Designed for 3-inch flanges, the exhaust gasket creates a robust seal for high-temperature silencer connections. Mechanics and DIYers gain confidence during repairs and roadside fixes, Strongthium Exhaust Gasket. Does the bolt spacing match your 3-inch 2-bolt flange?
⚡ At a Glance
- • Sealing Performance: Graphite-faced, five-layer galvanised construction resists leaks under thermal cycling
- • Best for: Repair garages and DIYers replacing 3-inch 2-bolt exhaust gaskets
- • Not ideal for: Non-standard or custom flanges with different bolt patterns
Five-layer galvanised sheet with graphite construction, 2mm total thickness, fits 3-inch/76.2mm flange ID. Supplied as a two-piece pack for high-temperature silencer applications.
Reliable exhaust seal - thanks to five-layer galvanised sheet with graphite
Construction uses five galvanised metal layers with a graphite facing, creating a compressible surface that conforms to flange irregularities. Total thickness measures 2mm (0.078 inches), giving the gasket enough mass to sustain a metal-to-metal seal under heat.
Long-term resistance to leaks and thermal cycling reduces repeat visits for re-sealing. Installers can expect a dependable mating surface at the flange joint.
Straightforward compatibility check - with clearly specified bolt spacing
Bolt hole measurements are given as centre-to-centre 105mm, inner bolt to inner bolt 90mm, and outer bolt to outer bolt 121mm, for use with 3-inch (76.2mm) flange ID two-bolt flanges. Guidance notes compatibility with bolt hardware smaller than 12mm (1/2 inch).
A quick measurement against existing flange dimensions confirms fit before purchase, saving time at the workshop. Suitable for direct replacements where bolt pattern matches.
Built for high temperature use - with 2mm total gasket thickness
The 2mm/.078 inch thickness, combined with galvanised metal layers, provides structural integrity under exhaust heat and vibration. Graphite facing aids sealing at elevated temperatures where mating surfaces may expand.
Durable under silencer and exhaust system temperatures, reducing the chance of blow-by or noisy joints. A two-piece pack keeps spares on hand for quick swaps.
✨ The 4 Key Reasons for Strongthium Exhaust Gasket
- Five-layer construction - Resists leakage and copes with thermal expansion
- Graphite-faced sealing - Conforms to uneven flange surfaces for a tight seal
- Two gaskets per pack - Ready replacements reduce repeat visits to the workshop
- Nylon bag packaging - Keeps parts protected and organised during storage
📋 Technical Details at a Glance
- Category: BISS
- Flange ID: 3-inch / 76.2mm
- Bolt hole centre-to-centre: 105mm / 4.13 inches
- Inner bolt spacing: 90mm / 3.55 inches
- Outer bolt spacing: 121mm / 4.76 inches
❓ Frequently Asked Questions
Q: What flange size does this gasket fit?
A: Fits a 3-inch (76.2mm) flange ID designed for 2-bolt flanges, with bolt measurements provided for verification.
Q: How thick is the gasket and what is it made from?
A: Total thickness is 2mm (0.078 inches), made from a five-layer galvanised sheet with a graphite-facing for improved sealing.
Q: Is this suitable for high-temperature exhaust use?
A: Yes, construction is specified for heavy-duty, high-temperature silencer applications and supplied as a two-piece pack.
🏆 Our Verdict
Ideal for mechanics and DIYers needing a direct replacement for 3-inch 2-bolt flanges. The multi-layer galvanised construction with graphite facing and clear bolt-spacing measurements makes a convincing choice for durable exhaust sealing. Even if initial cost is a consideration, robust materials and pack quantity suggest good long-term value.
