Kód: 4001633
Značka: SASIC
SASIC 4001633 Ložisko pružné vzpěry
montovaná strana : Přední náprava - oboustranný, pro OE číslo : 8200630478
Doručení na adresu nebo na výdejní místa.
Možnost osobního odběr na prodejně po objednání.
Platba na dobírku, převodem nebo kartou.
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 1.9 TDI (2007 - 2009) 1896 ccm, 63 kw, 85 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 1.9 TDI (2007 - 2009) 1896 ccm, 77 kw, 105 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 1.9 TDI (2007 - 2009) 1896 ccm, 75 kw, 102 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TDI (2011 - 2015) 1968 ccm, 84 kw, 114 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TDI (2010 - 2015) 1968 ccm, 100 kw, 136 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TDI (2009 - 2015) 1968 ccm, 62 kw, 84 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TDI (2009 - 2015) 1968 ccm, 75 kw, 102 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TDI (2009 - 2015) 1968 ccm, 103 kw, 140 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TDI (2009 - 2015) 1968 ccm, 132 kw, 180 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TDI 4motion (2010 - 2015) 1968 ccm, 100 kw, 136 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TDI 4motion (2009 - 2015) 1968 ccm, 103 kw, 140 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TDI 4motion (2010 - 2015) 1968 ccm, 132 kw, 180 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TSI (2011 - 2015) 1984 ccm, 150 kw, 204 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TSI (2012 - 2015) 1984 ccm, 110 kw, 150 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.0 TSI 4motion (2011 - 2015) 1984 ccm, 150 kw, 204 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.5 TDI (2007 - 2009) 2461 ccm, 96 kw, 130 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.5 TDI (2007 - 2009) 2461 ccm, 128 kw, 174 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.5 TDi (2007 - 2009) 2461 ccm, 120 kw, 163 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.5 TDI 4motion (2007 - 2009) 2461 ccm, 96 kw, 130 hp
CALIFORNIA T5 Camper (7EC, 7EF, 7EG, 7HF) 2.5 TDI 4motion (2007 - 2009) 2461 ccm, 128 kw, 174 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 1.9 TDI (2003 - 2009) 1896 ccm, 63 kw, 85 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 1.9 TDI (2003 - 2009) 1896 ccm, 77 kw, 105 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 1.9 TDI (2006 - 2009) 1896 ccm, 75 kw, 102 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 1.9 TDI (2006 - 2009) 1896 ccm, 62 kw, 84 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 (2003 - 2015) 1984 ccm, 85 kw, 115 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 BiFuel (2011 - 2015) 1984 ccm, 85 kw, 115 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 BiTDI (2009 - 2015) 1968 ccm, 132 kw, 180 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 BiTDI 4motion (2009 - 2015) 1968 ccm, 132 kw, 180 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TDI (2011 - 2015) 1968 ccm, 84 kw, 114 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TDI (2010 - 2015) 1968 ccm, 100 kw, 136 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TDI (2009 - 2015) 1968 ccm, 62 kw, 84 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TDI (2009 - 2015) 1968 ccm, 75 kw, 102 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TDI (2009 - 2015) 1968 ccm, 103 kw, 140 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TDI 4motion (2010 - 2015) 1968 ccm, 100 kw, 136 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TDI 4motion (2009 - 2015) 1968 ccm, 103 kw, 140 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TSI (2011 - 2015) 1984 ccm, 150 kw, 204 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TSI (2012 - 2015) 1984 ccm, 110 kw, 150 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.0 TSI 4motion (2011 - 2015) 1984 ccm, 150 kw, 204 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.5 TDI (2003 - 2009) 2461 ccm, 96 kw, 130 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.5 TDI (2003 - 2009) 2461 ccm, 128 kw, 174 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.5 TDI 4motion (2004 - 2009) 2461 ccm, 96 kw, 130 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 2.5 TDI 4motion (2004 - 2009) 2461 ccm, 128 kw, 174 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 3.2 4motion (2003 - 2009) 3189 ccm, 173 kw, 235 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 3.2 V6 (2003 - 2005) 3189 ccm, 170 kw, 231 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 3.2 V6 (2004 - 2009) 3189 ccm, 173 kw, 235 hp
