Briggs & Stratton
Lawn & Garden Engine

Model # 42D707-1280-01 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 42D707-1280-01 engine, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 193 parts  |

Filter 394358

#240

All parts diagram

Filter

Part #394358

Replaced by #394358S

?
Manufacturer substitution
This part replaces 394358. Substitute parts can look different from the original.
BEST SELLER
$6.91
13% OFF Phone Price : $7.91
In Stock
Cartridge 394019

#445

All parts diagram

Cartridge

Part #394019

Replaced by #394019S

?
Manufacturer substitution
This part replaces 394019. Substitute parts can look different from the original.
BEST SELLER
$27.42
15% OFF Phone Price : $32.42
In Stock
Element 272490

#535

All parts diagram

Element

Part #272490

Replaced by #272490S

?
Manufacturer substitution
This part replaces 272490. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.50
18% OFF Phone Price : $5.50
In Stock
Gear 394348

#219

All parts diagram

Gear

Part #394348

Replaced by #793338

?
Manufacturer substitution
This part replaces 394348. Substitute parts can look different from the original.
BEST SELLER
$34.42
13% OFF Phone Price : $39.42
In Stock
Key 222698

#24

All parts diagram

Key

Part #222698

Replaced by #222698S

?
Manufacturer substitution
This part replaces 222698. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock
Lawn & Garden Equipment Engine Starter Motor (replaces 394674, 394808) 497596

#309

All parts diagram

Lawn & garden equipment engine starter motor (replaces 394674, 394808)

Part #497596

BEST SELLER
$140.27
7% OFF Phone Price : $150.27
In Stock
Carburetor 491539

#121

All parts diagram

Carburetor

Part #491539

Replaced by #694056

?
Manufacturer substitution
This part replaces 491539. Substitute parts can look different from the original.
BEST SELLER
$40.98
11% OFF Phone Price : $45.98
In Stock
Stator 393474

#474

All parts diagram

Stator

Part #393474

Replaced by #592831

?
Manufacturer substitution
This part replaces 393474. Substitute parts can look different from the original.
BEST SELLER
$101.70
9% OFF Phone Price : $111.70
In Stock
Elbow Spacer Plug 66538

#635

All parts diagram

Elbow spacer plug

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
Retainer 263080

#615A

All parts diagram

Retainer

Part #263080

Replaced by #691265

?
Manufacturer substitution
This part replaces 263080. Substitute parts can look different from the original.
This item is not returnable
$8.99
10% OFF Phone Price : $9.99
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

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…

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

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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 transmission

How to replace a lawn mower transmission

Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…

Repair difficulty
Time required
 60 minutes or less
How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower ignition coil on a flathead engine

How to replace a lawn mower ignition coil on a flathead engine

If the spark plug doesn't fire when you try to start the mower, you could have a defective ignition coil. Follow these s…

Repair difficulty
Time required
 30 minutes or less

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

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…