SKU: 42675856396

CURT 57674 - Dual-Output Electrical Adapter with Tester (Adds 7-Way RV Blade to 4-Way Flat)

Sale price$36.90 Regular price$41.00
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Ships within 48 hours · Estimated delivery Sep 25 - Sep 30

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Description

CURT 57674 - Dual-Output Electrical Adapter with Tester (Adds 7-Way RV Blade to 4-Way Flat)There are several different types of connectors used to supply power from a tow vehicle's electrical system to a trailer's wiring system. Some trailers only need the bare essentials running lights, brake lights and turn signals while others require a connection for reverse lights, electric brakes and auxiliary power. With connectors ranging from simple to complex, it may be the case that the connection between your vehicle and your trailer is not a

There are several different types of connectors used to supply power from a tow vehicle's electrical system to a trailer's wiring system. Some trailers only need the bare essentials -- running lights, brake lights and turn signals -- while others require a connection for reverse lights, electric brakes and auxiliary power. With connectors ranging from simple to complex, it may be the case that the connection between your vehicle and your trailer is not a perfect match. For example, your truck may be equipped with a 6-way round socket, but your trailer may have a 4-way flat plug. For this very common problem, CURT offers a quick and simple solution in the form of an electrical adapter. An adapter is an electrical device that allows a connection to be made between a mismatched trailer plug and vehicle socket. It easily plugs in your vehicle's electrical socket and usually requires no additional wiring. CURT offers an array of adapters to accommodate most types of plugs and sockets, including 4-way flat, 4-way round, 5-way flat, 6-way round, 7-way RV blades and more. This special dual-output electrical adapter is actually designed to adapt a 4-way flat vehicle socket to fit multiple trailer plugs, including a 4-way flat and a 7-way RV blade connector. Some manual wiring is required. This multipurpose socket also comes with an integrated electrical tester, dust covers, a mounting bracket and all necessary mounting hardware for a complete installation. All CURT wiring and electrical products come with a one-year limited warranty to give you the assurance you need to tow with confidence.

Additional Attributes:

  • GTIN: 612314047246
  • Product Weight - XA: 0.000
  • Finish - XA: N/A
  • Retail Width - XA: 8.000
  • Shipping Weight - XA: 1.100
  • Item Width - XA: 0.000
  • Tariff 301 - XA: No
  • Box Width in Inches - XA: 4
  • Rate Class - XA: 70.0
  • Item Length - XA: 0.000
  • Item Height - XA: 0.000
  • Retail Height - XA: 4.000
  • Warranty: One-Year Limited Warranty
  • Class ID: 0
  • Box Length in Inches - XA: 7
  • Parcel Allowed - XA: Yes
  • Item Class - XA: OBS
  • Box Height in Inches - XA: 2
  • Retail Length - XA: 9.000

Packaging:

  • Quantity of Each: 1
  • Package UOM: EA
  • Dimension: 9.000 x 8.000 x 4.000 inches
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42675856396

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4.1 ★★★★★
Based on 9 reviews
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Product Reviews
C
Verified Purchase
Charles Szatkowski
Chelsea, US
★★★★★ 5
Makes the job easy
Size: 88.5mm x 16
Worked well for removing and installing the oil filter housing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
L
Verified Purchase
Lynn Carbin
Boise, US
★★★★★ 5
Great tool
Size: 88.5mm x 16
Fit perfectly. Great tool. Made changing oil fast and easy .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 28, 2025
H
Verified Purchase
Humble Servant
Lowell, US
★★★★★ 4
very good tool fits PL14006 just right
Size: 76mm x 14
This fit my PL14006 oil filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
P
Verified Purchase
Person of Knowledge
Omaha, US
★★★★★ 5
The Perfect Tool - Life is Short So Just Buy It.
Size: 88mm x 15
So. Life is too short to struggle with little demons and other inconveniences. I change oil in all my cars, trucks, and SUVs. One of my cars is a V6 Hyundai and the filter cartridge is inside a housing that is sometimes more than a tad inconvenient to loosen and screw back in place. My regular filter removal tools including strap style as well as a three arm gripper type just did not perform very well. I saw this thing, ordered it, and man...it is perfect. The metal top allows a wrench ( spanner) or a socket wrench to be used. I have a fancy Snapon torque wrench which I can also use just to be fancy. In any case removing and re-securing the filter housing on the Hyundai V6 is now a breeze. The cap wrench itself is solid and very well constructed Five stars and count me in as impressed. Well done CTA Tools !!!
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Reviewed in the United States on February 6, 2026
L
Verified Purchase
Lisa
Lake Worth, US
★★★★★ 5
Good fit and easy filter removal
Size: 88.5mm x 16
Purchased this for my 2022 Volvo XC60 PHEV. Used up all my 'free' dealer oil changes and not ready to drop hundreds on a simple operation. Removal of the oil filter housing on this car would be nearly impossible without this tool due to its location. With it the process was simple. On a side note, the dealership 'pros' stripped every one of the plastic splash guard nuts. Obviously in a hurry with a power tool. They also did not change out the smaller o ring included with the filter. It's a pain to remove and mine was hardened and likely original. Anyway, placed this tool in drawer with the rest of my oil wrench collection.
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Reviewed in the United States on May 27, 2026

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