Flame Sensors & Ignitors

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3,300+ Products In Stock — Ships Today from Memphis, TN

Flame Sensors & Ignitors — Electrodes, Flame Rods
& Spark Ignitors for Commercial & Industrial Burners

Shop 3,300+ flame sensors and ignitors including spark ignitors, electrodes, flame rods, igniter assemblies, and OEM cross-reference replacement parts. We stock Crown Engineering, Maxon, U.S. Ignition, and Honeywell — with the deepest Crown Engineering electrode and flame rod inventory in the mid-South. Free same-day shipping from Memphis, TN since 1967.

Stocking distributor: Crown Engineering Maxon U.S. Ignition Honeywell
Talk to an Expert Call (901) 458-2000
3,300+ Electrodes & Ignitors In Stock OEM Cross-Reference Ready Free Same-Day Shipping In Business Since 1967
OEM Cross-ReferenceCrown Engineering replaces Maxon, Eclipse, Auburn, Westwood & more — we match it daily
3,300+ ProductsThe deepest electrode & flame rod inventory in the mid-South — Crown, Maxon, USI
Minimize DowntimeFailed electrode or ignitor means a burner down — in-stock parts ship same day
Same-Day ShippingOrders by 2 PM CT ship same day — always free
Can't find your part number? We cross-reference it.

Crown Engineering electrodes and flame rods are direct OEM replacements for Maxon, Eclipse, Auburn, Champion, Westwood, and more. Give us your old part number and we'll find the right replacement — call or contact us.

Get a Cross-Reference Call (901) 458-2000

Flame Sensor & Ignitor Brands We Stock

Crown Engineering, Maxon, and U.S. Ignition are stocked in the main category — with Crown Engineering as the dominant line covering 3,291 electrodes, flame rods, and igniters. Honeywell flame sensors and ignitors are available in their own subcategory. Find your brand below or contact our team for cross-reference help.

Crown Engineering
Electrodes, Flame Rods, Igniters & Rajah Connectors — 3,291 Products

Crown Engineering is our largest line — and one of the largest manufacturers of electrodes, igniters, and flame rods for ignition applications in oil and gas-fired equipment. Their catalog is built around OEM cross-reference replacements for virtually every major burner brand including Maxon, Eclipse, Auburn, Champion, Westwood, Gordon-Piatt, and Power Flame.

Crown's product line covers spark ignitor assemblies, standard electrodes, flame rods, Rajah-style connectors, and ignition wire used in commercial boilers, process burners, industrial ovens, and waste oil equipment. The CA and FRS series are their most common flame rod families — CA432 replaces Auburn FRS-4-4 & Eclipse 13093-6, CA430 replaces Maxon 47743; the I-series covers Auburn-type spark plugs.

CA Series Flame RodsFRS Series Flame RodsI-Series IgnitersRajah ConnectorsElectrodesIgnition Wire
Maxon
OEM Spark Ignitors & Flame Sensors — 54 Products

Maxon OEM spark ignitors and flame sensors are used in Maxon industrial burners found in process heaters, ovens, dryers, and commercial boiler applications. We stock genuine Maxon ignition parts including the 42148, 18110, 18117, 47789, 47232, 25663, 37160, 34043, MX34042, 39829, 39782, and 25445 spark ignitors and flame rods.

If you need a direct OEM Maxon replacement, we stock it. If you're looking for a more cost-effective cross-reference, Crown Engineering makes direct replacements for many Maxon ignitor and flame rod part numbers — contact us for a cross-reference quote.

Maxon 42148Maxon 18110Maxon 18117Maxon 47789Maxon 25663Maxon 47232
U.S. Ignition
Ignition Electrodes & Assemblies — 36 Products

U.S. Ignition manufactures ignition electrodes and assemblies for commercial and industrial combustion applications. Their products are commonly used as replacement ignition parts in gas-fired boilers, furnaces, and burner systems.

We stock 36 U.S. Ignition products covering their standard electrode and ignitor assembly range. If you're working on a system that originally specified U.S. Ignition parts, we can help you locate the right replacement. Contact us for availability on specific models.

Ignition ElectrodesIgnitor AssembliesCombustion Ignition
Honeywell
Flame Sensors, Flame Rods & Hot Surface Ignitors

Honeywell flame sensors and ignitors are used in residential and light commercial heating equipment including furnaces, boilers, and water heaters. Their product line covers flame sensors (flame rods), hot surface ignitors (HSI), and pilot assemblies used with Honeywell gas controls and ignition systems.

