Briggs & Stratton
Lawn & Garden Engine

Model # 33R777-0003-G1 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 33R777-0003-G1 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 224 parts  |

Lawn & Garden Equipment Engine Oil Filter (replaces 697547, 795890, Bs-696854) 696854
#1027

Cylinder/sump/crankshaft diagram

Lawn & garden equipment engine oil filter (replaces 697547, 795890, bs-696854)

Part #696854

BEST SELLER
$17.93
10% OFF Phone Price : $19.93
In Stock
Lawn & Garden Equipment Engine Inline Fuel Filter 691035
#240A

Carburetor/overhaul kit diagram

Lawn & garden equipment engine inline fuel filter

Part #691035

Replaced by #84001895

?
Manufacturer substitution
This part replaces 691035. Substitute parts can look different from the original.
BEST SELLER
$9.59
9% OFF Phone Price : $10.59
In Stock
Lawn & Garden Equipment Engine Air Filter (replaces Bs-793569) 793569
#445A

Blower housing/air cleaner diagram

Lawn & garden equipment engine air filter (replaces bs-793569)

Part #793569

BEST SELLER

Get free shipping with Automatic Reorder

$25.71
19% OFF Phone Price : $31.71
In Stock
Craftsman Lawn & Garden Equipment Engine Oil Filter (replaces 24603, 492932, 691041, 7045184yp, Bs-492932s) 492932S
#1027A

Cylinder/sump/crankshaft diagram

Craftsman lawn & garden equipment engine oil filter (replaces 24603, 492932, 691041, 7045184yp, bs-492932s)

Part #492932S

BEST SELLER
$15.30
12% OFF Phone Price : $17.30
In Stock
Lawn & Garden Equipment Engine Fuel Filter 695666
#240B

Carburetor/overhaul kit diagram

Lawn & garden equipment engine fuel filter

Part #695666

Replaced by #845125

?
Manufacturer substitution
This part replaces 695666. Substitute parts can look different from the original.
BEST SELLER
$9.27
10% OFF Phone Price : $10.27
In Stock
Lawn & Garden Equipment Engine Pre-filter (replaces Bs-793685) 793685
#967A

Blower housing/air cleaner diagram

Lawn & garden equipment engine pre-filter (replaces bs-793685)

Part #793685

BEST SELLER
This item is not returnable
$6.16
14% OFF Phone Price : $7.16
In Stock
Lawn & Garden Equipment Engine Exhaust Gasket (replaces 272293, 91309, Bs-692236) 692236
Lawn & garden equipment engine exhaust gasket (replaces 272293, 91309, bs-692236)

Part #692236

BEST SELLER
$6.56
13% OFF Phone Price : $7.56
In Stock
Lawn & Garden Equipment Engine Fuel Line (replaces 1734994sm, 327290ma, 691050, 7012638yp, 7032016yp, 7032956yp, 7041996yp, 7076272yp, 7077351yp, 791866, 798512, 809322, 809499) 791766
#187

Carburetor/overhaul kit diagram

Lawn & garden equipment engine fuel line (replaces 1734994sm, 327290ma, 691050, 7012638yp, 7032016yp, 7032956yp, 7041996yp, 7076272yp, 7077351yp, 791866, 798512, 809322, 809499)

Part #791766

BEST SELLER
$9.59
9% OFF Phone Price : $10.59
In Stock
Lawn & Garden Equipment Engine Rocker Arm Cover Gasket (replaces 272475, 692285) 272475S
Lawn & garden equipment engine rocker arm cover gasket (replaces 272475, 692285)

Part #272475S

BEST SELLER
$7.56
12% OFF Phone Price : $8.56
In Stock
Lawn & Garden Equipment Engine Crankcase Gasket 697110
#12

Cylinder/sump/crankshaft diagram

Lawn & garden equipment engine crankcase gasket

Part #697110

BEST SELLER
$9.02
10% OFF Phone Price : $10.02
In Stock

Symptoms for gas walk-behind mowers

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

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…

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

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…

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 spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 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.…