Semi-Truck Safety Universal
Check out our top-notch semi-truck universal safety products at 4 State Trucks. From durable placard holders to reliable reflective tapes and sturdy air hoses, we've got your safety covered. Need a new coupler or a pogo stick? We have those too. Equip your rig with the best gear and stay safe on the road!
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On Sale
Trailer Plug Adapter 6 Pole Round Pin Type M To 4 Way Flat FM
AFTERMARKET
Now: $2.34Was: $10.196 Pole Round Pin Type M To 4 Way Flat FM Trailer Plug Adapter * High Quality Trailer Plug Adapter* 6-Pole Round * Pin-Type Male To 4-Way Flat Female Trailer* Sold Individually* Warranty On Trailer Plug Adapters Against Defects In Workmanship & Material...Now: $2.34Was: $10.19 -
Trailer Plug Connector Set, 6 Pole Round FM Socket Vehicle End And 6 Pole Round M Trailer End W/ 20 A Polarized Plugs
AFTERMARKET
$14.27Trailer Plug Connector Set, 20 A Polarized Plugs, W/ 6 Pole Round M/FM Sockets * High Quality Trailer Plug Connector Set* 6-Pole Round Female Socket Vehicle End * 6-Pole Round M Trailer End * 35 Amp Polarized Plugs* Die-Cast Chrome Plated Metal...$14.27 -
On Sale
Trailer Plug Connector Set, 4 Pole Round FM Socket Vehicle End And 4 Pole Round M Trailer End W/ 20 A Polarized Plugs
AFTERMARKET
Now: $7.13Was: $10.19Trailer Plug Connector Set, 20 A Polarized Plugs, W/ 4 Pole Round M/FM Sockets * High Quality Trailer Plug Connector Set* 4-Pole Round Female Socket Vehicle End* 4-Pole Round Male Trailer End Trailer Plug* 20 Amp Polarized Plugs* Die-Cast Chrome Plated...Now: $7.13Was: $10.19 -
6-Way FM Squared Trailer Connector And M 6-Way Squared Trailer Connector W/ 12 Inch 18 AWG Wires
AFTERMARKET
$7.13Moisture Proof 6-Way Squared Trailer Connectors W/ Polarized Plugs & Color Coded Wires * High Quality Trailer Connector* 12 Inch Length * 6-Way Squared * Moisture Proof* Female/Male * With Polarized Plugs* 6-18 AWG 12 Inch Length Color-Coded Wires*...$7.13 -
On Sale
4-Way FM Flat Trailer Connector And M 4-Way Flat Trailer Connector W/ 12 Inch 16 AWG Wires
AFTERMARKET
Now: $4.09Was: $5.85Molded 4-Way Flat Trailer Connectors W/ Polarized Plugs & Color Coded Wires * High Quality Trailer Connectors* 12 Inch Length * 4-Way * Flat Molded* Female/Male * With Polarized Plugs* 4-16 AWG * Color-Coded Wires* Splice Into Wiring Assembly For Hook-...Now: $4.09Was: $5.85 -
4-Way FM Flat Trailer Connector And M 4-Way Flat Trailer Connector W/ 12 Inch 18 AWG Wires
AFTERMARKET
$5.86Moisture Proof 4-Way Flat Trailer Connectors W/ Polarized Plugs & Color Coded Wires * High Quality Trailer Connectors* 12 Inch Length * 4-Way * Flat* Moisture Proof* Female/Male * With Polarized Plugs* 4-18 AWG * Color-Coded Wires* Splice Into Wiring...$5.86 -
3-Way FM Flat Trailer Connector And M 3-Way Flat Trailer Connector W/ 12 Inch 16 AWG Wires
AFTERMARKET
$5.85Molded 3-Way Flat Trailer Connectors W/ Polarized Plugs & Color Coded Wires * High Quality Trailer Connectors* 12 Inch Length * 3-Way * Flat Molded* Female/Male * With Polarized Plugs* 3-18 AWG * Color-Coded Wires* Splice Into Wiring Assembly For Hook-Up...$5.85 -
On Sale
5-Way FM Squared Trailer Connector And M 5-Way Squared Trailer Connector W/ 12 Inch 18 AWG Wires
AFTERMARKET
Now: $5.71Was: $8.15Moisture Proof 5-Way Squared Trailer Connectors W/ Polarized Plugs & Color Coded Wires * High Quality Trailer Connector * 12 Inch Length * 5-Way Squared * Moisture Proof* Female/Male * With Polarized Plugs* 18 AWG 12 Inch Length Color-Coded Wires* Splice...Now: $5.71Was: $8.15 -
Powder-Coated Steel 4-Way Or 5-Way Flat Output Easy-Mount Wiring Bracket
CURT MANUFACTURING
$14.694-Way Or 5-Way Flat Output Easy-Mount Wiring Bracket * High Quality Wiring Bracket* Allows Connectors To Be Hitch-Mounted With No Drilling Or Clamping Required * Accepts 4-Way Or 5-Way Flat Connector Sockets * Fits Virtually Any 1-1/4 Inch X 1-1/4 Inch...$14.69 -
Non-Powered 3-To-2 Wire Taillight Converter W/ 4-Way Flat Output Mounts To Surface of Board
CURT MANUFACTURING
$27.79Non-Powered 3-To-2-Wire Taillight Converter W/ Extra 4-Way Flat Connector Loop, 4 Wire Connectors & Snap Locks * High Quality Taillight Converter* Converts 3-Wire Vehicle Electrical System To Standard 2-Wire Trailer Wiring * 4-Way Flat Output Connects...$27.79 -
5-Way Flat Output Connector Socket W/ 60 Inch 16-G Color Coded Wires
CURT MANUFACTURING
$15.89Vehicle-Side 5-Way Flat Output Connector Socket W/ 60 Inch 16-G Color Coded Wires * High Quality Connector Socket* Splices Into Vehicle Wiring To Provide A Connection For A Trailer Plug * 5-Way Flat Connects Tail Lights, Brake Lights, Turn Signals And...$15.89 -
4-Way Or 6-Way Round Connector Mounting Bracket
CURT MANUFACTURING
$1.95Zinc Plated Steel Mounting Bracket For 4 Way Or 6 Way Round Connector Socket * High Quality Connector Mounting Bracket* Securely Mounts 4-Way Or 6-Way Round Connector Sockets * Allows For Attachment To The Vehicle Or Trailer Hitch * Multiple Screw Holes...$1.95