Volvo Penta 831972 855444 831986 Timing Wheel Spring Tension Pulley AQ131 B230 NOS also this the water fitting

also this the water fitting for power steering components

but general rule was V6 outboards

0L 140hp 4 cylinder cyl Inline 4 GM Chevy Alpha One Motor

Found on both the Reverse lock assemblies that have inter-lock switches as well as those that did not

From a AQ-280 Sterndrive paired with an AQ130 4-cylinder

Volvo Penta 831972 855444 831986 Timing Wheel Spring Tension Pulley AQ131 B230 NOS also this the water fittingItem Details & Compatibility From a AQ131A 4 Cylinder Sterndrive (B230 Block) Looks like most of these parts were used with AQ131A AQ131B AQ131C AQ131D AQ151A AQ151B AQ151C 230A 230B 250A 250B applications, but there are some nuances with certain models so always make sure to check with your parts diagram. Notable Part Number(s) Volvo Penta 831972 x2 Wheel Volvo Penta 855444 Companion Flange Volvo Penta 1357621 Locating Plate Volvo Penta 1357620 Plate