Description
180 AMP Alternator Fits BMW 650 Series 4 8l 2007 2008 2009 2010 TG17C021B
Applications:
BMW Auto and Light Truck 650 SERIES 2007 4.8L
BMW Auto and Light Truck 650 SERIES 2008 4.8L
BMW Auto and Light Truck 650 SERIES 2009 4.8L
BMW Auto and Light Truck 650 SERIES 2010 4.8L
Specifications:
Unit Type: Alternator
Manufacturer: VALEO
Voltage: 12
Rotation: CW
Amperage: 180
Fan Type: IF
Regulator: IR
NOTE: 6-GROOVE PULLEY 49mm OD
Replaces these part numbers:
BMW: 12-31-7-524-972, 12-31-7-525-440, 12-31-7-540-990, 12-31-7-540-992, 12-31-7-542-934, 12-31-7-542-935
VALEO: TG17C021, TG17C021B, TG17C035
VALEO NEW: 437498, 439510, 439566
VALEO SERVICE: 2542785, 2543221, 2543293
Why Choose a 180 Amp High-Output Alternator?
Many 2007–2010 BMW 650i owners experience electrical issues as the vehicle ages. The original alternator can struggle under modern demands — especially with added accessories, aging wiring, or high electrical loads from heated seats, navigation, premium audio, xenon lights, power top operation (convertible models), and climate control.
This 180 amp unit provides several key advantages over worn or lower-output stock units:
- Stronger low-RPM output — better charging at idle and in stop-and-go traffic
- Reduced battery cycling — extends battery life significantly
- Lower operating temperatures — less strain on internal bearings, diodes, and stator windings
- Longer alternator lifespan — runs cooler and under less continuous load
- Supports modern electrical demands — handles factory features plus moderate aftermarket upgrades (LED lighting, amplifiers, radar detectors, etc.) without voltage drops
Unlike lower-amperage alternatives (150A or below), this 180A design maintains stable system voltage even during peak demand, protecting sensitive BMW electronics and preventing premature battery failure.
Order with Confidence from Denparts
- Fast, reliable shipping across Canada
- Competitive pricing on premium Valeo components
- Exact-match fitment for BMW 650i 4.8L 2007–2010
Don’t settle for undersized aftermarket alternators or expensive dealership parts. This Valeo 180 amp alternator (TG17C021 / TG17C021B) gives you OEM-quality performance at a better value perfect for keeping your 6 Series running strong for years to come.
180 AMP Alternator Fits BMW 650 Series 4 8l 2007 2008 2009 2010 TG17C021B


Reviews
There are no reviews yet.