Chevrolet K20 Transmission Hard Parts
This page brings together transmission hard parts for the Chevrolet K20, covering model years 1975–1986. The range spans torque converters, oil pans, complete assemblies, detent cables, modulator valves, dipsticks, and dipstick tubes — a broad selection of internal and external automatic transmission components. Select your year above and we'll show only the transmission hard parts that fit your Chevrolet K20. Fitment is checked against our vehicle data for every part listed.
Speedmaster PCE221.1021 TH400 Turbo 400 Aluminum Deep Transmission Oil Pan, Cast Finned Black
Speedmaster PCE628.1002 TH400 Turbo 400 Aluminum Heavy Duty Transmission Case SFI
TCI Auto 311600 TH350 Maximizer 4x4 Transmission for NP203/NP205 Transfer Case
Speedmaster PCE550.1006 GM TH400 Heavy Duty Straight Cut Planetary Gear 2.10-1.40 Ratio
TCI Auto 211005 TH400 Super StreetFighter Transmission Chevy 4" Tailshaft
B&M 70418 Tork Master 2400 Torque Converter for 700R4/4L60/4L60E
Derale Performance 14201 Transmission Cooling Pan with Turbulator Technology
Derale Performance 14200 Transmission Cooling Pan TH350 Magnetic Drain Plug Black
Speedmaster PCE221.1024 GM Turbo TH350 Finned Black Extra Capacity Aluminum Transmission Oil Pan
Alliance Torque Converters Remanufactured Automatic Transmission Converter
TCI Auto 743860 GM TH350/TH400/200/200-4R Transmission Dipstick with Locking Handle
TCI Auto 743802 Transmission Dipstick for Chevrolet TH400 Gold Dichromate
What's here for your Chevrolet K20
- Automatic Transmission Torque Converters
- Automatic Transmission Oil Pans — including chrome, polished, and stainless steel options
- Automatic Transmission Assemblies — remanufactured and performance units
- Automatic Transmission Dipsticks and Dipstick Tubes — stainless braided and stainless steel styles
- Automatic Transmission Detent Cables — universal and heavy-duty kits
- Automatic Transmission Modulator Valves
The widest selection here comes from B&M, ATP, Speedmaster, and TCI Auto, spanning everything from remanufactured assemblies to performance and chrome-finish hardware. Other categories Chevrolet K20 owners shop for: Chevrolet K20 Body Frame Parts, Chevrolet K20 Springs and Suspension Parts and Chevrolet K20 Steering Gear and Parts, or browse all Chevrolet K20 parts and accessories.