EUROVAN V Krabice (7HA, 7HH, 7EA, 7EH) 3.2 V6 4motion (2003 - 2005) 3189 ccm, 170 kw, 231 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 1.9 TDI (2003 - 2009) 1896 ccm, 63 kw, 85 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 1.9 TDI (2003 - 2009) 1896 ccm, 77 kw, 105 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 1.9 TDI (2006 - 2009) 1896 ccm, 75 kw, 102 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 1.9 TDI (2006 - 2009) 1896 ccm, 62 kw, 84 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 (2003 - 2013) 1984 ccm, 85 kw, 115 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 BiTDI (2009 - 2015) 1968 ccm, 132 kw, 180 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 BiTDI 4motion (2009 - 2015) 1968 ccm, 132 kw, 180 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 CNG (2003 - 2011) 1984 ccm, 85 kw, 115 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 TDI (2011 - 2015) 1968 ccm, 84 kw, 114 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 TDI (2010 - 2015) 1968 ccm, 100 kw, 136 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 TDI (2009 - 2015) 1968 ccm, 62 kw, 84 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 TDI (2009 - 2015) 1968 ccm, 75 kw, 102 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 TDI (2009 - 2015) 1968 ccm, 103 kw, 140 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 TDI 4motion (2010 - 2015) 1968 ccm, 100 kw, 136 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 TDI 4motion (2009 - 2015) 1968 ccm, 103 kw, 140 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.0 TSI (2012 - 2015) 1984 ccm, 110 kw, 150 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.5 TDI (2003 - 2009) 2461 ccm, 96 kw, 130 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.5 TDI (2003 - 2009) 2461 ccm, 128 kw, 174 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.5 TDI 4motion (2004 - 2009) 2461 ccm, 96 kw, 130 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 2.5 TDI 4motion (2004 - 2009) 2461 ccm, 128 kw, 174 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 3.2 4motion (2003 - 2009) 3189 ccm, 170 kw, 231 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 3.2 V6 (2004 - 2009) 3189 ccm, 170 kw, 231 hp
EUROVAN V valník/podvozek (7JD, 7JE, 7JL, 7JY, 7JZ, 7FD, 7FE 3.2 V6 (2003 - 2006) 3189 ccm, 173 kw, 235 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 1.9 TDI (2003 - 2009) 1896 ccm, 77 kw, 105 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 1.9 TDI (2006 - 2009) 1896 ccm, 75 kw, 102 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 1.9 TDI (2003 - 2009) 1896 ccm, 63 kw, 85 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 1.9 TDI (2006 - 2009) 1896 ccm, 62 kw, 84 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 (2003 - 2015) 1984 ccm, 85 kw, 115 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 BiTDI (2009 - 2015) 1968 ccm, 132 kw, 180 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 BiTDI 4motion (2009 - 2015) 1968 ccm, 132 kw, 180 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TDI (2010 - 2015) 1968 ccm, 100 kw, 136 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TDI (2011 - 2015) 1968 ccm, 84 kw, 114 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TDI (2009 - 2015) 1968 ccm, 62 kw, 84 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TDI (2009 - 2015) 1968 ccm, 75 kw, 102 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TDI (2009 - 2015) 1968 ccm, 103 kw, 140 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TDI 4motion (2010 - 2015) 1968 ccm, 100 kw, 136 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TDI 4motion (2009 - 2015) 1968 ccm, 103 kw, 140 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TSI (2011 - 2015) 1984 ccm, 150 kw, 204 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TSI (2012 - 