Best MLS Material Manifold Gaskets Boost Power & Durability

Looking for the best MLS manifold gaskets to boost your engine’s power and durability? Discover top-rated options engineered for a flawless seal, extreme heat resistance, and hassle-free performance in LS swaps, daily drivers, and heavy-duty builds.

Your engine’s power and efficiency start with a perfect seal. Multi-Layer Steel (MLS) manifold gaskets are the unsung heroes of high-performance builds, stopping leaks and boosting durability. Whether you’re upgrading a Chevy LS or a Cummins diesel, the right MLS gasket ensures your engine runs stronger, cooler, and quieter.

MLS gaskets last longer. They handle extreme heat. No more exhaust leaks. Installation is stress-free. Your engine deserves this upgrade.

Drivers trust MLS gaskets for flawless performance in LS swaps, daily drivers, and heavy-duty rigs. These gaskets are tested, trusted, and built to endure. Ready to find your perfect match? Let’s dive into the top picks that deliver results.

List of Top 10 MLS Material Manifold Gaskets

Title	Best For	Price
Michigan Motorsports LS Multi-Layer Steel (MLS) Header Manifold Exhaust Gasket \| Direct Replacement for GM 12617944 \| High-Performance Seal for LS1 LS2 LS3 LS6 LQ4 LQ9 4.8 5.3 5.7 6.0 6.2 Engines	This product is perfect for LS engine owners and performance builders who need a durable, leak-proof seal. It’s ideal for DIYers and mechanics tackling LS swaps, header installs, or engine rebuilds with GM 12617944 compatibility.	View on Amazon (paid link)
P&B PB Exhaust Manifold MLS Gasket kit Compatible for Dodge Cummins 12v, 4bt, 6bt	This P&B PB Exhaust Manifold MLS Gasket kit is perfect for Dodge Cummins owners who want a reliable and durable solution for their 12v, 4bt, or 6bt engines. It’s ideal for those seeking better sealing than single-layer gaskets, with its multi-layer steel design.	View on Amazon (paid link)
12617944 Exhaust Manifold Gasket Set Compatible with Silverado Sierra Suburban 1500 2500 HD Yukon CTS Escalade MLS LS LQ LM7 4.8L 5.3L 5.7L 6.0L 6.2L, Manifold Gaskets with Bolts	This exhaust manifold gasket set is perfect for anyone with a compatible GM vehicle needing a reliable replacement. It’s ideal for DIY enthusiasts or professional mechanics looking for a durable, secure fit.	View on Amazon (paid link)
12617944 2 PCS LS MLS Header Exhaust Manifold Gasket Set Fits for Silverado Sierra Suburban 1500 2500 HD for Yukon CTS Escalade MLS LS LQ LM7 4.8L 5.3L 5.7L 6.0L 6.2L Engines Header Gasket	This product is perfect for anyone with a Chevrolet, GMC, Cadillac, Pontiac, or Buick vehicle from 1997 to 2020 that has an LS series engine. It’s ideal for those needing a reliable, high-quality exhaust manifold gasket to reduce noise and vibration for a smoother ride.	View on Amazon (paid link)
12617944 LS MLS Exhaust Manifold Gasket & Bolts Kit Compatible with GMC Sierra Yukon, Chevy Silverado 1500 Suburban LS Header Gasket LS1 LS2 LS3 LS6 LQ4 LQ9 LM7 4.8L 5.3L 5.7L 6.0L 6.2L OEM# 12558573	This product is perfect for vehicle owners and mechanics needing a durable, easy-to-install exhaust manifold gasket kit. It fits Chevy, GMC, Cadillac, and Buick models with LS, LS1, LS2, LS3, LS6, LQ4, LQ9, LM7 engines, offering high-temperature resistance and a secure seal for reliable performance.	View on Amazon (paid link)
Sorello 2 PCS MLS Exhaust Header Manifold Gasket with Bolts Compatible with Cadillac CTS Escalade for Chevy Camaro Silverado GMC Pontiac for LS Engines 4.8L 5.3L 5.7L – Replaces 12617944 12600530	This product is perfect for LS engine owners of Cadillac, Chevrolet, GMC, and Pontiac vehicles needing durable exhaust gaskets. It ensures improved performance and easy installation without modifications.	View on Amazon (paid link)
12617944 MLS Exhaust Manifold Gasket & 12 Bolt Kit – High Temp Resistant for Chevy Silverado GMC Sierra 1500 2500 Suburban 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LS6 LQ4 LQ9 Engine	This product is perfect for truck and SUV owners with LS engines like Chevy Silverado, GMC Sierra, or Suburban models. It offers an exact OE replacement with high heat resistance and durable stainless steel bolts for reliable performance.	View on Amazon (paid link)
Hconcet New Exhaust Manifold Gaskets with Bolts Compatible with Cummins ISL, ISL-G, QSL, ISC, QSC, 8.3L, 8.9L, Replaces 3937479	This product is perfect for Cummins engine owners who need a reliable replacement for their exhaust manifold gaskets. It’s ideal for those with ISL, ISL-G, QSL, ISC, or QSC engines, ensuring a perfect fit and durable performance.	View on Amazon (paid link)
Mievlyo LS MLS Exhaust Manifold Gasket Set GM Genuine Parts 12617944 MLS Header Exhaust Manifold Gasket for 97-16 LS1 LS3	This exhaust manifold gasket set is perfect for car enthusiasts and DIY mechanics who want a reliable, high-quality replacement for their LS series engines. It’s easy to install and works with many LS models, making it a great choice for hassle-free repairs.	View on Amazon (paid link)
Strongthium LS Multi Layer MLS Header Exhaust Manifold Gasket 12617944 12558573 12600530 for GM LS1 LS2 LS3 LS6 LQ4 LQ9	This gasket is perfect for GM LS engine owners needing a direct-fit replacement. It works with LS1, LS2, LS3, LQ4, LQ9, and other LS-series engines in Chevy, GMC, Cadillac, and Hummer models from 1997-2020.	View on Amazon (paid link)

