10 Best Spark Plug Tube Seals for 2026

Spark plug tube seals keep oil out of the spark plug wells, protect ignition parts, and stop leaks that can foul plugs or cause misfires.

This list highlights durable options like FEL-PRO ES 72393/ES 72105, NewYall six‑packs for Toyota/Lexus, MOTOKU for Dodge/Jeep, plus Nissan/Infiniti kits and whole valve cover assemblies from Autotecnica and MITZONE.

Choose nitrile for general oil resistance or silicone for higher heat tolerance, and pick full kits with gaskets and bolts to simplify installation.

Read on for exact fits, OEM cross‑references, and installation tips.

Top Spark Plug Tube Seal Picks

FEL-PRO ES 72393 Spark Plug Tube Seal Set FEL-PRO ES 72393 Spark Plug Tube Seal Set Professional GradeIntended function: Spark plug tube sealing for engine repair/maintenanceCompatibility / Fit: Application-specific fit; validated to OE specsMaterial / Construction: Application-specific sealing materials (engineered for durability)VIEW LATEST PRICERead Our Analysis
Valve Cover Spark Plug Tube Seal Gaskets (2PCS) LESHIAUTO 2PCS Valve Cover Spark Plug Tube Seal Gasket Compatible Budget-Friendly PickIntended function: Seals spark plug tubes / valve cover spark plug wellsCompatibility / Fit: Specific Ford/Lincoln model years listed (part BR3Z6C535B)Material / Construction: Nitrile rubber (high-temp, wear-resistant)VIEW LATEST PRICERead Our Analysis
FEL-PRO ES 72105 Spark Plug Tube Seal Set FEL-PRO ES 72105 Spark Plug Tube Seal Set Trusted ClassicIntended function: Spark plug tube sealing for vehicle enginesCompatibility / Fit: Application-specific fit; Fel-Pro model ES72105 (vehicle-specific)Material / Construction: Application-specific sealing materials (Fel-Pro specified)VIEW LATEST PRICERead Our Analysis
NewYall Spark Plug Tube Seals Pack of 6 NewYall Pack of 6 Spark Plug Tube Seal for Lexus Wide CompatibilityIntended function: Spark plug tube seals for listed Toyota/Lexus enginesCompatibility / Fit: Listed Toyota/Lexus models and years (OEM 11193-70010)Material / Construction: OEM-referenced material for spark plug tube seal (aftermarket rubber)VIEW LATEST PRICERead Our Analysis
MOTOKU Spark Plug Tube Seal Gasket for Dodge/Jeep MOTOKU Spark Plug Tube Seal Gasket for Dodge Avenger Challenger Best For Chrysler/RAMIntended function: Spark plug tube seal gasket replacement for Dodge/Jeep/RAMCompatibility / Fit: Fit list for Dodge/RAM/Chrysler/Jeep models (3.6L/3.2L)Material / Construction: Rubber seal/gasket compatible with engines (materials suited for 3.6L/3.2L)VIEW LATEST PRICERead Our Analysis
Spark Plug Tube Seal Set for Infiniti Models ASTOU ES72481 Spark Plug Tube Seal Set Repalce for INFINITI OEM ReplacementIntended function: Spark plug tube seals (6-piece) for Infiniti/NissanCompatibility / Fit: Infiniti/Nissan models listed (ES72481 / 1327631U10)Material / Construction: Materials meet or exceed factory standards (rubber/sealing compound)VIEW LATEST PRICERead Our Analysis
FEL-PRO ES 72967 Spark Plug Tube Seal Set FEL-PRO ES 72967 Spark Plug Tube Seal Set High-Performance PickIntended function: Spark plug tube sealing for engine repair/maintenanceCompatibility / Fit: Application-specific fit; Fel-Pro model ES72967Material / Construction: Application-specific sealing materials (Fel-Pro specified)VIEW LATEST PRICERead Our Analysis
Autotecnica Engine Valve Cover with Gasket & Seals Autotecnica 13270-3TA0A Engine Valve Cover, Includes Gasket and Spark Plug All-In-One KitIntended function: Included spark plug tube seals with valve cover assemblyCompatibility / Fit: Valve cover matched to OE dimensions (specific part NI1418704)Material / Construction: Valve cover materials durable and heat-resistant; includes seals (rubber)VIEW LATEST PRICERead Our Analysis
Valve Cover Set with Gaskets & Bolts for Nissan Valve Cover Set with Bolts & Oil Cap & Gaskets Complete ReplacementIntended function: Pre-installed spark plug tube seals in valve cover kitCompatibility / Fit: Valve cover set matched to VK56DE 5.6L applications (list of Nissan/Infiniti years)Material / Construction: Durable sealing materials for gaskets and tube seals (pre-installed)VIEW LATEST PRICERead Our Analysis
Spark Plug Tube Seal Kit for Nissan & Infiniti 6PCS Spark Plug Tube Seal Set fit for Nissan Altima Contaminant DefenderIntended function: Spark plug tube seal kit to prevent contamination and vibrationCompatibility / Fit: Compatible Nissan/Infiniti models listed (OE ES72481); confirm before orderingMaterial / Construction: High-quality rubber / silicone / fluororubber options describedVIEW LATEST PRICERead Our Analysis

