Volvo Penta 831972 855444 831986 Timing Wheel Spring Tension Pulley AQ131 B230 NOS 0L 140hp 4 cylinder cyl

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

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

this accommodates the Flat edge on the propeller shafts so this likely needs to still be used with early style MerCruiser Propellers

also this the water fitting for power steering components

Volvo Penta 831972 855444 831986 Timing Wheel Spring Tension Pulley AQ131 B230 NOS 0L 140hp 4 cylinder cylItem 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