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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1-30 AMP ATC/ATO In-Line Fuse Holder W/ 8 Inch 12 AWG Orange Wire
AFTERMARKET
$13.251-30 AMP Water Proof In-Line Fuse Holder W/ Protective Cap & 12 AWG Wires * High Quality ATX/ATO HD Fuse Holder* Orange* Plastic Housing* 2 - 8 Inch * 12 AWG* 1-30 A* Temperature Rating Of 105 C (221 F)* GXL Leads* Waterproof* Fast-Acting Blade Fuse...$13.25 -
On Sale
ATC/ATO And Mini Fuse Puller/Tester Tool Installed W/ 2 LR41 Batteries
AFTERMARKET
Now: $7.00Was: $14.01ATC/ATO And Mini Fuse Puller/Tester Tool Installed W/ 2 LR41 Batteries * High Quality Fuse Puller/Tester Tool* ATC/ATO And Mini Fuse Puller/Tester Tool. * Comes Installed With (2) LR41 Alkaline Batteries* To Use Tester Touch The Two Contacts To The Two...Now: $7.00Was: $14.01 -
On Sale
12-10 AWG Yellow Nylon Insulated Butt Connector - 8 PCS
AFTERMARKET
Now: $1.75Was: $3.50Yellow Nylon Insulated Butt Connector * High Quality Insulated Butt Connector* Nylon* Yellow* 8 Pieces* 12-10 AWG* Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V Groove Serrations To Provide Maximum Contact And Tensile Strength After...Now: $1.75Was: $3.50 -
16-14 AWG Blue Nylon Push On Male Disconnect W/ .250 Tab - 10 PCS
AFTERMARKET
$3.5016-14 AWG Fully Insulated Push On Male Disconnect W/ .250 Tab - 10 PCS * High Quality Male Disconnect* Nylon* Blue* 10 Pieces* 16-14 AWG, .250 Tab * Push-On Style * Fully Insulated * Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V...$3.50 -
12-10 AWG Yellow Vinyl Ring Terminal For NO. 10 Stud - 14 PCS
AFTERMARKET
$3.50Insulated Ring Terminal For NO. 10 Stud And 12-10 AWG Wires * High Quality Vinyl Insulated Ring Terminal* Yellow* 12-10 AWG * No. 10 Stud* 14 Piece Set* PVC Injection Molded With Funnel Entry For Fast Easy Wire Insertion* Terminals Have V Groove...$3.50 -
On Sale
16-14 AWG Blue Vinyl Pin Terminal - 12 PCS
AFTERMARKET
Now: $2.45Was: $3.5016-14 AWG Insulated Pin Terminal - 12 PCS * High Quality Insulated Pin Terminal* Vinyl* Blue* 12 Pieces* 16-14 AWG * PVC Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V Groove Serrations To Provide Maximum Contact And Tensile Strength...Now: $2.45Was: $3.50 -
12-10 AWG Yellow Vinyl Push On Female Disconnect W/ .250 Tab - 15 PCS
AFTERMARKET
$3.50Insulated Push On Female Disconnect For 12-10 AWG Wires W/ .250 Tab - 15 PCS * High Quality Insulated Female Disconnect* Vinyl* Yellow* 15 Pieces* 12-10 AWG, .250 Tab * Push-On Style* PVC Injection Molded With Funnel Entry For Fast Easy Wire Insertion*...$3.50 -
On Sale
12-10 AWG Yellow Vinyl Ring Terminal For NO. 8 Stud - 14 PCS
AFTERMARKET
Now: $1.75Was: $3.50Insulated Ring Terminal For NO. 8 Stud And 12-10 AWG Wires * High Quality Vinyl Insulated Ring Terminal* Yellow* 12-10 * AWG No. 8 Stud* 14 Piece Set* PVC Injection Molded With Funnel Entry For Fast Easy Wire Insertion* Terminals Have V Groove...Now: $1.75Was: $3.50 -
16-14 AWG Blue 3 Way Nylon Connector - 4 PCS
AFTERMARKET
$3.5016-14 AWG 3 Way Insulated Connector * High Quality Insulated Connector* Nylon* Blue* 4 Pieces* 16-14 AWG * 3-Way * Y Shaped* Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V Groove Serrations To Provide Maximum Contact And Tensile...$3.50 -
16-14 AWG Blue 4 Way Nylon Connector - 4 PCS
AFTERMARKET
$3.5016-14 AWG 4 Way Insulated Connector * High Quality Insulated Connector* Nylon* Blue* 4 Pieces* 16-14 AWG * 4-Way * X Shaped* Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V Groove Serrations To Provide Maximum Contact And Tensile...$3.50 -
On Sale
16-14 AWG Blue Nylon Female Flag Terminal W/ .250 Tab - 8 PCS
AFTERMARKET
Now: $2.08Was: $3.5116-14 AWG Fully Insulated Female Flag Terminal W/ .250 Tab * High Quality Female Flag Terminal* Nylon* Blue* 8 Pieces* 16-14 AWG, .250 * Fully Insulated * Injection Molded With Funnel Entry For Fast Easy Wire Insertion* V Groove Serrations To Provide...Now: $2.08Was: $3.51 -
On Sale
18-8 AWG Red/Yellow Premium Vinyl Twist Connector - 4 PCS
AFTERMARKET
Now: $0.80Was: $3.5018-8 AWG Red/Yellow Twist Connector * High Quality Premium Vinyl Twist Connector* Red/Yellow* Max 5 X 12 AWG* Min 2 X 18 AWG* Capable Of Connecting Two Or More Wires Together In A Pigtail Application* Connector Is Constructed Of An Active Spring And A...Now: $0.80Was: $3.50