Keep your Dometic RV furnace operating efficiently with this genuine OEM Furnace Door Gasket Kit. A worn or missing gasket allows heat to escape and reduces furnace performance, making this a critical maintenance part for any RV owner relying on their heating system. This kit replaces the deteriorated seal on your SD Series furnace door, restoring proper insulation and combustion efficiency.
- Genuine OEM Dometic replacement gasket kit
- Designed specifically for SD Series furnace doors
- Prevents heat loss and improves furnace efficiency
- Easy installation—no special tools required
- Restores proper door seal to reduce energy waste
- Essential maintenance item for reliable winter heating
| Specification | Details |
|---|---|
| Part Number | 33321 |
| Furnace Series | Dometic SD Series |
| Component Type | Door Gasket Kit |
| Material | High-temperature gasket material |
| OEM Status | Genuine Dometic OEM part |
Frequently Asked Questions
Q: How do I know if my furnace door gasket needs replacement?
A: Signs include visible cracks or deterioration in the gasket, heat escaping around the door, or your furnace running longer to reach desired temperatures. If the gasket no longer forms a tight seal, replacement is needed.
Q: Is this gasket kit difficult to install?
A: No. This is a straightforward replacement that most RV owners can complete in under 30 minutes. Simply remove the old gasket, clean the door surface, and install the new gasket kit. Your furnace manual includes detailed installation steps.
Q: Will this gasket work on all Dometic SD Series furnaces?
A: Yes, this OEM gasket kit is designed to fit all Dometic SD Series furnaces. However, always verify your furnace model matches the SD Series designation before ordering to ensure proper fit.
Why Choose Elkhart RV Parts
We specialize in hard-to-find Dometic RV replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part we sell is genuine OEM Dometic stock, backed by our expert support team. When you need the exact part to keep your RV running, we're here to help.
| Brand | Dometic |
|---|---|
| Product type | Furnace Door Gasket Kit |
| Part number | 33321 |
| Compatible series | SD Series |
| Compatible models | SD20SD35 |
| Oem | true |
| Installation type | Replacement |
| Installation difficulty | DIY |
| Function | Door seal for furnace |
| Product category | Service Parts |
| New arrival | true |
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.