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Model # B28B Official McCulloch trimmer
Here are the diagrams and repair parts for Official McCulloch B28B trimmer, as well as links to manuals and error code tables, if available.
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B28B Line Trimmers
#12
Cylinder/muffler/flywheel diagram
Chainsaw fuel line fitting (replaces 530-023877)
Part #530023877
$7.76 |
11% OFF Phone Price : $8.76
In Stock
#11
Cylinder/muffler/flywheel diagram
Line trimmer recoil starter pawl (replaces 503873302, 5038733-05, 525845601)
Part #503873305
$34.36 |
15% OFF Phone Price : $40.36
In Stock
#25
Cylinder/muffler/flywheel diagram
Lawn & garden equipment screw
Part #530016449
This item is not returnable
$5.97
In Stock
#64
Cylinder/muffler/flywheel diagram
Husqvarna line trimmer engine piston ring
Part #575227901
This item is not returnable
$11.97
In Stock
#5
Cylinder/muffler/flywheel diagram
Line trimmer carburetor gasket
Part #545008086
$19.97
In Stock
Lawn & garden equipment screw
Part #530015805
This item is not returnable
$5.54
In Stock
Lawn & garden equipment screw
Part #530015897
This item is not returnable
$5.97
In Stock
#2
Cylinder/muffler/flywheel diagram
Lawn & garden equipment engine carburetor nozzle screw
Part #530016101
This item is not returnable
$7.97
In Stock
#4
Cylinder/muffler/flywheel diagram
Line trimmer primer bulb
Part #530058709
$10.87 |
16% OFF Phone Price : $12.87
In Stock
#57
Cylinder/muffler/flywheel diagram
Line trimmer clutch assembly (replaces 545008038)
Part #530055122
This item is not returnable
$27.98 |
18% OFF Phone Price : $33.98
In Stock
Symptoms for gas line trimmers
Choose a symptom to see related grass line trimmer repairs.
Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…
Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…
Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…
Repair guides for gas line trimmers
These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

How to rebuild a line trimmer carburetor
If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…
Repair difficulty
Time required
15 minutes or less

How to replace a line trimmer carburetor
If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these …
Repair difficulty
Time required
15 minutes or less

How to replace a line trimmer fuel line
The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…
Repair difficulty
Time required
15 minutes or less
Articles and videos for gas line trimmers
Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Follow these tips to prevent the cutting line on your grass line trimmer from breaking or feeding out too much or too li…

Follow the steps in this video to replace a leaking fuel line in a line trimmer.…