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Updated: 06 Apr 2026

10 Best Car Header Gaskets

#1 Best Pick
ZNDAW 2PCS 3.5" Exhaust Gaskets, Copper Header Collector Flange Gaskets Reusable Manifold Parts, Ultra Seal Triangle Exhaust Header Gasket for SBC BBC 302 350 454, Car Accessories

ZNDAW 2PCS 3.5" Exhaust Gaskets, Copper Header Collector Flange Gaskets Reusable Manifold Parts, Ultra Seal Triangle Exhaust Header Gasket for SBC BBC 302 350 454, Car Accessories

Brand: ZNDAW
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  • Excellent Material: Our exhaust flange gaskets are made from high-quality copper with superior heat and wear resistance. Its heat resistance allows it to maintain structural integrity and provide a reliable seal at high temperatures. You also don't have to worry about it warping and cracking
  • Efficient Sealing: These superior flange gaskets are elastic sealing gaskets. They are installed between the pipes and the cylinders to prevent the hot air from spreading outward. In addition, the inner rings of these flange gaskets adopt an O-shaped design, providing better sealing performance
  • Practical Functions: These exhaust pipe flange gaskets, by connecting the pipe openings, can significantly reduce energy loss. They also help reduce engine noise and keep the engine in an efficient operating state. In addition, they can be used to replace old or flange gaskets that need to be replaced
  • Wide Compatibility: Three types of exhaust gaskets with central diameters of 2.5", 3", and 3.5" are available, featuring bolt hole spacings of 3.1" (79 mm), 8.4" (213 mm), and 3.9" (99 mm), respectively. All gaskets are compatible with 0.4" (10 mm) bolts and fit SBC, BBC, 302, 350 and 454 engines
  • Simple Installation: Installing the car exhaust collector gasket is very easy. The first step you need to take is to place the exhaust gasket over the port, aligning the piston holes as well as the screw holes and bolt holes. Then use a screwdriver to tighten the nuts to achieve a stable and firm fit
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#2 Best Value
2PCS 3" Exhaust Gasket,Copper Exhaust Flange for Header Gasket & Collector Gasket,Car Accessories Exhaust Pipe Gasket Compatible with BBC/SBC,Automotive Exhaust Systems & Parts (3")

2PCS 3" Exhaust Gasket,Copper Exhaust Flange for Header Gasket & Collector Gasket,Car Accessories Exhaust Pipe Gasket Compatible with BBC/SBC,Automotive Exhaust Systems & Parts (3")

Brand: carleef
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  • 🔎 BUYING GUIDE: Distance between the two bolt holes of the flange gasket is 3.3"/ 84mm and fits 10mm bolts. Compatible with SBC, BBC, 302, 350, 454, and fits all 3 inch collector with triangle (3 Bolt Pattern). A good replacement to replace old or damaged header collector gasket! Confirm the size and buy with confidence!
  • 🔎 PREMIUM QUALITY COPPER: Our exhaust flange gasket is made of top quality copper material, more prominent wear resistance, pressure resistance and heat resistance, so that it can always maintain excellent performance. It is a reliable and durable car replacement part, with which driving trips will be safer and more secure!
  • 🔎 EFFECTIVE SEALING: The exhaust gasket is an elastic sealing gasket assembled between the pipe and the cylinder head exhaust port to prevent hot gases from diffusing outward from the connection, and utilizes a durable composite O-shape design with excellent sealing performance to ensure that the gases do not flare out.
  • 🔎 IMPROVE PERFORMANCE: Exhaust pipe flange gasket can better connect the pipe interface, reduce energy loss, but also help to reduce engine noise, so that the engine stably maintains an efficient working condition.
  • 🔎 EASY INSTALLATION: Each of our bags comes with 2 header gaskets of the same size. The flange gaskets have 3 slotted bolt holes, simply place the heatsink on the port, align the piston holes, make sure the screw holes and bolt holes are lined up, and tighten the nut to hold the flange gasket in place, making sure it is secure.
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#3 Budget Pick
2PCS Car Exhaust Flange Gasket Kit, Muffler Header and Turbo Pipe Parts, Triangular Gaskets with 3 Holes, Replacement Accessories for Cars, SUVs, Trucks (Silver) (2.5inch)

