Standard Ignition RY-978 Collision Alarm Relay

Standard Ignition RY-978 Collision Alarm Relay

Standard Ignition RY-978 is a 12-volt collision alarm relay built with a rectangular connector, male blade terminals, and 9-terminal layout. It is a direct-fit electrical relay for select BMW applications, including BMW Z3, BMW Z8, 318i, 318is, 318ti, 840Ci, 850Ci, and 850CSi models.

Key Features

• 12-volt collision alarm relay for vehicle electrical systems
• Rectangular connector shape for OE-style fitment
• Male blade terminals with 9-terminal configuration
• Relay-only contents
• Standard Ignition RY-978 replacement part number

Fitment Details

• Fits 1998-2002 BMW Z3, N/A
• Fits 2000-2002 BMW Z8, N/A
• Fits 1992-1999 BMW 318i, N/A
• Fits 1992-1999 BMW 318is, N/A
• Fits 1995-1999 BMW 318ti, N/A
• Fits 1994-1997 BMW 840Ci, N/A
• Fits 1993-1997 BMW 850Ci, N/A
• Fits 1994-1995 BMW 850CSi, N/A

What This Relay Helps Address

• Intermittent or inoperative collision alarm relay function
• Electrical faults related to relay switching
• Alarm system response issues tied to relay failure
• BMW electrical service needs requiring a 12V relay with 9 blade terminals
• Replacement needs for a rectangular connector relay assembly

Installation Notes

Verify connector shape, terminal count, terminal gender, and voltage before installation. This relay uses male blade terminals and a rectangular connector, so matching the original electrical interface is important for proper fit. Confirm the vehicle application against the listed BMW fitment before replacement.

Quality Assurance

Standard Ignition supplies electrical replacement parts for service applications, and RY-978 is listed with confirmed BMW fitment and interchange references for direct application matching. This part cross-references BMW and aftermarket numbers such as 61351384761 and AR6484 for the same application.