10 Best Fuel Inlet Repair Fittings Gaskets for 2026

Need leak-free fuel inlet fittings and gaskets that fit right and last? Start with brass 8089 and AUTOVIC fittings for corrosion resistance and smooth rotation.

Pair Edelbrock-compatible brass nipples with Holley rubber-coated gaskets for secure seals, and keep Dorman gasket assortments plus Cummins copper kits on hand for quick swaps.

Match thread type, seat style, and gasket thickness to avoid leaks and save time during maintenance.

Top Fuel Inlet Repair Fittings Picks

8089 Fuel Banjo Bolt & Inlet Fitting Kit 8089 Fuel Banjo Bolt and Inlet Fitting Kit For Edelbrock Best for ClearanceCompatibility / Fitment: Edelbrock square-bore, Carter AFB, Performer, Thunder AVS carburetorsMaterial: BrassFunction / Purpose: Reroute fuel inlet 90° / banjo adapter for carburetor inlet clearanceVIEW LATEST PRICERead Our Analysis
Dorman 55143 Carburetor Inlet Gasket Assortment 10 Pack Universal Fit Dorman 55143 Carburetor Inlet Gasket Assortment, 10 Pack Universal Fit Best Value PackCompatibility / Fitment: Universal fit for standard and oversized fuel inlets (carburetor inlet applications)Material: Nylon and paper (gasket materials)Function / Purpose: Prevent fuel leaks / inlet gasket sealingVIEW LATEST PRICERead Our Analysis
ApplianPar Banjo Bolt Copper Gasket Kit for Dodge Cummins ApplianPar Fuel Return Line Banjo Bolt Copper Gaskets Kit for Best for CumminsCompatibility / Fitment: Dodge Cummins 12V (4BT, 6BT, 6CT) 1989–1998 enginesMaterial: Copper (gaskets) and metal banjo boltsFunction / Purpose: Seal fuel return lines / replace banjo bolt gasketsVIEW LATEST PRICERead Our Analysis
AUTOVIC Brass Carburetor Inlet Fitting with Washer AUTOVIC 8090 Carburetor Inlet Fitting with Washer Brass for Edelbrock Reliable ReplacementCompatibility / Fitment: Edelbrock square-bore and AFB carburetorsMaterial: BrassFunction / Purpose: Fuel inlet fitting to connect hard fuel lines to carburetorVIEW LATEST PRICERead Our Analysis
Carburetor Fuel Inlet Repair Fitting for Edelbrock Carburetor Fuel Inlet Repair Fitting for Edelbrock 1400 Performer for OEM Fit ReplacementCompatibility / Fitment: Edelbrock 1400 Performer, Thunder AVS (replacement for part 1497)Material: BrassFunction / Purpose: Repair/replacement fuel inlet fitting for carburetorVIEW LATEST PRICERead Our Analysis
FKM Fuel Line O-Ring Kit (24 Pack) 24 Pack FKM Fuel Line O Ring Kit,Compatible with 800 Maintenance EssentialCompatibility / Fitment: Quick-connect fuel fittings (800 013 and listed OEM equivalents)Material: FKM (fluoroelastomer)Function / Purpose: Replace O-rings for quick-connect fuel fittings / restore sealVIEW LATEST PRICERead Our Analysis
Carburetor Fuel Inlet Gasket for Rochester Quadrajet Carburetor Fuel Inlet Fitting Gasket for Rochester Quadrajet Dualjet 5/18-18 Quadrajet SpecificCompatibility / Fitment: Rochester Quadrajet and Dualjet carburetorsMaterial: Nylon (gasket) and metal fitting componentsFunction / Purpose: Seal fuel inlet fitting on Quadrajet/Dualjet carburetorsVIEW LATEST PRICERead Our Analysis
Fuel Bowl Inlet Gasket Pack for Holley Carburetor 108-8 (4 Pack) Fuel Bowl Inlet Fitting Gaskets 7/8" ID Best for HolleyCompatibility / Fitment: Holley 2300/4150/4160/4500 series and compatible Demon-style carburetorsMaterial: Rubber-coated materialFunction / Purpose: Fuel bowl inlet gasket for Holley carburetors (seal inlet)VIEW LATEST PRICERead Our Analysis
8089 Carburetor Inlet Fitting for Edelbrock Carburetors JADSOrBoBi 8089 Carburetor Inlet Fitting Compatible with Edelbrock, Fuel Banjo Most AdjustableCompatibility / Fitment: Edelbrock Square-Bore, Carter AFB, Performer, Thunder AVS carburetorsMaterial: BrassFunction / Purpose: 90° rotatable inlet fitting to route fuel line and improve clearanceVIEW LATEST PRICERead Our Analysis
Tecumseh Carburetor Plastic Elbow Inlet Fitting (2-Pack) Replace 640363 Tecumseh Carburetor Gas Line Inlet Plastic Elbow Fitting Small-Engine FitCompatibility / Fitment: Tecumseh carburetors/models (640230, 640231, 640347; TC300, TMO4)Material: Plastic (elbow fitting)Function / Purpose: Small elbow inlet fitting for Tecumseh carburetorsVIEW LATEST PRICERead Our Analysis

