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Heavy Duty Chassis

At IWS we specialize in custom ordering, building, and outfitting heavy duty towing equipment. Over the years we have built and sold all different types of heavy-duty chassis. We can provide you with firsthand knowledge of all the different models Miller and IWS recommend in the heavy-duty segment. We can provide you with many different manufacturers such as Peterbilt, Kenworth, Freightliner and International. With heavy duty chassis, there are many different options to choose from. To quote a heavy-duty chassis, we will take you through the custom ordering process as there is not a standard chassis for every application. When you are making a large investment like this, you want to be assured that you are buying the right piece of equipment for your fleet. At IWS we have the staff, the knowledge, and experience to ensure that you are going to get the best heavy-duty chassis for your wrecker on the market.

 Sprinter 3500 F-550 Super Duty XLT S2-RVM2-106Newmar M2-106M2-112Cascadia 116 IWS Signature Series ChassisCascadia 126 IWS Signature Series Chassis567VNR 113VNL 125
LENGTH (Back of Cab to Front Bumper)99.5"120"106"106"106"116"116"126"125"113"125"
ENGINEMercedes Blue Tec 3.0 L Turbo DieselFord Powerstroke Diesel (6.7 Litre) Cummins B 6.7 (6.7 Litre)Cummins L9 (8.9 Litre)Cummins L9 (8.9 Litre)Detroit DD13 (13 Litre)Detroit DD13 (13 Litre)Detroit DD16 (16 Litre)Cummins X15 (15 Litre)Volvo D13Volvo D13
HORSEPOWER188 hp 330 hp360 hp350 hp 350 hp 505 hp 505 hp 600 hp 565 hp 500 hp500 hp
TORQUE (lb-ft)32575080011501150185018501850185018501850
AUTOMATIC TRANSMISSIONTronic 7- Speed Automatic Torqshift 6- Speed AutomaticAllison 3000 Series 6-Speed AutomaticAllison 3000 Series 6-Speed AutomaticAllison 3000 Series 6-Speed AutomaticAllison 4000 Series 6-Speed AutomaticAllison 4000 Series 6-Speed AutomaticAllison 4000 Series 6-Speed AutomaticAllison 4000 Series 6-Speed AutomaticN/AN/A
AUTOMATED TRANSMISSIONN/AN/AN/AN/AN/ADetroit DT12 12-Speed AutomatedDetroit DT12 12-Speed AutomatedDetroit DT12 12-Speed AutomatedEaton Ultrashift 13-Speed AutomatedVolvo I-Shift 12-Speed AutomatedVolvo I-Shift 12-Speed Automated
COLLISION MITIGATION SYSTEMActive Brake AssistN/AN/AStandardStandardStandardStandardStandardN/AStandardStandard
ADAPTIVE CRUISE CONTROLActive Distance Assist Distronic N/AN/AStandardStandardStandardStandardStandardN/AStandardStandard
LANE DEPARTURE WARNINGStandardN/AN/AStandardStandardStandardStandardStandardN/AStandardStandard
BLIND SPOT MONITORING SYSTEM N/AN/AN/AStandardStandardStandardStandardStandardN/AStandardStandard
AUTOMATIC TRACTION CONTROLStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandard
BRAKESPower Disc Power Disc Air DrumAir DrumAir DrumAir DiscAir DiscAir DiscAir DiscAir DrumAir Drum
WHEEL CUT45 Degrees45 Degrees55 Degrees55 Degrees55 Degrees50 Degrees50 Degrees50 Degrees50 Degrees50 Degrees50 Degrees
AIR BAGDriver and Passenger Front and Side Air Bag Driver and Passenger Front and Side Curtain N/AN/AN/AN/AN/AN/AN/ADrivers Side OnlyDrivers Side Only
CHASSIS BATTERIES(1) 12 V AGM 95ah (1) 12 V 750 CCA(2) Group 31(2) Group 31(2) Group 31(3) Group 31(3) Group 31(3) Group 31(3) Group 31(3) Group 31(3) Group 31
