Name: 530 0049 30 Timing Belt Kit with Water Pump
Brand: FOCUSON ENGINE
Availability: InStock

Vehicle Fitment

Make	Model	Type	Engine Code	Capacity	Fuel Type	Year	Power

OPEL	ASTRA F (T92)	1.8 i 16V (F19, M19)	C 18 XE	1799 CCM / 1.8 L	Petrol	1993-06-01 1994-10-01	92 KW / 125 PS
OPEL	ASTRA F Estate (T92)	1.8 i 16V (F35, M35)	C 18 XE	1799 CCM / 1.8 L	Petrol	1993-06-01 1998-01-01	92 KW / 125 PS
OPEL	OMEGA B (V94)	2.0 16V (F69, M69, P69)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-03-01 1999-09-01	100 KW / 136 PS
OPEL	OMEGA B Estate (V94)	2.0 16V (F35, M35, P35)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-03-01 1999-09-01	100 KW / 136 PS
OPEL	ASTRA F (T92)	1.8 i 16V (F19, M19)	C 18 XEL,X 18 XE,C 18 SEL	1799 CCM / 1.8 L	Petrol	1994-11-01 1998-09-01	85 KW / 116 PS
OPEL	ASTRA F Hatchback (T92)	1.8 i 16V (F08, M08, F68, M68)	C 18 XEL,X 18 XE	1799 CCM / 1.8 L	Petrol	1994-09-01 1998-01-01	85 KW / 116 PS
OPEL	VECTRA A (J89)	2.0 i 16V (F19, M19)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1992-08-01 1995-08-01	100 KW / 136 PS
OPEL	VECTRA A Hatchback (J89)	2.0 i 16V (F68, M68)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1992-08-01 1995-08-01	100 KW / 136 PS
OPEL	VECTRA A (J89)	2.0 i 16V 4x4 (F19, M19)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-06-01 1995-11-01	100 KW / 136 PS
OPEL	ASTRA F Convertible (T92)	1.8 i 16V	C 18 XEL,X 18 XE	1799 CCM / 1.8 L	Petrol	1994-11-01 2001-03-01	85 KW / 116 PS
OPEL	ASTRA F Estate (T92)	1.8 i 16V (F35, M35)	C 18 XEL,X 18 XE	1799 CCM / 1.8 L	Petrol	1994-07-01 1998-01-01	85 KW / 116 PS
OPEL	CALIBRA A (C89)	2.0 i 16V 4x4 (M07)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-02-01 1997-07-01	100 KW / 136 PS
OPEL	CALIBRA A (C89)	2.0 i 16V (M07)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-02-01 1997-07-01	100 KW / 136 PS
OPEL	ASTRA F (T92)	2.0 i 16V (F19, M19)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1995-02-01 1998-09-01	100 KW / 136 PS
OPEL	ASTRA F Estate (T92)	2.0 i 16V (F35, M35)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1995-02-01 1998-01-01	100 KW / 136 PS
OPEL	ASTRA F Hatchback (T92)	2.0 i 16V (F08, M08, F68, M68)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1995-02-01 1998-01-01	100 KW / 136 PS
OPEL	ASTRA F Hatchback (T92)	1.8 i 16V (F08, M08, F68, M68)	C 18 XE	1799 CCM / 1.8 L	Petrol	1993-06-01 1994-08-01	92 KW / 125 PS
