What You're Buying
This is a molded rubber elbow, 90-degree bend, built to handle coolant flow between the engine and heater core or radiator neck on Dodge P200 vans. Molded hoses like this hold their shape better than a straight piece you'd try to bend by hand - that bend is baked into the rubber so it doesn't kink or collapse under pressure.
P200 vans covered a long production run, so depending on your exact year and engine setup, the hose routing and diameter can differ slightly. Pop the old hose off and measure the ID at both ends plus the overall length before you order - don't just go by year alone.
This one's aftermarket rubber, not a dealer part, and it's built to the same dimensions as the original 56118100 elbow that came off these vans.
Why These Numbers Cross
561.18100 is the headline number stamped on the part itself or in the parts books - that's your main reference point. 561.1810 is the same number written without the trailing zero, common in older catalogs and overseas parts listings, so don't let that throw you off.
78840002 and 201363040 are supplier or bin numbers used by different aftermarket houses that packaged this same elbow shape and size. 90100MK shows up on some cross-reference sheets too - all four numbers point back to the same physical hose dimensions, not different parts.
The thing that actually matters is inside diameter and hose wall thickness at each end, plus the bend radius. If your old hose has a different ID than what's listed here, none of these numbers will help you - pull the old part and check the number stamped on it, or run your VIN, before you order.
Ordering From PartStop
We're in Tacoma and keep this elbow in stock for same-day pickup or same-day ship if you're running a route and need it now. Nationwide shipping if you're not local - doesn't matter where your van is parked.
Comes with our standard 6+ month warranty. If it doesn't match up with your old hose or the fitment's off, we'll sort it out - just don't cut the old one into pieces before you compare.
561.18100 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 561.18100. 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 |
|---|---|
| Cross-Reference | 561.1810, 78840002, 201363040, 90100MK |
Frequently asked questions
Does 561.18100 fit my Dodge P200 van?
Likely, but confirm by measuring the ID and length on your old hose or checking your VIN - the P200 ran a long time and coolant routing changed some over the years.
Is this the same as the 78840002 hose?
Same physical part, different catalog number from another supplier. Dimensions cross the same, but always compare against your old hose before installing.
My old hose is stamped 561.1810, is that the same as 561.18100?
Yes, that's just the number without the trailing zero - same part.
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.