Gas Line Trimmer

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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Browse Parts for
B28B Line Trimmers
Chainsaw Fuel Line Fitting (replaces 530-023877) 530023877
#12

Cylinder/muffler/flywheel diagram

Chainsaw fuel line fitting (replaces 530-023877)

Part #530023877

BEST SELLER
$7.76
11% OFF Phone Price : $8.76
In Stock
Line Trimmer Recoil Starter Pawl (replaces 503873302, 5038733-05, 525845601) 503873305
#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
Lawn & Garden Equipment Screw 530016449
#25

Cylinder/muffler/flywheel diagram

Lawn & garden equipment screw

Part #530016449

This item is not returnable
In Stock
Husqvarna Line Trimmer Engine Piston Ring 575227901
#64

Cylinder/muffler/flywheel diagram

Husqvarna line trimmer engine piston ring

Part #575227901

This item is not returnable
In Stock
Line Trimmer Carburetor Gasket 545008086
#5

Cylinder/muffler/flywheel diagram

Line trimmer carburetor gasket

Part #545008086

In Stock
Lawn & Garden Equipment Screw 530015805
Lawn & garden equipment screw

Part #530015805

This item is not returnable
In Stock
Lawn & Garden Equipment Screw 530015897
Lawn & garden equipment screw

Part #530015897

This item is not returnable
In Stock
Lawn & Garden Equipment Engine Carburetor Nozzle Screw 530016101
#2

Cylinder/muffler/flywheel diagram

Lawn & garden equipment engine carburetor nozzle screw

Part #530016101

This item is not returnable
In Stock
Line Trimmer Primer Bulb 530058709
#4

Cylinder/muffler/flywheel diagram

Line trimmer primer bulb

Part #530058709

$10.87
16% OFF Phone Price : $12.87
In Stock
Line Trimmer Clutch Assembly (replaces 545008038) 530055122
#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

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

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

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.

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

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

Solving 3 common problems with line trimmer cutting lines

Solving 3 common problems with line trimmer cutting lines

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

How to replace a line trimmer fuel line video

How to replace a line trimmer fuel line video

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