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Weber
Gas Grill

Model # S-420LP Official Weber gas grill

Here are the diagrams and repair parts for Official Weber S-420LP gas grill, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 91 parts  |
Hardware 67759
#36A

Grill parts diagram

Hardware

Part #67759

The manufacturer no longer makes this part, and there's no substitute part

Gas Line 81248
#18

Side burner diagram

Gas line

Part #81248

The manufacturer no longer makes this part, and there's no substitute part

Bar, 1pk 81222
#9B

Grill parts diagram

Bar, 1pk

Part #81222

The manufacturer no longer makes this part, and there's no substitute part

Knob,lrg 70377
#15

Grill parts diagram

Knob,lrg

Part #70377

The manufacturer no longer makes this part, and there's no substitute part

Burner,lp,side 70396
#28

Grill parts diagram

Burner,lp,side

Part #70396

The manufacturer no longer makes this part, and there's no substitute part

Gas Grill Flame Tamer 70375
#9

Grill parts diagram

Gas grill flame tamer

Part #70375

The manufacturer no longer makes this part, and there's no substitute part

Hardware 81802
#NI

Grill parts diagram

Hardware

Part #81802

The manufacturer no longer makes this part, and there's no substitute part

Bezel 67717
#4

Grill parts diagram

Bezel

Part #67717

The manufacturer no longer makes this part, and there's no substitute part

Frame Sppt 70350
#36

Grill parts diagram

Frame sppt

Part #70350

The manufacturer no longer makes this part, and there's no substitute part

Lid Assembly 70281
#2

Grill parts diagram

Lid assembly

Part #70281

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas grills

Choose a symptom to see related gas grill repairs.

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Why is my gas grill not hot enough?

Main causes: nearly empty fuel tank, faulty pressure regulator, burner tube clogs, bad burner tube alignment to gas valv…

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Why won't some burners light on my gas grill?

Main causes: clogged burner tubes, cracked insulators on igniter electrodes, wiring failures, bad ignition module, manif…

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What should I do about grease flare-ups in my gas grill?

Main causes: damaged or dirty flame tamers, corroded firebox, accumulated grease and debris in the grease pan…

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Do I have to replace a broken wheel on a gas grill?

Main cause: worn wheel…

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Why don't the burners on my gas grill get gas?

Main causes: empty fuel tank, tripped flow-limiting device on the pressure regulator, faulty manifold valves, burner tub…

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Repair guides for gas grills

These step-by-step repair guides will help you safely fix what’s broken on your gas grill.

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How to replace a gas grill igniter electrode

How to replace a gas grill igniter electrode

Replace the igniter electrode on your gas grill if it won’t light the burner.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a gas grill ignition module

How to replace a gas grill ignition module

Follow these steps to replace the ignition module if it doesn't produce a spark. …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a gas grill burner

How to replace a gas grill burner

Replace a damaged burner on your gas grill in less than 15 minutes and with just pliers and a screwdriver for tools.…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your outdoor grills

Use the advice and tips in these articles and videos to get the most out of your gas grill.

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What are the main parts of a gas BBQ grill?

What are the main parts of a gas BBQ grill?

Learn about the main parts of gas grills and get DIY tips for replacing gas grill parts.…

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