Mack Trucks

Spring-Loaded Gooseneck Safety Chain U-Bolt KitKeep your gooseneck trailer safety chains secure with this CURT U-Bolt Kit! With a spring-loaded design and durable zinc-plated finish, it keeps safety chain loops snug. This kit is compatible with the CURT...

Plug-And-Play 7-Way RV Blade Integrated Truck Backup BeeperThis electrical adapter plugs into a 7-way RV blade vehicle socket and adds a backup alarm to your tow vehicle, emitting an audible signal when the vehicle is in reverse. It includes a dust cover...

4-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 4-Way Flat COnnector Socket *...

7-Way RV Blade Connector Mounting Bracket * High Quality Connector Mounting Bracket* Securely Mounts 7-Way RV Blade Connector Sockets * Allows For Attachment To The Vehicle Or Trailer Hitch * Multiple Screw Holes Offer Flexible Mounting Options *...

4-Way Flat Connector Plug And Socket * High Quality 4-Way Flat Connector Plug And Socket* Splices Into Existing Wiring To Provide Connections For Both Vehicle And Trailer * Looped Wire Can Also Be Used As A Wire Extension For An Existing Connector *...

Brake Master Cylinder Brake Booster W/ 1.25 Inch Master Cylinder * High Quality Brake Master Cylinder * Brake Booster Included: Yes* Master Cylinder Bore Diameter: 1-1/4 Inch* Master Cylinder Cap Included: No* Master Cylinder Material: Cast Iron*...

Passenger Side Lower Adjustable Suspension Control Arm * High Quality Suspension Control Arm* Connector Gender: Female* Height: 1 Inch* Length: 3.25 Inch* Package Contents: 1 Diesel Glow Plug Controller* Package Quantity: 1* Packaging Type: Box* Terminal...

Driver Side Lower Adjustable Suspension Control Arm * High Quality Suspension Control Arm* Adjustable: Yes* Attachment Type: Pressed* Ball Joint Included: Yes* Ball Joint Installed: Yes* Ball Joint Stud Type: Threaded* Ball Joint Thread Diameter: 14 Mm*...

Reflexallen 15 Foot Black 40MM Coiled Air Hose W/ 12 Inch LeadTubing designed to kink, bend, flex, stretch and survive the coldest and hottest temperature for a long service life! * High Quality Air Brake Hoses* Intelli-Flex Kink-Repairing Tubing Can...

Holland 5th Wheel Slide Rails W/ 8 Inch Risers * High Quality 5th Wheel Slide Rails * 8 Inch Risers * Has 24 Inches Of Travel * Outboard Brackets (Included)* Sold As Set** Warranty On 5th Wheel Slide Rails Against Defects In Workmanship & Material From...

Canadian Loadshare Counter-Sink Bolts W/ Allen Head * High Quality Loadshare Bolts* 3/8 X 1 Inch Counter Sink * With Allen Head* Sold Individually ** Warranty On Loadshare Bolts Against Defects In Workmanship & Material From Date Of Purchase***High...

Shock Absorber Fits Mack GU & Volvo VHDFind premium shock replacements for your truck at 4 State Trucks. We carry these front Bulldog Heavy Duty Shocks, reengineered to last longer and perform better than the part that came with your truck. They have...