What You're Looking At
This is a molded 90-degree hose, not a straight cut piece you bend into shape. It's got a fixed bend baked into the rubber so it routes the coolant from the radiator neck to the engine side without kinking or collapsing under vacuum. ID is 2.25 inches, and it's built with aramid fiber reinforcement instead of plain cotton braid, which matters if this truck runs hot or the hose lives anywhere near the exhaust manifold.
International used this shape across a several-year production run on certain models, which is why you'll see it under a handful of different Navistar part numbers depending on the model year and plant it came off. The hose itself didn't change - the paperwork did.
Why All These Numbers Cross
3532993C3 is the current number, but 3532993C4, C2, and C1 are the same hose under earlier revisions - Navistar re-numbers parts periodically even when the physical piece is unchanged, sometimes just a supplier or packaging change. F02522S352, 561.55993, 20731, and 70921 are the same molded hose cross-referenced through other aftermarket and industrial suppliers who cast it to the same spec.
The thing to actually check before you order is the bend angle, the length of both legs off the 90, and the ID at each end - some of these radiator hoses have a slight step or reducer built in. Don't just match the number on paper.
Surest way to confirm: pull the old hose and read the number molded into it, or pull the ID/VIN and run it. If the number's worn off, measure both leg lengths and the ID at each opening before you call it in.
Ordering From PartStop
We keep this one in stock in Tacoma for same-day will-call if you're local, and we ship it out same day nationwide if you're not - fleets running International trucks reorder this one often enough that we don't let it sit empty on the shelf.
Comes with our standard 6+ month warranty. If it's wrong for your application, we'd rather swap it before it's ruined by a shop that just crammed it on.
3532993C3 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 3532993C3. 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 | 3532993C4, 3532993C2, 3532993C1, 561.55993, 20731, 70921 |
Frequently asked questions
Does 3532993C3 fit my International 9200i?
Depends on the year and cooling package it came with. Pull the old hose and check the number cast into the rubber, or give us the VIN and we'll run it against the build sheet before you order.
Is this the same hose as the F02522S352 number?
Yes, F02522S352 cross-references to this same molded hose - different supplier catalog number, same physical part. Still worth confirming ID and leg length match your old hose before installing.
Why does the aramid reinforcement matter over a standard rubber hose?
Aramid fiber handles higher heat and pressure without ballooning or splitting at the bend, which is where a molded 90-degree hose usually fails first. If your old hose cracked right at the elbow, that's exactly why.
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.