Detailed Reviews

Finding the best MLS material manifold gaskets starts with precision-tested picks. Our top 10 list blends expert analysis and real-world feedback to highlight reliable, high-performance options. Each gasket ensures leak-proof seals, extreme-heat resistance, and easy installation for LS engines and Cummins models. Trust this guide to deliver value-driven choices that boost durability and engine efficiency—your project deserves flawless results.

1. Michigan Motorsports LS Multi-Layer Steel (MLS) Header Manifold Exhaust Gasket | Direct Replacement for GM 12617944 | High-Performance Seal for LS1 LS2 LS3 LS6 LQ4 LQ9 4.8 5.3 5.7 6.0 6.2 Engines

Michigan Motorsports LS Multi-Layer Steel (MLS) Header Manifold Exhaust Gasket | Direct Replacement for GM 12617944 | High-Performance Seal for LS1 LS2 LS3 LS6 LQ4 LQ9 4.8 5.3 5.7 6.0 6.2 Engines

The Michigan Motorsports LS MLS Header Manifold Exhaust Gasket is a direct replacement for GM 12617944. It’s perfect for LS engines, fitting models like LS1, LS2, LS3, and more. This gasket ensures a tight seal for high-performance use.

Its multi-layer steel (MLS) construction offers maximum durability and prevents exhaust leaks. It’s easy to install, requiring no special tools or modifications.

This gasket is essential for LS swaps, performance builds, and engine maintenance. It eliminates common issues like leaks and noise, making it a must-have for any LS project.

Pros	Cons
Perfect fit for LS1, LS2, LS3, LS6, LQ4, LQ9 engines. Multi-Layer Steel (MLS) ensures durability and leak-proof sealing. Direct replacement for GM 12617944; no modifications needed. Resists blowouts, warping, and exhaust leaks under stress. Ideal for LS swaps, performance builds, and engine rebuilds.	Not for non-LS engines, limiting its use in other vehicles. No included hardware, requires separate purchase for complete installation. Higher cost than basic gaskets, may not fit all budgets.

Perfect For:

This product is perfect for LS engine owners and performance builders who need a durable, leak-proof seal. It’s ideal for DIYers and mechanics tackling LS swaps, header installs, or engine rebuilds with GM 12617944 compatibility.

Ready to Purchase?

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2. P&B PB Exhaust Manifold MLS Gasket kit Compatible for Dodge Cummins 12v, 4bt, 6bt

This gasket kit uses Multi Layer Steel Gaskets for stronger, longer-lasting seals. It seals better than single layer gaskets, reducing leaks and engine stress.

The kit fits Dodge Cummins 12v, 4bt, 6bt engines and works as a universal replacement. Its part number PB-CEG5443-K ensures easy ordering and correct match.

It’s built tough. It handles high heat and pressure. It keeps your engine running smooth.

Pros	Cons
Multi-layer steel ensures superior sealing for your engine. Better than single-layer gaskets for long-lasting performance. Universal fit works seamlessly with Dodge Cummins engines. Part number PB-CEG5443-K guarantees perfect compatibility.	Not for all engines, check compatibility first. Universal fit may need extra adjustments. No installation tools included, buy separately.