More Details on Our Top Picks

  1. 8089 Fuel Banjo Bolt & Inlet Fitting Kit

    8089 Fuel Banjo Bolt and Inlet Fitting Kit For Edelbrock

    Best for Clearance

    View Latest Price

    Should you want a simple, reliable way to re-route fuel on Edelbrock square-bore or Carter AFB carburetors, the 8089 Fuel Banjo Bolt and Inlet Fitting Kit is a great pick because it turns the fuel inlet 90 degrees and can rotate a full 360 degrees to point the line forward or back. You’ll like the brass build for lasting strength and the 3/8 banjo with 5/8-20 inlet for secure fit. It frees up air cleaner space on manual choke carbs, installs easily, and fits Performer and Thunder AVS models. You’ll feel confident making the swap and adjusting orientation.

    • Compatibility / Fitment:Edelbrock square-bore, Carter AFB, Performer, Thunder AVS carburetors
    • Material:Brass
    • Function / Purpose:Reroute fuel inlet 90° / banjo adapter for carburetor inlet clearance
    • Thread / Connection Size:Banjo thread 3/8; inlet thread 5/8-20
    • Package Quantity / Kit Contents:Single banjo adapter kit (1 piece)
    • Primary Benefit / Buyer Advantage:Adds air cleaner clearance and routs fuel for manual-choke carbs
    • Additional Feature:360° rotatable orientation
    • Additional Feature:Re-routes fuel 90°
    • Additional Feature:Provides air-cleaner clearance
  2. Dorman 55143 Carburetor Inlet Gasket Assortment 10 Pack Universal Fit

    Dorman 55143 Carburetor Inlet Gasket Assortment, 10 Pack Universal Fit

    Best Value Pack

    View Latest Price

    In case you work on carburetors or fuel systems and want a simple, reliable solution, the Dorman 55143 Carburetor Inlet Gasket Assortment is a great pick because it covers both standard and oversized inlet fittings so you won’t waste time hunting for the right size. You’ll get ten durable gaskets made of nylon and paper that seal fuel inlets and prevent leaks, a real safety win. They fit many applications, are easy to install, and come in compact packaging for small or larger jobs. Dorman backs parts with ASE Blue Seal certified support, and you can return through the retailer provided needed.