OPEL	VECTRA B Hatchback (J96)	2.0 i 16V (F68)	X 20 XEV,C 20 SEL	1998 CCM / 2.0 L	Petrol	1995-09-01 2000-06-01	100 KW / 136 PS
OPEL	VECTRA B (J96)	2.0 i 16V (F19)	X 20 XEV,C 20 SEL	1998 CCM / 2.0 L	Petrol	1995-09-01 2000-06-01	100 KW / 136 PS
VAUXHALL	ASTRA Mk III (F) Hatchback (T92)	1.8 i 16V	C 18 XE	1796 CCM / 1.8 L	Petrol	1994-09-01 1998-02-01	92 KW / 125 PS
VAUXHALL	ASTRA Mk III (F) Estate (T92)	1.8 i 16V	C 18 XE	1796 CCM / 1.8 L	Petrol	1994-09-01 1998-02-01	92 KW / 125 PS
VAUXHALL	ASTRA Mk III (F) Hatchback (T92)	1.8 i 16V	C 18 XEL	1796 CCM / 1.8 L	Petrol	1994-09-01 1998-02-01	85 KW / 115 PS
VAUXHALL	ASTRA Mk III (F) Estate (T92)	1.8 i 16V	C 18 XEL	1796 CCM / 1.8 L	Petrol	1994-09-01 1998-02-01	85 KW / 115 PS
VAUXHALL	CAVALIER Mk III Saloon (J89)	2.0 SRi 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1992-09-01 1995-08-01	100 KW / 136 PS
OPEL	VECTRA B Estate (J96)	2.0 i 16V (F35)	X 20 XEV,C 20 SEL	1998 CCM / 2.0 L	Petrol	1996-11-01 2000-06-01	100 KW / 136 PS
VAUXHALL	CALIBRA (C89)	2.0 i 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1990-06-01 1997-07-01	100 KW / 136 PS
VAUXHALL	CALIBRA (C89)	2.0 i 16V 4x4	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-02-01 1997-07-01	100 KW / 136 PS
VAUXHALL	OMEGA (B) Saloon (V94)	2.0 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-03-01 2001-07-01	100 KW / 136 PS
VAUXHALL	OMEGA (B) Estate (V94)	2.0 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-03-01 2001-07-01	100 KW / 136 PS
CHEVROLET	LACETTI Estate (J200)	1.8	LDA	1796 CCM / 1.8 L	Petrol	2005-08-01 2013-03-01	90 KW / 122 PS
VAUXHALL	VECTRA (B) Saloon (J96)	1.8 i 16V (F19)	X 18 XE	1799 CCM / 1.8 L	Petrol	1995-10-01 2000-09-01	85 KW / 116 PS
VAUXHALL	VECTRA (B) Saloon (J96)	2.0 i 16V (F19)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1995-10-01 2001-01-01	100 KW / 136 PS
VAUXHALL	VECTRA (B) Hatchback (J96)	2.0 i 16V (F68)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1995-10-01 2001-01-01	100 KW / 136 PS
VAUXHALL	VECTRA (B) Estate (J96)	2.0 i 16V (F35)	X 20 XEV	1998 CCM / 2.0 L	Petrol	1995-10-01 2001-01-01	100 KW / 136 PS
DAEWOO	NUBIRA (J100)	2.0 16V	X 20 SED	1998 CCM / 2.0 L	Petrol	1997-05-01	98 KW / 133 PS
DAEWOO	NUBIRA Saloon (J100)	2.0 16V	X 20 SED	1998 CCM / 2.0 L	Petrol	1997-05-01	98 KW / 133 PS
