Easy
15-30 minutes
This replacement sear knob assembly is a genuine OEM item that is specially designed for Weber grills. It fits over the regulator shaft to provide control over the burner. Please note this durable plastic knob assembly is sold individually.
Sear Knob Assembly - Light Gra 40255403
OEM part for: Weber
Part Number: 40255403
$15.74
In Stock
Ships within 1 business day 
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This Sear Knob Assembly - Light Gra will fit the following 16 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 16 of 16 matching models.
16 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Weber
This item works with the following types of products:
Repair Videos ?
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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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Weber Sear Knob
Great website for aftermarket grill parts. Exact match and perfect fit.
Guest -
April 25, 2023
Verified Purchase
Reasonable Price
Same as original knob at the best price found for new.
Guest -
February 8, 2023
Verified Purchase
Old out new in
Simple quick change. Like new.
Bill -
May 6, 2022
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.
Wind damage
David - March 19, 2023
Tool Type
Outdoor Grill
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, Nutdriver, Adjustable Wrench, None
Remove damaged manifold and replace with new one. Replaced hose.
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GRILL BLEW OVER IN A STORM AND BROKE OFF ALL THE VALVES, SO I ALSO UPGRADED SOME OTHER ITEMS AS WELL
DAVID - January 25, 2021
Tool Type
Outdoor Grill
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Power Drill
Parts Used
- Warming Rack - 65054
- Hardware For Burner Tubes And - 62774
- Burner Tube Set - 62752
- Hardware For Manifold - 62781
- Main Control Knob Kit - 88848
- Stainless Steel Flavorizer Bar - 62784
- Sear Burner Tube - 62753
- Manifold Assembly - 62762
- Heat Shield For Cookbox - 62765
- Sear Knob Assembly - Light Gra - 40255403
STARTED WITH THE VALVE BANK AND HEAT SHIELD
EVERYTHING ELSE WAS EASY
CAME WITH GOOD INSTRUCTIONS
EVERYTHING ELSE WAS EASY
CAME WITH GOOD INSTRUCTIONS
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Old knobs
Mark - July 9, 2020
Tool Type
Outdoor Grill
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, None
Remove and install new
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My grill got knocked over and broke off knobs and manifold got broken where knobs connect
Kevin - August 8, 2017
Tool Type
Outdoor Grill
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set
I followed the great instructions included with parts
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The grill was knocked over in extremely high winds and all of the controls for the burners were bent or snapped off
David - February 4, 2017
Tool Type
Outdoor Grill
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, Adjustable Wrench
I removed the necessary components to access the gas manifold bolt locations, disconnected the gas supply lines, and removed the damaged unit. Just follow the instructions provided and you will back in operation in no time.
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Old knobs not looking good
William - January 4, 2017
Tool Type
Outdoor Grill
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Pliers
Just remove the old knobs and replace them with the new ones.
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The tube broke. The knobs broke.
Rerngsak - June 8, 2016
Tool Type
Outdoor Grill
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers
Take the broken tube out and put a new one in. Take the old control knobs out and put the new one in.
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Strong wind storm knocked my Weber e330 over damaging parts listed above.
BRIAN - December 6, 2015
Tool Type
Outdoor Grill
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, Nutdriver, Adjustable Wrench, Used my 3/8 18 volt impact gun
Really it's straight forward I was doing this in about 20 degree weather not to mention and was still very easy.. What I really liked about the parts I received is they come with new hardware ( bolts) as well .. Great idea just for the fact existing hardware does get rusty from the heat so I would recommend having a socket set vs just a screw driver .. More than likely removing old parts will result in stripped screws etc.. So that why I would use sockets .. Never took apart a grill before but with common sense it is easy .. It's for sure much more cost effective than replacing entire grill.. My grill would of been around 800 bucks to replace it .. I bought my parts and working as good as new for 150 bucks .. Very good site to buy parts from ..
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Learn MoreOur product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
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.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
