F-121501 CROWN CHAMPION FURNACE IGNITER
Champion Industrial Spark Plug FI21501 supports CO₂ reduction, works with alternative gaseous fuels, and is engineered for high-compression, high-heat, and aggressive operating environments. Built for premium durability and stable ignition performance.
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Length: 3-7/8"
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Hex: 13/16
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Thread Size: 14mm
F-121501 Crown Champion Furnace Igniter
Product Overview
The F-121501 Crown Champion Furnace Igniter (Champion FI21501) is a heavy-duty industrial spark plug designed for demanding furnace and burner systems. Its robust design ensures consistent ignition, excellent spark stability, and long operational life — even in harsh, high-compression environments.
This model also supports modern efficiency standards, including CO₂-reduction initiatives and compatibility with alternative gas fuels.
✅ Key Features
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Champion FI21501 Industrial Spark Plug
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Supports CO₂ reduction & efficiency compliance
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Compatible with alternative gaseous fuels
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Designed for high-compression & extreme environments
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Long-life durable construction
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Direct replacement for multiple Champion & Desa part numbers
📊 Specifications
| Specification | Details |
|---|
| Part Number |
F-121501 |
| Brand |
Champion / Crown |
| Type |
Industrial Furnace Igniter / Spark Plug |
| Model |
FI21501 |
| Length |
3-7/8" |
| Hex Size |
13/16" |
| Thread Size |
14mm |
| Fuel Compatibility |
Standard & alternative gaseous fuels |
| Environment Rating |
High-compression / aggressive |
🔁 Replacement Chart
| Brand | Replaces Part Number(s) |
|---|
| Champion |
11557, 220, F121501 |
| Desa |
HA3012, M10962-2, PP211 |
⚠️ Common Symptoms Indicating Igniter Replacement
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Weak or inconsistent spark
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Furnace or burner failing to ignite
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Longer ignition times
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Ignition misfires during operation
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Visible electrode wear or cracking
❓ Frequently Asked Questions (FAQ)
Q: Is this a direct replacement for the Champion FI21501?
Yes — the F-121501 is the correct direct replacement.
Q: What furnaces or burners use this igniter?
It fits select Crown, Champion, and Desa heating systems requiring a 14mm industrial spark plug.
Q: Is it compatible with alternative fuel systems?
Yes — it is designed for aggressive environments and alternative gaseous fuels.
Q: Does this help improve system efficiency?
Yes — stable, clean ignition supports CO₂-reduction performance goals.
🛒 Shopping Tips
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Verify your furnace or burner’s part number before ordering
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Replace igniters annually for best performance
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Inspect for corrosion, cracking, or electrode wear
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Keep a spare on hand for emergency service situations
