12Q51 Briggs and Stratton Engine - Overview

Models starting with 12Q51

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Parts for models starting with 12Q51

$8.95

Guide-Rope

Part #205912GS

$11.95

Kit-needle/seat

Part #398188

Genuine manufacturer approved carburetor needle valve for lawn and garden equipment engines. This item includes the seat. The needle valve opens and closes to control the flow of fuel into the carburetor. Make sure to disconnect the spark plug wire and drain all gasoline from the carburetor and fuel tank before starting a repair.

$7.95

Plug-welch

Part #694468

$12.95

Plug-Spark Ems

Part #692720

$88.95

Engine Recoil Starter Assembly

Part #497680

This authentic OEM starter assembly is designed for use with lawn and garden engines and is sourced directly from the original manufacturer to ensure quality and compatibility. The assembly includes a durable plastic shroud/housing, starter pulley, recoil spring, pull rope with grip, and the necessary hardware for installation. It functio...Read more

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$31.95

Jet-main

Part #497466

This is a genuine Briggs & Stratton replacement part. The main jet is designed by the manufacturer for use in engines such as those found in blowers and lawnmowers. This part is made of metal, and comes with a plastic gasket. It is used to control the flow of fuel in the carburetor when the engine is running. You may require a wrench when replacing this item.

$222.95

Sump-engine

Part #498983

$11.95

Filter-a/c Foam

Part #493537S

Genuine Manufacturer Sourced replacement part used on a variety of Briggs and Stratton Engines. This filter adds a second layer of protection against airborne-dirt particle ingestion. This is a Foam Pre-Cleaner which is Sold Individually. Please note a Paper Filter and a Cover are both Sold Separately.

$7.95

Retainer-Gov Shaft

Part #690340

$372.95

Crankshaft

Part #691457

$13.95

Seal-oil

Part #399781S

This is an authentic replacement part manufactured for use with small engines. Seals can deteriorate overtime, and it is recommended to replace worn seals when servicing an engine. This seal is the lower seal in the engine's sump, the seal is sold individually.

$15.95

Deflector-muffler

Part #393760

This is a genuine Briggs & Stratton and Toro replacement part for use in engines, lawn mowers, and lawn tractors. The muffler deflector is made out of metal. A wrench may be needed during the replacement of this item. It will need to be replaced if it breaks. This item is sold individually.

Common Symptoms of models starting with 12Q51

How this model fails, and the parts that fix it.

Will Not Start

Fixed by
these parts

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Cannot pull starter cord out or engine will not turn over

Fixed by
these parts

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Repair Tips From Fixers Like You

See how others fixed this model. Time, tools, difficulty, and steps that lead to victory! View More

starter rewind cord broke

15 of 22 people found this instruction helpful.

Seikai from MARICOPA, CA
A Bit Difficult
1- 2 hours
Nutdriver, Pliers, Screw drivers, Socket set, Wrench (Adjustable), Wrench set

I found the model number of the Briggs & Stratton engine on the inside of the engine housing. Ordered a new starter-rewind unit, as the old cord broke and the thing was well worn. The instructions were clear enough, but to get the old starter off I had to drill out four rivets, which just spin around when you try. I used a hacksaw, chisel ... Read more

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The Spring-choke Return was not the right part.

2 of 12 people found this instruction helpful.

Linda from Louisville, KY
Very Difficult
1- 2 hours
Pliers

The repair did not happen. The item number PS9294414 was the wrong
part. When I looked up the model number of 126-T02-0625-B1 engine after I tried to install it. The PartSelect answer was that they no longer had parts for 126-T02-0625-B1 engine any more. Do I need to send the
Spring-Choke Return and get my refund back. If so h ... Read more

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