Every engine, whether in a classic motorbike or a modern hybrid, relies on one small component to keep it efficient and safe – the exhaust gasket.
At Stephens Gaskets, we’ve spent over seven decades designing, pressing and cutting exhaust gaskets that meet the toughest mechanical and environmental demands.
Operating from our ISO-certified facility in the West Midlands, we combine precision engineering with a service tailored to every customer – from vintage car clubs and OEM engine builders to industrial equipment manufacturers.
What Does an Exhaust Gasket Do?
An exhaust gasket seals the joint between two connecting exhaust sections – for example between the manifold and the cylinder head. Without a perfect seal, toxic gases could leak into the vehicle or surrounding workspace.
Our gaskets ensure:
- Gas-tight sealing under high temperature and vibration.
- Noise and emission reduction by preventing leaks.
- Extended component life by evenly distributing thermal and mechanical load.
Because safety and performance depend on accuracy, every Stephens Gaskets exhaust seal is manufactured to exacting tolerances with verified materials and quality control.
Materials We Use for Exhaust Gaskets
Historically, exhaust gaskets were made from asbestos and graphite, but today’s industry demands safer, stronger alternatives.
Stephens Gaskets manufactures from:
1. Multi-Layer Steel (MLS)
Preferred for modern engines – resists extreme pressure and temperature cycling.
2. Copper
Provides excellent thermal conductivity and is fully re-annealable for re-use in motorsport and aerospace.
3. Graphite Composite
Flexible and seals imperfect surfaces without adhesives.
4. Novus, Klinger, and Rubber Composites
Ideal for industrial or low-temperature exhaust systems.
5. Neoprene and Cork Blends
Used for custom low-pressure applications or classic vehicle restoration.
Each material is chosen for its specific thermal range and durability, ensuring your gasket performs in any environment.
Precision Manufacturing in the West Midlands
Our Birmingham facility is equipped with advanced laser-cutting machines, press tools, and CNC equipment, allowing us to produce everything from a single prototype to high-volume orders.
Benefits include:
- Micron-accurate tolerances for perfect fit and repeatability.
- Rapid turnaround for MRO and production projects.
- Tooling flexibility for bespoke gasket designs.
- Full traceability with material certificates supplied on request.
We produce pressed parts daily – including intricate multi-layered and profile-cut exhaust gaskets for global clients.
Industries We Supply
1. Automotive
OEM and aftermarket gaskets for cars, motorcycles and commercial vehicles.
2. Aerospace
High-temperature seals for exhaust manifolds and auxiliary power units.
3. Marine
Corrosion-resistant gaskets for diesel and outboard engines.
4. Energy & Power
Gas-turbine and generator flange seals.
5. Motorsport & Vintage Restoration
Custom-cut copper and composite gaskets for bespoke engine builds.
Every sector we serve benefits from Stephens Gaskets’ commitment to precision and personal service.
Why Customers Choose Stephens Gaskets
- Over 75 years of engineering heritage in exhaust gasket design.
- ISO 9001:2015 certified quality control.
- Custom design support for unique engine configurations.
- Competitive pricing and short lead times.
- UK manufacturing and global delivery.
From vintage motor clubs to Tier-1 automotive suppliers, we remain the go-to partner for reliable, UK-made exhaust gaskets.
Safety and Performance Assurance
A poorly fitted or low-quality gasket can lead to dangerous fume leaks, engine damage, and expensive repairs.
By sourcing directly from Stephens Gaskets, you ensure that every component is tested, certified, and ready for installation – delivering long-term engine safety and performance.
FAQs (High-Intent Buyer Queries)
1. Where can I buy custom exhaust gaskets for my engine project?
You can order directly from Stephens Gaskets, a UK-based exhaust gasket manufacturer offering standard and bespoke designs for automotive, marine, and industrial applications. Call 0121 544 5808 or email sales@stephensgaskets.co.uk for a quote.
2. What materials do you recommend for high-temperature exhaust systems?
For modern high-output engines, we recommend multi-layer steel (MLS) or annealed copper for thermal stability and re-usability. For light industrial use, graphite or composite gaskets offer cost-effective performance.
3. Can you manufacture small prototype batches or one-off designs?
Yes – we specialise in rapid prototype production, creating small batches to test fit and performance before full-scale manufacture.
4. Are your exhaust gaskets certified and traceable?
Absolutely. All materials and processes comply with ISO 9001 standards and come with certificates of conformity and batch traceability.
Do you offer bulk pricing for OEM or trade orders?
Yes – we supply OEMs, automotive dealerships, and engine manufacturers with bulk discount pricing and scheduled delivery options for ongoing contracts.
Conclusion
For precision engine sealing and competitive pricing, partner with Stephens Gaskets – the UK’s leading exhaust gasket manufacturer.
Contact Stephens Gaskets
Phone: +44 (0)121 544 5808
Email: sales@stephensgaskets.co.uk
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