DAEWOO	NUBIRA Wagon (J100)	2.0 16V	X 20 SED	1998 CCM / 2.0 L	Petrol	1997-05-01	98 KW / 133 PS
DAEWOO	LEGANZA (KLAV)	2.0 16V	X 20 SED	1998 CCM / 2.0 L	Petrol	1997-06-01 2002-12-01	98 KW / 133 PS
OPEL	VECTRA B Hatchback (J96)	1.8 i 16V (F68)	X 18 XE	1799 CCM / 1.8 L	Petrol	1995-10-01 2000-09-01	85 KW / 116 PS
OPEL	VECTRA B Estate (J96)	1.8 i 16V (F35)	X 18 XE	1799 CCM / 1.8 L	Petrol	1996-11-01 2000-09-01	85 KW / 116 PS
VAUXHALL	ASTRA Mk III (F) Saloon (T92)	1.8 i 16V	C 18 XE	1799 CCM / 1.8 L	Petrol	1993-06-01 1994-10-01	92 KW / 125 PS
VAUXHALL	ASTRA Mk III (F) Saloon (T92)	2.0 i 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1995-02-01 1998-09-01	100 KW / 136 PS
VAUXHALL	ASTRA Mk III (F) Convertible (T92)	1.8 16V	X 18 XE,C 18 XEL	1799 CCM / 1.8 L	Petrol	1994-11-01 2001-03-01	85 KW / 116 PS
OPEL	VECTRA B (J96)	1.8 i 16V (F19)	X 18 XE	1799 CCM / 1.8 L	Petrol	1995-10-01 2000-09-01	85 KW / 116 PS
VAUXHALL	ASTRA Mk III (F) Convertible (T92)	2.0 i 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-01-01 1998-02-01	100 KW / 136 PS
VAUXHALL	ASTRA Mk III (F) Saloon (T92)	1.8 i 16V	C 18 XEL	1796 CCM / 1.8 L	Petrol	1994-01-01 1996-12-01	85 KW / 115 PS
VAUXHALL	ASTRA Mk III (F) Hatchback (T92)	2.0 i 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-01-01 1998-02-01	100 KW / 136 PS
VAUXHALL	ASTRA Mk III (F) Estate (T92)	2.0 i 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1994-01-01 1998-02-01	100 KW / 136 PS
VAUXHALL	CAVALIER Mk III Hatchback (J89)	2.0 i 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1992-09-01 1995-08-01	100 KW / 136 PS
DAEWOO	REZZO (U100)	2.0	T20SED	1998 CCM / 2.0 L	Petrol	2000-09-01	94 KW / 128 PS
DAEWOO	REZZO (U100)	2.0	T20SED	1998 CCM / 2.0 L	Petrol	2001-09-01 2004-12-01	89 KW / 121 PS
DAEWOO	EVANDA (KLAL)	2.0	X 20 SED	1998 CCM / 2.0 L	Petrol	2002-08-01	96 KW / 131 PS
CHEVROLET	LACETTI (J200)	1.8	LDA	1796 CCM / 1.8 L	Petrol	2005-03-01	90 KW / 122 PS
CHEVROLET	NUBIRA Saloon	1.8	LDA	1796 CCM / 1.8 L	Petrol	2005-03-01 2009-12-01	90 KW / 122 PS
CHEVROLET	NUBIRA Estate	1.8	LDA	1796 CCM / 1.8 L	Petrol	2005-03-01 2009-12-01	90 KW / 122 PS
CHEVROLET	REZZO MPV (U100)	2.0	L88	1998 CCM / 2.0 L	Petrol	2005-03-01	89 KW / 121 PS
CHEVROLET	EVANDA	2.0	L88	1998 CCM / 2.0 L	Petrol	2005-03-01 2006-12-01	96 KW / 131 PS
DAEWOO	LEGANZA (KLAV)	2.0 16V	T20SED	1998 CCM / 2.0 L	Petrol	2000-07-01 2004-04-01	93 KW / 126 PS