    • Compatibility / Fitment:Universal fit for standard and oversized fuel inlets (carburetor inlet applications)
    • Material:Nylon and paper (gasket materials)
    • Function / Purpose:Prevent fuel leaks / inlet gasket sealing
    • Thread / Connection Size:Fits standard and oversized inlets (various inlet sizes for gaskets)
    • Package Quantity / Kit Contents:10-pack of inlet gaskets
    • Primary Benefit / Buyer Advantage:Prevents fuel leaks; universal convenience for gasket replacement
    • Additional Feature:Universal fit sizes
    • Additional Feature:ASE Blue Seal support
    • Additional Feature:Multi-piece convenience pack
  3. ApplianPar Banjo Bolt Copper Gasket Kit for Dodge Cummins

    ApplianPar Fuel Return Line Banjo Bolt Copper Gaskets Kit for

    Best for Cummins

    View Latest Price

    In case you’re working on a 12V Dodge Cummins and want a reliable, ready-to-install solution for fuel return connections, the ApplianPar Banjo Bolt Copper Gasket Kit is a smart pick that fits 1989–1998 4BT, 6BT, and 6CT engines. You’ll get six banjo bolts and six copper gaskets plus two check-valve gaskets, so you can tackle multiple connections without running back to the store. The kit replaces OEM numbers 3918188, 3905307, 3903380, so it matches factory fit and sealing. Make sure you confirm fitment for your truck before you install to avoid surprises and guarantee a tight, leak-free seal.

    • Compatibility / Fitment:Dodge Cummins 12V (4BT, 6BT, 6CT) 1989–1998 engines
    • Material:Copper (gaskets) and metal banjo bolts
    • Function / Purpose:Seal fuel return lines / replace banjo bolt gaskets
    • Thread / Connection Size:Matches OEM banjo bolt/gasket sizes for listed Cummins parts (OEM numbers provided)
    • Package Quantity / Kit Contents:Kit with 6 banjo bolts, 6 copper gaskets, 2 check-valve gaskets
    • Primary Benefit / Buyer Advantage:Restores fuel-return sealing for Cummins 12V engines; OEM replacements included
    • Additional Feature:Includes banjo bolts
    • Additional Feature:Check-valve gaskets included
    • Additional Feature:Cummins 12V specific
  4. AUTOVIC Brass Carburetor Inlet Fitting with Washer

    AUTOVIC 8090 Carburetor Inlet Fitting with Washer Brass for Edelbrock

    Reliable Replacement

    View Latest Price

    Should you want a reliable, easy-to-fit inlet for classic Edelbrock square-bore and AFB carburetors, the AUTOVIC 8090 brass carburetor inlet fitting with washer is a strong choice. You’ll find it made from brass, so it resists wear and corrosion in varied environments. It uses a 5/8 inch carburetor-side thread and a 3/8 inch inverted expansion for the inlet, letting you connect to steel or aluminum hard fuel lines. It keeps fuel flowing smoothly and seals well to avoid leaks. Check fitment carefully against the product description and email the seller should you have questions.

    • Compatibility / Fitment:Edelbrock square-bore and AFB carburetors
    • Material:Brass
    • Function / Purpose:Fuel inlet fitting to connect hard fuel lines to carburetor
    • Thread / Connection Size:Carburetor-side thread 5/8″; inlet-side 3/8″ inverted expansion
    • Package Quantity / Kit Contents:Single inlet fitting with washer (1 piece)
    • Primary Benefit / Buyer Advantage:Durable, corrosion-resistant brass fitting for hard-line connections
    • Additional Feature:Inverted expansion inlet
    • Additional Feature:Suited for hard lines
    • Additional Feature:Corrosion-resistant brass
  5. Carburetor Fuel Inlet Repair Fitting for Edelbrock

    Carburetor Fuel Inlet Repair Fitting for Edelbrock 1400 Performer for

    OEM Fit Replacement

    View Latest Price

    Should you want a simple, dependable fix for a leaking Edelbrock carburetor, this brass Carburetor Fuel Inlet Repair Fitting is a great choice for do-it-yourselfers and professional mechanics alike. You’ll like the solid brass build because it resists corrosion and feels sturdy in your hand. It fits Edelbrock Performer 1400 and Thunder AVS series and replaces part 1497, so you won’t guess about compatibility. The 5/8-20 thread and 3/8″ nipple match common fuel lines, and the single-piece pack keeps installation tidy. You’ll find it easy to install, reliable under use, and comforting whenever you need a fast repair.

