Part Location Diagram of 845907 Briggs and Stratton Regulator
See part B-501 in the diagram
( Grid squares measure 1x1 inch )

Regulator 845907

Manufactured by:
Briggs and Stratton
ERP Number:
ERP9145774
Part Number:
845907
Original Equipment Manufacturer ?
  Works with your model  1691969!
$70.95
In Stock
Delivers in 3-5 Business Days!

Easy 

Less than 15 mins 

(8 rated repairs) ?
  Works with your model   1691969!

Product Description

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This is a geniune OEM part. The Briggs & Stratton, 10-16 amp voltage regulator is composed of metal, wiring and plastic parts. The regulator is compatible with many lawn and garden machines. This part is connected to the engine's terminals, and has been designed to manage the voltage in the device's electrical system. A screwdriver and a socket set are needed in making the removal and repair. It is recommended to refer to the manual and diagrams for repair instructions. This item is sold individually.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Briggs and Stratton
  • Toro
  • Cub Cadet
  • Simplicity
  • Lawn Boy
  • Husqvarna
  • Craftsman
  • Snapper
  • MTD
  • Ariens
This part works with the following products:
  • Engine
  • Lawn Mower
  • Lawn Tractor
  • Chainsaw
  • Generator
Part# 845907 replaces these:
393374, 394890, 691185, 797375,

Questions & Answers

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

Less than 15 mins 

(8 rated repairs) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

Battery not charging new battery

Simon from Bement, Illinois

97 of 97 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver
Parts Used:
845907
On briggs and stratton twin cylinder engine, start engine up, put engine full throttle, set multimeter to dc volts, check batter voltage. Should be greater than 12 volts. If not find the voltage regulator with 2 yellow and 1 red wire coming from it. With engine still running unplug yellow wires and switch multimeter to AC volts. The yello w wires coming from under the flywheel (the thing on top that is spinning) insert test leads into that plug. Should be somewhere around 20-30 volts. If that checks out fine, plug yellow wires back together. With engine still running at high idle, unplug the red wire from the regulator. Set multimeter to dc volts. Insert one probe in red wire from regulator and the other to the frame or a good ground. Should be greater than 12 volts. If not its the voltage regulator. Remove, unplug, plug new one in bolt in place. Run mower at high idle, check voltage at battery, should be greater than 12 volts. If batter was low to begin with let mower run at high idle for 10-15 mins and recheck.
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Not charging enough to keep electric clutch engaged tractor would also stop running

james from dyer, Tennessee

22 of 22 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers, Socket set
Parts Used:
845907
Take two bolts out of regulator disconnect wires. Replace bad one with new one
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Engine hardstarting after sitting for a week and newbattery went below voltage which made PTO quit

Roger from Saugerties, New York

8 of 8 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Socket set
Parts Used:
597338, 845907
The fuel pump bolted to the side of engine 2 screws and 3 hoses to remove very easy fix.
The voltage regulator also bolted to engine with 2 bolts a 2 yellow wire connector to the
Alternator and a Single red wire connector to the battery.
After making repairs I cranked the engine with choke engaged as usual
And wi thin 5 seconds the engine fired up it sounded so good to hear run again
Then I used my ohm meter to check the voltage at the battery it read 13.87 volts.
Now engine cranks over much faster and starts every time
So whether you order parts on line knowing the parts that you ordered
Or call customer service, they have a very knowledgeable staff they will ship you the parts you need
Also the correct and original parts at the best price around these guys ROCK
I for one am a very satisfied customer
I\'m sure they can satisfy your needs as well
Till next time
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Lights were dim

James from OXFORD, Michigan

7 of 7 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Nutdriver, Pliers
Parts Used:
845907
Removed the two screws securing the worn regulator, Unplugged terminals, attached new regulator and attached terminals. Bright lights again.
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Battery would not charge.

Melvin from Roseburg, Oregon

4 of 4 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
845907
Plugged in the part and remounted it.
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Battery not charging

Carl from Mint Hill, North Carolina

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set
Parts Used:
845907
1) Checked battery voltage prior to replacement of regulator
2) Checked alternator output - good
3) Removed old regulator and temporarily connected new regulator to alternator and battery through starter switch connection.
4) Checked charging voltage at battery and it was good.
5) Replaced connectors on both altern ator output and and new voltage regulator input to match
6) Reconnected new regulator
7) Checked output voltage at battery and battery was charging.
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Battery Would not charge while motor was running.

Daniel from WARRENTON, Missouri

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set
Parts Used:
845907
Removed and replaced voltage regulator.
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Bad regulator

Edward from Metamora, Illinois

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Socket set
Parts Used:
845907
Removed 1 10mm screw and loosened the 2nd. Unplugged the old regulator and plugged in the new one. Replaced the removed screw and tightened both.
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP9145774
Manufacturer Part Number: 845907
Brand Model Number Description
Briggs and Stratton 01191-0 Generator - Briggs & Stratton Generator Model 01191-0 (011910, 01191 0) Parts
Toro 02000 Lawn Mower - 02000/Serial: 90001-99999
Toro 02001 Lawn Mower - 02001/Serial: 80001-89999
Toro 02002 Lawn Mower - 02002/Serial: 80001-89999
Cub Cadet 0350039U Lawn Mower - Cub Cadet Lawn Mower Model 0350039U Parts
Cub Cadet 0350040U Lawn Mower - Cub Cadet Lawn Mower Model 0350040U Parts
Cub Cadet 0350041U Lawn Mower - Cub Cadet Lawn Mower Model 0350041U Parts
Cub Cadet 0350042U Lawn Mower - Cub Cadet Lawn Mower Model 0350042U Parts
Toro 04351 Chainsaw - Greensmaster 3050 2 Wheel Drive
Toro 04352 Lawn Mower - 04352/Serial: 30001-39999
Toro 04353 Lawn Mower - 04353/Serial: 30001-39999
Toro 04354 Lawn Mower - 04354/Serial: 200000001-200000600
Toro 04356 Chainsaw - Greensmaster 3100 2 Wheel Drive
Toro 04357 Chainsaw - Greensmaster 3150
Toro 08703 Lawn Mower - Toro Lawn Mower Model 08703/SERIAL: 313000001-313999999 (08703/SERIAL:313000001313999999, 08703/SERIAL: 313000001 313999999) Parts
Toro 08705 Lawn Mower - Toro Lawn Mower Model 08705/SERIAL: 313000001-313999999 (08705/SERIAL:313000001313999999, 08705/SERIAL: 313000001 313999999) Parts
Briggs and Stratton 08799-1 Generator - Briggs & Stratton Generator Model 08799-1 (087991, 08799 1) Parts
Toro 08881 Lawn Mower - 08881/Serial: 30001-39999
Toro 08881TE Lawn Mower - 08881te/Serial: 60001-69999
Toro 08884 Chainsaw - Sand Pro 2007
Toro 08885 Lawn Mower - 08885/Serial: 260000001-260999999
Toro 08886 Chainsaw - Sand Pro 5020
Toro 110-6515 Engine
Cub Cadet 1105 Lawn Mower - Cub Cadet Lawn Mower Model 1105 Parts
Briggs and Stratton 117436-0242-B1 Engine - Engine
Briggs and Stratton 117436-0242-E1 Engine - Engine
Briggs and Stratton 1191-0 Generator - 10,000 Exl Generator
Craftsman 1191-0-580327201,10 Generator - 1191-0 - 580.327201, 10,000 Exl Craftsman
Briggs and Stratton 122002-0138-B8 Engine - Engine
Briggs and Stratton 122002-0394-B1 Engine - Engine