DAEWOO	NUBIRA Saloon (J100)	2.0 16V	T20SED	1998 CCM / 2.0 L	Petrol	2000-12-01	93 KW / 126 PS
DAEWOO	NUBIRA Wagon (J100)	2.0 16V	T20SED	1998 CCM / 2.0 L	Petrol	2000-12-01	93 KW / 126 PS
CHEVROLET	REZZO MPV (U100)	2.0	L88	1998 CCM / 2.0 L	Petrol	2005-08-01 2009-09-01	90 KW / 122 PS
DAEWOO	NUBIRA (J100)	2.0 CDX	T20SED	1998 CCM / 2.0 L	Petrol	2002-08-01 2003-07-01	93 KW / 126 PS
DAEWOO	NUBIRA Saloon (J100)	2.0	C20SED	1998 CCM / 2.0 L	Petrol	1999-06-01 2003-07-01	81 KW / 110 PS
CHEVROLET	ASTRA Hatchback	2.0	C 20 SEJ	1998 CCM / 2.0 L	Petrol	1999-03-01 2002-07-01	82 KW / 112 PS
CHEVROLET	ASTRA Hatchback	2.0	X 20 XEV	1998 CCM / 2.0 L	Petrol	1999-03-01 2002-07-01	94 KW / 128 PS
CHEVROLET	ASTRA Hatchback	2.0 (08, 48)	L34(122CUL4)	1998 CCM / 2.0 L	Petrol	2002-08-01 2005-07-01	100 KW / 136 PS
CHEVROLET	ASTRA Saloon	2.0 GLS	X 20 XEV	1998 CCM / 2.0 L	Petrol	1999-03-01 2002-07-01	94 KW / 128 PS
CHEVROLET	ASTRA Saloon	2.0 GLS (69)	C 20 SEL,L34(122CUL4)	1998 CCM / 2.0 L	Petrol	2002-08-01 2011-12-01	100 KW / 136 PS
HOLDEN	ASTRA Hatchback (TR)	2.0 GSi	X 20 XEV	1998 CCM / 2.0 L	Petrol	1995-08-01 1998-09-01	100 KW / 136 PS
DAEWOO	LACETTI Saloon	2.0	C20SED	1998 CCM / 2.0 L	Petrol	1999-06-01 2003-07-01	81 KW / 110 PS
DAEWOO	LACETTI Saloon	2.0	X 20 SED	1998 CCM / 2.0 L	Petrol	1999-06-01 2003-07-01	98 KW / 133 PS
DAEWOO	MAGNUS	2.0	X 20 SED	1998 CCM / 2.0 L	Petrol	1999-07-01 2006-01-01	96 KW / 131 PS
CHEVROLET	OPTRA (1J_)	1.8	LDA	1796 CCM / 1.8 L	Petrol	2003-08-01 2008-12-01	90 KW / 122 PS
CHEVROLET	ZAFIRA (F75)	2.0	X 20 XE	1998 CCM / 2.0 L	Petrol	2004-08-01 2012-12-01	89 KW / 121 PS
CHEVROLET	ZAFIRA (F75)	2.0	C 20 SEL,L34(122CUL4)	1998 CCM / 2.0 L	Petrol	2001-04-01 2012-07-01	100 KW / 136 PS
CHEVROLET	EPICA (KL1_)	2.0	L88	1998 CCM / 2.0 L	Petrol	2005-01-01 2006-12-01	98 KW / 133 PS
CHEVROLET	EPICA (KL1_)	2.0	L88	1998 CCM / 2.0 L	Petrol	2005-01-01 2006-12-01	94 KW / 128 PS
CHEVROLET	ASTRA Estate	2.0	X 20 XEV	1998 CCM / 2.0 L	Petrol	1999-10-01 2002-07-01	94 KW / 128 PS
CHEVROLET	ASTRA Estate	2.0	C 20 SEL	1998 CCM / 2.0 L	Petrol	2002-08-01 2005-07-01	100 KW / 136 PS
CHEVROLET	VECTRA	2.0	L34(122CUL4)	1998 CCM / 2.0 L	Petrol	1996-03-01 1998-04-01	100 KW / 136 PS
DAEWOO	PRINCE (J19)	2.0	C20SE	1998 CCM / 2.0 L	Petrol	1991-08-01 1998-08-01	81 KW / 110 PS