Perfect For:

This P&B PB Exhaust Manifold MLS Gasket kit is perfect for Dodge Cummins owners who want a reliable and durable solution for their 12v, 4bt, or 6bt engines. It’s ideal for those seeking better sealing than single-layer gaskets, with its multi-layer steel design.

Ready to Purchase?

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3. 12617944 Exhaust Manifold Gasket Set Compatible with Silverado Sierra Suburban 1500 2500 HD Yukon CTS Escalade MLS LS LQ LM7 4.8L 5.3L 5.7L 6.0L 6.2L, Manifold Gaskets with Bolts

12617944 Exhaust Manifold Gasket Set Compatible with Silverado Sierra Suburban 1500 2500 HD Yukon CTS Escalade MLS LS LQ LM7 4.8L 5.3L 5.7L 6.0L 6.2L, Manifold Gaskets with Bolts

Upgrade your vehicle’s exhaust system with the 12617944 Exhaust Manifold Gasket Set. This complete kit includes 2 gaskets and 12 bolts, ensuring a hassle-free installation. It’s compatible with Silverado, Sierra, and more, making it a versatile choice.

Designed for LS engines, this set fits 4.8L to 6.2L models like LS1, LS3, and LM7. It replaces part numbers 12617944 and 12600530, guaranteeing reliable performance. Premium materials ensure durability and stability for your exhaust manifold.

Engineered for a secure fit, these gaskets deliver long-lasting performance. They’re a dependable solution for your vehicle’s needs.

Pros	Cons
Complete set with 2 gaskets and 12 bolts for easy installation. Fits LS engines, ensuring wide compatibility for your vehicle. Premium materials guarantee durability and long-lasting performance. Reliable replacement for part numbers 12617944 and 12600530.	No instructions included, might confuse first-time installers. Limited to LS engines, not universal for all vehicles. Bolts may need extra torque, check before use.

Perfect For:

This exhaust manifold gasket set is perfect for anyone with a compatible GM vehicle needing a reliable replacement. It’s ideal for DIY enthusiasts or professional mechanics looking for a durable, secure fit.

Ready to Purchase?

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4. 12617944 2 PCS LS MLS Header Exhaust Manifold Gasket Set Fits for Silverado Sierra Suburban 1500 2500 HD for Yukon CTS Escalade MLS LS LQ LM7 4.8L 5.3L 5.7L 6.0L 6.2L Engines Header Gasket

12617944 2 PCS LS MLS Header Exhaust Manifold Gasket Set Fits for Silverado Sierra Suburban 1500 2500 HD for Yukon CTS Escalade MLS LS LQ LM7 4.8L 5.3L 5.7L 6.0L 6.2L Engines Header Gasket

This gasket set replaces part numbers like 12617944 and 12558573. It fits LS series engines (excluding LS7) in Chevrolet, GMC, Cadillac, and Buick models from 1997 to 2020.

Made of multi-layer steel (MLS), these gaskets handle high heat and seal well. They cut noise and vibration for a quieter ride.

Includes 2 gaskets. Tested for quality before shipping. Contact us within 24 hours for help.

Pros	Cons
Fits many models, ensuring wide compatibility for your vehicle. Direct replacement, making installation quick and easy. High-quality MLS material for durable, reliable sealing. Reduces noise and vibration, delivering a smoother ride.	Limited to specific engine types and models. No tools or installation guide included. Only 2 gaskets in the set.

Perfect For:

This product is perfect for anyone with a Chevrolet, GMC, Cadillac, Pontiac, or Buick vehicle from 1997 to 2020 that has an LS series engine. It’s ideal for those needing a reliable, high-quality exhaust manifold gasket to reduce noise and vibration for a smoother ride.

Ready to Purchase?

View Price on Amazon (paid link)

5. 12617944 LS MLS Exhaust Manifold Gasket & Bolts Kit Compatible with GMC Sierra Yukon, Chevy Silverado 1500 Suburban LS Header Gasket LS1 LS2 LS3 LS6 LQ4 LQ9 LM7 4.8L 5.3L 5.7L 6.0L 6.2L OEM# 12558573

12617944 LS MLS Exhaust Manifold Gasket & Bolts Kit Compatible with GMC Sierra Yukon, Chevy Silverado 1500 Suburban LS Header Gasket LS1 LS2 LS3 LS6 LQ4 LQ9 LM7 4.8L 5.3L 5.7L 6.0L 6.2L OEM# 12558573

The 12617944 LS MLS Exhaust Manifold Gasket & Bolts Kit is a reliable replacement for your vehicle’s exhaust system. It fits many Chevy, GMC, Buick, Cadillac, Hummer, and Pontiac models, ensuring a perfect match for your car or truck.

