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Speedwow 50 Amp RV Extension Cord with Generator Inlet Box

Speedwow 50 Amp RV Extension Cord with Generator Inlet Box

Last price we saw

$209.99at Walmart, last seen Oct 31

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Our take on the Speedwow 50 Amp RV Extension Cord with Generator Inlet Box

The Speedwow 50 Amp RV Extension Cord is a 40 ft, 4-prong power cord bundled with a generator inlet box, built for hooking a 50A RV or transfer setup to a generator or pedestal. It carries up to 50 amps at 125 V, which suits the NEMA 14-50 style connection many large RVs and generator inlets use. The 40 ft run gives useful reach from a generator to a rig or inlet without an extra cord. No current price was provided, so compare live store prices before buying.

Best for50A RV owners parking away from the pedestalGenerator-to-inlet hookups for a house or RVCampers who want one long cord instead of two short onesOwners replacing a worn 50A cord and inlet box together
Pros
  • 40 ft length covers most generator-to-RV distances
  • 50A rating matches large RVs and many generator inlets
  • 4-prong connector fits standard 50A RV plugs
  • Inlet box included, so no separate purchase for the wall side
  • Heavy-duty jacket is built for outdoor use
Cons
  • 125 V rating is below the 120/240 V split many 50A setups expect
  • 40 ft of 50A cord is heavy and awkward to coil
  • No price data to confirm it beats comparable cords
  • Inlet box fit depends on your wall cutout and wiring

Speedwow 50 Amp RV Extension Cord with Generator Inlet Box prices at every store

  • WalmartCheck price at Walmart

Speedwow 50 Amp RV Extension Cord with Generator Inlet Box price history

Lowest price we've seen: $209.99 on Oct 31 at Walmart. Tracked across 1 store since Oct 31.

Specifications

Number Of Prongs
4 Prongs
Maximum Amperage
50 Amps
Cord Length
40 ft
Max Voltage
125 V

Questions and answers

Is this cord safe for a 50A RV?
It is rated for 50 amps, so it matches a 50A RV service. Confirm the plug type on your rig and pedestal is the 4-prong 50A style before you buy.
Does the 125 V rating matter?
Yes. Many 50A RV and generator setups run 120/240 V split service. Check that your inlet and generator expect the same voltage this cord is rated for.
What is the generator inlet box for?
It gives you a fixed wall connection point for the cord, typically feeding a transfer switch or RV panel. It needs to be wired in, so plan for an electrician if you are not comfortable with that.
Is 40 ft long enough?
For most driveways and campsites, yes. Measure from your generator or pedestal to the inlet first; a 40 ft cord that is too short is useless, and extra length adds weight.
When is the best time to buy?
RV power cords tend to dip outside peak camping season, in late fall and winter. Check the price history before buying.

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