Top 10 Best 30 amp generator cord in 2026

Last Updated - 6/7/2026

🏆Best Choice

CircleCord

CircleCord 4 Prong 15 Feet 30 Amp Generator Extension Cord and Inlet Box with Locking Connector, Heavy Duty NEMA L14-30P/L14-30R, 125/250V 7500W 10 Gauge SJTW Generator to House Power Cord

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•ETL Listed: High quality standards. 10 gauge 4 prong SJTW 125/250V up to 7500W, NEMA L14-30P male to L14-30R female twist lock, ETL Listed
•Emergency Ready: This generator extension cord with inlet box provides a safe and convenient way to connect your generator to the manual transfer switch on your house, providing the power you need in bad weathers. Also for house building
•Pre Drilled: The 4 knockouts were replaced by rubber plugs which are easy to remove directly without damaging the power inlet box. Never need a special tool (such as driller/knockout punch) to drill. Easy to Open
•Heavy Duty: Pure copper wiring coated with a heavy duty flame retardant, heat resistant, UV resistant PVC, provides protection from rain, wind, snow, soil, and rocks for emergency ready
•Easy to Organize: Comes with a lovely storage bag and adjustable cord organizer that makes carrying and storing simple after use

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$52.69

$57.69

-9%

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RVINGPRO

RVINGPRO 30 Amp Generator Cord 25FT and Power Inlet Box, Pre-Drilled 30 Amp Generator Inlet Box with Cord, NEMA L14-30P to L14-30R Generator Cord Waterproof Combo Kit, ETL Listed

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Heavy Duty 30 Amp Generator Cord: RVINGPRO 30 amp generator cord is made of 100% copper conductor with flame retardant coating and PVC jacket. Length: 25FT; Voltage: 125V/250V; Wire Gauge: 10/4 SJTW; Male Plug: NEMA 14-30P; Female Plug: NEMA L14-30R, Twist Locking Connector; Max Wattage: 7,500 Watts.
•Pre-Drilled 30 Amp Generator Inlet Box: RVINGPRO NEMA L14-30P 30 amp inlet box for generator is designed with 4 pre-drilled holes distributing in 4 directions (left, right, bottom and rear), which allows direct connection to switches and electrical panels from multiple directions. NO Hassle Drilling Needed. You can easily open the hole with your fingers within only 30s. PATENTED.
•ETL Listed: Both of RVINGPRO 30 amp generator cord and power inlet box have passed ETL certification, which are safe enough for outdoor use. Our generator to house hookup kit can work well in various terrible weather conditions, no matter hurricanes or snowstorm, ensuring a stable and continuous power supply for power outage emergency.
•Use with Ease: There is a weatherproof seal cap on the inlet box which closes when not in use, protecting the inlet from rain and dust Besides, there is a green indicator light on the cap of the 30 amp generator inlet box, which is easy for you to tell when the power is on.
•What You’ll Get: 1 x 30 Amp Generator Cord (25FT) + 1 x 30 Amp Generator Inlet Box (Pre-Drilled) + 1 x Cable Tie + 1 x Storage Bag. Besides, we offer 90 days no reason to return service. If you have any problems during using our product, welcome to reach out to us, there is professional customer service waiting to help solve your problems.

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$63.99

$69.99

-9%

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PlugSaf

PlugSaf 25FT 30 Amp Generator Extension Cord 4 Prong, NEMA L14-30P/L14-30R 10 Gauge STW 125/250V Twist Lock Generator Cord Heavy Duty, Black ETL Listed

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Features & Benefits: 25 foot 4 prong generator extension cord 30amp; STW 125/250v; 3750w/7500w; NEMA L14-30P to L14-30R; avoid overheating due to long-time use; more durable and safe
•Weatherproof & Durable: Heavy duty outdoor generator cord 30 amp 4 prong exhibits excellent weather resistance IP65 waterproof; making it suitable for use in various weather conditions; including sunlight; rain; and low temperatures (-40°C); it is constructed with high-quality materials and is heat-resistant; flame-retardant; corrosion-resistant; wear-resistant ensuring safer and more reliable
•Twist Locking Design: The twist lock plug prevents cord falling off due to external force in various severe weather conditions; easy grip and strain relief plug and socket design ensures the plug can bent at any angle without breaking
•Flexible & Easy to Storage: L14-30 generator power cord 25 ft jacket is made with solid and flexible material; allowing for easy bending and storage; adapting to different layouts and environments; additionally; equipped with an adjustable cord organizer that enables neat coiling of the cord and hanging; making storage and transportation easier and preventing tangles and messes
•Wide Application: Ideal for connecting portable generator to manual transfer switch, house and outdoor RV use