2PCS Car Exhaust Flange Gasket Kit, Muffler Header and Turbo Pipe Parts, Triangular Gaskets with 3 Holes, Replacement Accessories for Cars, SUVs, Trucks (Silver) (2.5inch)

Brand: SOMUCH
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  • High-Quality Material: Crafted from superior metal, this Car Exhaust Flange Gasket provides excellent durability and seals gaps effectively. Available in 3-inch and 2.5-inch sizes.
  • Durability: Rigorous quality tests ensure this Automotive Exhaust Gasket performs reliably in high-heat environments, ideal for cars, SUVs, and trucks.
  • Precision Fit: With 0.07-inch thickness and options for 3-inch or 2.5-inch diameters, these gaskets fit exhaust turbines perfectly. Package includes 2 gaskets.
  • Easy Installation: Features slotted bolt holes and a triple-hole design for a secure fit. The smooth surface ensures safe and easy handling during installation.
  • Versatile Use: This universal gasket replaces faulty catalytic converter gaskets and other seals. Suitable for a wide range of vehicles, including cars, trucks, and SUVs.
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#4 Top Choice
Otoolling 2 Pcs Universal Exhaust Gasket 3 Bolt 3 Inch Header Gasket for Header Flange Car Automotive Exhaust System

Otoolling 2 Pcs Universal Exhaust Gasket 3 Bolt 3 Inch Header Gasket for Header Flange Car Automotive Exhaust System

Brand: Otoolling
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  • Comprehensive Package: this package includes 2 pieces of universal exhaust gaskets, each with a 3 inch round diameter, 3 bolt header gasket holes, and 3-3/8 inch bolt hole spacing; These header collector gaskets are compatible with 3-inch manifold flanges, offering a versatile solution for various automotive needs
  • Durable Exhaust Sealing Solution: our universal exhaust gaskets, made from flexible graphite, provide robust sealing for your car's exhaust system; Designed to withstand high temperatures, these gaskets ensure that connections remain firm and free from leaks, thanks to their durable exhaust gasket material
  • Ideal Fit and Functionality: our exhaust gaskets feature a standard 1/8 inch thickness, expertly filling any flange surface gaps up to 1/16 inch; This ensures a fit between your cylinder head and manifold, providing a reliable seal that enhances performance and reduces exhaust leaks
  • Long-lasting Performance: unlike gaskets containing rubber adhesives or composite materials, our exhaust gaskets maintain their integrity over time; They resist shrinkage or hardening in response to temperature fluctuations, eliminating the need to repeatedly tighten your flange bolts
  • High-temperature Resilience: these header gaskets boast high-temperature resistance, ensuring they remain undamaged and maintain sealing capabilities even under intense heat; This resilience makes them a dependable choice for any automotive repair or upgrade
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#5 Popular Choice
2.5"Copper Header Exhaust Collector Gaskets(1 pair) Reusable for all SBC BBC 302 350 454,1/2" Exhaust Gaskets (3 Bolt Pattern)

2.5"Copper Header Exhaust Collector Gaskets(1 pair) Reusable for all SBC BBC 302 350 454,1/2" Exhaust Gaskets (3 Bolt Pattern)

Brand: GSKMOTOR
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  • 🔧 【High Quality Copper】:The exhaust header collector gasket made of 2.5" solid copper 0.41" thick with impeccable durability performance, wear-resisting, anti-strike, anti-scratch, dust-proof and colorfast.without included bolts
  • 🔧 【Wide Applicability】:This 2 1/2" Header Collector Gasket are especially designed for SBC BBC 302 350 454, and fit all 2.5 inch collector with Triangle (3 Bolt Pattern).
  • 🔧 [Excellent Sealing Effect]: The exhaust header collector gasket uses a durable composite O-shaped design to form a tight leak-proof seal, without additional sealant, and can seal perfectly every time.
  • 🔧 [What You Will Get]: Includes 2 x 2.5-inch exhaust header collector gaskets for easy installation and operation.Replace old or damaged header collector gasket in time for better performance.
  • 🔧 【Aftermarket Service】:GSKMOTOR specializes in providing high-performance repair and replacement parts for various automobiles, we support 30 days returns and exchanges. If you have any questions, please feel free to contact us, we will solve it for you as soon as possible, customer satisfaction is our unremitting pursuit.
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#6 Top Pick
2PCS Car Exhaust Flange Gasket Kit, Muffler Header and Turbo Pipe Parts, Triangular Gaskets with 3 Holes, Replacement Accessories for Cars, SUVs, Trucks (Silver) (3-inch)

