Dunkirk
Boiler

Model # Q90-75 SERIES 4 Official Dunkirk boiler

Here are the diagrams and repair parts for Official Dunkirk Q90-75-SERIES-4 boiler, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 99 parts  |

Sensor 240007708
#30

Boiler block assy diagram

Sensor

Part #240007708

In Stock
Boiler Integrated Control Board 14662803
#12

Base assy diagram

Boiler integrated control board

Part #14662803

$253.90
5% OFF Phone Price : $265.90
In Stock
Valve 14631307
#28

Mixer assy diagram

Valve

Part #14631307

In Stock
Adapter 12101021
#6

Exhaust assy diagram

Adapter

Part #12101021

In Stock
Panel 109008717AC
#8

Base assy diagram

Panel

Part #109008717AC

In Stock
Pipe 240006821
#NI

Exhaust assy diagram

Pipe

Part #240006821

In Stock
Temperature Valve 14622011
#4

Boiler block assy diagram

Temperature valve

Part #14622011

In Stock
Trap 240009287
#3

Drain trap assy diagram

Trap

Part #240009287

In Stock
Gasket 14631026
#5

Exhaust assy diagram

Gasket

Part #14631026

In Stock
Valve 240009323
#15

Boiler block assy diagram

Valve

Part #240009323

In Stock

Symptoms for gas walk-behind mowers

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Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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 spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

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 difficulty
Time required
 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.

Tapping into a new feature in the Search Bar on Sears PartsDirect

Tapping into a new feature in the Search Bar on Sears PartsDirect

Learn about a new feature added to the Search Bar on Sears PartsDirect…

How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Find out how to test and fix problems with the spark plug, stop wire, ignition coil and flywheel.…