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$56.99

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POWGRN

POWGRN 30-Amp Generator Extension Cord (35 Feet) 4-Prong 125/250V 7500W, NEMA L14-30P/L14-30R,10 Gauge STW Locking Power Cord for Transfer Switch, Portable Generators,Yellow 35ft Generator Cable

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Can be Used in Any Ccenario: This heavy duty generator extension cord with multiple length options up to 75 feet; in case of power outages or emergencies; you can use the power cord to connect a portable generator and manual transfer switch to power houses; rvs and other outdoor camping equipment
•Weatherproof and Durable: Generator extension cable is etl certified with 30 amp 4 prong heavy duty generator cable; stw 125/250v; NEMA L14-30P to L14-30R; with excellent weather resistance and IP65 waterproof rating; it is suitable for use in all weather conditions; including sunlight; rain; and low temperatures (-40°C); it is heat-resistant; flame-retardant; corrosion-resistant and abrasion-resistant to ensure more safety and reliability
•Twist-lock Design & Stable Power Supply: The twist-lock plug prevents the cord from coming off due to external force in all kinds of harsh weather conditions; preventing power interruption; the plug and receptacle are designed for easy gripping and clamping; ensuring that the plug can be bent at any angle without breaking
•Matching Cord Organizer & Easy Storage: L14-30 generator power cord 35ft sheath is made of sturdy and flexible material; easy to bend and store; and can adapt to different layouts and environments in addition; an adjustable cord organizer is included to neatly coil and hang the cord; making storage and transportation easier and preventing tangles and confusion
•ETL Certification and Quality Assurance: We will check each product before shipment; your satisfaction is our utmost pursuit

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$51.99

$63.99

-19%

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Champion Power Equipment

Champion Power Equipment 25-Foot 30-Amp 250-Volt Generator Power Cord for Manual Transfer Switch (L14-30P to L14-30R)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Powerful – Connect the locking outlet on your generator to the manual transfer switch on your home and extend up to 30 amps of power
•Flexible – The cold and heat resistant 25-foot, 10-gauge wire stays flexible in extreme temperatures and is rated for 250-volt use
•Weather Resistant – Service grade, abrasion and weather-resistant SJTW insulation
•Safe – Extend your power up to 25 feet away, protecting you and others from hazardous generator exhaust
•Reliable – Champion Support includes 1-year limited warranty with FREE lifetime technical support from dedicated experts

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$69.48

$98.99

-30%

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PlugSaf

PlugSaf 15FT 30 Amp Generator Extension Cord 4 Prong, NEMA L14-30P/L14-30R 10 Gauge STW 125/250V Twist Lock Generator Cord Heavy Duty, Green ETL Listed

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Features & Benefits: 15 foot 4 prong generator extension cord 30amp; STW 125/250v; 3750w/7500w; NEMA L14-30P to L14-30R; avoid overheating due to long-time use; more durable and safe
•Weatherproof & Durable: Heavy duty outdoor generator cord 30 amp 4 prong exhibits excellent weather resistance IP65 waterproof; making it suitable for use in various weather conditions; including sunlight; rain; and low temperatures (-40°C); it is constructed with high-quality materials and is heat-resistant; flame-retardant; corrosion-resistant; wear-resistant ensuring safer and more reliable
•Twist Locking Design: The twist lock plug prevents cord falling off due to external force in various severe weather conditions; easy grip and strain relief plug and socket design ensures the plug can bent at any angle without breaking
•Flexible & Easy to Storage: L14-30 generator power cord 15 ft jacket is made with solid and flexible material; allowing for easy bending and storage; adapting to different layouts and environments; additionally; equipped with an adjustable cord organizer that enables neat coiling of the cord and hanging; making storage and transportation easier and preventing tangles and messes
•Wide Application: Ideal for connecting portable generator to manual transfer switch; house and outdoor RV use

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$34.99

$43.99

-20%

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Southwire

Southwire 65172840 20-Foot 30Amp Generator Cord; 10-Gauge Heavy Duty Electrical Power Cable with L14-30 Locking Plug; 125V / 250V; Yellow; Feet; Black

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•20 FOOT; 10 GAUGE GENERATOR CORD ideal for extending for use with RVs; campers; motorhomes and campgrounds
•HEAVY DUTY cord jackets and molded connectors are crafted to withstand the elements
•WEATHER RESISTANT to various conditions; chemicals; moisture and abrasions
•NEMA L14-30 PLUG AND RECEPTACLE
•TWIST LOCKING PLUG AND CONNECTOR helps avoid cords coming undone and lock tightly for secure use

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$50.26

$64.98

-23%

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POWGRN

POWGRN 10Feet 30 Amp Generator Extension Cord 4 Prong,Heavy Duty NEMA L14-30P/L14-30R,125/250V 7500W,Green 10 Gauge STW Twist Locking Generator to House Power Cords with Cord Organizer,ETL Listed

