Sea-Dog 426142-1
A complete two-conductor deck outlet with keyed unequal pins, gasket and water-resistant cap; mounts with two #6 round-head screws (not included).
Sea-Dog Polarized Marine Connectors: Pins, Amps & Fit
Sea-Dog's polarized electrical connections prevent mating in the wrong orientation, but they serve different installations. Some mount through a deck, another is a molded four-pin plug, and a two-wire SAE connector has its own lead arrangement. Compare the manufacturer number and circuit current rather than treating all polarized connectors as substitutes.
Compare polarized marine connector formats
The table lists exact Sea-Dog part numbers and manufacturer specifications. On narrow screens, scroll the table sideways to see every column.
| MPN | Device / connection | Conductors | Rating | Wire termination |
|---|---|---|---|---|
| 426142-1 | Complete polarized deck outlet | 2 | 3A; 12/24V DC | 14 AWG maximum; set-screw |
| 426164-1 | Polarized molded plug connector | 4 | 5A; 12/24V DC | 14 AWG maximum; set-screw |
| 426234-1 | Polarized four-conductor deck outlet | 4 | 5A; 12/24V DC | 14 AWG maximum; set-screw |
| 426880-1 | SAE polarized two-wire plug/socket | 2 | 20A; 12/24V DC | 16 AWG AWM; 12-in leads |
Pin count is only part of the match. The 426164-1 and 426234-1 both use four conductors and are 5A/12–24V DC, but one is a molded connector while the other is a deck outlet. The 426142-1 is a 3A, two-conductor complete deck outlet; 426880-1 is a 20A SAE-style two-wire plug/socket. Their mating systems are not assumed interchangeable.
Manufacturer drawing measurements: 426142-1 A = 1 7/16 in, B = 1⅜ in; 426164-1 A = 1¼ in, B = 1 3/16 in; 426234-1 A = 2 1/16 in, B = 1⅞ in. The SAE 426880-1 is A = 1 1/16 in, B = ⅝ in, C = 5/16 in. Check the accompanying drawing to see which feature each letter refers to.
See the manufacturer technical drawings: Two-conductor deck outlet and Molded four-pin connector and Four-conductor deck outlet and SAE two-wire connector.
How to check the correct replacement
- Confirm the actual connector system and mating plug rather than choosing by the number of pins alone.
- Choose the correct 12/24V DC amp rating and observe the manufacturer's maximum conductor size.
- For deck installation, compare the gasket, cap and #6 mounting screw arrangement with the existing hole.
- Use the manufacturer A/B/C drawings to verify mounting geometry before cutting the deck.
- Isolate the circuit, follow marine wiring requirements and check polarity before restoring power.
Find matching Sea-Dog hardware
All exact products are ordered online through NewRVParts and dispatched from supplier warehouses. In-person viewing and pickup are not offered.
Sea-Dog 426164-1
Four unequally sized polarized pins in a molded connector. Other pin-count versions exist but are separate MPNs.
Sea-Dog 426234-1
Four-conductor deck outlet with a capped body, not the same mounting arrangement as molded 426164-1.
Sea-Dog 426880-1
Weather-resistant two-wire SAE plug and socket with tinned lead wires; not interchangeable with the 3A two-pin deck outlet.
Related marine electrical references
For a separate 12V accessory receptacle or USB charging outlet, see our Sea-Dog 12V socket and USB charger guide. A polarized 3A, 5A or SAE connector is not a replacement for a higher-current power socket unless the full mating and circuit specifications match.
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