Used 4-Speed Automatic Transmission 106,000 Miles – 2002 Buick Bonneville / LeSabre 3.8L FWD

🔧 Part #: 400-03980
📦 Stock #: NOF

Description:

OEM used 4-speed automatic transmission with 106,000 miles. Removed from a compatible Buick Bonneville or Buick LeSabre donor vehicle equipped with the 3.8L V6 engine (non-supercharged application). This is the GM 4T65E automatic transmission with 3.05 axle ratio (RPO F83), designed for select early-2000s FWD platforms.

Mileage: 106,000 Miles

VEHICLE FITMENT:

• 2002 Buick Bonneville

• 3.8L V6 Engine
• Front-Wheel Drive (FWD)
• No Supercharged Option
• 4T65E 4-Speed Automatic Transmission
• 3.05 Axle Ratio (RPO F83)

• 2002 Buick LeSabre

• 3.8L V6 Engine
• Front-Wheel Drive (FWD)
• 4T65E 4-Speed Automatic Transmission
• 3.05 Axle Ratio (RPO F83)

TRANSMISSION SPECIFICATIONS:

• OEM GM Automatic Transmission
• 4T65E 4-Speed Automatic
• Front-Wheel Drive (FWD)
• MN3 Application Code
• 3.05 Final Drive Ratio (RPO F83)
• Complete Transmission Assembly

PART NUMBERS & IDENTIFICATION:

• GM Part Number: 89059819
• Ident: PBB ’02
• Ident: PCB ’02

CONDITION:

• Genuine OEM Used Transmission
• 106,000 Original Miles
• Removed from running donor vehicle
• Inspected prior to removal
• Normal wear consistent with mileage and age
• Ready for installation

IMPORTANT NOTES:

• Confirm axle ratio (3.05 F83) matches your vehicle before purchase.
• VIN verification is strongly recommended for proper fitment.
• Torque converter, mounts, sensors, and external accessories are not guaranteed unless specified.
• Professional installation is recommended.
• Transmission service (fluid/filter) required prior to installation.

Please verify compatibility before ordering.