1988 Chevrolet R20 Suburban V8 7.4L 12si High Output Alternator JS Alternators but if you're looking at

but if you're looking at modifying it down the road (winches/lights/etc) and want to future proof

This is a direct fit high-output alternator for the 2002-2004 Oldsmobile Alero 2

This is a direct fit high-output alternator for the 1973-1975 Chevrolet Monte Carlo 7

This is a direct fit high-output alternator for the 1970-1974 Chevrolet Corvette 7

1988 Chevrolet R20 Suburban V8 7.4L 12si High Output Alternator JS Alternators but if you're looking atFitment: This is a direct fit high output alternator for the 1988 Chevrolet R20 Suburban 7. 4L. Being a direct fit, this alternator fits directly into your stock alternator location. Plug: This high output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high output alternator, and the other side will plug into the factory plug. NOTE: If you require charging at a certain voltage setpoint, we offer a