Mercury - Propeller Shaft - Fits 4.80 Torpedo Lower Units Only - See Below for Applicable Engines - 8M0142883 175 HP 3.4L V6 - Serial number range 2B529482 and above 175 HP 3.4L V6 Pro XS - Serial number range 2B529482 and above 200 HP 3.4L V6 - Serial number range 2B529482 and above 200 HP 3.4L V6 SeaPro - Serial number range 2B529482 and above 200 HP 4.6L V8 Pro XS - Serial number range 2B529482 and above 225 HP 3.4L V6 - Serial number range 2B529482 and above 225 HP 4.6L V8 Pro XS - Serial number range 2B529482 and above 250 HP 4.6L V8 Pro XS - Serial number range 2B529482 and above 300 HP 4.6L V8 Pro XS - Serial number range 2B529482 and above