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Carburetor Float

Part Number: 398187
Briggs and StrattonToroLawn Boy
Availability: 25+ in stock
Price: $9.85
Quantity:
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Description:
This is a genuine OEM supplied replacement part designed for use with Briggs and Stratton engines. This float controls fuel flow into the carburetor bowl by adjusting the needle valve. Includes a plastic float and a metal pin.

To complete this repair you would need a wrench and pliers.
Product Information
Manufacturer: Briggs and Stratton, Toro, Lawn Boy
Product Number: 398187
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Related Products
Compatibility

This part is compatible with the following machines:

Briggs and Stratton
Toro
38629 (310000001-310999999)(2010) Snowthrower
38629 (290000001-290999999)(2009) Snowthrower
38629 (280000001-280999999)(2008) Snowthrower
38629C (290000001-290999999)(2009) Snowthrower
38629C (280000001-280999999)(2008) Snowthrower
38637 (310000001-310999999)(2010) Snowthrower
38637 (290000001-290999999)(2009) Snowthrower
38624 (290000001-290999999)(2009) Snowthrower
38637 (280000001-280999999)(2008) Snowthrower
38637C (290000001-290999999)(2009) Snowthrower
38639 (280000001-280999999)(2008) Snowthrower
38639C (290000001-290999999)(2009) Snowthrower
38639C (280000001-280999999)(2008) Snowthrower
16400 (1000001-1999999)(1991) Lawn Mower
16400 (2000001-2999999)(1992) Lawn Mower
16400 (3900001-3999999)(1993) Lawn Mower
16400 (4900001-4999999)(1994) Lawn Mower
16400 (5900001-5999999)(1995) Lawn Mower
16400 (6900001-6999999)(1996) Lawn Mower
16401 (1000001-1999999)(1991) Lawn Mower
16401 (2000001-2999999)(1992) Lawn Mower
16401 (39000001-39999999)(1993) Lawn Mower
16401 (4900001-4999999)(1994) Lawn Mower
16401 (59000001-59999999)(1995) Lawn Mower
16401 (6900001-6999999)(1996) Lawn Mower
16401 (7900001-7999999)(1997) Lawn Mower
16401 (890000001-899999999)(1998) Lawn Mower
16402 (1000001-1999999)(1991) Lawn Mower
16403 (1000001-1999999)(1991) Lawn Mower
16403 (2000001-2999999)(1992) Lawn Mower
16404 (1000001-1999999)(1991) Lawn Mower
16404 (2000001-2999999)(1992) Lawn Mower
20010 (9900001-9999999)(1999) Lawn Mower
20010 (200000001-200999999)(2000) Lawn Mower
20011 (210000001-210999999)(2001) Lawn Mower
20020 (9900001-9999999)(1999) Lawn Mower
20020 (210000001-210999999)(2001) Lawn Mower
20021 (9900001-9999999)(1999) Lawn Mower
20021 (200000001-200999999)(2000) Lawn Mower
20021 (210000001-210999999)(2001) Lawn Mower
20022 (9900001-9999999)(1999) Lawn Mower
20022 (200000001-200999999)(2000) Lawn Mower
20022 (210000001-210999999)(2001) Lawn Mower
20023 (210000001-210999999)(2001) Lawn Mower
20023 (200000001-200999999)(2000) Lawn Mower
20023 (9900001-9999999)(1999) Lawn Mower
