Tri Axle Sleeper Semi Trucks with Detroit Engines, Air Ride Suspension For Sale

2011 Western Star 4900 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Detroit 500HP, 18 Speed Manual

Newly Listed

Contact for price

2011 Western Star 4900SA, 500 hp Detroit DD15, 18 spd Overdrive transmission with 4.30 gears in 46k rear ends with full lockers. 16K front axle and #13,200 steerable lift. 2 Line wet kit

Condition	Used
Usage	10,656 Hours
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Detroit DD15
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	59,200 lb
Stock Number	BTS8704
MLS Number	14088452
Category	Sleeper Semi Trucks
Last Updated	1/14/2026
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

2019 Freightliner Cascadia 125 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Detroit 505HP, 10 Speed Manual

$54,500 USD

JUST IN!!! 2019 Freightliner Cascadia, #13,200 Factory Steerable Lift Axle, Detroit DD15, 505 HP, 10 Speed Manual Transmission. 260" WHEEL BASE. 3.55 REAR ENDS, Aluminum Wheels, Jake Brake,...

Condition	Used
Usage	469,236 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	8x4
Transmission	10 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	53,500 lb 3.55 ratio
Stock Number	BTS8277
MLS Number	14053730
Category	Sleeper Semi Trucks
Last Updated	12/20/2025
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

1994 Peterbilt 378 Tri Axle Sleeper Semi Truck - 36" Flat Top Sleeper, Detroit 450HP, 18 Speed Manual

$57,500 USD

1994 Peterbilt 378, PRE-EMISSION, New Crate Motor Detroit 60 Series engine installed 170,000 miles ago w/paperwork, 450 HP, Reman 18 Speed Manual Transmission installed 170,000 miles ago...

Condition	Used
Usage	1,000,000 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	450 HP
Engine Model	Detroit SERIES 60 12.7 DDEC III
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Sleeper Size	36"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	52,500 lb 3.90 ratio
Stock Number	BTS3930
MLS Number	14049336
Category	Sleeper Semi Trucks
Last Updated	12/18/2025
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

2019 Freightliner Cascadia 125 Tri Axle Sleeper Semi Truck - 48" Mid Roof Sleeper, Detroit 505HP, 10 Speed Manual

$54,500 USD

2019 Freightliner Cascadia, #13,200 Factory Steerable Lift Axle, Detroit DD15, 505 HP, 10 Speed Manual TRANS. 260 WHEEL BASE. 3.55 REAR ENDS,

Condition	Used
Usage	413,735 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	505 HP
Engine Model	Detroit DD15
Drivetrain	8x4
Transmission	10 Speed Manual
Sleeper Type	Mid Roof Sleeper
Sleeper Size	48"
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	53,500 lb 3.55 ratio
Stock Number	BTS8280
MLS Number	13645086
Category	Sleeper Semi Trucks
Last Updated	11/19/2025
Location	Great Falls, MT, US
Sold By	Bouma Truck Sales

(833) 904-___ SHOW
NUMBERCall Seller

2015 Western Star 4900 Tri Axle Sleeper Semi Truck - Flat Top Sleeper, Detroit 500HP, 18 Speed Manual

$69,500 USD

2015 Western Star Sleeper, 500hp Detroit DD16, 18spd Manual, 30,966 Mi, Air ride Suspension, Nationwide Delivery Available

Condition	Used
Usage	30,966 Miles
Duty Class	Heavy Duty Sleeper Semi Truck
Horse Power	500 HP
Engine Model	Detroit DD16
Drivetrain	8x4
Transmission	18 Speed Manual
Sleeper Type	Flat Top Sleeper
Suspension	Air Ride
Rear Axle	Tri Axle
Rear End	57,020 lb
Stock Number	6602
MLS Number	13906011
Category	Sleeper Semi Trucks
Last Updated	10/30/2025
Location	Sawyer, KS, US
Sold By	The Wrays, LLC