    • Compatibility / Fitment:Edelbrock 1400 Performer, Thunder AVS (replacement for part 1497)
    • Material:Brass
    • Function / Purpose:Repair/replacement fuel inlet fitting for carburetor
    • Thread / Connection Size:Thread 5/8-20; 3/8″ nipple
    • Package Quantity / Kit Contents:Pack of 1 repair fitting
    • Primary Benefit / Buyer Advantage:Direct replacement for Edelbrock inlet (part 1497) — simple repair
    • Additional Feature:Replaces part 1497
    • Additional Feature:Single-piece repair fitting
    • Additional Feature:Performer/Thunder AVS focus
  6. FKM Fuel Line O-Ring Kit (24 Pack)

    24 Pack FKM Fuel Line O Ring Kit,Compatible with 800

    Maintenance Essential

    View Latest Price

    Mechanics and DIYers who work on fuel systems will love this FKM Fuel Line O-Ring Kit because it gives you durable, fuel-resistant seals in a handy bulk pack that prevents last-minute trips for parts. You get 24 pieces: twelve 5/16″ and twelve 3/8″ O rings, so you can replace seals on common quick-connect fittings without wasting time. Made of FKM, these rings resist gasoline, ethanol blends, diesel, oil, and heat while keeping elasticity. They fit 800 013 fittings and replace several part numbers. You’ll apply a light coat of clean engine oil for easy installation and long service life.

    • Compatibility / Fitment:Quick-connect fuel fittings (800 013 and listed OEM equivalents)
    • Material:FKM (fluoroelastomer)
    • Function / Purpose:Replace O-rings for quick-connect fuel fittings / restore seal
    • Thread / Connection Size:O-ring sizes 5/16″ and 3/8″ (quick-connect fittings)
    • Package Quantity / Kit Contents:24-piece O-ring kit (12 × 5/16″, 12 × 3/8″)
    • Primary Benefit / Buyer Advantage:Chemical- and heat-resistant O-rings for long-lasting fuel-system seals
    • Additional Feature:FKM fluoroelastomer material
    • Additional Feature:Two common sizes
    • Additional Feature:High chemical/heat resistance
  7. Carburetor Fuel Inlet Gasket for Rochester Quadrajet

    Carburetor Fuel Inlet Fitting Gasket for Rochester Quadrajet Dualjet 5/18-18

    Quadrajet Specific

    View Latest Price

    Provided that you’re restoring a Rochester Quadrajet or Dualjet carburetor, this Carburetor Fuel Inlet Fitting Gasket is the practical choice whenever you want a secure, leak-free fuel connection. You’ll get a single fitting kit that includes the male 1-20 threaded inlet, a nut, and a nylon gasket that seals on the end of the inlet housing. The female inverted flare measures 5/8-18, so you can match it to your fuel line without guessing. You’ll appreciate the precise fit for one fuel inlet fitting, the clear specifications, and the simple installation that reduces leaks and worry.

    • Compatibility / Fitment:Rochester Quadrajet and Dualjet carburetors
    • Material:Nylon (gasket) and metal fitting components
    • Function / Purpose:Seal fuel inlet fitting on Quadrajet/Dualjet carburetors
    • Thread / Connection Size:Male thread 1-20; female inverted flare 5/8-18
    • Package Quantity / Kit Contents:Single inlet fitting gasket (fits one inlet)
    • Primary Benefit / Buyer Advantage:Correct sealing for Rochester Quadrajet/Dualjet inlet fittings
    • Additional Feature:Designed for Quadrajet
    • Additional Feature:Nylon gasket included
    • Additional Feature:Includes retaining nut
  8. Fuel Bowl Inlet Gasket Pack for Holley Carburetor

    108-8 (4 Pack) Fuel Bowl Inlet Fitting Gaskets 7/8" ID

    Best for Holley

    View Latest Price

    In case you want a simple, reliable fix for leaking carburetor inlets, this 108-8 four-pack of rubber-coated gaskets is a great choice for do-it-yourselfers and performance enthusiasts alike. You’ll appreciate the 7/8″ inside diameter and thin 1/32″ profile, which seal neatly around 7/8-20 inlet fittings. They work with Holley 2300, 4150, 4160, and 4500 series, and they fit AED, Quick Fuel, Barry Grant, Street Avenger, and Demon-style carbs too. You get four gaskets per pack, so you can replace old seals or keep spares. The rubber coating prevents leaks and soaks up vibration, making installs easier and more reliable.

