Hey, well my 91 Yamaha 130 TLRP lower unit cracked again for good. Any 84-91 115/130hp 2 stroke 20" will fit. Can't afford to buy the 4 stroke that is needed, can't really afford to buy the new $1500 lower unit....Works fine but housing cracked.....not the first one with the same issue. Will consider buying someone's dead complete motor with good lower unit/and part it out myself.....Blackmouth's open(area 7) and I'm dead in the water...Sincerely Tom