What This Hose Is and Where It Lives
This is a straight run, no bends, 3" inside diameter, 4-ply reinforced silicone, sold as a 3-foot stick. Trucks use straight sections like this in coolant routing between the radiator, water pump, surge tank, or in charge air cooler piping depending on how the shop plumbed it originally. Because it's straight and uncut, one part number covers a lot of different length needs on Kenworth T660/T680/T800 and Peterbilt 379/386/389 chassis - you trim it to the length you need with a sharp blade and a straightedge.
4-ply means four layers of reinforcement fabric between the silicone, which is what lets it handle the pressure and heat cycling without ballooning or splitting where a cheaper 2-ply hose would eventually let go, especially in coolant systems running higher glycol percentages or up around 15-18 psi cap pressure.
Why These Numbers Cross and What to Check
D10302728 is the number you'll find stamped or printed on the Kenworth/Peterbilt side of the parts counter. The cross numbers - 24848, EH22648, 561.09300, H42-300, 57248 - come from different silicone hose manufacturers and heavy-duty parts suppliers who all built to the same 3" ID x 3-ply-or-better straight hose spec. They interchange because the ID, wall construction, and length are matched, not because one company copied another's part number.
Since this is a straight stick with no molded bends or specific hard points, fitment is more forgiving than an elbow - but you still need to confirm ID matches your old hose exactly (3" is 3", no rounding) and that 3 feet gives you enough length after you account for cutting square ends and clamp clearance. If your old hose has a step, bead, or reducer molded in, this straight stick won't replace it - you'd need a different molded piece.
Surest way to confirm: measure your old hose's ID with calipers or a tape at the widest point of the split, not guess from memory, and check the number stamped on it if there is one. Bring the old hose to the counter or send us a picture - that beats cross-referencing off memory every time.
Ordering From PartStop
We keep this one in stock in Tacoma for same-day counter pickup, and we ship it out same day nationwide if you're calling in from out of state or another yard. Silicone hose doesn't have a shelf life issue like rubber does, so what's on the shelf is good stock, not old stock.
Comes with our standard 6+ month warranty against manufacturing defects - not against a bad install or a hose clamp that wasn't torqued right. If you're not sure this is the right ID or length for your application, call before you order and we'll walk through it with you rather than have you cut a hose you can't return.
D10302728 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to D10302728. 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 | 24848, EH22648, 561.09300, H42-300, 57248 |
Frequently asked questions
Does D10302728 fit my Peterbilt 389?
Depends on the year and how that truck's cooling system was plumbed - some 389s run 3" ID straight sections here, others run a different diameter or a molded elbow instead of straight hose. Pull your old hose, measure the ID, and check for any part number stamped on it before you order. If you give us the VIN we can also check it against build records.
Is this the same hose as EH22648?
Same spec - 3" ID, straight, comparable reinforcement - just a different manufacturer's part number. They cross-reference because they're built to the same dimensions, not because they're the identical hose off the same line. Either will fit if your old hose is truly 3" ID straight, no reducers or bends.
Can I cut this hose shorter if I don't need the full 3 feet?
Yes, that's the point of selling it as a stick - use a sharp utility knife or hose cutter, cut square, and don't leave it ragged where the clamp seats or you'll get a slow weep six months from now.
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.