    • Compatibility / Fitment:Holley 2300/4150/4160/4500 series and compatible Demon-style carburetors
    • Material:Rubber-coated material
    • Function / Purpose:Fuel bowl inlet gasket for Holley carburetors (seal inlet)
    • Thread / Connection Size:Fits 7/8-20 inlet fittings (ID 7/8″)
    • Package Quantity / Kit Contents:Pack of 4 inlet gaskets (108-8, 4 pack)
    • Primary Benefit / Buyer Advantage:Properly sized rubber-coated gaskets for Holley carburetor inlets
    • Additional Feature:7/8″-20 inlet size
    • Additional Feature:Rubber-coated material
    • Additional Feature:Pack of four gaskets
  9. 8089 Carburetor Inlet Fitting for Edelbrock Carburetors

    JADSOrBoBi 8089 Carburetor Inlet Fitting Compatible with Edelbrock, Fuel Banjo

    Most Adjustable

    View Latest Price

    Should you want a simple, reliable fix for fuel routing on Edelbrock square-bore and similar carburetors, this 8089 inlet fitting is a great pick that won’t let you down. You’ll like the brass construction because it won’t corrode and lasts through seasons. It swaps in directly, so you won’t need special tools. The 5/8-20 inlet and 3/8 banjo bolt threads match Edelbrock, Carter AFB, Performer and Thunder AVS models. You can rotate it 360 degrees to aim fuel lines into tight spots, and it reroutes fuel 90 degrees to free up air cleaner space. Installation is fast and confidence-building.

    • Compatibility / Fitment:Edelbrock Square-Bore, Carter AFB, Performer, Thunder AVS carburetors
    • Material:Brass
    • Function / Purpose:90° rotatable inlet fitting to route fuel line and improve clearance
    • Thread / Connection Size:Inlet thread 5/8-20; banjo bolt thread 3/8
    • Package Quantity / Kit Contents:Single carburetor inlet fitting (8089)
    • Primary Benefit / Buyer Advantage:Rotatable 360° brass fitting for flexible fuel routing and clearance
    • Additional Feature:Full 360° adjustability
    • Additional Feature:90° fuel routing
    • Additional Feature:Corrosion-resistant construction
  10. Tecumseh Carburetor Plastic Elbow Inlet Fitting (2-Pack)

    Replace 640363 Tecumseh Carburetor Gas Line Inlet Plastic Elbow Fitting

    Small-Engine Fit

    View Latest Price

    Should you’re repairing a small Tecumseh carburetor, this two-pack of plastic elbow inlet fittings is a smart choice because it’s made to match specific Tecumseh models and makes the fuel connection simple and secure. You’ll find these replace part 640363 fits carburetors 640230, 640231, 640347 and models TC300 and TMO4. You should observe it’s a small inlet fitting and not for 1/4 inch fuel line, so check your manual before installation. The Trevyg branded pieces come as two, weigh little, and offer a neat, reliable fuel inlet hookup. You’ll feel confident making the swap.

    • Compatibility / Fitment:Tecumseh carburetors/models (640230, 640231, 640347; TC300, TMO4)
    • Material:Plastic (elbow fitting)
    • Function / Purpose:Small elbow inlet fitting for Tecumseh carburetors
    • Thread / Connection Size:Tecumseh-specific small inlet (part 640363); not for 1/4″ fuel line
    • Package Quantity / Kit Contents:2-pack plastic elbow fittings
    • Primary Benefit / Buyer Advantage:Exact plastic elbow replacements for specified Tecumseh carburetors
    • Additional Feature:OEM Tecumseh replacement
    • Additional Feature:Small inlet only
    • Additional Feature:Two-pack quantity

Factors to Consider When Choosing Fuel Inlet Repair Fittings Gaskets

Whenever you pick gaskets for fuel inlet repair fittings, you’ll want to check material compatibility and fuel resistance rating so the seal won’t fail over time. Also pay attention to seal type, size, thread and fitment because the right match makes installation easier and prevents leaks. In case you consider ease of installation up front, you’ll save time and avoid frustration while keeping your equipment safe and reliable.