More Details on Our Top Picks

  1. FEL-PRO ES 72393 Spark Plug Tube Seal Set

    FEL-PRO ES 72393 Spark Plug Tube Seal Set

    Professional Grade

    View Latest Price

    In case you want a spark plug tube seal set that fits like it came from the factory and won’t give you headaches during installation, FEL-PRO ES 72393 is a smart pick. You’ll find the set engineered for repair work, so each seal matches exact vehicle needs and slips into place without fuss. Because it meets or exceeds original equipment specs, you can trust the fit, form, and function during service. Durable materials hold up under heat and pressure, giving long term sealing you can count on. Whether you’re a pro or doing DIY, this set reduces mistakes and restores reliable engine sealing.

    • Intended function:Spark plug tube sealing for engine repair/maintenance
    • Compatibility / Fit:Application-specific fit; validated to OE specs
    • Material / Construction:Application-specific sealing materials (engineered for durability)
    • Quantity / Pack size:Set (quantity matching application — implied set)
    • OE / Part number reference:Meets/exceeds OE; FEL-PRO ES 72393
    • Intended user / installation:Professional and DIY repair applications
    • Additional Feature:Validated fit/form/function
    • Additional Feature:Meets/exceeds OE specs
    • Additional Feature:Repair-environment engineered
  2. Valve Cover Spark Plug Tube Seal Gaskets (2PCS)

    LESHIAUTO 2PCS Valve Cover Spark Plug Tube Seal Gasket Compatible

    Budget-Friendly Pick

    View Latest Price

    In case you want a durable, no-fuss fix that keeps oil out of your spark plug wells, these 2PCS Valve Cover Spark Plug Tube Seal Gaskets are a smart choice for Ford and Lincoln owners who need reliable protection for engines from 2007 through 2019. You’ll get two nitrile rubber seals that resist heat, wear, and corrosion, so they last in tough conditions. You can remove the valve cover, pull old seals, press the new ones into place, and reassemble with basic tools. They match OEM part numbers BR3Z6C535B and BR3Z-6C535-B and help protect ignition parts from oil and debris.

    • Intended function:Seals spark plug tubes / valve cover spark plug wells
    • Compatibility / Fit:Specific Ford/Lincoln model years listed (part BR3Z6C535B)
    • Material / Construction:Nitrile rubber (high-temp, wear-resistant)
    • Quantity / Pack size:2 pieces (2× valve cover gasket seals)
    • OE / Part number reference:Replaces BR3Z6C535B / BR3Z-6C535-B
    • Intended user / installation:DIY or professional replacement (installation overview provided)
    • Additional Feature:Nitrile rubber construction
    • Additional Feature:High-temperature resistant
    • Additional Feature:Broad Ford/Lincoln fitment
  3. FEL-PRO ES 72105 Spark Plug Tube Seal Set

    FEL-PRO ES 72105 Spark Plug Tube Seal Set

    Trusted Classic

    View Latest Price

    Provided that you’re a DIY mechanic or a pro technician who wants reliable, exact-fit spark plug tube seals, the FEL-PRO ES 72105 is a smart pick you can trust. You’ll like that Fel-Pro designed these seals to match original equipment fit and function, so installation goes smoothly and leaks become a thing of the past. They use application-specific materials validated for sealing performance and durability, so you can count on long service in repair environments. The set meets or exceeds OE specs, includes manufacturer warranty details, and falls under automotive replacement parts, giving you confidence upon ordering.

