Dometic S/D21 Battery Ignition Service Kit - Part# 50800

DometicSKU: 50800
Added to catalog: March 11, 2026
Last product update: June 16, 2026 at 11:11 PM

Sale price$36.71 Regular price$58.37
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In stock (61 units), ready to be shipped
FREE Delivery Estimate June 20 – June 23
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.

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The Dometic S/D21 Battery Ignition Service Kit is an essential maintenance component for Dometic water heaters and furnaces that rely on battery-powered ignition systems. This complete service kit includes all the replacement parts needed to restore reliable spark ignition performance in your RV's heating appliances, ensuring consistent operation during camping trips and full-time travel.

Key Features

  • Complete service kit with all necessary ignition components
  • Compatible with Dometic S/D21 series water heaters and furnaces
  • Battery-powered ignition system for reliable cold-weather startup
  • OEM Dometic parts ensure proper fit and performance
  • Includes spark electrode, igniter module, and related hardware
  • Professional-grade quality for long-lasting dependability

Technical Specifications

Specification Details
Part Number 50800
Manufacturer Dometic
System Type Battery Ignition
Compatible Models Dometic S/D21 Series
Kit Type Complete Service Kit

Frequently Asked Questions

Q: How do I know if my ignition system needs this service kit?
A: If your Dometic water heater or furnace is having trouble igniting, clicking repeatedly without lighting, or failing to start in cold weather, the ignition components in this kit likely need replacement. Regular maintenance every 2-3 years also helps prevent ignition failures.

Q: Will this kit work on my specific Dometic model?
A: This kit is designed for Dometic S/D21 series appliances. Check your water heater or furnace manual or the model plate to confirm compatibility before ordering. Our team can help verify fitment if you're unsure.

Q: Is professional installation required?
A: While some RV owners with mechanical experience can install this kit, we recommend having a qualified RV technician perform the work to ensure proper assembly and safe operation of your heating system.

Why Choose Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts for RV owners who demand reliability. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock genuine OEM Dometic components and provide expert support to help you find the exact part you need. When your RV's heating system matters, trust the specialists.

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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