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Lennox 19V36 SureLight Ignition Control Board Kit (LB-109531B) 19V36/69M0801/69M08/10G43

Name: Lennox 19V36 SureLight Ignition Control Board Kit (LB-109531B) 19V36/69M0801/69M08/10G43
Brand: Lennox
SKU: 66255155691
Price: 455.00 USD
Availability: InStock

Low stock: 10 left

$455.00 USD

Sale Sold out

Shipping calculated at checkout.

Lennox 19V36 kit includes wiring harnesses and ignitor

Genuine OEM Lennox 19V36 Control Kit (LB-109531B).
Includes new ignitor, wiring adapters, and diagnostic info.
Direct replacement for Y7761, 32M88, 10M93, 56L84.
Manages full furnace ignition sequence & safety checks.
Integrated LED diagnostics for easy troubleshooting.

Please visit our store for pick up.

safe & secure Checkout

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30 Day money back guarantee

Specifications

Replaces Affiliated Lennox Part Numbers 19V36 Replaces:

Lennox Category #: 19V36 The current, active category number for the replacement kit.
Lennox Model/Part #: LB-109531A Obsolete model number (superseded by LB-109531B, which is the 19V36 kit).
Lennox Catalog #: Y7761 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: 83M00 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: Y9895 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: 32M88, 32M8801 Obsolete catalog numbers
Lennox Catalog #: 12L69, 12L6901 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: 69M08, 69M0801 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: 97L48, 97L4801 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: 56L84, 56L8401 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: 10M93, 10M9301 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: 56L83, 56L8301 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: 24L85, 24L8501 Obsolete Replace with 19V36 catalog number
Lennox Catalog #: 63K89, 63K8901 Obsolete / Replace with 19V36 catalog number

Replaces Affiliated White-Rodgers Part Numbers To 21D83M-843:

White-Rodgers Kit #: 21D83M-843 The current White-Rodgers complete replacement kit number.
White-Rodgers Board #: 50A66-843 The number often found on the actual circuit board within the 21D83M-843 kit.
White-Rodgers Catalog #: 50A62-120 Obsolete/superseded number.
White-Rodgers Catalog #: 50A62-121 Obsolete/superseded number.
White-Rodgers Catalog #: 50A62-820 Obsolete/superseded number.
White-Rodgers Catalog #: 50A65-120 Obsolete/superseded number.
White-Rodgers Catalog #: 50A65-121 Obsolete/superseded number.
White-Rodgers Catalog #: 50A66-122 Obsolete/superseded number.
White-Rodgers Catalog #: 50A66-123 Obsolete/superseded number.

description

19V36 – Genuine OEM Replacement SureLight Ignition Control Kit

The Lennox 19V36 is a critical SureLight Ignition Control Board Replacement Kit for Lennox gas furnaces. Serving as the "brain" of the system, this genuine OEM part ensures the safe and efficient operation of your HVAC unit by processing thermostat signals and managing essential components like the gas valve, ignitor, and blower motor timing. This complete kit provides an integrated solution to replace obsolete control boards such as the Y7761.

This direct OEM replacement kit simplifies installation with pre-configured wiring harnesses and specific components (Model LB-109531B, ignitor, adapters). Using an authentic Lennox part guarantees seamless electrical compatibility, precise fitment, and long-term reliability that maintains the furnace's original safety certifications. Professional installation is recommended to ensure safety and proper system calibration.

Key Features and Function:

System Control Integration: Manages the furnace's operation, coordinating power delivery to all necessary components (fans, ignitors).
Genuine OEM Reliability/Fitment: A true Lennox part (LB-109531B) designed for seamless integration and peak efficiency.
Safety & Diagnostics: Integrated safety lockout mechanisms and diagnostic LEDs ensure reliable and safe operation.
Complete Upgrade Kit: Includes the control board, ignitor (like 70W16), wiring harnesses, adapters, and installation instructions/stickers.

Product Details and Key Specifications:

Part Number: 19V36 (Replaces Y7761, 10M93, 32M88, 56L84, 50A62-120)
Manufacturer: Lennox / White-Rodgers (Genuine OEM)
Part Type: SureLight Ignition Control Replacement Kit
Voltage: 24VAC Control / 120VAC Line
HP / RPM: N/A (Solid-State Control Board)
Phase / Hertz: Single-phase (1PH) / 60 Hz
Rotation: N/A
Shipping Weight: 1.8 lbs

🛠️ HVAC Depot Pro Tip: Verify Wiring Before Install

The 19V36 kit includes 9-pin to 12-pin and 4-pin to 6-pin wiring harnesses. Always take a look at the installation guide provided in the box to verify wiring configurations before purchasing or installing to ensure compatibility with your specific furnace model and prevent electrical damage.

