This Ultra Rare SportChassis Big Block is the ultimate hauler for serious pulling. Built by SportChassis Trucks in Oklahoma, this M2-112 features a 12.8L Mercedes diesel with 450 HP and 1,450 lb-ft of torque, paired with a 6-speed Allison 4000 Series automatic. With 183K highway miles on a true million-mile motor, this pre-DEF truck is mechanically sound, fully air-equipped, and ready to hit the road. Finished in a glossy silver exterior with brand new diamond-stitched black leather interior, this truck is as stunning as it is powerful.
Table of Specs
| Specification | Details |
|---|---|
| Mileage | 183,000 verified highway miles |
| Engine | 12.8L Mercedes diesel |
| Horsepower | 450 HP |
| Torque | 1,450 lb-ft |
| Transmission | Allison 4000 Series 6-speed automatic |
| Fuel Capacity | ~130 gallons |
| Chassis | SportChassis M2-112 Big Block |
| GVWR | 29,300 lbs |
| Interior | Diamond-stitched black leather, air ride seats |
| Suspension / Brakes | Air cab, air ride seats, air brakes, air suspension |
| Tires | 6 as-new tires |
| Hauling Setup | Gooseneck ready, fifth wheel add-on available $3,800 |
| Special Features | Upgraded SportChassis wheels, rear seat folds to bed, backup camera |
More About This Hauler Truck
This SportChassis is the holy grail for pulling enthusiasts. Unlike regular M2-106 trucks, these Big Block M2-112s are extremely rare, making this one of the most desirable SportChassis rigs on the market. It’s the last year you could get this motor pre-DEF, meaning no ad-blue issues, and the truck needs absolutely nothing.
Inside, the truck offers luxurious air ride captain’s chairs, a rear seat that folds into a bed, and a premium diamond-stitched black leather interior. The glossy silver exterior is complemented by polished upgraded SportChassis wheels, giving the truck both style and presence. With ~130 gallons of diesel, you can haul over 1,000 miles between stops, making long trips effortless.
Mechanically, this truck runs perfectly with million-mile capable power, capable of pulling even the heaviest horse trailers, campers, or equipment over mountains without hesitation. The pictures truly tell the story: excellent overall condition, minor stone chips aside, and tires and all systems in as-new condition.
Towing Ability
This truck is set up for gooseneck hauling, with the option to add a Hensley air ride fifth wheel for $3,800. The combination of 450 HP, 1,450 lb-ft torque, air ride cab, air seats, air suspension, and air brakes ensures smooth, controlled towing under any load. With 130 gallons of fuel, long-distance hauling is effortless, and the 29,300 GVWR gives you plenty of capacity for heavy loads.
Final Feature Highlights
• Ultra Rare SportChassis M2-112 Big Block
• 12.8L Mercedes diesel, 450 HP, 1,450 lb-ft torque
• Allison 4000 Series 6-speed fully automatic transmission
• 183K highway miles on a million-mile motor
• Pre-DEF model – no ad-blue issues
• Air ride cab, seats, rear suspension, and air brakes
• Brand new diamond-stitched black leather interior
• Rear seat folds into a bed
• Gooseneck hauling setup, optional air ride fifth wheel $3,800
• Backup camera and upgraded SportChassis wheels
• 6 as-new tires, ~130 gallons fuel capacity
• 29,300 GVWR
• Excellent overall condition, minor stone chips only
• Stunning silver exterior
This is a once-in-a-lifetime opportunity to own a rare, powerful, and luxurious SportChassis Big Block that will outperform almost anything on the road today. At a fraction of the cost of a new pre-DEF rig, this truck is ready to haul with confidence and style—don’t miss it.










































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