2016-2019 BMW 7 Series Power Cable 9381588
Specifications
OEM number
9381588
Donor year
2016
Body style
Sedan
Fuel
Gas
Engine size
4.4 L
Transmission
Auto
Drivetrain
AWD
Suspension
Air
Trim
Xdrive m package
Donor mileage
87000
Paint code
A89 Imperial Blue Brilliant Effect
About this part
Also known as
Battery Cable
Positive Battery Cable
Main Power Cable
Starter Cable
Alternator Cable
B+ Wire
What this part does
The Power Cable is a heavy-gauge electrical harness responsible for transmitting high-amperage current from the battery to the main power distribution junction, starter motor, and alternator. Because the vehicle it came from utilizes a rear-mounted battery, this cable runs the length of the chassis to supply critical engine bay components with uncompromised voltage.
When a power cable fails, usually due to internal corrosion, chafing against the chassis, or terminal degradation from excessive heat, it creates high resistance in the electrical system. This voltage drop leads to slow or no-crank conditions, erratic behavior from multiple electronic control modules, charging system failures, or a complete loss of vehicle power.
Fits these vehicles
| Make | Model | Years | Engine |
|---|---|---|---|
| BMW | 750i xDrive | 2016-2019 | 4.4L |
| BMW | 750i | 2016-2019 | 4.4L |
| BMW | Alpina B7 xDrive | 2017-2019 | 4.4L |
OEM and interchange numbers
9381588
61129381588
61-12-9-381-588
Before you order
Verify your original part number matches exactly, as BMW power cables are highly specific to the vehicle's electrical load and wheelbase. Inspect the connection points on your vehicle's power distribution block and battery safety terminal (BST) prior to installation; a new cable will not solve voltage issues if the junction points are already melted or heavily oxidized. Proper routing along the undercarriage is critical to prevent future chafing and grounding against the chassis.
