Semi-Truck Safety, Air & Electrical Universal

Semi-Truck Safety, Air & Electrical Universal

Semi-Truck Safety, Air & Electrical Universal

Semi-Truck Safety, Air & Electrical parts from 4 State Trucks can help keep your truck on the road. From air compressors and valves to fuses and lights, find the parts you need for air system maintenance and electrical repairs. Explore our selection to help maintain your truck's performance.
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  • Vehicle-Side 7-Way Round Connector Socket Connects Tail, Brake, Reverse, Turn Signals, Aux. Power
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    Vehicle-Side 7-Way Round Connector Socket Connects Tail, Brake, Reverse, Turn Signals, Aux. Power

    CURT MANUFACTURING

    $21.99
    Vehicle-Side 7-Way Round Connector Socket W/ Spring-Loaded Dust Cover * High Quality Connector Socket* Splices Into Vehicle Wiring To Provide A Connection For A Trailer Plug * 7-Way Connects Tail, Brake, Reverse, Turn Signals, Brakes And Auxiliary Power...
    $21.99
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    $21.99
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  • 2-To-3 Wire Tail Light Converter Kit For A Vehicle Being Dinghy Towed
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    2-To-3 Wire Tail Light Converter Kit For A Vehicle Being Dinghy Towed

    CURT MANUFACTURING

    $38.99
    2-To-3 Wire Tail Light Converter Kit * High Quality Taillight Converter* Color Coded Wires* Converts A 2-Wire Electrical System To 3-Wire * Intended For A Vehicle Being Dinghy Towed Behind An RV Or Other Vehicle * Constructed With SMT Circuitry For...
    $38.99
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    $38.99
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  • Vehicle-Side 6-Way Round Connector Socket W/ Dust Cover Connects Tail, Brake, Turn Signal, Auxiliary Power
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    Vehicle-Side 6-Way Round Connector Socket W/ Dust Cover Connects Tail, Brake, Turn Signal, Auxiliary Power

    CURT MANUFACTURING

    $6.59
    Vehicle-Side 6-Way Round Connector Socket W/ Dust Cover * High Quality Connector Socket* Made Of Plastic* Color: Black* Splices Into Vehicle Wiring To Provide A Connection For A Trailer Plug * 6-Way Connects Tail, Brake, Turn Signals, Electric Brakes And...
    $6.59
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    $6.59
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  • Zinc-Plated Steel 7-Way RV Blade Connector Mounting Bracket
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    Zinc-Plated Steel 7-Way RV Blade Connector Mounting Bracket

    CURT MANUFACTURING

    $1.57
    7-Way RV Blade Connector Mounting Bracket * High Quality Connector Mounting Bracket* Made Of Steel* Securely Mounts 7-Way RV Blade Connector Sockets * Allows For Attachment To The Vehicle Or Trailer Hitch * Multiple Screw Holes Offer Flexible Mounting...
    $1.57
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    $1.57
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  • Non-Powered 3-To-2 Wire Tail Light Converter Kit For Trailer Wiring
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    Non-Powered 3-To-2 Wire Tail Light Converter Kit For Trailer Wiring

    CURT MANUFACTURING

    $39.99
    Non-Powered 3-To-2 Wire Tail Light Converter Kit * High Quality Taillight Converter* Color Coded Wires* Converts 3-Wire Vehicle Electrical System To Standard 2-Wire Trailer Wiring * 4-Way Flat Output Connects Tail Lights, Brake Lights And Turn Signals *...
    $39.99
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    $39.99
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  • 6-Way Square Connector Plug, Socket W/ 12 Inch Wires Connects Tail, Brake, Turn Signal, Aux. Power
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    6-Way Square Connector Plug, Socket W/ 12 Inch Wires Connects Tail, Brake, Turn Signal, Aux. Power

    CURT MANUFACTURING

    $10.99
    6-Way Square Connector Plug, Socket W/ 12 Inch Color-Coded Wires * High Quality Connector Plug And Socket* Color Coded Wires* Splices Into Existing Wiring To Provide Connections For Both Vehicle And Trailer * Looped Wire Can Also Be Used As A Wire...
    $10.99
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    $10.99
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  • Gloss Black 4-Way Flat Connector Mounting Bracket
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    Gloss Black 4-Way Flat Connector Mounting Bracket

    CURT MANUFACTURING

    $4.09
    4-Way Flat Connector Mounting Bracket * High Quality Connector Mounting Bracket* Made Of Steel* Color: Black* Securely Mounts 4-Way Flat Connector Sockets * Allows For Attachment To The Vehicle Or Trailer Hitch * Constructed From High-Strength Steel *...
    $4.09
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    $4.09
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  • Gloss Black 7-Way RV Blade Connector Mounting Bracket
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    Gloss Black 7-Way RV Blade Connector Mounting Bracket

    CURT MANUFACTURING

    $2.69
    7-Way RV Blade Connector Mounting Bracket * High Quality Connector Mounting Bracket* Made Of Steel* Color: Black* Securely Mounts 7-Way RV Blade Connector Sockets * Allows For Attachment To The Vehicle Or Trailer Hitch * Multiple Screw Holes Offer...
    $2.69
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    $2.69
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  • 7-Way RV Blade Connector Plug, Socket W/ Hardware Connects Tail, Brake, Reverse, Turn Signals, Aux. Power
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    7-Way RV Blade Connector Plug, Socket W/ Hardware Connects Tail, Brake, Reverse, Turn Signals, Aux. Power

    CURT MANUFACTURING

    $23.79
    7-Way RV Blade Connector Plug & Socket W/ Hardware * High Quality RV Blade Connector Plug And Socket* Made Of Plastic* Splices Into Existing Wiring To Provide Connections For Both Vehicle And Trailer * 7-Way Connects Tail, Brake, Reverse, Turn Signals,...
    $23.79
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    $23.79
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  • Vehicle-Side 6-Way Round Connector Socket W/ Spring-Loaded Dust Cover
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    Vehicle-Side 6-Way Round Connector Socket W/ Spring-Loaded Dust Cover

    CURT MANUFACTURING

    $11.89
    Diecast Metal Vehicle-Side 6-Way Round Connector Socket W/ Concealed Terminals * High Quality Connector Socket* Splices Into Vehicle Wiring To Provide A Connection For A Trailer Plug * 6-Way Connects Tail, Brake, Turn Signals, Electric Brakes And...
    $11.89
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    $11.89
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  • 4-Way Flat Connector Socket W/ 60 Inch 16-G Color-Coded Wires
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    4-Way Flat Connector Socket W/ 60 Inch 16-G Color-Coded Wires

    CURT MANUFACTURING

    $7.09
    4-Way Flat Connector Socket Connects Tail, Brake & Turn Signal Lights * High Quality Connector Socket * Made Of Rubber* Color Coded Wires* Splices Into Vehicle Wiring To Provide A Connection For A Trailer Plug * 4-Way Flat Output Connects Tail Lights,...
    $7.09
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    $7.09
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  • 4-Way Flat Connector Plug, Socket W/ 12 Inch 16-G Color Coded Wires
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    4-Way Flat Connector Plug, Socket W/ 12 Inch 16-G Color Coded Wires

    CURT MANUFACTURING

    $5.69
    4-Way Flat Connector Plug & Socket W/ 12 Inch 16-G Color Coded Wires * High Quality Connector Plug And Socket* Made Of Rubber* Color Coded Wires* Splices Into Existing Wiring To Provide Connections For Both Vehicle And Trailer * Looped Wire Can Also Be...
    $5.69
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    $5.69
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