ALTERNATOR220 AmpDual (332 Amp Total) 180 Amp180 Amp180 Amp270 Amp270 Amp270 Amp270 Amp270 Amp270 Amp
ENGINE BRAKINGN/ADiesel Engine Exhaust Brake Cummins Integral Exhaust Brake with VG TurboCummins Compression Brake Brake (2) Stage Low, HighCummins Compression Brake Brake (2) Stage Low, HighJacobs Compression Brake (3) Stage Low, Medium, HighJacobs Compression Brake (3) Stage Low, Medium, HighJacobs Compression Brake (3) Stage Low, Medium, HighCummins Compression Brake (3) Stage Low, Medium, HighVolvo Compression Engine Brake (3) Stage, Low, Medium, HighVolvo Compression Engine Brake (3) Stage, Low, Medium, High
FUEL TANK26 Gallons66.5 Gallon (1) 100 Gallon(2) 50 Gallon(2) 50 Gallon(1) 120 Gallon(1) 120 Gallon(1) 120 Gallon(1) 120 Gallon(1) 125 Gallon(1) 125 Gallon
DEF TANK CAPACITY6 Gallons7 Gallons6 Gallon6 Gallon6 Gallon13 Gallon13 Gallon13 Gallon13 Gallon18 Gallon18 Gallon
FRONT AXLE SUSPENSION4,0807,500 lb Coil Spring 12,000 lb. Taper Leaf13,300 lb. Taper Leaf13,300 lb. Taper Leaf18,000 lb. Taper Leaf18,000 lb. Taper Leaf18,000 lb. Taper Leaf18,000 lb. Taper Leaf18,000 lb. Taper Leaf18,000 lb. Taper Leaf
FRONT TIRE SIZE215/85 R16225/ 70R / 19.5 294 / 75R / 22.5 295 / 75R / 22.5 295 / 75R / 22.5 315 / 80R / 22.5 315 / 80R / 22.5 315 / 80R / 22.5315 / 80R / 22.5315 / 80R / 22.5315 / 80R / 22.5
SINGLE REAR AXLE SUSPENSION7,06014,406 lb Leaf Spring Suspension19,000 lb. Airliner Suspension21,000 lb. Airliner Suspension21,000 lb. Airliner Suspension23,000 lb. Airliner Suspension23,000 lb. Airliner Suspension23,000 lb. Airliner Suspension23,000 lb Peterbilt Air Trac Suspension23,000 lb Meritor Wabco Air Suspension23,000 lb Meritor Wabco Air Suspension
TANDEM REAR AXLE SUSPENSIONN/AN/AN/AN/AN/A40,000 lb. Airliner Suspension40,000 lb. Airliner Suspension40,000 lb. Airliner Suspension40,000 lb Peterbilt Air Trac Suspension40,000 lb Meritor Wabco Air Suspension40,000 lb Meritor Wabco Air Suspension
REAR TIRE SIZE215/85 R16225/ 70R / 19.5 294 / 75R / 22.5 295 / 80R / 22.5 295 / 80R / 22.5 295 / 80R / 22.5 295 / 80R / 22.5 295 / 80R / 22.5295 / 80R / 22.5295 / 80R / 22.5295 / 80R / 22.5
AXLE DIFFERENTIAL LOCKN/AN/AN/AStandardStandardStandardStandardStandardStandardStandardStandard
AIR SUSPENSION DUMP VALVEN/AN/AN/AN/AN/AStandardStandardStandardStandardStandardStandard
GVWR SINGLE REAR AXLE (LBS)1103014,70631,00034,30034,30041,00041,00041,00041,00041,00041,000
GVWR TANDEM REAR AXLE (LBS) N/AN/AN/AN/AN/A58,00058,00058,00058,00058,00058,000
GCWR SINGLE REAR AXLE15,25040,00046,00055,30055,30060,00060,00060,00060,00060,00060,000
GCWR TANDEM REAR AXLEN/AN/AN/AN/AN/A80,00080,00080,00080,00080,00080,000
TOWING CAPACITY SINGLE REAR AXLE (LBS) 7,50012,00012,00020,00020,00020,00020,00020,00020,00020,00020,000
TOWING CAPACITY TANDEM REAR AXLE (LBS) N/AN/AN/AN/AN/A30,00030,00030,00030,00030,00030,000
AVAILABLE ON THE VIENNAYESNONONONONONONONONONO
AVAILABLE ON THE VERACRUZNOYESNONONONONONONONONO
AVAILABLE ON THE VALENCIANONOYESNONONONONONONONO
AVAILABLE ON THE VERONANONONOYESYESNONONONONONO
AVAILABLE ON THE XLNONONONONOYESYESYESNOYESYES
AVAILABLE ON THE CLASSICNONONONONOYESYESYESYESYESYES
AVAILABLE ON A SHOW HAULERNONONOYESYESYESYESYESYESYESYES
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