Briggs & Stratton
Lawn & Garden Engine

Model # 300420 TO 300425 (0510 - 0518) Official Briggs & Stratton gas engine

Here are the diagrams and repair parts for Official Briggs & Stratton 300420-TO-300425-0510-0518 gas engine, as well as links to manuals and error code tables, if available.

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ALL PARTS
Showing 10 of 266 parts  |

Plug Oil Fil 66768

#21

All parts diagram

Plug oil fil

Part #66768

Replaced by #281658S

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Manufacturer substitution
This part replaces 66768. Substitute parts can look different from the original.
This item is not returnable
$5.79
15% OFF Phone Price : $6.79
In Stock
Oil Seal 68838

#524

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Oil seal

Part #68838

Replaced by #281370S

?
Manufacturer substitution
This part replaces 68838. Substitute parts can look different from the original.
This item is not returnable
$11.80
14% OFF Phone Price : $13.80
In Stock
Gas Vlv Cvr 27803

#9

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Gas vlv cvr

Part #27803

Replaced by #27803S

?
Manufacturer substitution
This part replaces 27803. Substitute parts can look different from the original.
This item is not returnable
$5.80
15% OFF Phone Price : $6.80
In Stock
Crtrdg Ar Cl 390930

#445

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Crtrdg ar cl

Part #390930

Replaced by #393957S

?
Manufacturer substitution
This part replaces 390930. Substitute parts can look different from the original.
This item is not returnable
$27.06
18% OFF Phone Price : $33.06
In Stock
Elment Filtr 270782

#536

All parts diagram

Elment filtr

Part #270782

Replaced by #271794S

?
Manufacturer substitution
This part replaces 270782. Substitute parts can look different from the original.
This item is not returnable
$8.49
11% OFF Phone Price : $9.49
In Stock
Sprg-ex/vlv 26828

#35

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Sprg-ex/vlv

Part #26828

Replaced by #691597

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Manufacturer substitution
This part replaces 26828. Substitute parts can look different from the original.
In Stock
Wire Ground 295413

#356

All parts diagram

Wire ground

Part #295413

Replaced by #398808

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Manufacturer substitution
This part replaces 295413. Substitute parts can look different from the original.
This item is not returnable
$19.69
9% OFF Phone Price : $21.69
In Stock
Lead Primary 298141

#640

All parts diagram

Lead primary

Part #298141

Replaced by #398808

?
Manufacturer substitution
This part replaces 298141. Substitute parts can look different from the original.
This item is not returnable
$19.69
9% OFF Phone Price : $21.69
In Stock
Gasket 27381

#52

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Gasket

Part #27381

Replaced by #27381S

?
Manufacturer substitution
This part replaces 27381. Substitute parts can look different from the original.
This item is not returnable
In Stock
Spring 26018

#340

All parts diagram

Spring

Part #26018

Replaced by #26018

?
Manufacturer substitution
This part replaces 26018. Substitute parts can look different from the original.
In Stock

Symptoms for treadmills

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Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your lawn & garden engines

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Top questions about Sears and Sears PartsDirect

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What are the main components of a lawn mower?

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