The SPX-300 Firebox Door Gasket is a 49" replacement seal designed to maintain proper airflow and temperature control in your Southern Pride smoker. A quality gasket prevents heat loss and smoke leakage, ensuring consistent cooking results and fuel efficiency.
This gasket is compatible with the SPX-300 firebox door and fits most Southern Pride commercial smoker models in the SPX Series. Verify your model number before ordering to ensure proper fit.
When to Replace: Inspect your gasket regularly for cracks, hardening, or gaps around the door seal. Replace annually or whenever you notice heat escaping or visible wear. A compromised gasket forces your smoker to work harder, wasting fuel and affecting temperature stability.
Installation: This is a straightforward replacement requiring basic hand tools. Most operators can install the new gasket themselves by removing the door and carefully removing the old gasket material. If you're unfamiliar with your equipment, professional installation is recommended.
All in-stock units ship via UPS from Orange, TX. Typical transit time 1–5 business days depending on your location and selected service. Large units (SP-700, SPK-1400, mobile units) may require freight — we will contact you to arrange delivery.
Will Call is also available at our warehouse: 1812 N 16th St, Orange, TX 77630 — Mon–Fri 10am–6pm (closed 1–2pm).
Southern Pride of Texas offers free technical support on all Southern Pride equipment — whether you bought it from us or not. Call us at (409) 886-8626 or visit our Support Center for manuals, service bulletins, and exploded view diagrams.