This kit is made from high-quality materials, providing a secure seal and long-lasting performance. It’s easy to install, durable, and resistant to high temperatures.

Pros	Cons
Fits many models, ensuring wide compatibility for your vehicle. High-quality steel offers durability and heat resistance. Easy installation saves time and effort. Secure seal maintains engine performance and safety.	Potential fitment issues in some listed vehicles. Precise alignment required to avoid leaks. Installation may demand mechanical skill for best results.

Perfect For:

This product is perfect for vehicle owners and mechanics needing a durable, easy-to-install exhaust manifold gasket kit. It fits Chevy, GMC, Cadillac, and Buick models with LS, LS1, LS2, LS3, LS6, LQ4, LQ9, LM7 engines, offering high-temperature resistance and a secure seal for reliable performance.

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6. Sorello 2 PCS MLS Exhaust Header Manifold Gasket with Bolts Compatible with Cadillac CTS Escalade for Chevy Camaro Silverado GMC Pontiac for LS Engines 4.8L 5.3L 5.7L – Replaces 12617944 12600530

Sorello 2 PCS MLS Exhaust Header Manifold Gasket with Bolts Compatible with Cadillac CTS Escalade for Chevy Camaro Silverado GMC Pontiac for LS Engines 4.8L 5.3L 5.7L - Replaces 12617944 12600530

Upgrade your ride with the Sorello MLS Exhaust Header Manifold Gasket Kit! This kit is designed to prevent exhaust leaks and boost your engine’s performance.

It’s a direct fit for many popular GM vehicles. Easy installation means less time in the shop. Improve your fuel efficiency today!

Pros	Cons
Fits many cars, from Cadillac to Chevy, GMC, and Pontiac. Boosts engine power, cuts leaks, and saves fuel. Easy to install, no extra changes needed. Strong steel build, handles high heat with ease.	Compatibility not guaranteed for all listed vehicles. Included bolts may not fit all vehicle models. Potential fitment issues due to multiple part numbers.

Perfect For:

This product is perfect for LS engine owners of Cadillac, Chevrolet, GMC, and Pontiac vehicles needing durable exhaust gaskets. It ensures improved performance and easy installation without modifications.

Ready to Purchase?

View Price on Amazon (paid link)

7. 12617944 MLS Exhaust Manifold Gasket & 12 Bolt Kit – High Temp Resistant for Chevy Silverado GMC Sierra 1500 2500 Suburban 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LS6 LQ4 LQ9 Engine

12617944 MLS Exhaust Manifold Gasket & 12 Bolt Kit - High Temp Resistant for Chevy Silverado GMC Sierra 1500 2500 Suburban 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LS6 LQ4 LQ9 Engine

Exact OE Replacement for Chevy and GMC LS engines. Direct fit with OE part numbers like 12617944 and 551696. Seamless swap for factory or aftermarket exhaust manifolds.

Built for LS engines (LS1 to L33) and 4.8L–6.2L V8s. Fits trucks, SUVs, and cars like Silverado, Sierra, Camaro, and Corvette.

MLS material resists extreme heat and pressure. Includes 12 rust-resistant bolts with washers for tight seals. Free returns if damaged or faulty.

Pros	Cons
Direct fit for OE part numbers ensures easy replacement. Compatible with all LS engines (excluding LS7) and many car brands. High-density MLS withstands extreme heat and pressure. Durable stainless steel bolts resist rust and corrosion. Free returns for damaged or faulty parts.	No installation tools included, so you’ll need to buy them separately. Compatibility check required before purchase to avoid wrong orders. Limited to LS engines, excluding LS7 and other engine types.

Perfect For:

This product is perfect for truck and SUV owners with LS engines like Chevy Silverado, GMC Sierra, or Suburban models. It offers an exact OE replacement with high heat resistance and durable stainless steel bolts for reliable performance.

Ready to Purchase?

View Price on Amazon (paid link)

8. Hconcet New Exhaust Manifold Gaskets with Bolts Compatible with Cummins ISL, ISL-G, QSL, ISC, QSC, 8.3L, 8.9L, Replaces 3937479

Hconcet Exhaust Manifold Gaskets fit Cummins engines. They come with bolts for easy installation. Part numbers: 5259851, 3937479, 3943191.

