745I 645I V8 (A)

Tovesageneral Motors prepares every used gearbox to the same standard, and this 745I 645I V8 (A) is no exception: pulled from a running donor vehicle, drained, inspected for wear on the housing and gear train, and function-tested for shift quality before it is offered as a automatic transmission replacement unit.

Key Specifications: We keep the internals to factory spec rather than substituting aftermarket parts, so ratios and housing dimensions match what originally shipped in the BMW. Transmission type: Automatic (torque converter). We list the gear count as application-dependent for the 745I 645I V8 (A): several ratio sets were fitted across different markets and trim levels, so confirm against your old unit or VIN before ordering. Compatible engine(s): 745I engine variants. Since the 745I 645I V8 (A) platform spans multiple drivetrain configurations, confirm your chassis's drive layout against the listing before ordering to be certain of fitment.

Performance Characteristics: Because it is an automatic, shift quality and longevity are tied closely to fluid condition, so we recommend a full fluid and filter change at installation regardless of how the unit tested, to start the next service interval on a clean baseline.

Common Applications: This transmission is matched to BMW vehicles built around the 745I driveline noted above. Because gearboxes are frequently shared or lightly modified across several body styles and model years, confirm the bellhousing bolt pattern, input shaft spline count, and electronic or hydraulic control variant against your own vehicle before ordering. Send us your VIN and we will double-check fitment before your order ships.