Best Carburetor Air Bleed Valve O-Rings of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 8, 2026

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Carburetor air bleed valve O-rings are essential for ensuring the proper functioning of a carburetor. These small O-rings are responsible for sealing the air bleed valve, which controls the amount of air that enters the carburetor. Without a proper seal, the carburetor may not be able to regulate the air/fuel mixture correctly, leading to engine performance issues. It is important to regularly inspect and replace these O-rings to maintain optimal engine performance. They are available in a variety of sizes and materials to fit different carburetor models.

At a Glance: Our Top Picks

Lumax LX-1422 Air Bleeder Valve Cover #TOP 1
Lumax LX-1422 Air Bleeder Valve
ftb score rating icon 9.9
HMKUGO High Pressure Bleed Valve Cover #TOP 2
HMKUGO High Pressure Bleed Valve
ftb score rating icon 9.8
Brass Male Bleeder Air Valve by Jones Stephens Cover #TOP 3
Brass Male Bleeder Air Valve by Jones Stephens
ftb score rating icon 9.6

Top 10 Carburetor Air Bleed Valve O-Rings

#TOP 1

Lumax LX-1422 Air Bleeder Valve

LX-1422
Silver
Lumax LX-1422 Air Bleeder Valve Cover
Lumax LX-1422 Silver 1/8" NPT Male Air Bleeder Valve, Maximum Protection Against Rust and Corrosion

The Lumax LX-1422 Air Bleeder Valve is designed to vent air pockets in hand and air-powered grease guns. It features 1/8 inch NPT male threads and a corrosion-resistant zinc plated finish. Additionally, the valve is spring loaded to prevent leakage.

What We Like
Prevents air pockets in grease guns
Suitable for hand and air-powered grease guns
Corrosion-resistant finish
#TOP 2

HMKUGO High Pressure Bleed Valve

10 millimeters
HMKUGO High Pressure Bleed Valve Cover
HMKUGO 2PCS PCP Airsoft High Pressure Pump Safety Bleeder Valve M10x1 Air Bleed Valve Adapter 300bar/4500psi

The HMKUGO Bleed Valve is designed for use with high-pressure air pumps, ensuring safe and efficient operation. Made from durable brass, it can handle pressures up to 4500 psi, making it reliable for your needs. Its precision machining ensures a perfect fit with M10x1 male threads, reducing the risk of leaks. Additionally, the valve includes a sealing ring washer, enhancing its reliability. The high-temperature and high-pressure resistance of this valve protects your equipment from excessive pressure, providing peace of mind during use.

What We Like
Durable brass construction
Leak-proof design
High-pressure capability
Temperature resistance
#TOP 3

Brass Male Bleeder Air Valve by Jones Stephens

Jones Stephens Corp.
Brass Male Bleeder Air Valve by Jones Stephens Cover
1/8"-27 IPS Male Bleeder Air Valve With Key

The Jones Stephens Bleeder Valve is designed to make your heating system maintenance easier. With a 1/8"-27 NPT thread, it fits standard connections for hot water radiators, convectors, and baseboards, ensuring compatibility with your existing setup. Made from durable brass and finished in nickel plating, this valve not only resists corrosion but also adds a sleek look to your system. The included key makes operation simple, allowing you to easily bleed air from your heating system and improve its efficiency. This product is essential for keeping your home warm and comfortable.

What We Like
Durable brass construction
Corrosion-resistant finish
Easy installation
Compatible with standard systems
#TOP 4

Briny River PCV Valve O-Ring Set for Fiat and Dodge

VB380_M
Briny River PCV Valve O-Ring Set for Fiat and Dodge Cover
Briny River 2Pcs Car PCV Valve O-Ring 30x3.1mm 4893446AB Compatible with Fiat 500 500L 500X Compatible with Dodge Darts 2012-2017

The Briny River PCV O-Rings are designed to fit perfectly on PCV valves and breather pipes, measuring 30x3.1mm to ensure a precise seal. Made from durable rubber, these O-rings resist heat, oil, and engine wear, helping you maintain your vehicle’s performance. They are compatible with popular models like the Fiat 500 series (2012-2017), Dodge Darts (2012-2017), and Jeep Renegade (2012-2017), making them a reliable replacement part for your car. With these O-rings, you can prevent leaks in your PCV system, which helps keep your engine running smoothly and efficiently.

