Quick view ZF BMW 2800CS Automatic Transmission ZF 3HP20 24001201051 $899.99 BMW 2800CS Automatic Transmission ZF 3HP20 24001201051. ZF 1024.401 026. Removed from a BMW 2800CS with 67,xxx miles. Transmission was flushed and sludge was found. Good but needs to be flushed... Add to Cart Add to Cart