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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  |
Igniter 70401
#7

Side burner diagram

Igniter

Part #70401

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

Operating Guide 89964
#NI

Grill parts diagram

Operating guide

Part #89964

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

Flaverizer Bar, 70376
#9A

Grill parts diagram

Flaverizer bar,

Part #70376

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

Hardware 88063
#21A

Grill parts diagram

Hardware

Part #88063

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

Hose Regulator 25332
#32

Grill parts diagram

Hose regulator

Part #25332

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

Clip 42300
#13

Side burner diagram

Clip

Part #42300

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

Door Hinge 70332
#25A

Grill parts diagram

Door hinge

Part #70332

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

Hardware 67765
#28A

Grill parts diagram

Hardware

Part #67765

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

Griddle 7404
#NI

Grill parts diagram

Griddle

Part #7404

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

Hardware 60481
#29B

Grill parts diagram

Hardware

Part #60481

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…

Read more

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

Main cause: worn wheel…

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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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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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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 wheel

How to replace a gas grill wheel

Replace a broken or damaged wheel in less than 15 minutes.…

Read more
Repair difficulty
Time required
 15 minutes or less
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.…

Read more
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

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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