2PCS Car Exhaust Flange Gasket Kit, Muffler Header and Turbo Pipe Parts, Triangular Gaskets with 3 Holes, Replacement Accessories for Cars, SUVs, Trucks (Silver) (3-inch)

Brand: SOMUCH
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  • High-Quality Material: Crafted from superior metal, this Car Exhaust Flange Gasket provides excellent durability and seals gaps effectively. Available in 3-inch and 2.5-inch sizes.
  • Durability: Rigorous quality tests ensure this Automotive Exhaust Gasket performs reliably in high-heat environments, ideal for cars, SUVs, and trucks.
  • Precision Fit: With 0.07-inch thickness and options for 3-inch or 2.5-inch diameters, these gaskets fit exhaust turbines perfectly. Package includes 2 gaskets.
  • Easy Installation: Features slotted bolt holes and a triple-hole design for a secure fit. The smooth surface ensures safe and easy handling during installation.
  • Versatile Use: This universal gasket replaces faulty catalytic converter gaskets and other seals. Suitable for a wide range of vehicles, including cars, trucks, and SUVs.
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#7 Top Pick
Hbxdeco 2PCS 3 Inch Copper Header Exhaust Collector Gaskets, 3 Bolt Reusable Car Exhaust Pipe Header Flange Gaskets, Car Accessories Exhaust Gasket Compatible with SBC BBC 302 350 454(3 Inch)

Hbxdeco 2PCS 3 Inch Copper Header Exhaust Collector Gaskets, 3 Bolt Reusable Car Exhaust Pipe Header Flange Gaskets, Car Accessories Exhaust Gasket Compatible with SBC BBC 302 350 454(3 Inch)

Brand: Hbxdeco
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  • 【Size & Fitment】: The distance between the two bolt holes is 3 inches/76 mm for the 2.5-inch exhaust gasket and 3.3 inches/84 mm for the 3-inch exhaust gasket. They are designed for SBC, BBC, 302, 350, 454 and are compatible with most triangular 3-bolt pattern 2.5-inch/3-inch collectors.
  • 【Reliable Seal】: This product adopts O-ring sealing design, which can be installed between the pipe and cylinder head exhaust port to form a reliable seal, effectively preventing the gas from leaking into the external environment of the engine compartment.
  • 【Good Material】: Our exhaust gaskets are made of high-quality copper material, which has excellent heat resistance and corrosion resistance, and can work stably for a long time under the harsh environment. In addition, copper gaskets are not easy to be aged, deformed or damaged, which greatly prolongs the use of the product.
  • 【Simple Installation】: Each gasket comes with 3 slotted bolt holes. When installing, simply place the gasket on the port, align the piston holes, make sure the screw holes and bolt holes are aligned, and then tighten the nut to achieve a solid and stable installation.
  • 【Ideal Replacement】: This package contains 2 pcs 2.5 inch or 3-inch exhaust gaskets, they are ideal replacements for old or damaged collector pipe collector gaskets with the same function and same or higher quality. With them, you can ensure the normal operation of your car exhaust system.
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#8 Top Pick
SING F LTD 4Pcs Copper Exhaust Gaskets Header Ring Seal Compatible with Honda VFR VFR750 VFR800 VTEC VF400 VF500 CB500 CB550 GL1500 GL1800

SING F LTD 4Pcs Copper Exhaust Gaskets Header Ring Seal Compatible with Honda VFR VFR750 VFR800 VTEC VF400 VF500 CB500 CB550 GL1500 GL1800

