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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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Model diagram and schematic

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ALL PARTS
Showing 10 of 266 parts  |
Elbow Sp Plg 66538

#636

All parts diagram

Elbow sp plg

Part #66538

Replaced by #66538S

?
Manufacturer substitution
This part replaces 66538. Substitute parts can look different from the original.
This item is not returnable
$5.11 | 
16% OFF Phone Price : $6.11
In Stock
Spark Plug 298809

#337

All parts diagram

Spark plug

Part #298809

Replaced by #CJ8

?
Manufacturer substitution
This part replaces 298809. Substitute parts can look different from the original.
This item is not returnable
$2.15 | 
55% OFF MSRP : $4.80
In Stock
Plug Oil Fil 66768

#21

All parts diagram

Plug oil fil

Part #66768

Replaced by #281658S

?
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
Float Carb 298514

#103

All parts diagram

Float carb

Part #298514

Replaced by #692265

?
Manufacturer substitution
This part replaces 298514. Substitute parts can look different from the original.
This item is not returnable
$16.89 | 
11% OFF Phone Price : $18.89
In Stock
Gas Vlv Cvr 27803

#9

All parts diagram

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
Lock Washer 90366

#189

All parts diagram

Lock washer

Part #90366

The manufacturer no longer makes this part, and there's no substitute part

Washer 221944

#738

All parts diagram

Washer

Part #221944

Replaced by #690402

?
Manufacturer substitution
This part replaces 221944. Substitute parts can look different from the original.
$8.14
In Stock
Pump 390665

#387

All parts diagram

Pump

Part #390665

Replaced by #791885

?
Manufacturer substitution
This part replaces 390665. Substitute parts can look different from the original.
$117.72
In Stock
Seal Plunger 68768

#722

All parts diagram

Seal plunger

Part #68768

Replaced by #68768

?
Manufacturer substitution
This part replaces 68768. Substitute parts can look different from the original.
$27.71
In Stock
Pin Std. 299691

#28

All parts diagram

Pin std.

Part #299691

Replaced by #299691

?
Manufacturer substitution
This part replaces 299691. Substitute parts can look different from the original.
This item is not returnable
$25.20
In Stock

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