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Austroflamm Z12388 Low Limit Switch Gasket for Pellet Stoves -- NBK 20551

Austroflamm Z12388 low limit switch gasket for pellet stoves, NBK Parts 20551, fits switches 13-1122 and 13-1123
Austroflamm Z12388 Low Limit Switch Gasket For Pellet Stoves
 
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Part Number: Z12388
Manufacturer: Austroflamm

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AustroflammPart Z12388NBK 20551Austroflamm Z12388 Low Limit Switch Gasket for Pellet Stoves

A precise OEM-spec replacement gasket that seals your pellet stove's low limit switch assembly, restoring proper thermal sensing and safe stove operation. If your Austroflamm stove is showing erratic shutdowns or the low limit switch area shows heat damage or leakage, this gasket is the correct service part.

Keep Your Pellet Stove Running Safely

The low limit switch in your Austroflamm pellet stove is a critical safety component -- it monitors combustion temperatures and shuts the stove down if temps fall outside safe operating ranges. The gasket that seals this switch to the stove body is subjected to repeated heat cycles and can harden, crack, or compress over time, leading to air leaks, inaccurate sensor readings, or nuisance shutdowns.

The Austroflamm Z12388 replaces that gasket with a correctly dimensioned part engineered for the Austroflamm switch assembly. It is a direct match for the two most common Austroflamm low limit switch variants -- part numbers 13-1122 and 13-1123 -- making it the right choice whether you are performing routine maintenance or diagnosing a fault.

Direct OEM Fitment

Designed specifically for Austroflamm pellet stoves. Matches the seating profile of low limit switches 13-1122 and 13-1123 with no trimming or modification needed.

Safety-Critical Seal

Maintains a proper air seal around the switch penetration, preventing false readings and protecting accurate low-limit shutoff function.

Lightweight Service Part

Weighs just 0.05 lbs -- a small part that plays an outsized role in pellet stove reliability and safety.

Also Listed as NBK 20551

Cross-referenced in the NBK Parts catalog as part number 20551, making it easy to verify compatibility across supplier databases.

Correct Gasket, First Time: This gasket is purpose-built for the Austroflamm low limit switch assembly. It is not a universal cut-to-fit piece -- dimensions match the OEM profile so installation is straightforward for a technician or confident DIYer.
Compatible Switch Part Numbers: Verify that your existing low limit switch is one of the following before ordering:
  • Austroflamm Switch 13-1122
  • Austroflamm Switch 13-1123
If your switch part number differs from these two, confirm compatibility before purchasing.
Maintenance Tip: When servicing the low limit switch -- whether replacing the switch itself or just the gasket -- inspect the surrounding combustion chamber surface for carbon buildup or warping. A clean, flat seating surface ensures the new gasket seals properly and extends service life.

Part Identification

ManufacturerAustroflamm
Part NumberZ12388
Cross-Reference (NBK)NBK Parts 20551
SKU20551

Physical Specifications

Weight0.05 lbs

Compatibility

ApplicationAustroflamm pellet stoves
Fits Low Limit Switch13-1122
Fits Low Limit Switch13-1123

What's in the Box

Included1x Z12388 low limit switch gasket
Not IncludedLow limit switch (sold separately)
Not IncludedMounting hardware
Important Information
  • This gasket fits low limit switches 13-1122 and 13-1123 only -- confirm your switch part number before ordering.
  • The low limit switch itself is NOT included; this listing is for the gasket seal only.
  • Pellet stove components involve high-temperature and combustion environments. If you are not experienced with pellet stove service, have installation performed by a qualified technician.
  • Always allow the stove to cool completely before disassembling the switch area or replacing the gasket.
  • Ensure the mating surface is clean and undamaged before installing the new gasket to achieve a proper seal.


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