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Dunkirk Q90-100 boiler & storage tank Parts
Here are the diagrams and repair parts for Dunkirk Q90-100 boiler & storage tank, as well as links to manuals and error code tables, if available.
Installation guide
Owner’s manual
By Schematic
SELECT DIAGRAM
Browse Parts for Q90-100 Boiler & Storage Tank
Boiler block/piping assy diagram
Elbow
Part #146-93-040
The manufacturer no longer makes this part, and there's no substitute part
Mixer/air pressure switch assy diagram
Air Baffle,k90100
Part #425-31-100
The manufacturer no longer makes this part, and there's no substitute part
Boiler block/piping assy diagram
Stud 1/4-20x1-1/4"
Part #146-95-805
The manufacturer no longer makes this part, and there's no substitute part
Boiler block/piping assy diagram
Gasket
Part #146-31-021
The manufacturer no longer makes this part, and there's no substitute part
Flue adapter/exhauster assy diagram
Tee
Part #146-31-305
The manufacturer no longer makes this part, and there's no substitute part
Jacket/base assy diagram
Plug 3"
Part #146-31-175
The manufacturer no longer makes this part, and there's no substitute part
Mixer/air pressure switch assy diagram
Tube Elbow 1/2"npt
Part #146-31-103
The manufacturer no longer makes this part, and there's no substitute part
Boiler block/piping assy diagram
Bushing 3/4x1/2"
Part #146-93-004
The manufacturer no longer makes this part, and there's no substitute part
Flue adapter/exhauster assy diagram
Vent Switch Gasket
Part #146-31-028
The manufacturer no longer makes this part, and there's no substitute part
Jacket/base assy diagram
Front Panel Blue
Part #750-00-1020
The manufacturer no longer makes this part, and there's no substitute part
Symptoms for gas walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…
Repair guides for gas walk-behind mowers
These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.
How to replace a lawn mower front deck tray
Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.…
Repair time and Difficulty
60 minutes or less
How to replace a lawn mower transmission
Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…
Repair time and Difficulty
60 minutes or less
How to replace a lawn mower flywheel key on a flathead engine
When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…
Repair time and Difficulty
45 minutes or less
Articles and videos for gas walk-behind mowers
Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.
Pull cord stuck after tipping your mower? You might’ve locked the engine. This video shows how to fix a lawn mower pull …
Learn about a new feature added to the Search Bar on Sears PartsDirect…
Your lawn mower will last longer and run better if you take these steps before storing it for winter.…
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