HomeAir and Fuel Delivery > CarburetionHygrade FL31 Carburetor Float
Part #: FL31

Hygrade FL31 Carburetor Float

⚙️ 78 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Celica, Corolla, Corona, Land Cruiser, and Pickup
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Reliable Carburetor Float for Toyota Aisan 2 bbl Carburetors

The Hygrade FL31 carburetor float is designed specifically for Aisan 2 bbl carburetors used in various Toyota models. Crafted from durable Nitrophyl material, this float ensures consistent fuel level regulation for optimal engine performance.

Key Features of the Hygrade FL31 Carburetor Float

  • Compatible with Toyota Celica, Corolla, Corona, Land Cruiser, and Pickup models
  • Designed for Aisan 2 bbl carburetor applications
  • Constructed from Nitrophyl for reliable fuel resistance and durability
  • Part number FL31 for precise identification and fitment
  • Maintains proper fuel level to prevent flooding or fuel starvation

Detailed Product Description

The Hygrade FL31 carburetor float is engineered to meet the specifications of Aisan 2 bbl carburetors found in select Toyota vehicles. The Nitrophyl material used in this float offers excellent resistance to fuel absorption and deformation, which helps maintain consistent float height and fuel delivery. This precision component plays a critical role in regulating the fuel level inside the carburetor bowl, directly impacting engine efficiency and drivability. Using the correct float like the FL31 ensures that your Toyota Celica, Corolla, Corona, Land Cruiser, or Pickup carburetor operates within manufacturer tolerances.

Common Applications and Issues Addressed

  • Prevents carburetor flooding caused by a stuck or saturated float
  • Eliminates fuel starvation issues due to improper float height
  • Helps maintain smooth engine idling and acceleration
  • Reduces rough running conditions linked to inconsistent fuel delivery
  • Supports proper carburetor function in Toyota Aisan 2 bbl systems

Installation Notes and Tips

When replacing the carburetor float with the Hygrade FL31, ensure the float height is adjusted according to the vehicle’s service manual specifications. Handle the Nitrophyl float carefully to avoid damage during installation. Verify that the float moves freely without binding and that the needle valve seats properly to prevent fuel leaks or flooding.

Quality Assurance and Warranty

Hygrade manufactures the FL31 carburetor float to meet industry standards for durability and performance. While specific warranty details are not provided, Hygrade products are generally backed by quality control processes to ensure reliable fitment and function in Toyota carburetors.

BrandHygrade
Part NumberFL31
Carburetor Make and ModelAisan 2 bbl
MaterialNitrophyl

