Lifetime Warranty!
This replaces BMW OEM Part Number 11127835170
Compatible with both OEM and aftermarket valve covers
Designed for performance. Built for longevity.
The MLT Engineering Billet Spark Plug Tubes are precision-machined from aircraft-grade billet aluminum, purpose-built for the legendary BMW S65 engine.
Each tube features our exclusive reinforced sidewall architecture, engineered to increase rigidity and structural integrity. Combined with a U.S. military-spec coating, these tubes deliver exceptional resistance to heat distortion, corrosion, warpage, and hairline cracks — even under extreme track or high-performance conditions.
Every set includes premium oil- and heat-resistant O-rings to ensure a perfect OEM-tight seal and a completely leak-free installation. And for total peace of mind, all tubes and O-rings are backed by our Lifetime Warranty.
Key Features:
Aircraft-grade billet aluminum construction
Reinforced sidewall design for maximum durability
U.S. military-spec coating for heat and corrosion resistance
Precision fitment for BMW S65 engines
Lifetime Warranty on billet tubes and O-rings