International A26
A26 2017 – 2024

Turn a $700 shop trip
into a 20-minute fix.

Read the fault, find out what it actually means and burn off the soot yourself — from the cab, on your phone. No diagnostic fee. No shop appointment just to run a regen.

60-day money-back guarantee Adapter included free Built in Detroit, MI
Key features
  • Reset fault codes
  • Forced DPF regen
  • OTR Assist AI
  • Live data monitoring
All included on every plan — plus the OTR Link 2 adapter, free.
22 million+Fault codes logged
1 million+Commands sent with OTR
100,000+Forced regens completed
10,500+OTR Members
International A26 commands · priced in what they save you

Replace a bill you've already paid before.

These aren't features — they're invoices you stop receiving. Average costs below are what members report paying shops and dealers before switching.

1 Read & reset faults before anyone charges you Command: Reset Fault Codes Skips the $400 diagnostic fee

Shops charge ~$400 on average just to plug in and tell you what you could see yourself. Read the fault, see what it means in plain English, clear it after the fix — and only pay a shop when there's actual wrench work.

Know before you go: half the battle is knowing whether it's a $40 sensor or a real repair.
2 Burn off soot yourself Command: Forced DPF Regen Replaces a $300 shop regen

When soot loads up on an A26 and a passive regen won't cut it, the shop charges ~$300 and half your day to do what your engine can do parked. Run a forced regen in 30–45 minutes while you eat lunch.

Our most-used command: members have completed 100,000+ forced regens with OTR Diagnostics.
+ Tap any command to see how it plays out on the road
Dollar figures are member-reported averages for dealer diagnostic fees and shop regens. Your rates vary by region — which is exactly why doing it yourself wins everywhere.
The math on one soot light

One check-engine light. Two ways it can go.

Without OTR Diagnostics

Diagnostic fee (average)$400
Forced regen at the shop$300
Half a day to a day parked$400 – $800
The old way$1,100 – $1,500

With OTR Diagnostics

Read fault + root cause on your phone$0
Clear the code after you've fixed it$0
Forced DPF regen, parked, 30–45 min$0
Know whether a shop is even neededOn your terms
Membershipfrom $1.09/day
Handled in 20 minutes
Why our fault data is different

We've logged 22 million fault codes. Yours won't surprise us.

  • Pattern-backed answers. When SPN 3251 shows on an A26, OTR Assist AI draws on the thousands of times our members have already hit it — what caused it, what fixed it, what it cost.
  • 1,000,000+ commands sent, 100,000+ regens run. Every forced regen and fault reset sharpens the guidance for the next driver. A code reader shows you a number; OTR shows you what 10,500 members did about it.
  • A26 coverage, 2017 to 2024. Full fault-code detail and live data on every one, plus the two bi-directional commands above.
Most-logged A26 faults · OTR member network
SPN 3251 · DPF Differential PressureUsual fix: forced regen · check DPF loading
1,000s logged
SPN 3936 · Aftertreatment DPF SystemUsual fix: forced regen · DPF service
1,000s logged
SPN 3364 · DEF QualityUsual fix: drain bad DEF, refill to spec
1,000s logged
SPN 4094 · NOx Conversion Efficiency LowUsual fix: outlet NOx sensor · DEF quality
1,000s logged
Reflects aggregated, anonymized fault data across the OTR member network.
Live data · watch problems form before they park you

The gauges International didn't put on your dash.

DPF Soot & Ash LevelsThe one that matters: regen at 80% on your schedule, not at 100% on the road's
SCR, Exhaust & DPF TemperaturesSpot a lazy aftertreatment system before the NOx faults start
DEF Fluid LevelRunning low or running bad DEF is the #1 avoidable cause of aftertreatment trouble
Intake Pressure (Turbo Boost)Falling boost = money burning as unburned fuel
EGR Valve PositionCatch a sticking valve before it cascades into bigger faults
Engine Mileage & HoursReal usage data for maintenance intervals and resale proof
International owners on OTR · 4.78★ from 600+ Google reviews

Proof from the people paying the bills.

★★★★★ Verified

"This product paid for itself on the first use. Easy to use and understand, and prevents small problems from turning into bigger problems. My favorite feature is the 'Live Data'. OTR Performance is a must have for any smart O/O or small fleet who wants to save time and money."

Robert PurserGoogle review
★★★★★ Verified

"Money well spent!!! Their customer service is excellent and the diagnostic subscription is gonna save you money. Thoroughly impressed!"

CalcasolaGoogle review
★★★★★ Verified

"Soot light came on outside Amarillo. Ran the regen myself in the truck-stop lot instead of paying a shop $300 to push the same button."

Danny W.Owner-operator · International A26
★★★★★ Verified

"Read the code myself before I called anyone. Walking in already knowing what it was changed the whole conversation with the shop."

Luis M.Owner-operator · International A26
★★★★★ Verified

"I'm 61 and not a computer guy. Plugged it in, the app found my A26, and it told me in plain English what the code meant."

Gary T.Owner-operator · International A26
★★★★★ Verified

"Stopped paying $400 every time a light came on just to be told it was nothing. I check it myself now and only go to the shop when there's real work."

Andre B.2-truck fleet · International A26