Mack Truck Parts
Find top-quality Mack truck parts at 4 State Trucks. Upgrade your rig with OE replacements and aftermarket solutions to ensure peak performance and durability. From bumpers and engine parts to fenders, you'll discover everything needed to keep your truck in prime condition. Hit the road confidently with reliable replacement Mack Truck parts.
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Powered 3-To-2 Wire Taillight Converter W/ 4-Way Flat Output, Snap Locks, & Color Coded Wires
CURT MANUFACTURING
$46.99Splice-In 3-To-2 Wire Trailer Tail Light Converter W/ Snap Locks, Color Coded Wires & 4-Pin Wiring Harness * High Quality Taillight Converter* Converts 3-Wire Vehicle Electrical System To Standard 2-Wire Trailer Wiring * 4-Way Flat Output Connects Tail...$46.99 -
Vehicle-Side Heavy Duty 7-Way RV Blade Connector Socket W/ Spring-Loaded Dust Cover
CURT MANUFACTURING
$17.29Black Plastic Vehicle-Side Heavy Duty 7-Way RV Blade Connector Socket, W/ Spring-Loaded Dust Cover * High Quality RV Blade Connector Socket* Weather-Resistant Dust Cover Features A Rubber Insert To Seal Out Moisture * Spring-Loaded Cover Also Helps Keep...$17.29 -
Black Plastic Vehicle-Side 5-Way Flat Connector Tester W/ LED Lights
CURT MANUFACTURING
$10.59Vehicle-Side 5-Way Flat Connector Tester W/ LED Lights * High Quality Connector Tester* Confirms Proper Function Of Vehicle-Side Wiring Connector * Tests 5-Way Flat For Tail Lights, Brake Lights, Turn Signals And Reverse Lights * Constructed With LED...$10.59 -
Black Molded Rubber Vehicle-Side 5-Way Flat Connector Dust Cover
CURT MANUFACTURING
$0.41Vehicle-Side 5-Way Flat Connector Dust Cover * High Quality Connector Dust Cover* Protects Connector From Water, Dust And Road Grime When Not In Use * Helps Prevent Internal Corrosion For A Long Operating Life * Fits Virtually Any 5-Way Flat Connector...$0.41 -
Vehicle-Side 4-Way Flat Connector Socket W/ Hardware
CURT MANUFACTURING
$14.69Vehicle-Side 4-Way Flat Connector Socket W/ Color-Coded Wire, Snap Locks, Mounting Bracket & Hardware * High Quality Connector Socket* Splices Into Vehicle Wiring To Provide A Connection To The Trailer Plug * 4-Way Flat Output Connects Tail Lights, Brake...$14.69 -
7-Way RV Blade Connector Mounting Bracket W/ Slotted Screw Holes
CURT MANUFACTURING
$9.39Gloss Black Steel 7-Way RV Blade Connector Mounting Bracket * High Quality Connector Mounting Bracket* Mounts A 7-Way RV Blade Connector Socket * Attaches To A Long Bracket Mount 09-055000091 For Easy, No-Drill Installation * Slotted Screw Holes Allow...$9.39 -
Black Molded Rubber Vehicle-Side 5-Way Flat Connector Dust Cover - Packaged
CURT MANUFACTURING
$3.99Vehicle-Side 5-Way Flat Connector Dust Cover * High Quality Connector Dust Cover* Protects Connector From Water, Dust And Road Grime When Not In Use * Helps Prevent Internal Corrosion For A Long Operating Life * Fits Virtually Any 5-Way Flat Connector...$3.99 -
4-Way Flat Vehicle To 7-Way RV Blade Trailer Electrical Adapter W/ Brake Controller
CURT MANUFACTURING
$122.99Plug-And-Play 4-Way Flat Vehicle To 7-Way RV Blade Trailer Electrical Adapter W/ Brake Controller & Spring Loaded Dust Cover * High Quality Electrical Adapter* Adapts A 4-Way Flat Vehicle Socket To Fit 7-Way RV Blade Trailer Plugs * Simple Plug-And-Play...$122.99 -
Gloss Black Steel 4-Way And 6-Way Round Connector Mounting Bracket
CURT MANUFACTURING
$8.09Gloss Black Steel 4-Way & 6-Way Round Connector Mounting Bracket * High Quality Connector Mounting Bracket* Made Of High-Strength Steel* Mounts 4-Way Or 6-Way Round Connector Sockets * Attaches To A Short Bracket Mount 09-055000097 For Easy, No-Drill...$8.09 -
Clamp-On Connector Bracket Mount For 4, 5 Or 6-Way Bracket
CURT MANUFACTURING
$22.49Universal Clamp-On Connector Bracket Mount For 4, 5 Or 6-Way Bracket * High Quality Connector Bracket Mount* Made Of High-Strength Steel* Short, Universal Clamp-On Mount For 4, 5 And 6-Way Socket Brackets * Compatible With Flat And Round 4-Way, 5-Way And...$22.49 -
Vehicle-Side Die-Cast Metal 4-Way Round Connector Socket W/ Spring-Loaded Dust Cover, Concealed Terminals
CURT MANUFACTURING
$11.99Vehicle-Side Die-Cast Metal 4-Way Round Connector Socket W/ Spring-Loaded Dust Cover & Concealed Terminals * High Quality Round Connector Socket* Splices Into Vehicle Wiring To Provide A Connection For A Trailer Plug * 4-Way Round Output Connects Tail...$11.99 -
Zinc-Plated Steel 7-Way Round RV Blade Connector Mounting Bracket
CURT MANUFACTURING
$1.627-Way Round RV Blade Connector Mounting Bracket * High Quality Connector Mounting Bracket* Securely Mounts 7-Way Round Connector Sockets * Allows For Attachment To The Vehicle Or Trailer Hitch * Multiple Screw Holes Offer Flexible Mounting Options *...$1.62