    • Intended function:Spark plug tube sealing for vehicle engines
    • Compatibility / Fit:Application-specific fit; Fel-Pro model ES72105 (vehicle-specific)
    • Material / Construction:Application-specific sealing materials (Fel-Pro specified)
    • Quantity / Pack size:Spark plug tube seal set (Fel-Pro ES72105; typically multi-piece set)
    • OE / Part number reference:Fel-Pro ES72105 (manufacturer part ES72105)
    • Intended user / installation:Professional use / repair environment (Fel-Pro positioning)
    • Additional Feature:100% vehicle sealing
    • Additional Feature:Application-specific materials
    • Additional Feature:Discontinued-by-manufacturer note
  4. NewYall Spark Plug Tube Seals Pack of 6

    NewYall Pack of 6 Spark Plug Tube Seal for Lexus

    Wide Compatibility

    View Latest Price

    Should you want a reliable, exact-fit replacement that keeps oil out of your spark plug wells and protects engines across many Toyotas and Lexuses, the NewYall Spark Plug Tube Seals Pack of 6 is a smart choice. You’ll find these seals fit dozens of models from Camry, Corolla, and Tacoma to Avalon, Highlander, and select Lexus ES, GS, IS, and RX years. They match OEM part 11193-70010 so installation is straightforward once you confirm VIN or engine code. You’ll appreciate the snug fit, simple swap procedure, and peace of mind given leaks are less likely to harm ignition components.

    • Intended function:Spark plug tube seals for listed Toyota/Lexus engines
    • Compatibility / Fit:Listed Toyota/Lexus models and years (OEM 11193-70010)
    • Material / Construction:OEM-referenced material for spark plug tube seal (aftermarket rubber)
    • Quantity / Pack size:Pack of 6
    • OE / Part number reference:OEM reference 11193-70010
    • Intended user / installation:Aftermarket replacement; VIN/parts-catalog verification recommended
    • Additional Feature:Wide Toyota/Lexus coverage
    • Additional Feature:OEM ref 11193-70010
    • Additional Feature:VIN/engine verification advised
  5. MOTOKU Spark Plug Tube Seal Gasket for Dodge/Jeep

    MOTOKU Spark Plug Tube Seal Gasket for Dodge Avenger Challenger

    Best For Chrysler/RAM

    View Latest Price

    You’ll appreciate the MOTOKU spark plug tube seal gasket whenever you need a reliable, engine-specific fix for Dodge, RAM, Chrysler, or Jeep models with 3.6L or 3.2L engines, since it’s built to replace worn seals and stop oil leaks that can foul spark plugs and cause misfires. You’ll find fitment for many Dodge and RAM models like Charger, Challenger, Durango, and 1500 trucks, plus ProMaster vans. It also fits Chrysler sedans and minivans and Jeep Cherokee, Wrangler, Grand Cherokee, and Gladiator. Verify your year, model, and engine before installing. You’ll like the straightforward swap and reduced worry.

    • Intended function:Spark plug tube seal gasket replacement for Dodge/Jeep/RAM
    • Compatibility / Fit:Fit list for Dodge/RAM/Chrysler/Jeep models (3.6L/3.2L)
    • Material / Construction:Rubber seal/gasket compatible with engines (materials suited for 3.6L/3.2L)
    • Quantity / Pack size:Single gasket per tube (fit for engines with multiple; implied set)
    • OE / Part number reference:Fits engines commonly using factory part numbers for 3.6L/3.2L applications (aftermarket MOTOKU reference)
    • Intended user / installation:Aftermarket replacement; verify vehicle/year/engine before installation
    • Additional Feature:3.6L/3.2L engine focus
    • Additional Feature:Covers wide FCA lineup
    • Additional Feature:Years through 2025 listed
  6. Spark Plug Tube Seal Set for Infiniti Models

    ASTOU ES72481 Spark Plug Tube Seal Set Repalce for INFINITI

    OEM Replacement

    View Latest Price

    Should you drive an Infiniti or Nissan with VQ-series engines and want a reliable, long-lasting fix for oil leaks around the spark plugs, this Spark Plug Tube Seal Set is a smart choice because it replaces the worn seals that let oil foul coils and plugs. You get ES72481, listed also as 1327631U10, with six seals to match your VQ six-cylinder layout. The material meets or exceeds factory standards, so it should last after you install it. Check fitment for FX35, G35, I30, I35, M35, QX4 and many Nissan models. Confirm compatibility and consider pro installation to avoid mistakes.

    • Intended function:Spark plug tube seals (6-piece) for Infiniti/Nissan
    • Compatibility / Fit:Infiniti/Nissan models listed (ES72481 / 1327631U10)
    • Material / Construction:Materials meet or exceed factory standards (rubber/sealing compound)
    • Quantity / Pack size:6 spark plug tube seals included
    • OE / Part number reference:ES72481 / 1327631U10
    • Intended user / installation:Aftermarket direct-replacement; professional installation recommended
    • Additional Feature:Includes 6 seals
    • Additional Feature:Replacement for 1327631U10
    • Additional Feature:Nissan+Infiniti cross-fitment
  7. FEL-PRO ES 72967 Spark Plug Tube Seal Set

    FEL-PRO ES 72967 Spark Plug Tube Seal Set

    High-Performance Pick

    View Latest Price

    Should you want a professional-grade repair that won’t leave you worrying about leaks later, the FEL-PRO ES 72967 spark plug tube seal set is a smart pick for do-it-yourselfers and techs alike. You get seals built to meet or exceed original equipment specs, so fit and function line up without guesswork. The application-specific design helps you install quickly and correctly, and the materials target full vehicle sealing and long life. Fel-Pro validates each set for repair use, so you can trust durability and performance. Packaging is compact, the weight is light, and warranty details come from the maker.

