Before choosing a replacement RV power cord, decide whether you need a new male pedestal plug, a female cord connector, a locking vehicle-end connector, or the complete cord. RV cords with similar amperage ratings may terminate in different ways. This parts-reference guide compares practical examples from AP Products, Valterra and Marinco and explains why 30A extension, detachable and hardwired cords are not interchangeable.

Three cord configurations that solve different problems

Extension cord

Pedestal or approved supplyTT-30R receptacle for a 30A RV cord
Male TT-30P plug
25-ft extension
Valterra A10-3025E
Female TT-30R socketAccepts the next matching male plug; not a locking inlet connector

Detachable RV cord

Matching campground supply30A TT-30R
Male TT-30P plug
25-ft cord
Valterra A10-3025ED
Female L5-30R twist-lock endFor the correct mating 30A RV inlet

Hardwired RV cord

Matching campground supply30A TT-30R
Male TT-30P plug
25-ft cord
Valterra A10-3025END
Permanent RV electrical connectionNo female RV-side cord receptacle
Original functional connector map, not a wiring diagram or recommendation to alter any energized cord. Other models and connectors use different contact patterns, ratings and cable requirements.
Matching the amperage is only the beginning. TT-30 (30A 125V), 14-50 (50A 125/250V), L5-30 RV locking and 50A locking vehicle inlets use different physical connections. The plug at the pedestal and connector at the RV may not have the same NEMA designation.

30A male and female replacement cord ends

AP Products 16-00580 and 16-00581 are separate male and female 30A plug ends. Valterra A10-P30VP is a 30A male plug with a grip handle, while A10-R30VP is its separately catalogued female connector. Select using the full original pattern and the cord manufacturer's requirements, not the black housing or handle alone.

50A replacement cord ends

AP Products 16-00578 and 16-00579 are separate male and female 50A cord-end records. Valterra A10-P50VP and A10-R50VP are likewise male and female replacement parts. A 50A plug or receptacle must match the four-wire supply arrangement and its listed mating configuration; do not assume it is interchangeable with a 50A locking RV connector.

Complete cord: extension, detachable or hardwired?

Valterra A10-3025E is a 25-ft 30A extension with TT-30P and TT-30R ends. A10-3025ED is the 25-ft 30A detachable cord with TT-30P and L5-30R ends. A10-3025END is a 25-ft 30A cord with a TT-30P source plug and a vehicle-side end intended for permanent installation. These cord types are not substitutes without confirming the RV's original connection.

Before deciding to replace a damaged molded end, check the whole cable, outer jacket, strain relief, mating inlet and signs of heating. Replacing a plug alone cannot correct a loose or heat-damaged inlet contact. Have an appropriate technician inspect the assembly.

RV-side locking connectors and rings

Valterra A10-30FDTVP and A10-50FDTVP are separately catalogued 30A and 50A twist-locking RV cord connectors with rings. Marinco 6364CRV belongs to a traditional 50A locking connector family. Choose the exact mating profile and retaining hardware; the electrical rating alone does not make a SmartPlug, a Marinco connector and another twist-lock connector physically interchangeable.

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