VOLVO V40 S40 1.9 This page covers the first-generation VOLVO V40 and S40 in 1.9 T4 form, whose turbocharged four-cylinder carries the B4194 and B4204T codes. A single item is on sale here: the ZRP forged connecting rod set, supplied with its ARP2000 bolts. One precaution applies before ordering, because the S40 name was carried over to a second generation whose T5 engine has nothing in common with this one. Read the code stamped on your own block rather than relying on the model name alone. The matching WISECO forged pistons, in an 81mm bore, are listed on the 1.9L 16v B4194T engine code page.