An RV power cord can have a familiar-looking plug at the campground pedestal and a completely different connector at the vehicle. To replace the correct part, identify the NEMA configuration, the electrical rating and whether you need a male plug or female receptacle. This guide separates the everyday 5-15 connection, the RV-specific 30A TT-30 and the four-contact 50A 14-50, then links to exact NewRVParts replacement parts.
Three common pedestal-side plug types
Household-style 15A
RV 30A straight blade
RV 50A four-contact
Identify plug versus receptacle
| Configuration | Rated supply | Male end | Female end |
|---|---|---|---|
| 5-15 | 15A, 125V | 5-15P household-style plug | 5-15R matching grounded outlet |
| TT-30 | 30A, 125V | TT-30P three-contact RV plug | TT-30R RV receptacle |
| 14-50 | 50A, 125/250V | 14-50P four-contact plug | 14-50R four-contact receptacle |
| RV-side locking | Model-dependent 30A or 50A | Matching vehicle inlet | Locking cord end (Marinco or SmartPlug family), not a TT-30R/14-50R by default |
A replacement male plug attaches to the source-facing end of an appropriate cord. A replacement female receptacle or locking connector is a different component. The correct current rating does not guarantee physical interchangeability.
30A TT-30 male plug and female receptacle replacements
Camco 55245 is a standard PowerGrip male plug, while 55283 is the compact Mini version. Southwire 65040201 and Hughes 30APLUG are other model-specific TT-30P replacements. For a female straight-blade receptacle rather than the male plug, compare Camco 55343.
50A 14-50 replacements
Camco 55252 and Southwire 95433308 are male 14-50P replacement plug heads. Camco 55353 is a separate female receptacle rated 50A, 125/250V. Check its actual mating face, wire accommodation and enclosure type before choosing it.
Adapters do not change the available electrical service
Camco 55138 adapts 5-15P to TT-30R for appropriate reduced-load applications. The 55133 presents a TT-30P source connection and a 14-50R output, while the 55135 presents a 14-50P source connection and a TT-30R output. These are different electrical connections with different source limits; none is a voltage converter, circuit breaker or surge protector.
Do you need the locking RV-side cord end instead?
For a detachable inlet with a locking ring, compare the exact inlet model before selecting a connector. A Marinco 305CRV.VPK is a traditional 30A locking RV-side cord connector, not a 30A TT-30P pedestal plug. SmartPlug uses a separate proprietary side-locking arrangement.
Related shore-power parts guides
For the connector standards, see the manufacturer specifications for Leviton TT-30R and Leviton 14-50R. Use product-specific Camco and Southwire documentation for individual plug replacements.