International · Class 8 on-highway tractor
International LoneStarInternational A26 12.4L (from 2017), Cummins X15 (from 2017), MaxxForce 13 (2009-2016)
Built 2009-2026
Engine International A26 12.4L (from 2017), Cummins X15 (from 2017), MaxxForce 13 (2009-2016)
Sources checked 117 of 131 (89%)
What it is
International's premium long-nose conventional, introduced in 2009 with retro styling. Originally powered by the MaxxForce 13; from 2017 it switched to the redesigned A26 and the optional Cummins X15.
Pick a folder
Fluids & Fill Amounts5 entriesBolt Tightness51 entriesWhen to Service12 entriesWarning Lights & Codes30 entriesHow to Fix It77 entries
The truck itself
Engine options
International A26 12.4L (2017+), Cummins X15 15.0L (2017+), MaxxForce 13 12.9L (2009-2016)
Horsepower
370-515 hp (A26); 400-605 hp (X15)
Peak torque
1,250-1,750 lb-ft (A26); 1,450-2,050 lb-ft (X15)
BBC
123 in
Transmission
Eaton Fuller manual or automated; International S13 integrated (from 2017)
Front axle
Meritor / International 12k-13.2k
Rear axle
Meritor 40k-46k tandem
Weight class
Class 8 - 52,000-80,000 lb
Before you order anything
Options change the numbers
The LoneStar shares the LT Series platform from 2017 onward. The A26 replaced the MaxxForce 13 and uses API CK-4 directly without a proprietary specification overlay. Engine choice drives everything on the fluids page.