INTERIOR

Digital Load Gauge W/ Black BezelFind aftermarket digital load gauges for your big rig at 4 State Trucks. This load gauge is designed to fit standard 2 1/16 inch diameter holes and will display actual pounds of weight on your air suspension to the...

Digital Outside Temperature GaugeKnow the temperature outside of your cab with this quality digital temperature gauge. It has a range of -99 degrees F up to 150 degrees F and is designed to fit 2 1/16 inch diameter holes. The gauge features a black rim...

5000-55000 Lb. Axle Load GaugeKnow how much weight your axles are holding with this aftermarket 2 1/16 inch Isspro axle load gauge. It features a black face with white numbers, a display that ranges from 5000-55000 pounds, and comes with a warranty...

60-0-60 Scale Amp Gauge Measure the actual amount of electrical current flowing into or out of your battery with this top of the line 2 inch Isspro amp gauge. It displays 60-0-60 scales and fits various makes and models. Isspro is a trusted brand for...

100-280 Degree Electric Water Temp GaugeFind aftermarket Isspro electrical water temperature gauges for your big rig at 4 State Trucks. This 2-inch gauge has a black face with white numbers, has a range of 100-280 degrees, and comes with a warranty...

140-320 Degree Electric Oil Temp GaugeWe offer aftermarket Isspro electric oil temperature gauges for your big rig. This 2-inch gauge has a range of 140-320 degrees, has a black face with white numbers, and comes with a warranty against defects in...

2 Inch Mechanical Water Temp GaugeAt Elite Truck Accessorieswe have aftermarket Isspro mechanical water temperature gauges for your big rig. This 2-inch gauge has a black face with white numbers, includes a 96-inch lead, and comes with a warranty against...

0-100 PSI Electrical Oil Pressure GaugeWe offer top of the line Isspro electrical oil pressure gauges that have a range of 0-100 PSI. This 2 inch gauge fits various models and comes with a warranty against defects in materials and workmanship. * High...

2-30 PSI Mechanical Manifold Pressure GaugeAt Elite Truck Accessorieswe offer aftermarket Isspro Mechanical manifold pressure gauges. This 2 inch gauge features a 2-30 PSI range and comes with a warranty against defects in materials and workmanship. *...

0-150 PSI Mechanical Air Pressure GaugeWe offer this quality aftermarket Isspro mechanical air pressure gauge for your big rig. With a 2-inch chrome face, the gauge ranges from 0-150 PSI and comes with a warranty against defects in materials and...

Tractor Air Valve Control Knob * High Quality Tractor Air Valve Control Knob* Made of High Quality Wood* Tractor Script * Glossy Sticker * Sold Individually* Warranty On Air Valve Knobs Against Defects In Workmanship & Material From Date Of...

Dashboard Wood Dimmer Air Valve Control Knob - Labeled * High Quality Dimmer Air Valve Control Knob* Made Of Wood* Dimensions - 1/4 Inch ID - 1 3/16 Inch Height* Chrome-Plated Rim And Stainless Steel Script Plate On Top * “Dimmer” Script* Hex Screw...