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
Curt Manufacturing 56621 7-Way RV blade harness coiled in packaging

Curt Manufacturing

Curt Manufacturing 56621 Replacement 7-Way RV Blade Harness 6 ft industrial wire

SKU CH-PS9W-D60RZ

Replacement 7-way RV blade harness with six-foot length for trailer wiring connections

  • TypeTrailer, Plow & Towing Equipment
  • Replacement 7-way RV blade harness for trailer wiring
  • 6 ft length provides connection reach for towing setups
  • CURT brand supplies trailer, plow and towing equipment
  • New condition ensures unused, factory-fresh component
  • California Proposition 65 warnings note chemical exposure risks

Curt 56621 7-Way RV Blade Harness

This replacement harness provides a standard seven-pin RV blade connection for towing applications. The six-foot length suits typical trailer wiring runs between vehicle and trailer. It is built for automotive and industrial electrical use.

California Proposition 65 compliance

The product carries warnings for chemicals known to the State of California to cause cancer and reproductive harm. These notices are required for sale in California and do not alter the harness function. Normal handling during installation poses no additional risk beyond standard wiring work.

Direct manufacturer shipment

Orders of seventy-five dollars or more qualify for free shipping from the manufacturer. The harness arrives ready to install without extra connectors or software. Buyers needing a different pin count or longer cable must source a separate part.

Highlights

  • Replacement 7-way RV blade harness for trailer wiring
  • 6 ft length provides connection reach for towing setups
  • CURT brand supplies trailer, plow and towing equipment
  • New condition ensures unused, factory-fresh component
  • California Proposition 65 warnings note chemical exposure risks

Specifications

BrandCURT
TypeTrailer, Plow & Towing Equipment

Questions about this item

How do I install the 7-way RV blade harness and which wiring step causes the most issues?

Route the 6 ft harness from the tow vehicle to the trailer plug, match each wire to the correct blade terminal using the standard RV colour code, and secure the ground to clean bare metal; the step most often missed is a solid chassis ground connection.

What maintenance or replacement will the harness need over time?

Inspect the blade contacts and wire insulation before each season; replace the harness if the blades are corroded, bent, or the jacket shows cracking from UV exposure.

What limit appears first during sustained towing use?

The 6 ft length sets the maximum reach between vehicle and trailer; if the gap exceeds that distance the harness cannot connect without an extension.

Also in this aisle

People compared these

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