20023C (210000001-210999999)(2001) Lawn Mower
20025 (200000001-200999999)(2000) Lawn Mower
20025 (210000001-210999999)(2001) Lawn Mower
20025 (9900001-9999999)(1999) Lawn Mower
20027 (9900001-9999999)(1999) Lawn Mower
20027 (200000001-200999999)(2000) Lawn Mower
20027 (210000001-210999999)(2001) Lawn Mower
20028 (9900001-9999999)(1999) Lawn Mower
20028 (200000001-200999999)(2000) Lawn Mower
20028 (210000001-210999999)(2001) Lawn Mower
20029 (9900001-9999999)(1999) Lawn Mower
20030 (9900001-9999999)(1999) Lawn Mower
20030 (200000001-200999999)(2000) Lawn Mower
20035 (210000001-210999999)(2001) Lawn Mower
20042 (210000001-210999999)(2001) Lawn Mower
20042 (200000001-200999999)(2000) Lawn Mower
20042 (9900001-9999999)(1999) Lawn Mower
20043 (210000001-210999999)(2001) Lawn Mower
20043 (200000001-200999999)(2000) Lawn Mower
20043 (9900001-9999999)(1999) Lawn Mower
20045 (210000001-210999999)(2001) Lawn Mower
20048 (210000001-210999999)(2001) Lawn Mower
20101 (1000001-1999999)(1991) Lawn Mower
20183B (4900001-4999999)(1994) Lawn Mower
20212 (1000001-1999999)(1991) Lawn Mower
20213 (1000001-1999999)(1991) Lawn Mower
20213 (2000001-2999999)(1992) Lawn Mower
20214 (1000001-1999999)(1991) Lawn Mower
20214 (2000001-2999999)(1992) Lawn Mower
20215 (1000001-1999999)(1991) Lawn Mower
20215 (2000001-2999999)(1992) Lawn Mower
20216 (1000001-1999999)(1991) Lawn Mower
20217 (1000001-1999999)(1991) Lawn Mower
20217 (2000001-2999999)(1992) Lawn Mower
20218 (1000001-1999999)(1991) Lawn Mower
20218 (2000001-2999999)(1992) Lawn Mower
20322 (2000001-2999999)(1992) Lawn Mower
20327B (2000001-2999999)(1992) Lawn Mower
20328B (2000001-2999999)(1992) Lawn Mower
20433 (39000001-39999999)(1993) Lawn Mower
20434 (3900001-3999999)(1993) Lawn Mower
20434 (4900001-4999999)(1994) Lawn Mower
20435 (39000001-39999999)(1993) Lawn Mower
20435 (49000001-49999999)(1994) Lawn Mower
20435WF (39000001-39999999)(1993) Lawn Mower
20436 (39000001-39999999)(1993) Lawn Mower
20436 (49000001-49999999)(1994) Lawn Mower
20436WF (39000001-39999999)(1993) Lawn Mower
20437 (39000001-39999999)(1993) Lawn Mower
20437 (49000001-49999999)(1994) Lawn Mower
20441 (5900001-5999999)(1995) Lawn Mower
20441 (6900001-6999999)(1996) Lawn Mower
20442 (6900001-6999999)(1996) Lawn Mower
20443 (5900001-5999999)(1995) Lawn Mower
20443 (6900001-6999999)(1996) Lawn Mower
20444 (6900001-6999999)(1996) Lawn Mower
20445 (7900001-7999999)(1997) Lawn Mower
20448 (7900001-7999999)(1997) Lawn Mower
20449 (7900001-7999999)(1997) Lawn Mower
20450 (8900001-8999999)(1998) Lawn Mower
20452 (8900001-8999999)(1998) Lawn Mower
20453 (6900001-6999999)(1996) Lawn Mower
20454 (6900001-6999999)(1996) Lawn Mower
20457 (7900001-7999999)(1997) Lawn Mower
20458 (7900001-7999999)(1997) Lawn Mower