This part fits 78 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1987ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1986ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1985ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1984ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1983ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1982ToyotaCorolla1.8LL4N/Aw/ Aisan Carb.; A-2; 21100-28091
1982ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1981ToyotaCorolla1.8LL4N/Aw/ Aisan Carb.; A-2; 21100-28091
1981ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1980ToyotaCelica2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38311, 38331, 38351, 38361, 38440
1980ToyotaCorolla1.8LL4N/Aw/ Aisan Carb.; A-2; 21100-28091
1980ToyotaCorona2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38311, 38331, 38351, 38361, 38440
1980ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1980ToyotaPickup2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38351, 38361, 38371, 38491
1979ToyotaCelica2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38310, 38320, 38330, 38340, 38350
1979ToyotaCorona2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38310, 38320, 38330, 38340, 38350
1979ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1979ToyotaPickup2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38360, 38370, 38380, 38420, 38480, 38490
1978ToyotaCelica2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38015, 38016, 38200, 38201, 38210, 38211, 38220, 38221, 38230, 38231, 38240, 38241, 38250, 38251, 38260, 38261, 38270, 38271
1978ToyotaCorona2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38015, 38016, 38200, 38201, 38210, 38211, 38220, 38221, 38230, 38231, 38240, 38241, 38250, 38251, 38260, 38261, 38270, 38271
1978ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1978ToyotaPickup2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38140, 38141, 38142, 38150, 38151, 38152, 38160, 38161, 38162, 38170, 38171, 38172, 38180, 38181, 38182, 38183, 38190, 38191, 38192, 38290, 38291, 38300, 38301
1977ToyotaCelica2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38010, 38011, 38012, 38013, 38014, 38020, 38021, 38022, 38030, 38031, 38032, 38033, 38034, 38080, 38081, 38082, 38083, 38084, 38111, 38120, 38130
1977ToyotaCorona2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38010, 38011, 38012, 38013, 38014, 38020, 38021, 38022, 38030, 38031, 38032, 38033, 38034, 38080, 38081, 38082, 38083, 38084, 38111, 38120, 38130
1977ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1977ToyotaPickup2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38140, 38141, 38142, 38150, 38151, 38152, 38160, 38161, 38162, 38170, 38171, 38172, 38180, 38181, 38182, 38183, 38190, 38191, 38192, 38290, 38291, 38300, 38301
1976ToyotaCelica2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38010, 38011, 38012, 38013, 38014, 38020, 38021, 38022, 38030, 38031, 38032, 38033, 38034, 38080, 38081, 38082, 38083, 38084, 38111, 38120, 38130
1976ToyotaCorona2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38010, 38011, 38012, 38013, 38014, 38020, 38021, 38022, 38030, 38031, 38032, 38033, 38034, 38080, 38081, 38082, 38083, 38084, 38111, 38120, 38130
1976ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1976ToyotaPickup2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38013, 38033, 38040, 38041, 38042, 38060, 38061, 38062, 38083, 38090, 38091, 38100, 38101
1975ToyotaCelica2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38010, 38011, 38012, 38013, 38014, 38020, 38021, 38022, 38030, 38031, 38032, 38033, 38034, 38080, 38081, 38082, 38083, 38084, 38111, 38120, 38130
1975ToyotaCorona2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38010, 38011, 38012, 38013, 38014, 38020, 38021, 38022, 38030, 38031, 38032, 38033, 38034, 38080, 38081, 38082, 38083, 38084, 38111, 38120, 38130
1975ToyotaLand Cruiser4.2LL6N/Aw/ Aisan Carb.; A-2; 21100-61010, 61020, 61021, 61022, 61025, 61030, 61031, 61032, 61060, 61061, 61062, 61065, 61070, 61071, 61072, 61100, 61101, 61102, 61140, 61141, 61142
1975ToyotaPickup2.2LL4N/Aw/ Aisan Carb.; A-2; 21100-38013, 38033, 38040, 38041, 38042, 38060, 38061, 38062, 38083, 38090, 38091, 38100, 38101
1974ToyotaCelica2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34085, 34086, 34087, 34088, 34114, 34181, 34200, 34201, 34240, 34241, 34260, 34270, 34280, 34290
1974ToyotaCorollaN/Aw/ Aisan Carb.; A-2; 21100-26010, 26011, 26012, 26021, 26030, 26031, 26032, 26080
1974ToyotaCorolla1.6LL4N/Aw/ Aisan Carb.; A-2; 21100-26010, 26011, 26012, 26021, 26030, 26031, 26032, 26080
1974ToyotaCorona2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34085, 34086, 34087, 34088, 34114, 34181, 34200, 34201, 34240, 34241, 34260, 34270, 34280, 34290