Made of MLS material, these gaskets resist heat and leaks. They work with ISL, ISL-G, QSL, ISC, QSC, 8.3L, and 8.9L engines.

Always check your part number before buying. Colors may vary due to screen lighting.

Pros	Cons
Perfect fit for Cummins ISL, ISL-G, QSL, ISC, QSC engines. Durable MLS material ensures long-lasting performance. Includes bolts for easy, hassle-free installation. Replaces OEM parts 3937479, saving time and money.	Fitment issues if part number doesn’t match exactly Color may differ from images due to lighting Multiple part numbers may confuse buyers

Perfect For:

This product is perfect for Cummins engine owners who need a reliable replacement for their exhaust manifold gaskets. It’s ideal for those with ISL, ISL-G, QSL, ISC, or QSC engines, ensuring a perfect fit and durable performance.

Ready to Purchase?

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9. Mievlyo LS MLS Exhaust Manifold Gasket Set GM Genuine Parts 12617944 MLS Header Exhaust Manifold Gasket for 97-16 LS1 LS3

Get ready for top-notch performance with this gasket set. It’s built tough for your LS engine. Enjoy a perfect fit every time.

This set uses premium Multi-Layer Steel for lasting strength. It’s a direct replacement for your old gasket, making installation a breeze.

You get two gaskets in each convenient package. This means you’re all set for a smooth and reliable exhaust system.

Pros	Cons
Durable MLS construction ensures long-lasting performance. Direct OEM replacement for perfect fit and easy installation. Meets strict quality standards for reliable performance. Compatible with LS1, LS3 and more (excluding LS7) for versatile use. Includes 2 gaskets for complete, hassle-free installation.	Not for LS7 engines, limiting some high-performance applications. No installation tools included, requiring extra purchases for setup. Two gaskets only, may not cover all exhaust manifold needs.

Perfect For:

This exhaust manifold gasket set is perfect for car enthusiasts and DIY mechanics who want a reliable, high-quality replacement for their LS series engines. It’s easy to install and works with many LS models, making it a great choice for hassle-free repairs.

Ready to Purchase?

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10. Strongthium LS Multi Layer MLS Header Exhaust Manifold Gasket 12617944 12558573 12600530 for GM LS1 LS2 LS3 LS6 LQ4 LQ9

This Strongthium LS Multi Layer MLS Header Exhaust Manifold Gasket fits GM LS series engines (except LS7). It matches OEM numbers 12617944, 12558573, 12600530 for easy replacement.

It works with Chevy, GMC, Pontiac, Hummer, Cadillac, and Buick vehicles from 1997-2020. Compatible engines include 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 6.6L V8s. Models like Camaro, Corvette, Tahoe, and Silverado are covered.

Designed for LS1, LS2, LS3, LQ4, LQ9, and other LS engines, this gasket suits repair or performance upgrades. The multi-layer steel (MLS) design ensures durability and leak-free performance. Package includes one high-quality gasket for easy installation.

Pros	Cons
Fits many GM LS engines, ensuring wide compatibility. OEM quality with exact part numbers for perfect fit. Durable multi-layer design for long-lasting performance. Easy installation, saving time and effort.	Excludes LS7 engines Only 1 gasket per package

Perfect For:

This gasket is perfect for GM LS engine owners needing a direct-fit replacement. It works with LS1, LS2, LS3, LQ4, LQ9, and other LS-series engines in Chevy, GMC, Cadillac, and Hummer models from 1997-2020.

Ready to Purchase?

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Buying Guide

MLS manifold gaskets ensure a tight seal and long-lasting performance. They boost engine efficiency and reduce leaks.

Compatibility: Check the list of compatible engines and part numbers. A precise fit ensures hassle-free installation and optimal performance.
MLS Construction: Multi-layer steel handles extreme heat and pressure. This design outlasts traditional gaskets.
Leak Prevention: A quality MLS gasket stops exhaust leaks and cuts engine noise. It maintains power and efficiency.
Installation Ease: Look for direct replacements that require no modifications. Kits with bolts included simplify setup.
Durability: High-temp resistance ensures long-term reliability. These gaskets endure stress from daily driving or heavy-duty use.
Application: Choose gaskets suited for LS swaps, diesel engines, or stock replacements. Match to your engine type (e.g., LS1, Cummins).
Included Components: Full kits with rust-resistant bolts and washers save time. Avoid mismatched hardware headaches.
Part Number Match: Confirm OE part numbers like 12617944 or PB-CEG5443-K. Exact matches ensure proper fit.

Upgrade your engine with tested, trusted MLS gaskets for stronger, cooler, quieter performance.