HomeAir and Fuel Delivery > CarburetionHygrade CV350 Carburetor Choke Thermostat
Part #: CV350

Hygrade CV350 Carburetor Choke Thermostat

⚙️ 81 vehicles fit this part
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🚗Fitment: Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac, LeSabre, Brougham, Caprice, Custom Cruiser, Electra, Safari, Cutlass Supreme, Regal, Cutlass Salon, Fleetwood, Parisienne, Riviera, Delta 88, Toronado, 98, Cutlass Calais, Estate Wagon, and Cutlass Cruiser
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Hygrade CV350 Carburetor Choke Thermostat Overview

The Hygrade CV350 carburetor choke thermostat is designed specifically for GM carburetors, providing reliable choke control without electric assist. This part is engineered to meet the needs of classic GM vehicles including Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models.

  • Compatible with GM carburetors on select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac vehicles
  • Non-electric assist design for straightforward choke operation
  • Part number CV350 ensures precise fit and function
  • Supports proper choke temperature regulation for improved engine start-up
  • Durable construction for consistent performance in carburetion systems

Detailed Product Description

The Hygrade CV350 carburetor choke thermostat is tailored for GM carburetors used in a range of vehicles such as the Buick LeSabre, Cadillac Fleetwood, Chevrolet Caprice, Oldsmobile Cutlass Supreme, and Pontiac Grand Prix models. This thermostat controls the choke mechanism by sensing temperature changes, allowing the choke to open and close at the correct times during engine warm-up. Unlike electric assist thermostats, the CV350 operates mechanically, providing a reliable and maintenance-friendly solution for carburetor choke control.

Applications and Problem Solving

  • Improves cold engine starting by regulating choke opening
  • Prevents engine flooding caused by a stuck choke
  • Reduces rough idling during warm-up periods
  • Helps maintain optimal air-fuel mixture for carbureted GM engines
  • Addresses choke sticking or failure issues in classic GM vehicles

Installation Notes and Tips

  • Ensure compatibility with your specific GM carburetor model before installation
  • Remove the old choke thermostat carefully to avoid damage to the carburetor linkage
  • Verify that the thermostat moves freely and is properly aligned with the choke plate
  • Test choke operation by observing choke plate movement during engine warm-up
  • Consult vehicle service manual for torque specifications and detailed installation procedures

Quality Assurance and Warranty

Hygrade manufactures the CV350 carburetor choke thermostat to meet OEM specifications for GM carburetors. This part undergoes quality control inspections to ensure durability and reliable performance. While specific warranty details may vary, Hygrade products typically include a limited warranty against defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.

