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Black plastic trailer connector housing with 7 round and 5 flat pins, hinged lid open 180 degrees, powder-coated bracket

Bluarc Electronics

Bluarc Electronics Multi-Tow 7 Blade 5 Flat Trailer Connector 40999

SKU CH-SPMF-3SRZ5

Combines 7-blade and 5-flat connectors for RV power, braking and trailer lights with a weatherproof 180-degree lid

  • Multi-tow versatility from a single connector with 7 blade and 5 flat options
  • Plug-and-play installation using heavy-duty OEM connectors for an exact fit
  • Maximum weatherproofing from a lid that opens 180 degrees with an oversized hinge
  • Corrosion-resistant build with stainless steel hardware and nickel-coated weatherproof pins
  • Five-year warranty backed by included mounting bracket and all installation materials

Versatile Towing Connector

The Bluarc Electronics Multi-Tow 7 Blade 5 Flat Trailer Connector 40999 combines a seven-blade round plug with a five-flat connector in one heavy-duty unit. It is designed for RV owners and trailer users who need both RV power and braking functions plus standard trailer lighting from a single receiver.

Weatherproof Build and Mounting

OEM-style connectors and nickel-coated pins resist corrosion while a lid opens 180 degrees on an oversized hinge for lasting weather protection. The kit includes stainless-steel hardware and a powder-coated mounting bracket for a secure, plug-and-play installation on most vehicles.

Reliable Power Delivery

The connector handles RV seven-pin power and braking circuits alongside five-flat tail-light and turn-signal loads without active cooling. Solid pin construction and sealed interfaces maintain steady current flow and low resistance during normal towing operation.

How it compares

Measured against everything we stock in Trailer Locks, Brakes & Accessories, at today’s prices. Recalculated every night.

Price $37.99
Cheaper than about 79% of the 51 comparable items (median $176.99).

Specifications

Product
Brand nameBluarc Electronics

Questions about this item

What does the 7-blade and 5-flat interface combination actually power on a trailer?

The 7-blade side supplies power and braking for RVs, while the 5-flat side runs tail lights and turn signals on a standard trailer.

What mounting hardware and bracket come in the kit for installation?

The kit includes a powder-coated mounting bracket and stainless-steel hardware for bolting the connector to the vehicle.

How is the connector installed and which step is most often missed?

Bolt the supplied bracket to the vehicle, plug the OEM connectors into the factory harness, then snap the lid shut; the step most often missed is tightening the stainless-steel bolts to the specified torque so the 180-degree lid seals correctly.

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