Products Compatibility

This item works with the following types of products:

  • • Engine
  • • Generator
  • • Lawn Mower
  • • Snowblower
Questions & Answers

Does this float come with the needle and pin
Bud adams
Hello Bud, thank you for your inquiry! This float 398187 does not come with the needle and pin. Those parts can be located under part 398188. I hope this information helps!
Repair Instructions: Submitted by Customers Like You
5 of 6 people found this instruction helpful
Tool Type:
Lawn Mower
Parts Used:
Pin-Float Hinge - 797622
Carburetor Float - 398187
Float Valve Kit - 398188
Gasket-Air Cleaner - 692667
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set
Hard to start, little power. Black smoke at start. Symptoms indicate flooded carb situation
Suspected problem due to ethanol damage to engine not designed to use it.
1. Drained fuel tank.
2. Removed shroud, air filter assembly and disconnected fuel line. (Good time to replace air filter)
3. Removed carburetor, noting manner of attachment of throttle linkage.
4. Disassembled float bowl from carb.
5. Removed float, needle valve and needle valve seat.
6. Remove old air cleaner gasket.
7. Thoroughly cleaned carb and parts to be reused.
8. Replace needle valve seat per instructions supplied with new part.
9. Replace float and needle valve with new parts.
10. Reassembly float bowl on carb.
11. Reattach carb to engine, including reattachment of throttle linkage.
12. Reinstall fuel line. (Note: I recommend installing an in-line fuel strainer.)
13. Reinstall air filter assembly and shroud.
14. Fill fuel tank
15. Test run engine.
Engine now starts easy and has same power as before.
I try to avoid ethanol in my small engines even in those supposedly designed for it. It's a powerful solvent and a potential troublemaker in my experience.
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3 of 3 people found this instruction helpful
Tool Type:
Engine
Parts Used:
Carburetor Float - 398187
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers, Socket set
Old fuel float was cracked and, had sank to bottom of carburetor.
Disconnect fuel line from carburetor. Remove bowl on bottom of carburetor by removing nut. Carefully, remove the pin from the float and it will come off along with the fuel needle. Then just put back together. Do this outside because you will spill a bit of gas and it will stink until it dries out.
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1 of 1 people found this instruction helpful
Tool Type:
Lawn Mower
Parts Used:
Carburetor Float - 398187
Float Valve Kit - 398188
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver
Fuel leak from carburetor.
Removed carburetor air filter
Removed carburetor
Removed float cover using half inch socket
Replaced float and needle valve and rubber bushing
Reinstalled carburetor
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1 of 1 people found this instruction helpful
Tool Type:
Pressure Washer
Parts Used:
Spark Plug - 491055S
Air Filter Cartridge - 491588S
Carburetor Float - 398187
Air Filter Pre-Cleaner - 493537S
Cover-Air Cleaner - 692584
Kit-Carb Overhaul - 695157
Repair Difficulty:
Easy
Time Spent Repairing:
1-2 hours
Tools Used:
Pliers, Socket set
Pressure washer engine left standing for 7 years, carb gummed up, air filter broken off. Gas pouring out of carb.
1) Stripped the carb, ordered parts
2) Soaked the carb parts in NAPA carb cleaner
3) reassembled using the genuine B&S parts obtained from ereplacementparts.com
4) installed new plug
5) straightened out the bent air filter bracket, installed new cover and element.
6) engine started and ran on 3rd or 4th pull
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Tool Type:
Lawn Mower
Parts Used:
Hose Clamp - 791850
Gasket-Intake - 692555
Carburetor Float - 398187
Float Valve Kit - 398188
Float Bowl Gasket - 693981
Sealing Washer - 271716
Gasket-Air Cleaner - 692667
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, old tupperware pan for parts
Briggs& Stratton motor 190cc on craftsman brand mower
1. Removed rope pull mechanism cover air breather. several 5/16 hex screws
2. Removed springs from carburetor choke mechanism.
3. Removed fuel line and fuel tank used 3/8 bolt to plug fuel line. Drained carb into cup.
3. Removed engine cover to have access to auto choke and carburetor.
4. Removed carburetor two bolts.
5. Removed carburetor float bowl,float and needle.
6. Removed existing rubber seat below needle. used e-part number kit 398188 (see e-part diagram).
7. Reassembled all parts. added Fresh Non-Ethanol gas. Runs as good as when it was new. No more surging. No other adjustments needed. Thanks e-replacement parts!
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Tool Type:
Engine
Parts Used:
Carburetor Float - 398187
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Socket set, Hook to remove valve seat
Float was not floating causing gas to leak out of carb
Remove carb off engine disassemble carb remove bad float & needle install new float & needle reassemble carb & install on engine
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Tool Type:
Lawn Mower
Parts Used:
Carburetor Float - 398187
Carburetor Overhaul Kit - 498260
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Pliers, Socket set
Water in carb and float cracked most likely froze over winter
Disassemble carb and reinstall with new parts
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Engine
Parts Used:
Carburetor Float - 398187
Float Valve Kit - 398188
Repair Difficulty:
Hard
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, Socket set
Leaked gas
1, Replaced bowl and gas line. Still leaked.
2. Replaced float and needle/Seat. Still leaked.
3. Re-seated the seat with more force. Smaller leak.
4. Re-seated the seat with More Force. Fixed.
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Thanks for voting and helping fellow customers!
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