Fitting with spring for the FFI/FI male (6679837) and female (6680018) couplers in the 4BD4FI coupler block (7141939).

FFI/FI coupler block (7141939) is no longer available and is to be replaced with FFH/FH coupler block (7246784). An FFI coupler and fittings will not function in an FFH block and vice versa.

The best way to identify which version block/coupler is installed is by looking for the manufacturers stamp: previous blocks and couplers have an FFI or FI, newer have an FFH or FH. The stamp is visible on the outside sleeve of male couplers. The stamp is also on the side of the block. Blocks that are connected inside the lift arm must be removed to see the stamp.Parts can vary depending on your serial number.