The 19V36 is a direct OEM replacement for the following part numbers:

OEM Numbers (Lennox):

Current Active Category #:
19V36
Model/Part #:
LB-109531A (Obsolete)
Superseded Catalog #s:
Y7761, 83M00, Y9895, 32M88/32M8801, 12L69/12L6901, 69M08/69M0801, 97L48/97L4801, 56L84/56L8401, 10M93/10M9301, 56L83/56L8301, 24L85/24L8501, 63K89/63K8901.

Aftermarket/White-Rodgers Cross-Refs:

White-Rodgers Kit #: 21D83M-843
White-Rodgers Board #: 50A66-843
Superseded WR Catalog #s: 50A62-120, 50A62-121, 50A62-820, 50A65-120, 50A65-121, 50A66-122, 50A66-123.

Extensive Model Compatibility List:

Note: Use 'CTRL+F' to search for your specific model.

80MGF Series: 80MGF2-45A, 80MGF3-75A, 80MGF4/5-140A, and variations.
80UHG/UHGM Series: 80UHG2-75A, 80UHG3-60A, 80UHGM4/5-120-2, etc.
90UGFA Series: 90UGFA2-50-3, 90UGFA3-75-3, 90UGFA4/5-125-5.
G23Q Series: G23Q2-50-5, G23Q3-50-6, G23Q4/5-100-5, etc.
G24M Series: G24M2-45A, G24M3-75A, G24M4/5-100A, and variations.
G26Q Series: G26Q3-50-3, G26Q4/5-75-3, etc.
G27M Series: G27M2-60A-2, G27M3-75A-1, G27M4-100A-1.
G32Q/V Series: G32Q3-75-3, G32V3-75-3, G32V5-100-3.
G40DF/UH Series: G40DF-24A-045-2, G40UH-36A-070-3, G40UH-60D-155-01.
G41UF/G43UF/G50DF/UH/UHI/G51MP Series: Various models within these series are also compatible.
GHR26Q/GHR32Q/GHR32V Series: Including models like GHR26Q3-75-6 and GHR32Q4/5-100-3.

Specification

Refund policy

Refund & Return Policy

Last Updated: June 2026

At HVAC Parts & Equipment Depot, customer satisfaction is important to us. This Refund & Return Policy explains how returns, exchanges, and refunds are handled for purchases made through TopHVACParts.com.

Return Eligibility

We accept returns within 30 days of delivery.

To qualify for a return:

The item must be unused, uninstalled, and in its original condition.
The item must be returned in its original packaging.
Model numbers and serial numbers must match the original purchase records.
Proof of purchase or order confirmation is required.

Non-Returnable Items

The following items are not eligible for return or refund:

Installed or used parts.
Products showing signs of installation, modification, or damage caused after delivery.
Items missing original packaging.
Sale or clearance items.
Special-order or custom-order products.
Returns requested more than 30 days after delivery.

Restocking Fee

Approved returns may be subject to a 20% restocking fee.

The restocking fee will be deducted from the refund amount after the returned item has been inspected and approved.

Damaged, Defective, or Incorrect Items

If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery.

Email: support@tophvacparts.com
Phone: (214) 734-5222

We may request photographs and additional information to help process your claim.

If the claim is approved, we will provide a replacement, exchange, or refund at no additional cost to you.

Exchanges

We replace items only if they are defective, damaged upon arrival, or incorrectly shipped.

To request an exchange, contact us at:

support@tophvacparts.com

Refund Process

Once your return is received and inspected, we will notify you by email regarding approval or rejection of your refund request.

If approved:

Refunds will be issued to the original payment method.
Processing typically takes 7–14 business days after approval.
Your financial institution may require additional time before the refund appears in your account.

Return Shipping

Customers are responsible for return shipping costs unless the return is the result of:

Our shipping error,
A defective product,
A damaged product received upon delivery.

Original shipping charges are non-refundable.

We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

Professional Installation Notice

Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

Refund & Return Policy

Last Updated: June 2026

Return Eligibility

We accept returns within 30 days of delivery.

To qualify for a return:

The item must be unused, uninstalled, and in its original condition.
The item must be returned in its original packaging.
Model numbers and serial numbers must match the original purchase records.
Proof of purchase or order confirmation is required.

Non-Returnable Items

The following items are not eligible for return or refund:

Installed or used parts.
Products showing signs of installation, modification, or damage caused after delivery.
Items missing original packaging.
Sale or clearance items.
Special-order or custom-order products.
Returns requested more than 30 days after delivery.

Restocking Fee

Approved returns may be subject to a 20% restocking fee.

The restocking fee will be deducted from the refund amount after the returned item has been inspected and approved.