Honeywell flame sensors use flame rectification to detect pilot or main burner flame — a small current flows through the flame when present, confirming ignition to the control board. Common in residential furnaces and package boilers with direct spark or hot surface ignition systems.

Flame SensorsHot Surface IgnitorsFlame RodsPilot Assemblies

Types of Flame Sensors & Ignitors We Stock

From spark ignitors to flame rods to hot surface ignitors — we cover every ignition component in the burner system. Not sure what you need? Call our team or give us your old part number and we'll find the right replacement.

Spark Ignitors & Electrodes

High-voltage spark electrodes used to ignite pilot and main burner flames. Auburn-type spark plugs (I-series), standard ceramic electrodes, and ignitor assemblies for gas and oil burners.

Flame Rods (Flame Sensors)

Flame rectification sensors that prove pilot or main burner flame by conducting microamp current through the ionized flame to ground. CA-series and FRS-series flame rods for industrial burners.

Hot Surface Ignitors (HSI)

Silicon carbide or silicon nitride ignitors used in residential and commercial furnaces and boilers. Replace failed HSI elements for direct spark ignition (DSI) systems.

Ignitor Assemblies

Complete ignitor assemblies combining electrode, ceramic insulator, and mounting hardware. Crown CA200, CA250 series and Maxon assemblies for industrial process burners.

Rajah Connectors & Ignition Wire

Rajah-style high-voltage ignition cable connectors and ignition wire for burner and boiler spark systems. Crown Engineering stocks the full Rajah connector range and ignition cable.

OEM Cross-Reference Replacements

Crown Engineering direct replacements for Maxon, Eclipse, Auburn, Gordon-Piatt, Power Flame, Westwood, and Champion parts. Same fit, form, and function at competitive prices.

Common OEM Cross-References We Stock

Crown Engineering manufactures direct replacement electrodes, flame rods, and igniters for most major burner OEM part numbers. Below are some of the most frequently requested cross-references — contact us for any part not listed.

Crown / Auburn PartReplaces OEM Part(s)Type
I-31-1Maxon 23739 / Eclipse 16927 / Champion F-121508 / USI P-5022Auburn Spark Plug Ignitor
CA432Auburn FRS-4-4 / Eclipse 13093-6Flame Rod
CA432-1Maxon 59174Flame Rod
CA431-2Eclipse 13093-5Flame Rod
CA434Auburn FRS-4-6 / Maxon 22427Flame Rod
CA430Maxon 47743 / Auburn FRS-4 w/ 2" A-DimFlame Rod
CA415Maxon 43079Flame Rod
CA471Eclipse 13047-1 / USI P-5035Spark Ignitor
CA635Auburn I-10-25 / Eclipse 18460Spark Ignitor
CA341Maxon 47232Spark Ignitor
CA330IP-19 Igniter / Maxon 25663Spark Ignitor
CA232Eclipse 12568 / Auburn I-25-4Spark Ignitor
CA200Westwood I-18 / Auburn IA-9-CIgniter Assembly
CA141Auburn I-6-6 (6" tip)Spark Ignitor
CA100Auburn I-2 / USI R6042 / Champion 0-5-30Igniter / Flame Rod
MX1081869Maxon 1081869Maxon Igniter Replacement
MX1081870Maxon 1081870Maxon Igniter Replacement
FRS-4-6Auburn FRS-4-6 — 6" flame rod, ¼" NPT, 2350°F ratedFlame Rod
F-121501Champion F-121501 furnace ignitorChampion Ignitor
J99Champion J99 spark plugChampion Spark Plug

Don't see your part? Contact our team — we cross-reference hundreds of OEM part numbers daily.