What We Like
Precise fit size
Heat and oil resistant material
Wide vehicle compatibility
Leak prevention seal
#TOP 5

BNWMEPC ACDelco GM 24100002 Engine Oil Filler Cap O-Ring

24100002
BNWMEPC ACDelco GM 24100002 Engine Oil Filler Cap O-Ring Cover
Compatible with ACDelco GM 24100002 Engine Oil Filler Cap O-Ring, Fits 12593348, 12632361, 5330015631052, 015631052, 650127, 16526400, 2593348

The BNWMEPC Oil Cap O-Ring is designed as a direct replacement for several ACDelco GM part numbers, ensuring a perfect fit for your GM vehicle without hassle. Made from durable synthetic rubber, it offers excellent resistance to oil and can withstand high temperatures, helping your engine last longer. This O-ring creates a tight seal between the oil filler cap and tube, preventing oil leaks and stopping vapors from escaping, which keeps your engine clean and efficient. With a 28mm inner diameter, it fits like an original part, so you won’t need any special tools to install it. This makes maintenance straightforward and reliable for your vehicle.

What We Like
Durable synthetic rubber
Oil and heat resistant
Direct OEM fit
Prevents oil leaks
Easy installation
#TOP 6

Szuenh 91302-PA9-003 Honda O-Ring Set

91302-PA9-003
black
Szuenh 91302-PA9-003 Honda O-Ring Set Cover
2 pcs 91302-PA9-003 O-Ring,Compatible with Honda, fits 2011 Honda CR-V EX, EX-L, LX, SE Trims, 2010-2012 Accord EX, EX-L, LX, LX-S, SE Trims, and MSX125 (Grom) Motorcycles.

The Szuenh Honda O-Rings are designed to fit multiple Honda models, including various trims of the 2011 CR-V, 2010-2012 Accord, and MSX125 (Grom) motorcycles, making it easier for you to find the right seal without checking compatibility repeatedly. These O-rings match Honda’s original specifications, so you can install them quickly and with confidence, ensuring a perfect fit for fuel, cooling, or air intake systems. Made from durable, heat- and oil-resistant rubber, they resist aging and damage, helping to prevent leaks and extend the life of your engine’s seals. With these O-rings, you get reliable sealing that keeps your vehicle running smoothly and safely.

What We Like
Wide model compatibility
OEM specification matching
Durable heat and oil resistance
Effective leak prevention
#TOP 7

TTDYKX Control Valve O-Ring for Subaru Impreza Forester

806944060
TTDYKX Control Valve O-Ring for Subaru Impreza Forester Cover
TTDYKX 4Pack 806944060 Control Valve O-Ring Compatible with Subaru Impreza Forester 2011-2023

The TTDYKX Valve O-Ring Pack is designed to fit Subaru Impreza and Forester models from 2011 to 2023, making it a reliable choice for those specific vehicles. These o-rings serve as replacement parts that match the quality of the original components, ensuring your car’s control valve functions smoothly. Each pack contains four o-rings, giving you enough to replace multiple valves or keep spares on hand. Using this pack helps maintain your vehicle’s performance by preventing leaks and ensuring proper sealing, which can save you time and money on repairs.

What We Like
Compatible with Subaru models 2011-2023
High-quality replacement parts
Includes four o-rings per pack
Reliable control valve sealing
#TOP 8

Yellow Jacket 41131 Manifold O-Rings (Pack of 10)

41131
Black
Yellow Jacket 41131 Manifold O-Rings (Pack of 10) Cover
Yellow Jacket 41131 Manifold O-Rings (Pack of 10)

This product includes a pack of 10 manifold O-rings, which are made in the United States. The model number is 41131 and the item package dimensions are 2.0" L x 2.0" W x 2.0" H. The item weighs 2.0 lb and is categorized as carburetor air bleed valve O-rings.

What We Like
Includes a pack of 10 manifold O-rings
Made in the United States
Item package dimensions are 2.0" L x 2.0" W x 2.0" H
#TOP 9

STPCTOU 6235 Replacement O-Ring 4 Pack

6235O-Ring
Black
STPCTOU 6235 Replacement O-Ring 4 Pack Cover
Replacement 6235 O-Ring for No-Spill Gas Can Nozzle Assembly (4 Pack)

The STPCTOU O-Ring 4 Pack is designed with durable rubber material that stands up well to wear and tear, so you won’t have to worry about frequent replacements. These o-rings resist damage from gasoline, diesel, kerosene, and fuel additives, keeping your gas can nozzle sealed and secure. They fit specifically with the 6235 model, ensuring a perfect match for your Overfill Gas Tank Nozzle Assembly. With this pack of four, you have convenient backups ready whenever you need them, helping you maintain a reliable and spill-free fuel transfer experience.