2015) 1984 ccm, 110 kw, 150 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.0 TSI 4motion (2011 - 2015) 1984 ccm, 150 kw, 204 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.5 TDI (2003 - 2009) 2461 ccm, 96 kw, 130 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.5 TDI (2003 - 2009) 2461 ccm, 128 kw, 174 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.5 TDI (2003 - 2009) 2461 ccm, 120 kw, 163 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.5 TDI 4motion (2004 - 2009) 2461 ccm, 96 kw, 130 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 2.5 TDI 4motion (2004 - 2009) 2461 ccm, 128 kw, 174 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 3.2 V6 (2004 - 2004) 3189 ccm, 170 kw, 231 hp
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 3.2 V6 (2004 - 2009) 3189 ccm, 173 kw, 235 hp [TECDOC-číslo motoru : BKK]
MULTIVAN Mk V (7HM, 7HN, 7HF, 7EF, 7EM, 7EN) 3.2 V6 4motion (2004 - 2009) 3189 ccm, 173 kw, 235 hp [TECDOC-číslo motoru : BKK]
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 1.9 TDI (2003 - 2009) 1896 ccm, 63 kw, 85 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 1.9 TDI (2003 - 2009) 1896 ccm, 77 kw, 105 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 1.9 TDI (2006 - 2009) 1896 ccm, 75 kw, 102 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 1.9 TDI (2006 - 2009) 1896 ccm, 62 kw, 84 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 (2003 - 2015) 1984 ccm, 85 kw, 115 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 BiTDI (2009 - 2015) 1968 ccm, 132 kw, 180 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 BiTDI 4motion (2009 - 2015) 1968 ccm, 132 kw, 180 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 CNG (2006 - 2015) 1984 ccm, 85 kw, 115 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TDI (2010 - 2015) 1968 ccm, 100 kw, 136 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TDI (2011 - 2015) 1968 ccm, 84 kw, 114 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TDI (2009 - 2015) 1968 ccm, 62 kw, 84 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TDI (2009 - 2015) 1968 ccm, 75 kw, 102 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TDI (2009 - 2015) 1968 ccm, 103 kw, 140 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TDI (2011 - 2015) 1968 ccm, 85 kw, 116 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TDI 4motion (2010 - 2015) 1968 ccm, 100 kw, 136 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TDI 4motion (2009 - 2015) 1968 ccm, 103 kw, 140 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TSI (2011 - 2015) 1984 ccm, 150 kw, 204 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TSI (2012 - 2015) 1984 ccm, 110 kw, 150 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.0 TSI 4motion (2011 - 2015) 1984 ccm, 150 kw, 204 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.5 TDI (2003 - 2009) 2461 ccm, 96 kw, 130 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.5 TDI (2003 - 2009) 2461 ccm, 128 kw, 174 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.5 TDi (2003 - 2009) 2461 ccm, 120 kw, 163 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.5 TDI 4motion (2004 - 2009) 2461 ccm, 96 kw, 130 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 2.5 TDI 4motion (2004 - 2009) 2461 ccm, 128 kw, 174 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 3.2 V6 (2004 - 2004) 3189 ccm, 170 kw, 231 hp
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 3.2 V6 (2004 - 2009) 3189 ccm, 173 kw, 235 hp [TECDOC-číslo motoru : BKK]
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 3.2 V6 4motion (2003 - 2009) 3189 ccm, 173 kw, 235 hp [TECDOC-číslo motoru : BKK]
TRANSPORTER V autobus (7HB, 7HJ, 7EB, 7EJ, 7EF, 7EG, 7HF, 7EC) 3.2 V6 4motion (2003 - 2009) 3189 ccm, 170 kw, 231 hp
Kód: 4001633
Značka: SASIC
montovaná strana : Přední náprava - oboustranný, pro OE číslo : 8200630478
Kód: 420 724
Značka: HART
montovaná strana : Přední náprava - oboustranný, tloušťka/síla( v mm) : 130, Vnější průměr [mm] ...
Kód: 1615235
Značka: SASIC
montovaná strana : zadní náprava - oboustranné, pro OE číslo : Part/oe 516123, Typ uložení : ...
Kód: 73-24048
Značka: DYS
Hmotnost [kg] : 0,254043, montovaná strana : Přední náprava - oboustranný