1974ToyotaLand Cruiser3.9LL6N/Aw/ Aisan Carb.; A-2; 21100-60191, 60200, 60201, 60202, 60203, 60204, 60205, 60280
1974ToyotaPickup2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34034, 34085, 34086, 34087, 34088, 34200, 34201, 34270, 34290
1973ToyotaCelica2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34085, 34086, 34087, 34088, 34114, 34181, 34200, 34201, 34240, 34241, 34260, 34270, 34280, 34290
1973ToyotaCorollaN/Aw/ Aisan Carb.; A-2; 21100-26010, 26011, 26012, 26021, 26030, 26031, 26032, 26080
1973ToyotaCorolla1.6LL4N/Aw/ Aisan Carb.; A-2; 21100-26010, 26011, 26012, 26021, 26030, 26031, 26032, 26080
1973ToyotaCorona2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34085, 34086, 34087, 34088, 34114, 34181, 34200, 34201, 34240, 34241, 34260, 34270, 34280, 34290
1973ToyotaLand Cruiser3.9LL6N/Aw/ Aisan Carb.; A-2; 21100-60191, 60200, 60201, 60202, 60203, 60204, 60205, 60280
1973ToyotaPickup2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34034, 34085, 34086, 34087, 34088, 34200, 34201, 34270, 34290
1972ToyotaCelica2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34063, 34064, 34083, 34084, 34112, 34113
1972ToyotaCorollaN/Aw/ Aisan Carb.; A-2; 21100-26010, 26011, 26012, 26021, 26030, 26031, 26032, 26080
1972ToyotaCorolla1.6LL4N/Aw/ Aisan Carb.; A-2; 21100-26010, 26011, 26012, 26021, 26030, 26031, 26032, 26080
1972ToyotaCorona2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34063, 34064, 34083, 34084, 34112, 34113
1972ToyotaCoronaMark II2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34063, 34064, 34083, 34084, 34112, 34113
1972ToyotaLand Cruiser3.9LL6N/Aw/ Aisan Carb.; A-2; 21100-60191, 60200, 60201, 60202, 60203, 60204, 60205, 60280
1972ToyotaPickup2.0LL4N/Aw/ Aisan Carb.; A-2; 21100-34063, 34064, 34083, 34084
1971ToyotaCelica1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34040, 34041, 34060, 34061, 34062, 34070, 34080, 34081, 34082, 34111
1971ToyotaCorolla1.6LL4N/Aw/ Aisan Carb.; A-2; 21100-26010, 26011, 26012, 26021, 26030, 26031, 26032, 26080
1971ToyotaCorollaN/Aw/ Aisan Carb.; A-2; 21100-26010, 26011, 26012, 26021, 26030, 26031, 26032, 26080
1971ToyotaCorona1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34030, 34031, 34032, 34090, 34091
1971ToyotaCoronaMark II1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34030, 34031, 34032, 34090, 34091
1971ToyotaCorona1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34040, 34041, 34060, 34061, 34062, 34070, 34080, 34081, 34082, 34111
1971ToyotaCoronaMark II1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34040, 34041, 34060, 34061, 34062, 34080, 34081, 34082, 34111
1971ToyotaLand Cruiser3.9LL6N/Aw/ Aisan Carb.; A-2; 21100-60191, 60200, 60201, 60202, 60203, 60204, 60205, 60280
1971ToyotaPickup1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34071, 34072
1970ToyotaCorona1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34030, 34031, 34032, 34090, 34091
1970ToyotaCoronaMark II1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34030, 34031, 34032, 34090, 34091
1970ToyotaCorona1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34040, 34041, 34060, 34061, 34062, 34070, 34080, 34081, 34082, 34111
1970ToyotaCoronaMark II1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34040, 34041, 34060, 34061, 34062, 34080, 34081, 34082, 34111
1970ToyotaCorona1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-40090, 40092, 40110, 40111, 40140, 40160
1970ToyotaLand Cruiser3.9LL6N/Aw/ Aisan Carb.; A-2; 21100-60191, 60200, 60201, 60202, 60203, 60204, 60205, 60280
1970ToyotaPickup1.9LL4N/Aw/ Aisan Carb.; From 12/69; A-2; 21100-34071, 34072
1969ToyotaCorolla1.1LL4N/Aw/ Aisan Carb.; A-2; 21100-22045, 22046, 22047
1969ToyotaCorona1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34030, 34031, 34032, 34090, 34091
1969ToyotaCoronaMark II1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34030, 34031, 34032, 34090, 34091
1969ToyotaCorona1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34040, 34041, 34060, 34061, 34062, 34070, 34080, 34081, 34082, 34111
1969ToyotaCoronaMark II1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-34040, 34041, 34060, 34061, 34062, 34080, 34081, 34082, 34111
1969ToyotaCorona1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-40090, 40092, 40110, 40111, 40140, 40160
1969ToyotaLand Cruiser3.9LL6N/Aw/ Aisan Carb.; A-2; 21100-60191, 60200, 60201, 60202, 60203, 60204, 60205, 60280
1968ToyotaCorolla1.1LL4N/Aw/ Aisan Carb.; A-2; 21100-22045, 22046, 22047
1968ToyotaCorona1.9LL4N/Aw/ Aisan Carb.; A-2; 21100-40090, 40092, 40110, 40111, 40140, 40160

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

168-01532-4992120933010737779-8003CF503BF154

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.