Karlyn-STI 238Rw/Loom Spark Plug Wire Set Right Bank Cylinders 1-6 with Loom

The Karlyn-STI 238Rw/Loom is a premium OE-replacement spark plug wire set engineered for the right bank (cylinders 1–6) of BMW V12 engines. Assembled in the USA using German-engineered components, this wire set is a direct fit replacement that includes the factory-style wire loom for a clean, professional installation.

Karlyn-STI is a recognized OE ignition supplier to BMW and Audi/VW of North America, and their wire sets are built to meet or exceed original equipment specifications. This set utilizes OE components sourced from Bremi Fahrzeug-Elektrik of Germany, a leading OEM ignition supplier for European manufacturers.

Key Features:

• Dual-layer Silicone-over-Silicone construction — two layers of high-grade silicone insulation resist temperatures up to 600°F and protect against voltage leaks
• 19-strand tinned copper core — provides superior conductivity and long-term corrosion resistance
• German-engineered spark plug connectors — oversized, corrosion-resistant clip-lock terminals ensure a positive electrical connection every time
• OE-style wire loom included — maintains factory routing and protects wires from heat and abrasion
• RFI/EMI suppression — stainless steel magnetic conductive windings prevent radio frequency interference with onboard electronics
• Right bank coverage — covers cylinders 1 through 6 on BMW V12 applications
• 100% tested for conductivity and proper resistance before packaging
• OEM cross-reference: BMW part number 12 12 1 742 887

Karlyn-STI wire sets are backed by a limited warranty and are proudly assembled in the USA with components engineered to German OE standards. This set pairs with the 238Lw/Loom for complete V12 coverage of the left bank (cylinders 7–12).