1998 Buick Riviera 6 231 3.8L VIN 1 Engine - 140K miles Lr4 VIN 1 (6 th digit

VIN 1 (6 th digit

(transmission ID HTZ) AT Transmission (2006-2007) - 90K-120K miles

7L Engine (2004) - 90K-120K miles

AWD - Engine (2013-2015) - 60K-90K miles

1998 Buick Riviera 6 231 3.8L VIN 1 Engine - 140K miles Lr4 VIN 1 (6 th digit1998 Buick Riviera 6 231 3. 8L VIN 1 Engine 140K miles This used OEM engine is listed as its own product, so the price shown belongs to this exact listing. It is a practical replacement choice for buyers who want an OEM style part without dealer new pricing. Please verify fitment before ordering. Match the year, make, model, engine size, drivetrain, VIN notes, transmission type, and production details in the title with the part currently in your