Easy
15-30 minutes
This authentic ignition chamber assembly is specially designed for Weber Grills. It is supplied directly from original equipment manufacturer and it is sold individually. Igniter produces the spark to ignite the burner. Please note the igniter switch with a button is sold separately.
Replacing this electronic ignition module is easy and does not require any tools
• Unplug the wires from the old ignition module
• Remove old igniter and replace it with a new one from the kit
• Connect the wires and test the unit
Ignition Chamber Assembly 70643
OEM part for: Weber
Part Number: 70643
$14.59
In Stock
Ships within 1 business day 
Product Description ?
- Classification: Part
- Weight: 0.03 lbs.
- Shipping: Ships Worldwide
Compatibility
This Ignition Chamber Assembly will fit the following 273 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
Repair Videos ?
Articles:
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Having trouble getting your grill to light up? A common cause of this issue is a defective ignition switch. We'll sho...
November 08, 2012
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Customer Part Reviews ?
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Ignition Chamber Assembly
Looks like it will fit right in with no problems. We've had rain not able to install yet.
Guest -
November 15, 2022
Verified Purchase
Weber igniter switch
This is a great direct replacement igniter for your Weber grill. It took less than five minutes to remove the old rusted out one and install this new one.
Thomas -
October 23, 2021
Verified Purchase
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Old igniter worn out
Ed - September 21, 2016
👍 1 of 1 people found this instruction helpful
Tool Type
Outdoor Grill
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers
Parts Used
Removed old igniter and old wires .Installed the new one just like the old one was in.
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Ground box rusted away.
Thomas - October 24, 2021
Tool Type
Outdoor Grill
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, None
Parts Used
Removed the two wires and old ground box and installed new kit in slot and bend tab over to lock in place. Reinstall the two new wires on striker and ground and was finished.
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igniter broke
Fred - April 29, 2021
Tool Type
Outdoor Grill
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Adjustable Wrench
Parts Used
Removed old igniter and spliced in new igniter assembly.
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grill igniter burnt out
Russell - April 1, 2020
Tool Type
Outdoor Grill
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, hands
Parts Used
Removed old igniter and replaced with new. Attached 2 leads to igniter button, done! No tools needed this time.
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Our 19 year old Weber Genesis 1000 LX grill had no gas flow through the manifold from the full propane tank. We tried replacing just the fuel regulator first and that did not work.
Lisa - August 5, 2018
Tool Type
Outdoor Grill
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
We followed the directions in the owner's manual to remove the old spider guards, manifold and ignition assembly, which was very easy...just a few screws and than just installed the new manifold which had the fuel tank regulator already attached, snapped the spider guards over the valves and popped in the little ignition assembly. We were very pleased that for less than $100 a 19 year old Weber grill was back in working order. Saved a ton of money over the cost of a new Weber grill of comparable quality.
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Weber 3 burner tube and igniter replacement
Russell - May 2, 2018
Tool Type
Outdoor Grill
Difficulty
Easy
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Adjustable Wrench, Scraper
Followed the included instructions for burner removal and replacement and igniter replacement. Did thorough cleaning of interior of grill which took longer than replacement of parts. Checked for leaks with soapy water, none. Grill is like new! I have been extremely happy with eReplacementParts.com.
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Drip tray rails were rusted and broke off.
Brian - August 21, 2016
Tool Type
Outdoor Grill
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Power Drill, Nutdriver
1. Removed 4 screws holding the old rails with a power screwdriver.
2. Fastened new rail with 4 screws provided.
3. Slid knobs on
4. Pulled out old igniter and slid new one in.
2. Fastened new rail with 4 screws provided.
3. Slid knobs on
4. Pulled out old igniter and slid new one in.
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Burners were shot.
Robert - August 2, 2016
Tool Type
Outdoor Grill
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Grinder to remove old rusted screws
1. Ground off the old burners.
2. Measured the tubes.
3. Found the parts on line.
4. Reinstalled parts.
2. Measured the tubes.
3. Found the parts on line.
4. Reinstalled parts.
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Rusted out bottom rails, burners, ignition and crossover tube.
Todd - March 22, 2016
Tool Type
Outdoor Grill
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Socket set, Nutdriver
Very easy as 1-2-3!! Follow instructions that came with packaged.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
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