    • Intended function:Spark plug tube sealing for engine repair/maintenance
    • Compatibility / Fit:Application-specific fit; Fel-Pro model ES72967
    • Material / Construction:Application-specific sealing materials (Fel-Pro specified)
    • Quantity / Pack size:Spark plug tube seal set (multi-piece)
    • OE / Part number reference:Fel-Pro ES72967 (manufacturer part ES72967)
    • Intended user / installation:Professional use / repair environment (Fel-Pro positioning)
    • Additional Feature:Compact lightweight package
    • Additional Feature:Precise OE-targeted dimensions
    • Additional Feature:Newer 2016 availability
  8. Autotecnica Engine Valve Cover with Gasket & Seals

    Autotecnica 13270-3TA0A Engine Valve Cover, Includes Gasket and Spark Plug

    All-In-One Kit

    View Latest Price

    Should you want a reliable fix for oil leaks and misfires, the Autotecnica 13270-3TA0A valve cover with gasket and spark plug tube seals is the smart choice for DIYers and pros alike. You’ll get a complete kit that replaces cracked valve covers causing vacuum or oil leaks that can harm engine parts. It fits OE dimensions, so you can install it without wrestling parts, and its metal or plastic build resists corrosion, oil vapor, and heat. Coming in at about 12 pounds and compact in size, it comes with gasket and tube seals. Check the manufacturer warranty and Amazon 30-day return if needed.

    • Intended function:Included spark plug tube seals with valve cover assembly
    • Compatibility / Fit:Valve cover matched to OE dimensions (specific part NI1418704)
    • Material / Construction:Valve cover materials durable and heat-resistant; includes seals (rubber)
    • Quantity / Pack size:Valve cover includes gasket and spark plug tube seals (kit)
    • OE / Part number reference:Part NI1418704 (Autotecnica 13270-3TA0A)
    • Intended user / installation:Replacement valve cover assembly including seals — intended for repair/install
    • Additional Feature:Includes valve cover
    • Additional Feature:Preinstalled seals/gasket
    • Additional Feature:Metal/plastic durable construction
  9. Valve Cover Set with Gaskets & Bolts for Nissan

    Valve Cover Set with Bolts & Oil Cap & Gaskets

    Complete Replacement

    View Latest Price

    Should you drive a Nissan or Infiniti with the VK56DE 5.6L V8 engine and want a straightforward, ready-to-install fix, this valve cover set with pre-installed spark plug tube seals is a smart choice for you. You get two durable valve covers, gaskets, bolts, an oil cap, and a pre-installed PCV valve for easy swap. The kit fits Armada, Titan, Pathfinder, NV models and QX56, matching OEM numbers so you won’t guess fitment. MITZONE builds these to resist leaks and last. In case you need help, message the seller for fitment or warranty support.

    • Intended function:Pre-installed spark plug tube seals in valve cover kit
    • Compatibility / Fit:Valve cover set matched to VK56DE 5.6L applications (list of Nissan/Infiniti years)
    • Material / Construction:Durable sealing materials for gaskets and tube seals (pre-installed)
    • Quantity / Pack size:Valve cover set includes pre-installed spark plug tube seals (complete kit)
    • OE / Part number reference:OEM references listed (13264-ZE01A, 13264-ZE00A, 132707S000, etc.)
    • Intended user / installation:Complete replacement kit for direct install (ready-to-install valve covers)
    • Additional Feature:Complete kit (covers+bolts)
    • Additional Feature:Preinstalled tube seals
    • Additional Feature:VK56DE V8 5.6L fitment
  10. Spark Plug Tube Seal Kit for Nissan & Infiniti

    6PCS Spark Plug Tube Seal Set fit for Nissan Altima

    Contaminant Defender

    View Latest Price

    Provided you own a Nissan or Infiniti from the late 1990s to mid-2000s and want a reliable, long-lasting repair, this 6-piece spark plug tube seal kit is a smart pick because it’s made to fit those engines precisely and keeps moisture and dirt out where it matters most. You’ll find fitment for Altima, Frontier, Maxima, 350Z and many Infiniti models, so you can confirm OE part ES72481 before ordering. The seals block dust and water, damp vibrations, and cut wear between tube and head. Made from rubber or fluororubber, they resist heat, oil, and coolant. Seller support helps with installation and questions.