This part fits 81 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1990BuickLeSabre5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17088115 and 17111994.
1990BuickLeSabre5.0LV8N/Aw/ Rochester Carburetor E4ME part numbers 17088115 and 17111994
1990CadillacBrougham5.0LV8N/Aw/ Rochester Carb.; 17086008-17086009, 17088115, 17111472, 17111487, 17111994
1990ChevroletCaprice5.0LV8N/Aw/ Rochester Carb.; E4MC, E4ME; 17088115, 17111994
1990OldsmobileCustom Cruiser5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17088115 and 17111994.
1989BuickLeSabre5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17088115 and 17111994.
1989BuickLeSabre5.0LV8N/Aw/ Rochester Carburetor E4ME part numbers 17088115 and 17111994
1989CadillacBrougham5.0LV8N/Aw/ Rochester Carb.; 17086008-17086009, 17088115, 17111472, 17111487, 17111994
1989ChevroletCaprice5.0LV8N/Aw/ Rochester Carb.; E4MC, E4ME; 17088115, 17111994
1989OldsmobileCustom Cruiser5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17088115 and 17111994.
1989PontiacSafari5.0LV8N/Aw/ Rochester Carb.; E4MC, E4ME; 17088115, 17111994
1988BuickLeSabre5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17088115 and 17111994.
1988BuickLeSabre5.0LV8N/Aw/ Rochester Carburetor E4ME part numbers 17088115 and 17111994
1988CadillacBrougham5.0LV8N/Aw/ Rochester Carb.; 17086008-17086009, 17088115, 17111472, 17111487, 17111994
1988ChevroletCaprice5.0LV8N/Aw/ Rochester Carb.; E4MC, E4ME; 17088115, 17111994
1988OldsmobileCustom Cruiser5.0LV8N/Aw/ Rochester Carb.; E4MC; 17086008, 17088115, 17111487, 17111994
1988OldsmobileCutlass Supreme5.0LV8N/Aw/ Rochester Carb.; E4MC; 17086008, 17088115, 17111487, 17111994
1988PontiacSafari5.0LV8N/Aw/ Rochester Carb.; E4MC, E4ME; 17088115, 17111994
1987BuickLeSabre5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17086008 17111487
1987BuickLeSabre5.0LV8N/Aw/ Rochester Carburetor E4ME 17086008 17111487
1987BuickRegal5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17086008 17111487
1987BuickRegal5.0LV8N/Aw/ Rochester Carburetor E4ME 17086008 17111487
1987CadillacBrougham5.0LV8N/Aw/ Rochester Carb.; 17086008-17086009, 17088115, 17111472, 17111487, 17111994
1987ChevroletCaprice5.0LV8N/Aw/ Rochester Carb.; E4MC, E4ME; 17086008, 17111487
1987OldsmobileCustom Cruiser5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17086008-17086009, 17111472, 17111487
1987OldsmobileCutlass Salon5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17086008-17086009, 17111472, 17111487
1987OldsmobileCutlass Supreme5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17086008-17086009, 17111472, 17111487
1987PontiacSafari5.0LV8N/Aw/ Rochester Carb.; E4MC, E4ME; 17086008, 17111487
1986BuickLeSabre5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17086008 17111487
1986BuickLeSabre5.0LV8N/Aw/ Rochester Carburetor E4ME 17086008 17111487
1986BuickRegal5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17086008 17111487
1986BuickRegal5.0LV8N/Aw/ Rochester Carburetor E4ME 17086008 17111487
1986CadillacFleetwood5.0LV8N/Aw/ Rochester Carb; E4MC; 17086008-17086009, 17088115, 17111472, 17111487, 17111994
1986CadillacFleetwood5.0LV8N/AFits carburetors with Rochester Carb, E4ME series numbers 17086008-17086009, 17088115, 17111472, 17111487, 17111994.
1986ChevroletCaprice5.0LV8N/Aw/ Rochester Carb.; E4MC, E4ME; 17086008
1986OldsmobileCustom Cruiser5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17086008 17111487
1986OldsmobileCutlass Salon5.0LV8N/Aw/ Rochester Carb.; E4MC; 17086009, 17111472
1986OldsmobileCutlass Salon5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17086008 17111487
1986OldsmobileCutlass Supreme5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17086008 17111487
1986PontiacParisienne5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carb E4MC 17086008 17111487
1985BuickLeSabre5.0LV8N/AChoke thermostat fits with Rochester Carburetors, U.S. emissions, E4MC, and part numbers 17085282, 17111105.
1985BuickLeSabre5.0LV8N/ARochester Carburetor Choke Thermostat, compatible with U.S. Emissions, E4ME, parts 17085282 and 17111105.
1985BuickRiviera5.0LV8N/AChoke thermostat fits with Rochester Carburetors, U.S. emissions, E4MC, and part numbers 17085282, 17111105.
1985BuickRiviera5.0LV8N/ARochester Carburetor Choke Thermostat, compatible with U.S. Emissions, E4ME, parts 17085282 and 17111105.
1985OldsmobileCustom Cruiser5.0LV8N/AChoke thermostat fits with Rochester Carburetors, U.S. emissions, E4MC, and part numbers 17085282, 17111105.
1985OldsmobileCutlass Salon5.0LV8N/AChoke thermostat fits with Rochester Carburetors, U.S. emissions, E4MC, and part numbers 17085282, 17111105.
