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  • WALSIO front view of 4-pin 5-wire harness showing full assembly and fitWALSIO close-up of Y-split forward placement for easier axle routing
    WALSIO

    WALSIO 26FT 4-Pin 5-Wire Trailer Wiring Harness Kit — 26' Y-Style, 18AWG Copper, Weatherproof

    WALSIO 26FT 4-pin 5-wire trailer wiring harness kit is a ready-to-install Y-style cable assembly that gives you full 4-way functions plus a separate ground, built to fit trailers up to and over 80 inches wide. This harness combines a long run length, weatherproof materials...
    $69.21
    $69.21
  • WALSIO front flat plug view showing easy connection and weather protectionWALSIO Y-harness split near front preventing axle-crossing for cleaner routing
    WALSIO

    WALSIO 26ft Trailer Wiring Harness 4‑Pin 5‑Wire Y‑Harness with PVC Tube, 18 AWG Copper, Weatherproof

    WALSIO's 26ft 4-pin 5-wire trailer wiring harness is a weatherproof, Y-shaped replacement harness that uses 18 AWG copper conductors and a PVC protective tube for reliable trailer lighting connections. Whether you're rewiring a boat trailer, horse trailer, ATV trailer or swapping out a worn...
    $60.86
    $60.86
  • WALSIO front view 4-way flat plug showing easy vehicle connection benefitWALSIO Y-harness split detail illustrating simpler axle-safe routing benefit
    WALSIO

    WALSIO 32ft Trailer Wiring Harness 4-Pin 5-Wire — Black Y‑Split Weatherproof, SAE J1128

    WALSIO's 32-foot 4-pin 5-wire trailer wiring harness is a ready-to-install cable kit that provides full four-way trailer lighting plus a dedicated ground in a weatherproof, color-coded assembly. This harness is made for owners who need a durable, long-reach replacement or factory-style wiring upgrade for...
    $81.73
    $81.73
  • WALSIO front 4-pin connector showing plug and durable fit for reliable towingWALSIO Y-harness split design routing to both trailer sides with tidy installation
    WALSIO

    WALSIO 4-Pin 5-Wire Trailer Wiring Harness — 22ft Y-Harness with Waterproof Plug

    WALSIO's 4 Pin 5 Wire Trailer Wiring Harness is a 22-foot, Y-shaped 4-way flat connector kit with five color-coded wires, reinforced jacket, and waterproof plug that simplifies trailer rewiring and replaces worn 4‑pin systems. Whether you’re wiring a boat trailer, ATV trailer, horse trailer,...
    $58.77
    $58.77

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