Dometic FreshJet 5 Series Air Conditioner Positive Temperature Coefficient Resistor (PTCR) Relay - Part# 4450037544

DometicSKU: 4450037544
Added to catalog: March 11, 2026
Last product update: July 2, 2026 at 6:18 AM
Last in stock: Apr 5, 2026
$73.99 $117.64
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Available from Dometic warehouse (152 units)
Availability details
Elkhart RV Parts warehouse0 ready to ship
Dometic warehouse152 available
Ships after Dometic warehouse processing. See the delivery estimate below for the current expected window.
FREE Delivery Estimate July 8 – July 16
1-Hour Cancellation Window

1-Hour Cancellation Window

You'll have 1 hour after placing your order to update your shipping address or cancel completely.

After that, we begin coordinating with our vendors to fulfill your order — at that point, cancellations and address changes usually aren't possible.

If you're unsure about anything, please reach out before ordering or cancel within the window.

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The FreshJet 5 Series Air Conditioner Positive Temperature Coefficient Resistor (PTCR) Relay is a genuine Dometic service part. Match part number 4450037544 and your unit model/data label before ordering.

Key Features

  • Genuine Dometic replacement service part
  • Dometic part number: 4450037544
  • Dometic catalog description: FreshJet 5 Series Air Conditioner Positive Temperature Coefficient Resistor (PTCR) Relay
  • Use only for the matching Dometic model/application

Technical Specifications

Brand Dometic
Part Number 4450037544
Dometic Catalog Name FreshJet 5 Series Air Conditioner Positive Temperature Coefficient Resistor (PTCR) Relay
Product Type Service Part

Before You Order

Dometic service part numbers can be model-specific. Verify the part number and application against your original component or unit label before purchase.

Frequently Asked Questions

Q: How do I confirm this is the right Dometic part?
A: Compare your model/data label and original component to Dometic part number 4450037544. This listing follows Dometic's catalog description.

Q: Is this interchangeable with other Dometic parts?
A: Do not assume interchangeability. Use the exact Dometic part number or confirm fitment before ordering.
100% Authentic OEM Parts

Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

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