1985OldsmobileCutlass Supreme5.0LV8N/AChoke thermostat fits with Rochester Carburetors, U.S. emissions, E4MC, and part numbers 17085282, 17111105.
1985OldsmobileDelta 885.0LV8N/AChoke thermostat fits with Rochester Carburetors, U.S. emissions, E4MC, and part numbers 17085282, 17111105.
1985OldsmobileToronado5.0LV8N/AChoke thermostat fits with Rochester Carburetors, U.S. emissions, E4MC, and part numbers 17085282, 17111105.
1984BuickLeSabre5.0LV8N/AFits models with Rochester Carburetor numbers E4MC 17084256, 17084258, 17110606, 17110609
1984BuickLeSabre5.0LV8N/ACompatible with vehicles equipped with Rochester Carburetors, U.S. Emissions, E4MC, and the specified part numbers 17084252, 17084254, 17110444-17110445.
1984BuickRiviera5.0LV8N/AFits models with Rochester Carburetor numbers E4MC 17084256, 17084258, 17110606, 17110609
1984BuickRiviera5.0LV8N/ACompatible with vehicles equipped with Rochester Carburetors, U.S. Emissions, E4MC, and the specified part numbers 17084252, 17084254, 17110444-17110445.
1984Oldsmobile985.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17084252, 17084254, 17084256, 17084258, 17084554, 17110443-17110445, 17110606, 17110609
1984OldsmobileCustom Cruiser5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17084252, 17084254, 17084256, 17084258, 17084554, 17110443-17110445, 17110606, 17110609
1984OldsmobileCutlass Calais5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17084252, 17084254, 17084256, 17084258, 17084554, 17110443-17110445, 17110606, 17110609
1984OldsmobileCutlass Supreme5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17084252, 17084254, 17084256, 17084258, 17084554, 17110443-17110445, 17110606, 17110609
1984OldsmobileDelta 885.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17084252, 17084254, 17084256, 17084258, 17084554, 17110443-17110445, 17110606, 17110609
1984OldsmobileToronado5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17084252, 17084254, 17084256, 17084258, 17084554, 17110443-17110445, 17110606, 17110609
1983BuickLeSabre5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carburetor, U.S. Emissions, E4MC, and part numbers 17079343, 17079672, 17083250, 17083253.
1983BuickRiviera5.0LV8N/AFits Carburetor Choke Thermostat with Rochester Carburetor, U.S. Emissions, E4MC, and part numbers 17079343, 17079672, 17083250, 17083253.
1983Oldsmobile985.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17079343, 17079354, 17079672, 17083250, 17083253, 17083553
1983OldsmobileCustom Cruiser5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17079343, 17079354, 17079672, 17083250, 17083253, 17083553
1983OldsmobileCutlass Calais5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17079343, 17079354, 17079672, 17083250, 17083253, 17083553
1983OldsmobileCutlass Cruiser5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17079343, 17079354, 17079672, 17083250, 17083253, 17083553
1983OldsmobileCutlass Supreme5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17079343, 17079354, 17079672, 17083250, 17083253, 17083553
1983OldsmobileDelta 885.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17079343, 17079354, 17079672, 17083250, 17083253, 17083553
1983OldsmobileToronado5.0LV8N/Aw/ Rochester Carb.; w/ U.S. Emissions; E4MC; 17079343, 17079354, 17079672, 17083250, 17083253, 17083553
1982BuickLeSabre5.0LV8N/Aw/ Rochester Carb, w/ U.S. Emissions, E4MC, 17068506, 17082253
1982BuickRiviera5.0LV8N/Aw/ Rochester Carb, w/ U.S. Emissions, E4MC, 17068506, 17082253
1982Oldsmobile985.0LV8N/Aw/ Rochester Carb, w/ U.S. Emissions, E4MC, 17068506, 17082253
1982OldsmobileCustom Cruiser5.0LV8N/Aw/ Rochester Carb, w/ U.S. Emissions, E4MC, 17068506, 17082253
1982OldsmobileCutlass Calais4.3LV8N/Aw/ Rochester Carb.; E2MC; 17078225, 17079252, 17082150, 17082152
1982OldsmobileCutlass Calais5.0LV8N/Aw/ Rochester Carb, w/ U.S. Emissions, E4MC, 17068506, 17082253
1982OldsmobileCutlass Cruiser4.3LV8N/Aw/ Rochester Carb.; E2MC; 17078225, 17079252, 17082150, 17082152
1982OldsmobileCutlass Cruiser5.0LV8N/Aw/ Rochester Carb, w/ U.S. Emissions, E4MC, 17068506, 17082253
1982OldsmobileCutlass Supreme4.3LV8N/Aw/ Rochester Carb.; E2MC; 17078225, 17079252, 17082150, 17082152
1982OldsmobileCutlass Supreme5.0LV8N/Aw/ Rochester Carb, w/ U.S. Emissions, E4MC, 17068506, 17082253
1982OldsmobileDelta 884.3LV8N/Aw/ Rochester Carb.; E2MC; 17078225, 17079252, 17082150, 17082152
1982OldsmobileDelta 885.0LV8N/Aw/ Rochester Carb, w/ U.S. Emissions, E4MC, 17068506, 17082253
1982OldsmobileToronado5.0LV8N/Aw/ Rochester Carb, w/ U.S. Emissions, E4MC, 17068506, 17082253

* 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:

17068941171106462C1036779-1482CT343E6010

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