Briggs & Stratton
Lawn & Garden Engine

Model # 40R577-0003-H1 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 40R577-0003-H1 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 177 parts  |

Lawn & Garden Equipment Engine Inline Fuel Filter 691035
Lawn & garden equipment engine inline fuel filter

Part #691035

Replaced by #84001895

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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
Craftsman Lawn & Garden Equipment Engine Oil Filter (replaces 24603, 492932, 691041, 7045184yp, Bs-492932s) 492932S
Craftsman lawn & garden equipment engine oil filter (replaces 24603, 492932, 691041, 7045184yp, bs-492932s)

Part #492932S

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$15.30
12% OFF Phone Price : $17.30
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Lawn & Garden Equipment Engine Air Filter 591334
Lawn & garden equipment engine air filter

Part #591334

Replaced by #594201

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Manufacturer substitution
This part replaces 591334. Substitute parts can look different from the original.
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$18.84
10% OFF Phone Price : $20.84
In Stock
Lawn & Garden Equipment Engine Fuel Line (replaces 1734994sm, 327290ma, 691050, 7012638yp, 7032016yp, 7032956yp, 7041996yp, 7076272yp, 7077351yp, 791866, 798512, 809322, 809499) 791766
Lawn & garden equipment engine fuel line (replaces 1734994sm, 327290ma, 691050, 7012638yp, 7032016yp, 7032956yp, 7041996yp, 7076272yp, 7077351yp, 791866, 798512, 809322, 809499)

Part #791766

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In Stock
Lawn & Garden Equipment Engine Starter Motor (replaces 392744, 392749, 494325) 497595
Lawn & garden equipment engine starter motor (replaces 392744, 392749, 494325)

Part #497595

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$107.23
10% OFF Phone Price : $119.23
In Stock
Lawn & Garden Equipment Engine Oil Seal (replaces 791892, Bs-795387) 795387
Lawn & garden equipment engine oil seal (replaces 791892, bs-795387)

Part #795387

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$9.02
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Lawn & Garden Equipment Engine Intake Valve Push Rod (replaces 498746) 690982
Lawn & garden equipment engine intake valve push rod (replaces 498746)

Part #690982

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$9.91
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Vacuum Hose 797408
Vacuum hose

Part #797408

Replaced by #596163

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Manufacturer substitution
This part replaces 797408. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$11.78
15% OFF Phone Price : $13.78
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Lawn & Garden Equipment Engine Voltage Regulator (replaces 797375, Bs-797375, Bs-845907) 845907
Lawn & garden equipment engine voltage regulator (replaces 797375, bs-797375, bs-845907)

Part #845907

$67.66
8% OFF Phone Price : $73.66
In Stock
Crankcase Gasket 591911
Crankcase gasket

Part #591911

Replaced by #594195

?
Manufacturer substitution
This part replaces 591911. Substitute parts can look different from the original.
$56.79
10% OFF Phone Price : $62.79
In Stock

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

Main causes: faulty unloader valve, bad pressure regulator…

Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…

Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…

Main causes: broken recoil spring, damaged recoil starter…

Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…

Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…

Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…

Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…

Repair guides for gas pressure washers

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

How to install a pressure washer chemical injection kit

How to install a pressure washer chemical injection kit

The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…

Repair difficulty
Time required
 15 minutes or less
How to install a pressure washer O-ring kit

How to install a pressure washer O-ring kit

O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…

Repair difficulty
Time required
 45 minutes or less
How to replace a pressure washer pump

How to replace a pressure washer pump

The pump can be damaged by air in the inlet water supply or by chemicals that remain in the pump body after using the ch…

Repair difficulty
Time required
 15 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 pressure washer.

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Top questions about Sears and Sears PartsDirect

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

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What are the main components of a lawn mower?

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