International's New ProStar

It's a driver's truck for its quietness and handling. And it's an owner's truck for its low maintenance and repairability.

July 2007, - Test Drives

by Steve Sturgess, Executive Editor

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International says the ProStar has also been optimized for service. In fact, the truck builder claims this adds up to 59 fewer visits to the shop over a 10-year life, contributing to its lowest-cost-of-ownership objective as well as to vehicle uptime.

From a technician's point of view, the swing-down front bumper and the removable side skirts are a plus. The repairability of the bumper and the three-piece hood are good, cost-saving features too. I'm not so certain about the big, one-piece windshield. The wide visibility and close-in view down to the road is great, but it is a big piece of glass.

Air and electrical connections at the back of the cab can be reached from the ground, and check and fill points under the hood are certainly easy to get to with the swing-down bumper.

Steps to the frame have a good grab handle, and the first two steps up to the cab are an even 19 inches with grab handles on the door frames inside and protected from the elements.


I came back to the ProStar with high expectations and was not in the least disappointed. It was just as good – even better – than the prototype I drove a year ago. It is formidable competition to the other premiums in the marketplace and will likely bring a lot of conquest deals.

Undoubtedly, ProStar is a great truck and, especially in this pretty red Limited edition, very attractive. And here beauty is far more than skin deep, because the truck is all-new, well thought out and well executed. It is a driver's truck for its quietness and handling, and it's an owner's truck for its low maintenance and repairability.

Test Vehicle Specs

Tractor International ProStar Limited

Frame 120,000 PSI 367.4" OAL

Engine Cummins ISX-485 - 500HP @1800 rpm, 1,650 lb.ft @ 1200 rpm

Clutch 15.5" 2-plate Eaton Solo clutch 7 spring

Transmission Eaton Fuller RTLO-18913A 13-spd w/dbl&od

Drive Axles Meritor RT40-145 40K TANDEM

Axle Ratio 3.58 to one

Rear Suspension International Air Susp. 52" spread

Front Axle Meritor MFS-12-143A 12,K wide track

Front Suspension Parabolic Taper Leaf 12,000#

Steering TRW PCF 60 power

Foundation Brakes

Front Meritor Q-Plus 15 x 4 Drums

Rear Meritor Q-Plus 16.5 x 7 drum with MGM park on rear

Wheels Polished International 8.25 x 22.5


Front General 295/75R22.5

Rear Goodyear 11R G372

Fifth Wheel Fontaine SL6ATB675024) Air slide

Fuel Tanks Dual 26" 125/150 gal aluminum

Cab International 73-in ProStar

Hood Fiberglass tilt, 3 piece

Cab Aero Options Aero hood & bumper, chassis fairings, roof fairing and extenders, aero mirrors

Cab Interior Trim Limited

Seats International (National) 2000 1HP and 197

Sleeper 73" Hi-Rise

Paint Red Pearl Metallic

Additional equipment

Front bumper chrome & body color, 2 pc; 18.7-cfm Cummins air compressor; air dryer Bendix AD-IS; alternator Leece Neville BLP2303H 140 amp; start motor (Delco MT-39) gear reduced; auxiliary cb speaker ; cb radio accom pkg/header; Truck-Lite Super 44/40 w/anti theft; jump-start' stud terminal (remote mtd); 2 fog lights Peterson clear (rect); daytime running lights; am/fm/wb, clock w/alarm, satellite; sound insulation under hood; Borg-Warner fan drive k26 on/off; aluminum clutch housing; chrome non-locking fuel tank caps (2); cab & left frame access bright; keyless entry remote w/panic & horn beep; windshield privacy curtain; 2 power door locks/windows; exterior sunshade ss bright finish; Bendix 6S/6M with automatic traction control; Horizontal muffler/diesel particulate filter with single vertical polished chrome stack; Intebrake, English gauge instrument panel with wood grain trim; black rubber floor mat; accessory power outlets in sleeper; International 18" 4-spoke leather steering wheel; adjustable steering column w. telescoping tilt


Length 345

Width 97

Height 135

Wheelbase 236

Step Heights 19/19.5/14

Floor height 52.5

Baggage liftover 53

Frame ht @ fifth wheel 41

In Cab

Shoulder width 76

Windshield width 76

Height at standup point 76

Seat to ceiling 54-59

Belly room 11.5-32.5

Legroom (driver) 26-34

(passenger) 21-29

Footwell width driver/passenger 24 ea


Walkthrough seats 21

Width 89

Height at bunk 80

Bunk to ceiling 57

Bunk width 42

Clear floorspace Not measured


Turning circle

Left 76.33'

Right 73.66'

Closest sight to ground 14.66'

Noise at idle 57 dB (A)

Cruise 66

max accel 68

Jake 68

RPM @ 60 mph top gear 1250

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  1. 1. Joe Clem [ December 21, 2015 @ 10:36AM ]

    My wife and I team. We drive a 2015 prostar auto.
    We love this truck. It has plenty of room for us and a refrigerator microwave and tv.
    We pull 40k plus loads regularly in the rockies cascades and Sierra Nevada mountain ranges and we have no problem keeping our fuel mileage over 7.0 we've had it as high as 8.5 but that was flat southwest light loads. We've driven volvos and the Cascadia and we would much rather have the prostar than those two. I'm 6'3" and have no problem with room in this truck anywhere. My wife is 5'1" yes we are the odd couple but she doesn't have any problems getting the hood open or reaching the pedals with the very customizable driver seat and steering column. She loves this truck with it's easy handling easy to reach controls and very customizable driver side. I like those features as well but what I really like is pulling up hill and being able to wave at all the big engine pete's and kw's as we pull past them. The only issue i have is that the driverside window will get stuck sometimes in inclement weather and you have to push the button several times to get it all the way up or down. If that's all i have to deal with then i can handle it. You have designed a very team driver friendly truck. My wife and I look forward to what future generation prostars will bring our way.


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