1.Fits These Craftsman Models: 536.88150 536.885213 536.881501 536.885210 536.88140 536.885214 536.885200 536.881500 536.885211 536.885203 536.884220 536.884670 536.881510 536.881510 536.884351 536.881400 536.885214 536.885213 2.Fits These Murray Models: 1695538 - Murray 525/21 (2009) 1695565 - Brute 525/21 (2008) 620301x4C (2000) 620301x4D (2001) 620301x4NA (2002) 620301x4NB (2003) 620301x54C (2000) 620301x54C (2001) 620301x54D (2001) 620301x54NA (2002) 620301x54NB (2003) 620301x61A (2000) 620301x61B (2001) 620301x61NA (2002) 620301x61NB (2003) 620301x79D (2000) 620301x79E (2001) 620301x85B (2000) 620301x85C (2001) 620301x85NA (2002) 620301x85NB (2003) 620351x4NA (2003) 6210540x116NA (2007) 3. Fits These Murray Models:6210540x117NA (2007) 6210540x83NA - Brute 525/21 (2007) 6210700x116NA - PM40 (2007) 6210700x117NA - PSB210 (2007) 621301x89A (2000) 621301x89B (2001) 621450x49A (2000) 621450x4D (2000) 621450x4E (2001) 621450x4NA (2002) 621450x4NB (2003) 621450x4NC (2004) 621450x79D (2000)621450x79E (2001) 621451x0NA (2002) 621451x0NA (2003) 621451x31B (2000) 621451x31C (2001) 621451x83NA (2005) 621451x85B (2000) 621451x85C (2001) 621451x85NA (2002) 621451x85NB (2003) 621453x31A (2001) 621453x31NA (2002) 621453x31NB (2003) 621453x31NC (2004) 621500x89A (2000) 621500x89B (2001) 621501x31NA (2005) 621501x31NB (2006) 621501x4NA (2004) 621520x43NA (2003) 621520x43NB (2004) 4.ALSO FITS: 6220530x110N - 18-2811-88 Castelgarden SN 50