Cadillac CTS 2014-2015 Automatic Transmission 6L45 2.0L RWD Remanufactured

Description

Clutch-to-clutch shift timing and planetary gear reduction deliver positive torque transfer across turbocharged four-cylinder power bands. This remanufactured 2014-2015 CTS 6L45 transmission 12809T provides direct replacement for rear-wheel-drive Cadillac CTS sedans with 2.0L LTG engines. You must flush cooler lines with heated solvent and reset adaptation values before completing your initial road evaluation.

Shot-peened A380 die-cast aluminum forms the longitudinal casing, inspected through non-destructive dye penetrant for bellhousing stress fractures. Forged steel planetary carriers handle 2.0L turbo engine torque without gear deflection or spline wear. We install upgraded 1-2-3-4 clutch wave plates, reamed pressure regulator sleeves, Kolene steel plates, and high-energy Raybestos GPZ friction packs. Replaced pump stator bushings maintain constant line pressure. The dry transmission weighs 190 lbs and ships inside a 36 by 24 by 22 inch crate.

Key Features of GM 6L45

Technicians buy GM 6L45 transmission units to eliminate harsh second gear shift clunks and broken wave plates without paying extreme dealer pricing. This commercial remanufactured transmission assembly provides refined gear changes and dependable torque delivery for your Cadillac CTS transmission replacement project.

• Hardened 1-2-3-4 clutch wave plate prevents fatigue failure and clutch drum destruction.
• Upgraded pressure regulator valve sleeve stops hydraulic pressure spikes inside the valve body.
• Re-machined valve body passages hold 22 inHg during calibrated vacuum tests.
• Dynamically balanced remanufactured torque converter stops driveline vibration and protects front pump bushings.
• Raybestos GPZ friction plates resist extreme thermal glaze during prolonged performance driving.
• Hardened output shaft splines handle full throttle acceleration without tooth twist or stripping.
• Pre-tested internal TEHCM solenoid module ensures precise 20 ms line pressure modulation in all gears.

SuperFlow Dynamometer Diagnostic Telemetry Data

Technicians subject every remanufactured 6L45 gearbox to hot and cold testing cycles on a SuperFlow transmission dyno. Pressure gauges verify main hydraulic line pressures holding 180 PSI in Drive and 240 PSI in Reverse at 1600 RPM. Electronic shift solenoids switch circuits within 20 ms without spool valve hang. Valve body circuits hold 20 inHg vacuum on precision bench gauges. The test program validates zero torque converter clutch slip at cruising speed. Thermal imaging cameras confirm leak-free front pump and rear extension seals under load.

Field Installation Directives Negative Filter

Spin the torque converter inward through three positive gear drops until the converter clears the front bellhousing face. Check engine block dowels for corrosion before bolting the bellhousing flat. Do not buy this factory calibrated unit for CTS-V supercharged builds, manual swaps, or track race chassis.

• Flush cooler lines with hot chemical solvent to clear burned friction clutch sediment.
• Fill with approved Dexron VI fluid through the fill port at 40°C pan temperature.
• Clear transmission adaptation registers using diagnostic software before taking the car on highways.

Nationwide Warranty Freight Crate Contents

Your purchase brings a nationwide 3-Year/100,000-Mile warranty protecting against internal mechanical damage and hydraulic pressure control faults. The sturdy wooden freight crate houses a balanced torque converter, technician installation guide, dynamometer inspection pass slip, cooler flush checklist, and a pre-printed core return bill of lading for simple return transit.