What igniter fits my ICP furnace?

The correct replacement for ICP model WPG4304040RKB1 — OEM 1186861 / 1177663 | Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your ICP equipment which lists the model number WPG4304040RKB1 — OEM 1186861 / 1177663 | Ships Today.

My furnace will not ignite. What part is bad?

A furnace that will not ignite after the draft inducer runs typically has a failed igniter. The hot surface igniter should glow bright orange within 60 seconds. If it does not glow at all, it is cracked or burned out. If it glows weakly, it is degrading and should be replaced preventively. Average lifespan: 3 to 7 years.

ICP

ICP Hot Surface Igniter for WPG4304040RKB1 — OEM 1186861 / 1177663 | Ships Today

Name: ICP Hot Surface Igniter for WPG4304040RKB1 — OEM 1186861 / 1177663 | Ships Today
Brand: ICP
SKU: 1186861
Price: 44.20 USD
Availability: InStock

SKU: 1186861 Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This OEM hot surface igniter is the direct ignition source for the ICP / Tempstar / Heil WPG4304040RKB1 packaged gas furnace. When the thermostat calls for heat, the control board energizes the igniter, which glows to roughly 2,000°F and lights the gas burners. Over thousands of heating cycles the silicon-carbide or silicon-nitride element becomes brittle and develops hairline cracks, leading to no-heat calls, delayed ignition, or the furnace locking out after several failed ignition attempts. Replacing a worn igniter restores reliable, on-demand ignition. This listing covers OEM part numbers 1186861 (control board igniter) and 1177663 (ignitor), the factory-correct components for this model.

Specifications

Spec	Value
Part Numbers	1186861, 1177663
Type	Hot Surface Igniter
Brand	ICP / Tempstar / Heil
Fits Model	WPG4304040RKB1
Application	Gas Furnace Ignition
Fit	OEM Direct Replacement

Compatibility

Engineered as a direct-fit replacement for the ICP / Tempstar / Heil WPG4304040RKB1 packaged gas furnace. The same igniter platform is shared across many ICP-family WPG-series units; always confirm your model and OEM part number before ordering.

Installation Guide

Safety First — Disconnect power at the unit disconnect and shut off the gas supply. Verify zero voltage with a multimeter.
Access — Remove the furnace blower/control service panel.
Document — Photograph the igniter bracket position and wire routing before disconnecting.
Remove — Unplug the igniter connector and remove the mounting screw(s); lift the old igniter out without touching the element with bare fingers.
Install — Mount the new igniter at the same depth and angle, handling it only by the ceramic base, and reconnect the plug per your photo.
Test — Restore gas and power, run a heat cycle, and confirm the igniter glows and lights the burners promptly.

Signs You Need a Replacement

Furnace blower runs but no heat is produced
Visible cracks or breaks in the igniter element
Delayed ignition or a soft "poof" at startup
Furnace locks out after repeated failed ignition attempts

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

ICP Hot Surface Igniter for WPG4...

$44.20

Frequently Asked Questions

Does this Igniter fit my ICP WPG4304040RKB1 — OEM 1186861 / 1177663 | Ships Today?

Yes. This is the factory-specified OEM igniter for the ICP WPG4304040RKB1 — OEM 1186861 / 1177663 | Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the igniter on my ICP WPG4304040RKB1 — OEM 1186861 / 1177663 | Ships Today?

Difficulty: Medium (20–30 min)
Step 1: Turn off power and gas. Step 2: Open furnace panel. Step 3: Locate igniter near burners. Step 4: Disconnect two-wire plug. Step 5: Remove mounting screw. Step 6: Install new igniter — do NOT touch element with fingers. Step 7: Reconnect, close panel, restore power/gas.

My furnace won’t ignite. What part is bad?

Furnace won’t ignite after the draft inducer runs = failed igniter. The hot surface igniter should glow bright orange within 60 seconds. No glow = cracked/burned out. Weak glow = degrading. Average lifespan: 3–7 years. Replacement: $15–$40 DIY.

Is this igniter compatible with Bryant or Payne too?

Many ICP parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my ICP igniter?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

Menu