Popular Models & Part Numbers

View all 3,300+ →
Crown I-31-1Replaces Maxon 23739 / Eclipse 16927 Crown CA432Replaces Auburn FRS-4-4 / Eclipse 13093-6 Crown CA432-1Replaces Maxon 59174 Crown CA431-2Replaces Eclipse 13093-5 Crown CA430Replaces Maxon 47743 Crown CA415Replaces Maxon 43079 Crown CA635Replaces Auburn I-10-25 / Eclipse 18460 Crown MX1081869Replaces Maxon 1081869 Crown MX1081870Replaces Maxon 1081870 Auburn FRS-4-66" Flame Rod, ¼" NPT, 2350°F Crown CA141Auburn I-6-6 Igniter (6" tip) Crown CA434Replaces Auburn FRS-4-6 / Maxon 22427 Crown CA471Replaces Eclipse 13047-1 / USI P-5035 Crown CA341Replaces Maxon 47232 Crown CA330Replaces IP-19 Igniter / Maxon 25663 Crown CA232Replaces Eclipse 12568 / Auburn I-25-4 Crown CA200Replaces Westwood I-18 / Auburn IA-9-C Crown CA100Replaces Auburn I-2 / USI R6042 Maxon 4214812.25" Electrode Spark Ignitor Maxon 18110OEM Spark Ignitor Maxon 18117Flame Rod — Industrial Burner Maxon 4778914mm Spark Ignitor — Kinedizer LE Maxon 25663OEM Spark Ignitor Maxon 472325.875" Igniter Crown J99Champion Spark Plug Crown F-121501Champion Igniter USI R6050Replaces I-18 / CA200 / OP-10 U.S. IgnitionIgnition Electrodes & Assemblies Honeywell HSIHot Surface Ignitors & Flame Sensors

Flame Sensors & Ignitors

Ensure the safety and efficiency of your heating systems with our comprehensive selection of flame sensors and ignitors. These critical components are designed to detect flames accurately and ignite fuel systems reliably, making them essential for a variety of industrial and residential applications.

Quality and Reliability

Each flame sensor and ignitor in our collection is crafted from high-quality materials and undergoes stringent testing to guarantee performance in demanding environments. Whether you need a flame sensor for your residential furnace or an industrial ignitor for an HVAC unit, we have the perfect solution for you.

Product Range

Explore our diverse range of products, including:

Browse our selection to find the ideal flame sensor or ignitor that meets your specific requirements. Maintain operational safety and efficiency with our trusted components today.

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  • Maxon 42148 Spark Ignitor — 12.25" Electrode for Immersion-Style Burners
    Quick view

    Maxon

    SKU: 42148

    42148

    $109.99
    3 in stock
  • Maxon 37160 Spark Igniter — 6" with Spark Disk
    Quick view

    Maxon

    SKU: 37160

    37160

    $89.99
    3 in stock
  • R6050 Igniter — 1/2-14 NPT | Replacement for I-18, CA200, OP-10
    Quick view

    U.S. Ignition

    SKU: R6050

    R6050

    $47.60
    2 in stock
  • Maxon 59174 Flame Rod Replacement Burner Sensor
    Quick view

    Maxon

    SKU: 59174

    59174

    $89.99
    8 in stock
  • Maxon 47789 Spark Ignitor — 14mm for Kinedizer LE Burners
    Quick view

    Maxon

    SKU: 47789

    47789

    $69.99
    2 in stock
  • Maxon 47232 Igniter — 5.875" Without 0.375" Tip Ignitor
    Quick view

    Maxon

    SKU: 47232

    47232

    $81.99
    17 in stock
  • Maxon 39829 Spark Ignitor — 6" Length
    Quick view

    Maxon

    SKU: 39829

    39829

    $73.99
    4 in stock
  • Honeywell Maxon 39782 Spark Ignitor — For OP2, KM, and OPLE Burners OEM Spark Ignitor for Maxon Industrial Burner Systems
    Quick view

    Maxon

    SKU: 39782

    39782

    $85.99
    2 in stock
  • Maxon 34043 Spark Ignitor For OvenPak II 400 Burners
    Quick view

    Maxon

    SKU: 34043

    34043

    $89.99
    7 in stock
  • Maxon 25445 Spark Ignitor — 9.88" Electrode
    Quick view

    Maxon

    SKU: 25445

    25445

    $69.99
    2 in stock
  • Maxon 18117 Flame Rod | Industrial Flame Sensing
    Quick view

    Maxon

    SKU: 18117

    18117

    $115.99
    28 in stock
  • Maxon 18110 Spark Ignitor Self-Grounding. Crosses with Auburn I-101, Eclipse 16160, Crown CA500, Champion UY-6.
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    Maxon

    SKU: 18110

    18110

    $91.99
    8 in stock
  • Crown Engineering WCC-1138-L
    Quick view

    Crown Engineering

    SKU: WCC-1138-L

    WCC-1138-L

    $116.20
    2 in stock
  • Crown Engineering J99 CHAMPION SPARK PLUG
    Quick view