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Can be Used in Any Ccenario: This heavy duty generator extension cord with multiple length options up to 100 feet; in case of power outages or emergencies; you can use the power cord to connect a portable generator and manual transfer switch to power houses; rvs and other outdoor camping equipment
•Weatherproof and Durable: Generator extension cable is etl certified with 30 amp 4 prong heavy duty generator cable; stw 125/250v; NEMA L14-30P to L14-30R; with excellent weather resistance and IP65 waterproof rating; it is suitable for use in all weather conditions; including sunlight; rain; and low temperatures (-40°C); it is heat-resistant; flame-retardant; corrosion-resistant and abrasion-resistant to ensure more safety and reliability
•Twist-lock Design & Stable Power Supply: The twist-lock plug prevents the cord from coming off due to external force in all kinds of harsh weather conditions; preventing power interruption; the plug and receptacle are designed for easy gripping and clamping; ensuring that the plug can be bent at any angle without breaking
•Matching Cord Organizer & Easy Storage: L14-30 generator power cord 10ft sheath is made of sturdy and flexible material; easy to bend and store; and can adapt to different layouts and environments in addition; an adjustable cord organizer is included to neatly coil and hang the cord; making storage and transportation easier and preventing tangles and confusion
•ETL Certification and Quality Assurance: We will check each product before shipment; your satisfaction is our utmost pursuit

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$24.99

$35.99

-31%

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POWGRN

POWGRN 20 FT 30 Amp Generator Extension Cord 4 Prong, Heavy Duty NEMA L14-30P to NEMA L14-30R, 125/250V 7500W, Green 10 Gauge STW Twist Locking House Power Cord, 20 Feet Generator Cable

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Can be Used in Any Ccenario: This heavy duty generator extension cord with multiple length options up to 100 feet; in case of power outages or emergencies; you can use the power cord to connect a portable generator and manual transfer switch to power houses; rvs and other outdoor camping equipment
•Weatherproof and Durable: Generator extension cable is etl certified with 30 amp 4 prong heavy duty generator cable; stw 125/250v; NEMA L14-30P to L14-30R; with excellent weather resistance and IP65 waterproof rating; it is suitable for use in all weather conditions; including sunlight; rain; and low temperatures (-40°C); it is heat-resistant; flame-retardant; corrosion-resistant and abrasion-resistant to ensure more safety and reliability
•Twist-lock Design & Stable Power Supply: The twist-lock plug prevents the cord from coming off due to external force in all kinds of harsh weather conditions; preventing power interruption; the plug and receptacle are designed for easy gripping and clamping; ensuring that the plug can be bent at any angle without breaking
•Matching Cord Organizer & Easy Storage: L14-30 generator power cord 20ft sheath is made of sturdy and flexible material; easy to bend and store; and can adapt to different layouts and environments in addition; an adjustable cord organizer is included to neatly coil and hang the cord; making storage and transportation easier and preventing tangles and confusion
•ETL Certification and Quality Assurance: We will check each product before shipment; your satisfaction is our utmost pursuit

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$39.99

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POWGRN

POWGRN 15Feet 30 Amp Generator Extension Cord 4 Prong,Heavy Duty NEMA L14-30P/L14-30R,125/250V 7500W,Green 10 Gauge STW Twist Locking Generator to House Power Cords with Cord Organizer,ETL Listed

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Can be Used in Any Ccenario: This heavy duty generator extension cord with multiple length options up to 100 feet; in case of power outages or emergencies; you can use the power cord to connect a portable generator and manual transfer switch to power houses; rvs and other outdoor camping equipment
•Weatherproof and Durable: Generator extension cable is etl certified with 30 amp 4 prong heavy duty generator cable; stw 125/250v; NEMA L14-30P to L14-30R; with excellent weather resistance and IP65 waterproof rating; it is suitable for use in all weather conditions; including sunlight; rain; and low temperatures (-40°C); it is heat-resistant; flame-retardant; corrosion-resistant and abrasion-resistant to ensure more safety and reliability
•Twist-lock Design & Stable Power Supply: The twist-lock plug prevents the cord from coming off due to external force in all kinds of harsh weather conditions; preventing power interruption; the plug and receptacle are designed for easy gripping and clamping; ensuring that the plug can be bent at any angle without breaking
•Matching Cord Organizer & Easy Storage: L14-30 generator power cord 15ft sheath is made of sturdy and flexible material; easy to bend and store; and can adapt to different layouts and environments in addition; an adjustable cord organizer is included to neatly coil and hang the cord; making storage and transportation easier and preventing tangles and confusion
•ETL Certification and Quality Assurance: We will check each product before shipment; your satisfaction is our utmost pursuit

View offer on:

$23.09

$32.99

-30%

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