Photo may vary slightly — verify by part number before ordering.12P505B03 — WaterFurnace FP1RK01 Kit-Thermistor Freeze Sensor Yellow 84
WaterFurnace has discontinued part 12P505B03.
Replaced by: 12P560-05
Order replacement 12P560-05 — contact us →Overview
Discontinued — replaced by 12P560-05. WaterFurnace no longer supplies 12P505B03; order the direct factory replacement 12P560-05 instead.
Fits WaterFurnace models including NDH026B101CSL, NDH026B101CSR, NDH038A101CER, NDH038B111NSL, NDH049A111NSR, NDH072A101NEL, NDV026B101CTR, NDV038A101CTR and 25 more. These are the units we've confirmed — not the only models this part fits. Contact us for the entire compatibility list, or if you don't see your unit, send us the model and serial number and we'll confirm before you order.
Fits These Units
Confirmed to fit the WaterFurnace units below — and these are not the only models this part fits. Contact us for the entire compatibility list, or if you don't see your unit, send the model and serial and we'll confirm before you buy.
- NDH026B101CSL
- NDH026B101CSR
- NDH038A101CER
- NDH038B111NSL
- NDH049A111NSR
- NDH072A101NEL
- NDV026B101CTR
- NDV038A101CTR
- NDV038A111CTL
- NDV038A111NTL
- NDV038B111NTR
- NDV049A101NTL
- NDV049A111CTL
- NDV049A111CTR
- NDV049A111NTL
- NDV049A141CTR
- NDV064A101CTL
- NDV064A111CTL
- NDV064A111CTR
- NDV064A111NTL
- NDV064A111NTR
- NDV064A141CTL
- NDV072A111CTR
- NDV072A111NRR
- NDV072A111NTR
- NDV072A141CTR
- NDZ064A11AC
- NSV036A111CTL
- NSZ036A11AC
- NSZ042A11AC
- SDV038B121CTLAP
- SDV049B122CTL
- SDV064B121CTR
Specifications
| Manufacturer | WaterFurnace |
|---|---|
| Part Number | 12P505B03 |
| Description | FP1RK01 Kit-Thermistor Freeze Sensor Yellow 84 |
| Category | Misc. Refrigeration |
| Qty per Unit | 1 |
| Condition | New — Factory OEM |
| Availability | Discontinued |
Ask the Parts Desk
Not sure this fits? Need more than what's in stock? Send the model and serial from the unit's data plate — a real person reads it and confirms before you order.
Common Questions
Is the stock number on this page real?
Yes — it's the live count from our own shelf, not an availability estimate. If it says 1, that's how many are physically here. When it hits zero, this page says so.
Is this a genuine WaterFurnace part, or aftermarket?
Genuine OEM stock sourced through WaterFurnace's authorized parts program — not an aftermarket substitute.
How do I confirm this fits my unit?
Match part number 12P505B03 to your unit's parts diagram. If unsure, send us your model and serial number and we'll verify before you order.
What's the warranty on this part?
Warranty terms vary by manufacturer. Contact us with your order number for details specific to this part.
How fast does this ship?
In-stock items ship the same business day on orders placed before 1pm ET, Monday–Friday. Standard ground delivers to most of the continental US in 2–5 business days.
Does everything ship UPS or FedEx Ground?
Most orders ship UPS or FedEx Ground. A small number of large or heavy parts across the catalog ship by truck freight instead — that's still free, and we reach out to arrange a delivery window before those orders leave the warehouse.
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