Brand: SING F LTD
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  • Compatibility: Compatible with Honda motorcycles including VFR750 (1986-1998), VFR800 VTEC (1998-2009), VF400, VFR400 NC30/NC21/NC24, CB500 Four, VF500 Magna, CB550 Four/Super Four, VF750 Magna/Sabre, GL1500 Gold Wing, and GL1800 Gold Wing models.
  • Dimensions: Flat-sided copper gaskets with 40mm outer diameter and 30.5mm inner diameter for precise fit.
  • Material: Made of copper for effective sealing and heat resistance.
  • Function: Provides reliable exhaust header sealing to prevent leaks and maintain performance.
  • Application scope: Ideal for exhaust system maintenance, repair, or replacement of worn gaskets.
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#9 Top Pick
2PCS Car Exhaust Gasket,3.5" 2-Bolt Exhaust Flange Gasket Car Accessories,Professional Exhaust Manifold Gasket Made of High Temp Gasket Material (3.5 inch)

2PCS Car Exhaust Gasket,3.5" 2-Bolt Exhaust Flange Gasket Car Accessories,Professional Exhaust Manifold Gasket Made of High Temp Gasket Material (3.5 inch)

Brand: Salior
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  • 🦊 Buyer's Guide: Its size is 140x112.5mm/5.51x4.43inch, thickness is 2.6mm/0.1inch, and inner diameter is 89mm/3.5inch. The exhaust flange gasket comes with 2 bolt holes spaced 100-128.8mm/3.94-5.07inch apart. It is suitable for bolt hardware smaller than 12mm or 1/2 inch.
  • 🦊 Tightly Seal: If your car exhaust pipe gasket has started to age or become damaged, it's time to replace it with a premium parts! Our gasket material can extend the service life of the engine cylinder head.
  • 🦊 High Temp Resistant Material: As one of the main heated accessories of automotive engines, the exhaust manifold gasket has a high working heat load, high vibration intensity!
  • 🦊 Easy to Install: The packaging contains 2x muffler gasket to ensure seamless connection between the automotive exhaust manifold and cylinder head flange. The installation of the header gasket is very simple, and it can be firmly fixed in the pipe using only bolt components.
  • 🦊 Practical Car Accessories: We insist on providing the best car accessories and services for our 40 million customers worldwide. Each of our gasket is carefully tested and inspected before delivery.
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#10 Top Pick
2Pcs Car Exhaust Gasket Standard Exhaust Flange Gaskets with 2 Bolt Aluminium Alloy Manifold Gasket for Connecting Car Accessories (3 lnch)

2Pcs Car Exhaust Gasket Standard Exhaust Flange Gaskets with 2 Bolt Aluminium Alloy Manifold Gasket for Connecting Car Accessories (3 lnch)

Brand: LIUKCHGE
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  • 【Note】 Our automotive exhaust gasket OEM#120-06310-0002, the size is 5.67"Lx3.46"Wx0.08"H with a 2.5" inner diameter. The exhaust gasket comes with two bolt holes spaced 3.78"-4.57" apart for bolt hardware smaller than 12mm or 1/2". Please check carefully if our gaskets are suitable for your car before purchasing.
  • 【High Temperature & Pressure Resistance】 This car exhaust gasket is made of plated iron and graphite composite structural material, which is resistant to high temperature, high pressure and abrasion. The gasket material fills the tiny gap between the intake manifold and the engine.
  • 【Effective Sealing】 The exhaust is critical to the proper functioning of an automotive engine. The exhaust flange gasket has excellent sealing properties, and also helps to reduce engine noise, thus keeping the engine in efficient working condition.
  • 【Improved Performance】 By using this exhaust flange gasket, the exhaust pipe interface can be better connected, avoiding huge temperature fluctuations that cause parts to move, and making the car's power performance better.
  • 【Easy Installation】 This exhaust manifold gasket has a simple design for quick and easy installation, all you need to do is to place the muffler gasket on the interface, align the piston holes and make sure the screw holes and the threaded holes of the exhaust pipe are aligned and slowly tighten the nut to make sure the gasket is secure.
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