What We Like
Durable rubber material
Fuel-resistant
Compatible with 6235 nozzle
Includes four o-rings
#TOP 10

Struggling 91326-PL5-003 O-Ring for Honda and Acura

Struggling
91326-PL5-003
Struggling 91326-PL5-003 O-Ring for Honda and Acura Cover
Struggling 91326-PL5-003 O-Ring 26x2.4 Compatible with Honda Civic 2008-2012 Crosstour 2012-2015 CR-V 2010-2014 Accord 2008-2012, Compatible with Acura ILX 2013-2018 TSX 2009-2014 NSX 1991-2005

The Struggling O-Ring 91326 is a reliable replacement designed to fit various Honda and Acura models, including Civic, Crosstour, CR-V, Accord, ILX, TSX, and NSX from specific years. This product replaces the original part number 91326-PL5-003, ensuring you get the correct fit without hassle. It is made to match or exceed the standards set by the original equipment manufacturer, giving you confidence in its quality and performance. By choosing this O-ring, you ensure a proper seal and smooth operation of your vehicle’s carburetor air bleed valve, helping to maintain your engine’s efficiency and reliability.

What We Like
OEM specification match
Wide vehicle compatibility
Exact part number replacement
Ensures proper seal
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the purpose of the air bleed valve?

The air bleed valve, also known as the air release valve, is used to release trapped air from a fluid system, such as a heat exchanger. It helps remove air that may collect in the system where the high point is above the system fill port.

2. What do low speed air bleeds do?

Low speed air bleeds, along with jetting, allow for fine-tuning of the fuel curve in a carburetor. Adjusting the size of the high or low-speed air bleeds can shape the fuel curve, while jetting shifts the entire curve. Together, air-bleed tuning and jetting enable optimal tuning of the fuel curve.

3. Is there a bleeder valve?

Yes, there is a bleeder valve commonly found on radiators. It is usually located at the top or opposite end of the radiator. The bleeder valve has a spherical shape with notches in the middle and is used to drain the radiator and release trapped air by inserting a bleed key or screwdriver.

4. How do I know if my carburetor has too much air?

One indication of a carburetor with too much air is hesitation when accelerating. This is usually caused by a lean fuel mixture, where there is an imbalance of too much air and not enough fuel.

5. What causes blowback through the carburetor?

Backfiring through the carburetor, also known as spitting or coughing, is commonly caused by a slightly lean air/fuel mixture in the morning. This can occur when the carburetor's air/fuel mixture is too lean, resulting in blowback through the carburetor.

6. Where is a bleed valve needed?

A bleed valve is typically installed between the isolation valve and the pressure-relief device in a system. Its purpose is to enable safe depressurization before performing maintenance. Additionally, the bleed valve can prevent pressure build-up between the pressure-relief device and the closed outlet isolation valve.

7. What happens if the main air bleed becomes restricted?

If the main air bleed of a carburetor becomes restricted or clogged, the fuel/air mixture would become excessively rich. This is because more suction would act on the fuel in the discharge nozzle, and less air would be introduced with the fuel.

8. How do you seal a bleeder valve?

To seal a bleeder valve, it is recommended to clean the valve with soapy water to remove any brake fluid or grease. Then, apply a small amount of thread sealant evenly to the threaded portion of the bleeder screw using a brush cap applicator.

9. What are the different types of bleeder valves?

There are three main types of bleeder valves: continuous venting valves, startup venting valves, and combined venting valves. Continuous venting valves are used to remove air that accumulates in systems during operation. Startup venting valves help with the initial removal of air during system startup. Combined venting valves have both continuous and startup venting capabilities.

Editor's Notes

During our carburetor air bleed valve o-ring research, we found 24 carburetor air bleed valve o-ring products and shortlisted 10 quality products. We collected and analyzed 2,736 customer reviews through our big data system to write the carburetor air bleed valve o-rings list. We found that most customers choose carburetor air bleed valve o-rings with an average price of $11.70.

The carburetor air bleed valve o-rings are available for purchase. We have researched hundreds of brands and picked the top brands of carburetor air bleed valve o-rings, including LUMAX, HMKUGO, Jones Stephens Corp., Briny River, BNWMEPC. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.