What You're Getting
This is the passenger (curb) side heated power mirror for the International LT day cab and sleeper models, 2018 through 2024. Full assembly - housing, power motor for remote adjustment, and heating element built into the glass so it clears ice and fog in the winter.
LT trucks went through a few running changes over that model span, so mirror arm length and the wiring pigtail connector aren't always identical year to year. That's exactly why International and the aftermarket both carry a handful of numbers for what's functionally the same mirror.
This one bolts up passenger side only - don't order it for the driver's door, the wiring and glass curvature are mirrored (no pun intended) and won't work on the other side.
Why These Numbers Cross
3554041 is the number you'll see most often at the parts counter, and it's what this listing is built around. 4188583C91 is International's own part number for the same mirror, which is why the two show up together in cross-reference books. INN-919B-RS32 and 563.55102 are the same physical mirror under different aftermarket house brands - same mounting pattern, same motor, same heat element.
3554042 and 3554043 are close relatives - could be a running change in the connector or a minor bracket difference. They're worth checking against your old part, but don't assume they're interchangeable without comparing the plug and mounting holes side by side.
Bottom line: before you order, pull the number off your old mirror bracket or run your VIN. Don't go off memory or off what the last driver said was on there - LT mirrors changed enough over six years that a visual match isn't good enough.
Ordering From PartStop
We're in Tacoma and keep this one in stock for same-day pickup or same-day ship if you're local. Ship nationwide too if you're not near us - most orders go out same business day.
This is an aftermarket mirror assembly, not a factory International part, and we're not going to tell you it's a guaranteed fit sight unseen - that's why we keep hammering the VIN/part number check. What we will tell you is it carries a 6+ month warranty, so if the motor or heat element craps out early, you're covered.
Questions about your specific VIN or year, call the counter - we've got the cross-reference books open all day and would rather spend five minutes on the phone than have you send a mirror back.
3554041 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 3554041. Use them to identify the part — then confirm the exact fit by VIN or the number stamped on your old unit before you order. An interchange is a starting point, not a fitment guarantee.
| Brand / Line | Cross-Reference Numbers |
|---|---|
| OE/Cross-Ref | INN-919B-RS32, 563.55102 |
| Cross-Reference | 3554042, 3554043 |
Frequently asked questions
Does 3554041 fit my 2019 International LT day cab?
Likely, but confirm before ordering. LT mirrors had some running changes through 2018-2024 on arm length and connector style, so check the number off your old mirror or run your VIN with us to be sure.
Is this the same mirror as the INN-919B-RS32 brand?
Yes, INN-919B-RS32 is a different aftermarket brand's number for the same mirror assembly - same mount, motor, and heating element. It's listed as a cross-reference for that reason.
Will this mirror work on the driver's side too?
No. This is the passenger side only - the housing shape and wiring are mirrored for that door. You'd need the driver's side part number for the other side.
Not sure it fits? We check before you pay.
Run your VIN and we’ll match parts to your exact truck, or call the counter — a person who knows trucks verifies fitment by OEM number before the order ships. No wrong-box returns.
More cross-reference guides
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.