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A graphic showing the ultimate OBS R4 to Sanden Complete Conversion Package with all of its components

AC compressor upgrade, AC Hose Kits, Chevy OBS, Chevy OBS AC hoses, Kwik AC bracket, Kwik AC hose kit, R4 to Sanden Conversion, Sanden mini AC compressor

The Ultimate OBS R4-to-Sanden Conversion

Ditch the leaky pancake with our ultimate OBS R4-to-Sanden Conversion kit!

Wayne Powell | June 28, 2026

AC compressor upgrade, Sanden AC compressor, Sanden HD AC compressor, Sanden mini AC compressor
Sanden AC Compressors: HD or Mini?
How much AC compressor capacity do you really need?
Wayne Powell | January 16, 2025
AC compressor upgrade, Chevy OBS, GM R4 AC compressor, Kwik AC bracket, Kwik AC hose kit, LS swap, Sanden AC compressor, Sanden mini AC compressor
Which AC compressor is the right choice for your Chevy OBS truck project?
Chevy OBS truck builders may need or want to change AC compressors. Here are some choices and information to help decide.
Wayne Powell | August 9, 2024