We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
CARROFIX 4-pole flat trailer wiring harness kit with converter box and dust cover

CARROFIX

CARROFIX Vehicle Wiring Harness Kit 4-Pole Flat Connector Subaru

SKU CH-KJSK-1GM0A

Custom-fit 4-pin flat trailer wiring harness with 4.8 ft lead plugs directly into factory connectors on select 2009-2019 Subaru models for quick, no-splice installation

  • Vehicle TypeSubaru
  • FitmentSubaru wiring harness
  • Custom-fit harness plugs directly into factory wiring, no cutting or splicing required
  • 8 ft harness reaches rear cargo area for convenient trailer connection
  • Surface-mount technology and dust cover protect connector from outdoor elements
  • Fits 2009-2019 Forester, 2010-2019 Outback, 2019 Ascent, 2013-2015 XV Crosstrek, 2016-2019 Crosstrek
  • Single OEM-compatible plug provides instant standard 4-way flat trailer connection

Vehicle-Specific Wiring Kit

The CARROFIX harness kit provides a custom 4-pole flat connector for select Subaru models including 2009-2019 Forester, 2010-2019 Outback, 2019 Ascent and 2013-2019 Crosstrek non-hybrid variants. It plugs directly into the factory wiring behind the rear cargo trim without any cutting or splicing required. The 4.8ft lead terminates in a standard 4-way flat trailer plug with a protective dust cover.

Plug-and-Play Reliability

Surface-mount technology on the converter box delivers consistent signal transfer for trailer lighting functions during extended towing use. The sealed connector and included dust cover protect the contacts from moisture and road debris when the trailer is disconnected. The harness secures to the vehicle frame with supplied cable ties to prevent wire fatigue from vibration over long distances.

Pre-Installation Checks

Verify your Subaru model and year match the listed fitment range before ordering. Confirm the factory wiring harness is accessible behind the interior cargo panel and has not been modified by previous aftermarket installations. Ensure the rear cargo area can accommodate the stowed connector and that the converter box mounting location on the frame is clear of obstructions. This kit does not support vehicles requiring 5-pin, 6-pin or 7-pin trailer connections.

Highlights

  • Custom-fit harness plugs directly into factory wiring, no cutting or splicing required
  • 8 ft harness reaches rear cargo area for convenient trailer connection
  • Surface-mount technology and dust cover protect connector from outdoor elements
  • Fits 2009-2019 Forester, 2010-2019 Outback, 2019 Ascent, 2013-2015 XV Crosstrek, 2016-2019 Crosstrek
  • Single OEM-compatible plug provides instant standard 4-way flat trailer connection

Specifications

Vehicle TypeSubaru
FitmentSubaru wiring harness

Questions about this item

How much electrical load does the converter box add when the trailer lights are on all day?

The kit draws only the current needed by the trailer lamps through the vehicle's existing circuits; no extra power source is required.

Which factory connector must already be present behind the cargo trim for this harness to plug in?

The T-connector mates with the vehicle's original wiring harness located behind the rear cargo-area trim panel.

Will the 4.8 ft lead reach the hitch on a 2019 Subaru Ascent without stretching?

The 4.8 ft wire harness is designed to route from the cargo-area plug to a stowed position near the hitch on all listed models.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.