NGK 48835 NGK COP (Rail) Ignition Coil Assy. For 90-99 Saab 9-3 900 9000. Coil Type: COP (Rail System). Fits what vehicles: 1990-1998 Saab 9000, 1994-1998 Saab 900, 1999 Saab 9-3. NGK's coil housings are manufactured with premium thermoplastic and high-quality epoxy for superior dielectric strength and durability.