Quick answer
PartStop stocks premium-quality aftermarket direct-replacement parts for International semi trucks — including LT, LoneStar, ProStar, HX and DuraStar — shipped nationwide from Tacoma, WA the same business day, with a 6+ month warranty. Verify fitment free by VIN at partstop.net/vin or by the OEM / cross-reference number on your old part.
Aftermarket direct-replacement parts for International trucks (LT and more) — what we stock, how the model families differ, and how to verify fitment by VIN or cross-reference before you buy.
International models we stock parts for
PartStop carries premium-quality aftermarket direct replacements for International trucks including LT, LoneStar, ProStar, HX, HV, MV, DuraStar, WorkStar, 9900i, 4300/4400 — running International A26 and Cummins X15 / L9 power. Every part ships from Tacoma, WA the same business day when ordered before the daily cutoff, with free standard shipping on orders over $100 and a 6+ month warranty.
Know your model family before ordering
International (Navistar) runs from the aero LT Series and ProStar on the highway to the DuraStar/MV medium-duty workhorses in every city fleet. The LT took over from the ProStar in 2017 — front-end parts differ between them, so match the model, not just the year.
Vocational HX/WorkStar trucks live hard lives: bumpers, mirrors, steps and lighting take damage long before the drivetrain wears out. That's exactly the class of part where a premium-quality aftermarket direct replacement saves real money over the dealer counter.
Three ways to guarantee the right fit
- VIN search: paste your International VIN into the catalog search — you get the decoded truck plus only the parts verified to fit that build.
- Cross-reference number: search the number stamped on your old part; our listings match by verified cross-references, not photos.
- Call us: (253) 600-1351 with the VIN and part number — we confirm fitment before you pay. Wrong-part returns waste a week; a 2-minute check doesn't.
Popular International categories
Browse everything that fits International in one click, or jump to the categories International owners order most.
Frequently asked questions
Are these genuine International parts?
No — PartStop sells premium-quality aftermarket direct replacements, not original-equipment products. International part numbers on our listings are used for cross-reference and identification only. Aftermarket direct replacements install on the factory mounting points and typically cost significantly less than the dealer counter.
Which International models do you cover?
LT, LoneStar, ProStar, HX and DuraStar — plus universal-fit parts (filters, lighting, air-brake components) that run on any Class 8 truck. Coverage grows monthly; if you don't see your model, call with the VIN.
How do I make sure a part fits my truck?
Use the free VIN lookup at partstop.net/vin (parts verified against your truck's build data), match the OEM / cross-reference number from your old part, or call (253) 600-1351 — fitment is checked before you buy.
How fast does PartStop ship?
In-stock orders placed before the daily cutoff ship the same business day (Monday–Saturday) from Tacoma, WA. Standard delivery typically takes ~3 business days, free on orders over $100; overnight is available on most items ($50 small / $150 medium / $300 large parcel).
Shop related parts
Premium-quality aftermarket direct replacements — nationwide same-day shipping, 6+ month warranty.
Need the part, not just the reading?
Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.