Damaged, Defective, or Incorrect Items

If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery.

Email: support@tophvacparts.com
Phone: (214) 734-5222

We may request photographs and additional information to help process your claim.

If the claim is approved, we will provide a replacement, exchange, or refund at no additional cost to you.

Exchanges

We replace items only if they are defective, damaged upon arrival, or incorrectly shipped.

To request an exchange, contact us at:

support@tophvacparts.com

Refund Process

Once your return is received and inspected, we will notify you by email regarding approval or rejection of your refund request.

If approved:

Refunds will be issued to the original payment method.
Processing typically takes 7–14 business days after approval.
Your financial institution may require additional time before the refund appears in your account.

Return Shipping

Customers are responsible for return shipping costs unless the return is the result of:

Our shipping error,
A defective product,
A damaged product received upon delivery.

Original shipping charges are non-refundable.

We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

Professional Installation Notice

Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

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William Bartlett

Cecil really saved me with troubleshooting tips over the phone. Thought I was going to have to replace the blower motor and ended up only needing a motor run capcitor. Thank you and God bless!

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Riley Connolly

Cecil and Fidel were absolutely amazing and so helpful. We were happy they were open on Sunday, but was impressed with their knowledge and willingness to make sure we had everything we needed. If you need parts or service or install, I would recommend.

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Cole Meger

Our AC went out during the hottest stretch of summer, and with a one-year-old at home, we were desperate for a quick fix. These guys came through big time — not only did they source the part faster than anyone else in the area, they also walked me through DIY troubleshooting while I waited. Trustworthy, knowledgeable, and run by a solid local family. As someone who owns rental properties nearby, I’ll be sourcing all my HVAC parts from them moving forward. Highly recommend!

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Carl T. Droste

Had a power outage last night and during the 100 degree heat today noticed that the AC was not blowing any cold air. Pulled the capacitors to have them checked and also took video of the relay making noise even with the breaker was off. The proprietor and her staff were very friendly and helpful. She had the video analyzed and confirmed something was wrong. She checked one of the capacitors was a little low. Capacitor replacement is the biggest ticket item for HVAC repair. It is hundreds of dollars with the a capacitor only about $20.

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Cecil and his family have been a life saver. I walked in with very little knowledge on parts let alone how to repair my unit. All I had was my brother in FL who knows more than I do and Cecil at HVAC Depot. With 2 young kids at home I couldn't afford to wait for a HVAC tech. Cecil walked me through what I needed to know, even after hours when the shop closed. I successfully repaired the fan motor and replaced the capacitor. Thank you HVAC team for being totally awesome. Prices were amazing and I'm forever going to support this small family business. You and your family are what Texas is all about!!!

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I called HVAC Depot and was absolutely blown away by the fast, courteous and exceptional service. They were very knowledgeable about explaining what they were doing and what had happened to the ac system. If you ever need a HVAC team they are best and they won’t hesitate by coming out and they won’t leave until you are happy with the service. Thank you so much for your excellent service. Kudos to you Michelle for your amazing customer service.

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Paul Hamer

My AC went out in our home on Friday night. I went out and got the capacitor details and took them here first thing Saturday morning. Lady at the counter was friendly and had the capacitor I needed! When I got home, I installed the capacitor and AC is all good!!

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Jeff Ledesma

Awesome support and had everything I needed for an older unit! Then helped me out with the DIY!! Air conditioning back up and running at 100%!!
Thanks for everything

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Frequently Asked Questions

Questions? We’ve got you covered

Can anyone buy from your store, or do I need to be a licensed contractor?

We are open to the public! Homeowners, landlords, and DIYers are all welcome—no license required.

What kinds of HVAC parts do you sell?

We carry blower motors, fan motors, capacitors, control boards, contactors, thermostats, filters, copper lines, refrigerants, and more.

Do you sell parts for specific brands like Trane, Goodman, or Lennox?

Yes, we stock OEM and compatible replacement parts for major brands including Trane, Goodman, Lennox, Carrier, Rheem, and others.

Can you help me find the right part for my system?

Absolutely! Bring in the part, model number, or a picture, and our team will help match you with the correct replacement.

Do you offer returns or exchanges on parts?

Yes, we accept returns or exchanges within a set time period—just make sure the item is unused and in original packaging. Ask for specific terms at the counter.

Do you provide technical support or installation services?

While we don't install, we can answer basic questions and refer you to trusted local HVAC technicians if needed.

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We sell certain refrigerants, but EPA regulations require certification for purchase of products like R-410A or R-22.

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Lennox 19V36 SureLight Ignition Control Board Kit (LB-109531B) 19V36/69M0801/69M08/10G43