a temperature range of -4°F to 221°F, you can trust this set to safeguard your family during power outages, hurricanes, storms, floods, and thunderstorms.
•【Package Contents】The package includes 1 x 50 Amp Generator Cord, 1 x 50 Amp Inlet Box, 1 x Extra storage bag, 1 x Carrying strap for convenient transportation. Trust this comprehensive set for all your power connection needs.
•【Trustworthy】At Hilinego, we believe that every 50A generator cord and 50A generator inlet box we produce is a reflection of our commitment to enhancing the quality of life. Our dedication to providing top-notch products with practical design at a great value is unwavering. If you are not completely satisfied with our products, please don't hesitate to reach out to us anytime for assistance. We are here to address your concerns and ensure your satisfaction.

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$109.99

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VEVOR

VEVOR 25 FT 50 Amp Generator Extension Cord NEMA N14-50P & SS2-50R & CS6364, STW 6/3 + 8/1 AWG 125V 250V Generator Power Cord Twist Lock Connectors

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•50A Pure Copper Cable: Current: 50AMP, Voltage: 125/250V, Power: 12500W. This 50A power cord is pure copper wires. It has 6/3+ 8/1 (3 wires at 6 AWG, 1 wire at 8 AWG) cable, which is heavy-duty but flexible enough to be managed.s from standing too close to the hazardous exhaust.
•20FT Power Cord: The 20FT length generator cord is suitable for long-distance operation. Possessing the capacity of STW, this 50 amp generator cord can be used indoors and outdoors in all weather and seasons.
•Twist Locking Design: Locking ring design keeps dust and rain out of plug connection. When the plug is inserted and twisted into the locked position, it will not slip from the generator socket due to wind, hurricane, heavy rain, snow, etc.
•Portable Strap: The ergonomic grip makes it easier for you to plug and unplug. The plastic strap makes the cord neat when not in use. This generator wire is perfect for emergency generator connection to help power the entire home, office, shop, etc.
•Wide Application: This cord enables an easier reach from your generator to your nearest power receptacle or electrical connection. So you can use secure electricity when you are home, working, or outdoor traveling.

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$96.75

$101.85

-5%

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RVGUARD

RVGUARD Emergency Power Combo Kit, 25 Foot 50 Amp Generator Cord and Power Inlet Box, NEMA 14-50P to SS2-50R Generator Cord with NEMA SS2-50P Pre-Drilled Generator Inlet Box, ETL Listed

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Emergency Power: In the event of power outages or residing in regions with inconsistent electricity supply, the utilization of this kit in conjunction with a generator can confer emergency backup power solutions for residential households. PATENTED.
•Pre Knock out: The wiring holes can be effortlessly detached and reattached without the need for specialized tools, negating any concerns of inadvertent product damage caused by drilling.
•50 Amp Generator Cord: 25 Foot, 14-50P to SS2-50R generator extension cord, 125/250V 6750/12500W heavy duty STW cord.
•50 Amp Power Inlet Box: SS2-50 generator plug, 125/250V 6750/12500W power inlet box, capable of satisfying a broad range of electrical demands.
•Superior Durability: The power cord is fabricated using weather-resistant 6/3+8/1 gauge STW jacket material, while the box is constructed from steel and coated with anti-corrosive powder for added durability. PATENTED.

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$119.99

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Rophor

Rophor 50 Amp Generator Cord 25 Feet, NEMA 14-50p to CS6364 & SS2-50R Generator Emergency Power Cord, 125/250V, 12500 Watts, Perfect for Generator to House Connection

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•【50 AMP GENERATOR EXTENSION CORD】: NEMA 14-50P male plug into generator power socket, CS6364 connects to 50 amp generator inlet box. Perfect for use with a backup power supply during a power outage.
•【HIGHT QUALITY MATERIAL】: 600Volt thermoplastic STW Jacket all-copper wires in ETL standard for heat-proof insulation and antioxidants. Features excellent abrasion, oil and moisture resistance and flexibility. It should last for a long time even with rugged use.
•【TWIST LOCKING DESIGN CONNECTOR】: Locking ring design keeps dust and rain out of plug connection. When the plug is inserted and twisted into the locked position, it will not slip from the generator socket due to wind, hurricane, heavy rain, snow, etc.
•【PRODUCT SPECIFICATION】: Support max 50 Amp overload, 125/250V, max wattage 12500 watts, 25 feet, STW power cord with 14-50P male plug and CS6364 connector.
•【WHY CHOOSE US】: Rophor specializes in the production of various adapter power cords. The products have been rigorously tested to ensure that each product received by our user can work perfectly. Won’t sacrifice the quality for the price.

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$109.99

$119.99

-8%

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RVPLAN

RVPLAN 25 FT 50 Amp RV Extension Cord Outdoor Waterproof,14-50P to SS2-50R Heavy Duty STW Generator Extension Cord for RV Camper & Generator to House,with Locking Connector & Cord Organizer,Black-Red

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•【ELECTRICAL RATING】50AMP RV extension cord,4 Prong RV cord 25 foot rated for 6250 Watt (125V) and 12500 Watt (250V). STW pure copper power cord with 14-50P male plug and SS2-50R twist locking female for RV camper and generator to home.
•【Weatherproof & Durable】RV extension cord 50 amp is constructed with high-quality materials，making it suitable for use in various weather conditions, including scorching sun, rain, and low temperatures (-40°C).100% Pure copper wiring coated with a heavy duty flame-retardant,heat-resistant,corrosion-resistant, wear-resistant ensuring safer and more reliable usage for your outdoor RV.
•【Safety Design】Easier to plug in and plug out without damaging the cable, and it keeps your fingers away from the power source to ensures safe and leak free power conduction, avoid accidental injury.
•【Multi-purpose】50Amp RV cord is ideal for motorhomes, travel trailers, auto vehicles, and outside campers, and also suit for Level 2 EV charging such as Tesla Model 3, S, X, and Y.
•【EASY TO ORGANIZE】Comes with a high quality storage bag and adjustable cord organizer that makes carrying and storing simple after use. Easy to store in your RV or garage.Your satisfaction is our biggest pursuit, if you encounter problems in the process of purchase and use, you can contact us at any time, we will solve within 24 hours.

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$79.99

$89.99

-11%

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