Material Compatibility

Because fuel systems mix chemicals, heat, and pressure, you need gaskets that can handle all three without failing. You should pick materials that resist gasoline and ethanol blends, like FKM fluoroelastomers or compatible nylons, so they won’t swell or deteriorate. Match the material’s temperature rating to under-hood heat, since temperatures can exceed 150°C, and choose materials rated well above that. Consider pressure and stress too. Soft rubbers seal low pressure, while copper or brass backed gaskets stand up to higher pressure and torque without extruding. Check resistance to additives such as MTBE and biodiesel to avoid cracking or hardening. Finally, watch for galvanic corrosion when metals touch, and use compatible metals or insulating layers to prevent fast corrosion.

Seal Type & Size

You already looked at material compatibility, and now it helps to match that choice to the exact seal shape and size you need for a reliable fuel inlet repair. You want the gasket inner and outer diameters to land snugly on the seating surface, so measure the fitting before you buy. Pick thickness to suit the seat; thin 1/32 inch flat seals work for many bowl inlets while thicker options fix uneven faces. Choose the right profile too, flat washer, O ring, or crush washer, so it seals under the bolt torque without squeezing out. Confirm the tolerance and durometer so the seal handles fuel pressure, vibration, and heat. Finally, check seat style compatibility so the gasket seals the mating interface properly.

Thread And Fitment

Get a clear fit and you’ll cut out most leaks and headaches before you start tightening anything. Start ensuring the thread size and type on the carburetor inlet and the fitting so parts mate correctly. Check thread form, straight or tapered, and know whether you need a sealing washer or thread sealant to stop seepage. Match pitch and direction exactly, because mixed pitches or left versus right hand threads will cross thread or fail. Look at engagement length and nearby clearance so the fitting seats fully without bottoming out or hitting other parts. In case threads are damaged, chase or repair them to factory specs prior to fitting a new gasket. Take your time now and you’ll save effort later.

Fuel Resistance Rating

After you’ve checked threads and fitment, turn your attention to how well the gasket will stand up to the fuel itself. You’ll want to match gasket material to the fuels you use. Check compatibility ratings for nitrile NBR, FKM Viton, and EPDM against gasoline, E10 E15, methanol, diesel, and biodiesel, since some rubbers swell or deteriorate quickly in ethanol or biodiesel. Also verify temperature ranges so seals stay flexible in cold starts and hot engine bays. Look for published fuel permeation and swell tests or standards like SAE J1527 or ASTM D471 to judge long term resistance. Finally, factor in ozone and aging ratings and recommended service life so you plan maintenance before leaks start.

Ease Of Installation

Every time you’re picking fuel inlet repair fittings gaskets, ease of installation matters as much as material compatibility because a quick, clean install keeps you from getting grease under your nails and from making costly mistakes. You should match thread sizes and seat types like 5/8-20, 3/8, or inverted flare so parts thread smoothly and you avoid cross-threading. Choose rubber-coated or nylon gaskets that compress easily and let you hand-start threads for a snug fit without special tools. Look for rotatable fittings or flexible seals to simplify alignment and clearance. Buy complete gasket kits with correct sizes so you don’t stop mid-repair. Check that torque values, lubricants, and sealant guidance are provided to prevent leaks and wasted time.

Automotive Staff
Automotive Staff

The Automotive Staff is a group of car enthusiasts who share a passion for cars. They enjoy great design, strong performance, and the driving experience, covering everything from everyday cars to high-performance machines.