    • Intended function:Spark plug tube seal kit to prevent contamination and vibration
    • Compatibility / Fit:Compatible Nissan/Infiniti models listed (OE ES72481); confirm before ordering
    • Material / Construction:High-quality rubber / silicone / fluororubber options described
    • Quantity / Pack size:6-piece spark plug tube seal set
    • OE / Part number reference:OE part ES72481 referenced (confirm OE number before ordering)
    • Intended user / installation:Aftermarket replacement kit; confirm fitment and seek assistance if needed
    • Additional Feature:Vibration-damping function
    • Additional Feature:Chemical-resistant elastomers
    • Additional Feature:Prevents moisture ingress

Factors to Consider When Choosing Spark Plug Tube Seals

Whenever you choose spark plug tube seals, start through checking material compatibility and temperature resistance so the seal matches your engine’s oil and heat conditions. Also consider about fitment accuracy and installation complexity, since a precise fit and straightforward install cut down on leaks and shop time. Finally, weigh durability and wear so you pick a seal that lasts and keeps you confident on the road.

Material Compatibility

Because your engine lives in a hot, oily, and sometimes harsh world, picking the right spark plug tube seal material matters more than you might believe. You want a material that stays flexible and resists chemicals. For oil exposure, nitrile NBR is a common choice because it resists hydrocarbons and additives. Should fuels or harsher oils contact the seal, FKM fluororubber gives stronger resistance. Silicone or fluorosilicone work well whenever higher heat and ozone resistance are needed, but check elasticity data so they do not harden. Look at compression set figures under repeated cycles; aim for low numbers to keep a tight seal. Match durometer to fit: softer seals conform, harder seals resist wear and extrusion. Check ozone and oxidation ratings for longevity.

Temperature Resistance

Heat is the concealed test that decides whether a spark plug tube seal will last or fail, and you want a seal that keeps its shape and softness even after long service. You’ll look for seals that handle steady engine bay heat between 150°C and 250°C without hardening or cracking. Pick materials with high thermal stability, like silicone or fluorosilicone, because they stay elastic where standard nitrile turns brittle near 120°C. Also consider short term heat spikes above 300°C, especially near exhaust parts, and choose formulations built for rapid thermal cycling. Check temperature ratings and low compression set figures at high temperature to judge heat aging resistance. Better heat resistance usually means longer service life and fewer oil leaks over time.

Fitment Accuracy

You’ve just read how heat can wreck a seal, and now let’s look at fitment accuracy since a perfectly heat-resistant seal still fails provided it doesn’t sit right. You want the exact OEM part number or engine-specific match. That guarantees the outer diameter, lip profile, and installed height line up so oil stays out. Next, verify material and hardness fit your engine’s temperature and fluid exposure so the seal won’t harden or swell prematurely. Also check the internal bore and taper to match the spark plug or coil stem to avoid compression issues or gaps. Be certain the flange, retainer steps, and mounting geometry align with the valve cover or head to prevent distortion whenever you torque down. Measure OD, ID, and length against service tolerances.

Durability And Wear

Durability matters a lot whenever you pick spark plug tube seals, and you want ones that will last through heat, oil, and constant vibration. You should choose seals made from high temperature elastomers like nitrile, silicone, or fluororubber because they stay flexible at 200 to 300°C and resist hardening and cracking. Also check chemical resistance so oil, fuel, and additives won’t swell or degrade the rubber over time. Pay attention to compression set numbers and material hardness since a lower compression set under aging tests means better long term sealing. For engines that vibrate, consider abrasion resistance, tear strength, and elongation at break. Finally, favor parts proven via accelerated aging, thermal cycling, and oil immersion tests for longer service life.

Installation Complexity

Once you begin a spark plug tube seal job, plan for more than just the parts and a socket set because installation complexity can change how long the job takes and how confident you’ll feel about the result. You might need to remove the valve cover and related parts, and that adds 30 to 90 minutes per bank based on layout and fastener access. You’ll usually get along with a ratchet, sockets, torque wrench, and screwdrivers, but some engines demand specialty tools like boot pullers or PCV tools to avoid damage. Pay attention to proper seating and orientation of the seal. Tighten bolts in the correct sequence to manufacturer torque. Inspect mating surfaces for residue, corrosion, or warping and plan extra work should surfaces be compromised.

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.