Cummins Leak Free Welsh Plug Kits

Leak-Free Welsh Plug Kits for the 12 Valve 6bt and 24 Valve ISB Cummins

Designed and Assembled in Australia 🇦🇺

Tired of dealing with leaky or blown-out factory welsh plugs? Upgrade to our Leak-Free Welsh Plug Kit, designed to suite 12/24 Valve Cummins including the 6.7 Cummins. Built for durability, this kit ensures your engine stays sealed and secure under the harshest conditions.

Why Choose Our Leak-Free Welsh Plug Kit?

✅ Billet Construction – High-grade materials ensure unmatched strength and reliability.
✅ Premium Hardware – Stainless steel and copper components provide maximum corrosion resistance, and sealing capacity.
✅ No More Blowouts – Built to withstand extreme pressure and harsh conditions.
✅ Easy Installation – Includes everything you need for a hassle-free upgrade.

Whether you're hauling heavy loads or chasing big power, our Leak-Free Welsh Plug Kit is built to handle it all. Protect your engine, prevent costly downtime, and upgrade to a solution you can trust.

Leak-Free for Life.

What's Included in the Kit?

• 3 Side Plugs – Precision-machined billet plugs for a perfect, leak-free fit.
• 1 Rear Plug – Engineered to handle extreme pressure and prevent blowouts.
• All Stainless & Copper Hardware – Rust-proof, corrosion-resistant materials for long-lasting durability.
• High Temp O-Rings – Prevent coolant leakage.