    Crown Engineering

    SKU: J99

    J99

    $45.99
    3 in stock
  • Crown Engineering I-31-1 Auburn Igniter
    Quick view

    Crown Engineering

    SKU: I-31-1

    I-31-1

    $44.99
    2 in stock
  • Crown Engineering FRS-4-6 AUBURN FLAME ROD
    Quick view

    Crown Engineering

    SKU: FRS-4-6

    FRS-4-6

    $69.99
    2 in stock
  • Crown Engineering F-121501 Champion Igniter
    Quick view

    Crown Engineering

    SKU: F-121501

    F-121501

    $34.99
    5 in stock
  • Crown Engineering CA471 Igniter Replaces Eclipse #13047-1
    Quick view

    Crown Engineering

    SKU: CA471

    CA471

    $78.08
    2 in stock
  • Crown Engineering CA434 FLAME ROD / REPL AUBURN FRS-4-6
    Quick view

    Crown Engineering

    SKU: CA434

    CA434

    $37.99
    2 in stock
  • Crown Engineering CA432-1 Flame Rod / Maxon 59174 – Burner Flame Sensor Replacement
    Quick view

    Crown Engineering

    SKU: CA432-1

    CA432-1

    $54.99
    6 in stock
  • Crown Engineering CA330 Igniter — Auburn IP-19 / Maxon 25663 Replacement
    Quick view

    Crown Engineering

    SKU: CA330

    CA330

    $54.99
    2 in stock
  • Crown Engineering CA232 Igniter / Eclipse 12568
    Quick view

    Crown Engineering

    SKU: CA232

    CA232

    $54.99
    38 in stock

Flame Sensors & Ignitors — Frequently Asked Questions

Common questions about flame sensors, electrodes, ignitors, and OEM cross-references. Can't find your part? Contact our team or call (901) 458-2000 — we cross-reference daily.

What is the difference between a flame rod and a UV flame scanner?

A flame rod uses flame rectification — a small AC voltage applied to the rod allows microamp current to flow through the ionized combustion gases to ground when flame is present, proving flame to the burner control. Flame rods are used for close-coupled pilot and main burner sensing in most commercial boilers and gas-fired equipment. A UV flame scanner detects ultraviolet radiation from combustion and is used in industrial burner management systems (like the Honeywell 7800-Series) where the scanner is mounted remotely. Flame rods are simpler and less expensive; UV scanners are more reliable on large industrial burners with varying fuel inputs.

What does Crown Engineering replace?

Crown Engineering makes direct OEM replacement electrodes, flame rods, and igniters for virtually every major burner brand. Common crosses include: Crown I-31-1 replaces Maxon 23739, Eclipse 16927, and Champion F-121508; Crown CA432 replaces Auburn FRS-4-4 and Eclipse 13093-6; Crown CA432-1 replaces Maxon 59174; Crown CA430 replaces Maxon 47743; Crown CA471 replaces Eclipse 13047-1; Crown CA200 replaces Westwood I-18. They also cover Gordon-Piatt and Power Flame parts. Call us at (901) 458-2000 with your OEM part number and we'll find the Crown equivalent.

What is a hot surface ignitor and when do I replace it?

A hot surface ignitor (HSI) is a silicon carbide or silicon nitride element that glows red-hot when energized to ignite the gas burner — common in residential furnaces, commercial rooftop units, and light commercial boilers. Signs it needs replacement: the burner fails to light, the ignitor glows but flame doesn't ignite, visible cracking, or low amperage draw. HSIs are fragile — handle only by the ceramic base, never the element. We stock Honeywell and other HSI replacements.

What is a Rajah connector?

A Rajah connector is a high-voltage ignition cable connector used to connect ignition wire to spark electrodes and ignition transformers in burner and boiler ignition systems. The Rajah style features a spring-loaded snap-on connection providing a secure, vibration-resistant high-voltage contact. Crown Engineering stocks the full range of Rajah-style connectors and matching high-voltage ignition wire for commercial and industrial burner service.

Can I use a Crown Engineering flame rod instead of the OEM part?

In most cases, yes. Crown Engineering builds their flame rods and igniters to meet or exceed OEM specifications for fit, form, and function. Their CA and FRS series flame rods are direct replacements for Auburn, Maxon, Eclipse, and other OEM parts with the same ceramic insulator dimensions, rod diameter, rod length, and connector style. Crown parts are widely accepted by combustion service contractors as OEM-equivalent replacements. If you are unsure, call us at (901) 458-2000 — we cross-reference OEM part numbers daily.

For emergencies, outside of business hours, call #901-604-7069