Engine Gaskets

Q: What is the difference between MLS and composite head gaskets?

MLS (Multi-Layer Steel) gaskets consist of multiple embossed stainless steel layers with elastomeric coatings, offering excellent recovery, durability, and heat resistance for modern engines. Composite (graphite) gaskets provide superior conformability to surface irregularities and are often preferred for heavy-duty diesel and older engine designs.

Q: What is the typical lead time for custom engine gaskets?

Standard catalog gaskets ship within 1–2 business days. Custom-manufactured gaskets requiring new tooling typically ship within 2–3 weeks including design approval and first article inspection.

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Cat	Products Name	Price
AMS-SS-EG-51	Exhaust Manifold Gasket Assembly - Metal (473 Engine)
AMS-SS-EG-52	Upper & Lower Intake Housing Gasket - Metal (483 Engine)
AMS-SS-EG-53	Cylinder Gasket - Metal
AMS-SS-EG-54	Cylinder Gasket - Metal (371 Engine)
AMS-SS-EG-55	Exhaust Gasket - Metal (371 Engine)
AMS-SS-EG-56	Water Pump Gasket - Metal (371 Engine)
AMS-SS-EG-57	Cylinder Gasket - 483 Engine
AMS-SS-EG-58	Exhaust Gasket - Metal (483 Engine)
AMS-SS-EG-59	Water Pump Gasket - Metal (483 Engine)
AMS-SS-EG-60	Water Inlet Port Gasket - Metal (483 Engine)

High-Performance Engine Sealing Solutions

AIMRSE engine gaskets provide reliable sealing for critical joints in internal combustion engines, compressors, and powertrain assemblies. Our comprehensive portfolio includes cylinder head gaskets, intake and exhaust manifold gaskets, valve cover gaskets, oil pan gaskets, and complete overhaul gasket kits. Manufactured from premium materials including multi-layer steel (MLS), graphite composite, and high-temperature elastomers, our gaskets withstand extreme thermal cycling, combustion pressures, and aggressive fluids.

Every gasket is engineered to OEM specifications with precise embossments, sealing beads, and bore geometries. We offer both standard replacement gaskets and performance upgrades for turbocharged, heavy-duty, and alternative fuel applications. Whether you're rebuilding a single engine or sourcing for production, our application specialists ensure the correct fit and material selection for your specific engine platform.

Request Gasket Quote or Cross-Reference

Provide engine model, serial number, or OEM part number for fast identification.

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Cross-reference service available within 24 hours.

Up to 1,000°C Temperature Resistance

MLS / Graphite Material Options

Biofuel / Diesel / Gas Fuel Compatibility

Complete Kits Overhaul Gasket Sets

Engine Gasket Range & Specifications

Comprehensive sealing solutions for cylinder head, manifold, and auxiliary engine joints.

Gasket Type	Material Options	Max Temp (°C)	Max Pressure (bar)	Thickness (mm)	Application	Key Features
Cylinder Head Gaskets	MLS, Graphite Composite, Copper	800 – 1,000	200+	0.5 – 2.0	Diesel, gasoline, natural gas engines	Embossed sealing beads, silicone coating, integrated stopper layers
Exhaust Manifold Gaskets	Graphite, MLS, Fiber-reinforced	600 – 900	10 – 50	0.8 – 1.5	Turbo and naturally aspirated engines	High thermal conductivity, thermal shock resistant
Intake Manifold Gaskets	Nitrile rubber (NBR), Paper, Fiber	-40 – 150	2 – 5	0.4 – 1.0	Gasoline and diesel intake systems	Crush-limiting design, integrated seals
Valve Cover Gaskets	Molded rubber (FKM, ACM, NBR)	-40 – 200	Low pressure	3.0 – 5.0	Overhead cam and pushrod engines	Steel core reinforcement, bolt retention features
Oil Pan Gaskets	Molded rubber, Cork-rubber, RTV silicone	-40 – 150	Low pressure	2.0 – 4.0	Wet and dry sump oil pans	Reusable, crush-limiting, silicone beads
Overhaul Gasket Kits	Application-specific set	As per component	As per component	As per component	Complete engine rebuild	All gaskets, seals, and O-rings for major overhaul

Typical Applications by Industry

AIMRSE engine gaskets seal critical powertrain joints across demanding applications.

Automotive Engine Gaskets

Automotive & Light Truck

OEM-spec cylinder head and manifold gaskets for gasoline and diesel passenger vehicles.

Heavy-Duty Engine Gaskets

Heavy-Duty & Commercial

MLS and graphite gaskets for Class 8 trucks, buses, and off-highway equipment.

Power Generation Gaskets

Power Generation

Genset and standby power engine gaskets for diesel and natural gas prime movers.

Marine Engine Gaskets

Marine & Propulsion

Corrosion-resistant gaskets for inboard marine, workboat, and auxiliary engines.

Industrial Engine Gaskets

Industrial & Compressor

Gaskets for stationary industrial engines, gas compressors, and pump drives.

Performance and Racing Gaskets

Performance & Motorsport

High-temperature MLS and copper head gaskets for turbocharged and high-output engines.

Performance Validation & Field-Proven Reliability

Our fleet of natural gas-powered buses experienced recurring exhaust manifold gasket failures due to high EGTs. Switching to AIMRSE multi-layer steel gaskets eliminated the blow-by issues completely. Over 120,000 miles later, the gaskets remain leak-free, and we've reduced maintenance downtime by over 40%.

Ovia**

120,000+ miles leak-free

We used AIMRSE overhaul gasket kits for a complete rebuild of our standby generator fleet. The kits were comprehensive, with every gasket and seal correctly sized. The generators have logged over 500 hours of runtime since rebuild with zero oil or coolant leaks. The cost savings versus OEM kits was substantial.

Wiam**

500+ hrs leak-free operation

Advanced Material Engineering & Manufacturing

AIMRSE engine gaskets are manufactured using precision tooling, advanced materials, and rigorous quality control to ensure consistent sealing performance.

Multi-Layer Steel (MLS) Technology
Multiple layers of spring-grade stainless steel with precisely formed embossments and elastomeric coatings provide exceptional recovery and micro-sealing.
Graphite Composite Formulations
Flexible graphite facings bonded to steel cores offer excellent conformability and heat transfer for demanding cylinder head applications.
High-Temperature Elastomers
FKM, ACM, and silicone compounds maintain sealing force and flexibility across wide temperature ranges and resist oil, coolant, and blow-by gases.
Precision Die Cutting & Tooling
CNC-controlled die cutting and progressive stamping ensure precise bore alignment and consistent bead geometry for reliable sealing.

Engine gasket quality inspection Fig. 1. Automated optical inspection of MLS cylinder head gasket embossment profile.

Custom Gasket Design & Reverse Engineering

Need a gasket for a legacy engine or a custom sealing solution? Our engineering team provides:

Reverse Engineering: Digitize gasket geometry from physical samples or engine drawings
Material Selection Guidance: Match gasket type to operating temperature, pressure, and fluid exposure
Custom Tooling: Rapid prototyping and production tooling for non-standard bore sizes and patterns
Performance Upgrades: MLS and high-temperature material upgrades for demanding applications
CAD & Drawing Support: 2D DXF files for design verification and integration

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Gasket Failure Analysis & Troubleshooting

Understanding why a gasket failed is key to preventing recurrence. Our analysis includes:

Visual & Microscopic Examination: Identify burn-through, crush, extrusion, or chemical attack patterns
Material Analysis: FTIR and DSC to detect thermal degradation or chemical incompatibility
Clamping Load Assessment: Evaluate bolt preload and head flatness against gasket requirements
Combustion Gas Analysis: Detect evidence of detonation or pre-ignition damage
Comprehensive Failure Report: Root cause determination and corrective action recommendations

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Frequently Asked Gasket Questions

What is the difference between MLS and composite head gaskets?

MLS (Multi-Layer Steel) gaskets consist of multiple embossed stainless steel layers with elastomeric coatings, offering excellent recovery, durability, and heat resistance for modern engines. Composite (graphite) gaskets provide superior conformability to surface irregularities and are often preferred for heavy-duty diesel and older engine designs.

Do you supply complete engine overhaul gasket kits?

Yes. Our overhaul kits include all gaskets, seals, O-rings, and crush washers required for a complete engine rebuild—cylinder head, manifold, oil pan, timing cover, valve stem seals, and more. Provide engine model and serial number for accurate kit assembly.

Can you cross-reference gaskets from OEM part numbers?

Absolutely. We maintain extensive cross-reference databases for major engine manufacturers including Caterpillar, Cummins, Detroit Diesel, John Deere, Perkins, and Volvo. Provide the OEM part number for fast identification.

What surface preparation is required before installing a head gasket?

Cylinder head and block deck surfaces must be clean, dry, and free of oil, coolant, and old gasket material. Surface finish should meet the gasket manufacturer's specification (typically Ra 0.8–1.6 µm for MLS gaskets). Use appropriate sealants only if specified by the gasket manufacturer.

Do you offer performance head gaskets for turbocharged applications?

Yes. We offer MLS head gaskets with upgraded stopper layers and high-temperature coatings specifically designed for turbocharged, supercharged, and high-compression engines. These gaskets provide enhanced resistance to combustion pressure spikes and thermal loading.

What is the typical lead time for custom engine gaskets?

Standard catalog gaskets ship within 1–2 business days. Custom-manufactured gaskets requiring new tooling typically ship within 2–3 weeks including design approval and first article inspection.

Seal Your Engine with Confidence

Whether you need a single replacement head gasket, a complete overhaul kit, or a custom-engineered sealing solution, our application specialists are ready to help. Provide your engine model, serial number, or OEM part number for a fast quotation and material recommendation.