DAEWOO	PRINCE (J19)	2.0	X 20 XEV	1998 CCM / 2.0 L	Petrol	1993-08-01 1998-08-01	100 KW / 136 PS
VAUXHALL	ASTRA Mk III (F) Convertible (T92)	1.8	C 18 XE	1799 CCM / 1.8 L	Petrol	1994-09-01 1996-08-01	92 KW / 125 PS
HOLDEN	VECTRA Hatchback (JR)	2.0 i	X 20 XEV,C 20 SEL	1998 CCM / 2.0 L	Petrol	1997-06-01 1998-12-01	100 KW / 136 PS
HOLDEN	VECTRA Saloon (JR)	2.0 i	C 20 SEL	1998 CCM / 2.0 L	Petrol	1997-06-01 1998-12-01	100 KW / 136 PS
HOLDEN	CALIBRA (YE)	2.0 i 16V	X 20 XEV	1998 CCM / 2.0 L	Petrol	1995-07-01 1997-11-01	100 KW / 136 PS
HOLDEN	ASTRA Hatchback (TR)	1.8 i	C 18 XEL	1799 CCM / 1.8 L	Petrol	1996-09-01 1998-09-01	85 KW / 114 PS
HOLDEN	VECTRA Hatchback (JS)	2.0 i	C 20 SEL	1998 CCM / 2.0 L	Petrol	1998-12-01 2000-11-01	100 KW / 136 PS
HOLDEN	VECTRA Saloon (JS)	2.0 i	C 20 SEL	1998 CCM / 2.0 L	Petrol	1998-12-01 2000-11-01	100 KW / 136 PS
CHEVROLET	TRACKER	2.0	L34(121CUL4)	1995 CCM / 2.0 L	Petrol	1998-09-01 2008-10-01	95 KW / 129 PS
CHEVROLET	LACETTI (J200)	1.8	LDA	1796 CCM / 1.8 L	Petrol	2005-03-01 2009-12-01	67 KW / 91 PS
CHEVROLET	LACETTI Saloon (J200)	1.8	LDA	1796 CCM / 1.8 L	Petrol	2005-08-01 2013-03-01	90 KW / 122 PS
VAUXHALL	VECTRA (B) Hatchback (J96)	1.8 i 16V (F68)	X 18 XE	1799 CCM / 1.8 L	Petrol	1995-09-01 2000-09-01	85 KW / 116 PS
VAUXHALL	VECTRA (B) Estate (J96)	1.8 i 16V (F35)	X 18 XE	1799 CCM / 1.8 L	Petrol	1996-09-01 2000-09-01	85 KW / 116 PS
DAEWOO	NUBIRA (J150)	2.0 16V	X 20 SED	1998 CCM / 2.0 L	Petrol	1999-06-01 2002-07-01	98 KW / 133 PS
DAEWOO	NUBIRA Estate (J150)	2.0 16V	X 20 SED	1998 CCM / 2.0 L	Petrol	1999-06-01 2002-07-01	98 KW / 133 PS
DAEWOO	NUBIRA Saloon (J150)	2.0 16V	X 20 SED	1998 CCM / 2.0 L	Petrol	1999-06-01 2002-07-01	98 KW / 133 PS
VAUXHALL	OMEGA (B) Estate (V94)	2.0 Dualfuel	X 20 XEV	1998 CCM / 2.0 L	Petrol/Liquified Petroleum Gas (LPG)	1999-01-01 2001-07-01	100 KW / 136 PS
VAUXHALL	OMEGA (B) Saloon (V94)	2.0 Dualfuel	X 20 XEV	1998 CCM / 2.0 L	Petrol/Liquified Petroleum Gas (LPG)	1998-05-01 2001-07-01	100 KW / 136 PS
VAUXHALL	VECTRA (B) Estate (J96)	2.0 Dualfuel (F35)	X 20 XEV	1998 CCM / 2.0 L	Petrol/Liquified Petroleum Gas (LPG)	1998-10-01 2001-01-01	100 KW / 136 PS
VAUXHALL	VECTRA (B) Saloon (J96)	2.0 Dualfuel (F19)	X 20 XEV	1998 CCM / 2.0 L	Petrol/Liquified Petroleum Gas (LPG)	1998-05-01 2001-01-01	100 KW / 136 PS
VAUXHALL	VECTRA (B) Hatchback (J96)	2.0 Dualfuel (F68)	X 20 XEV	1998 CCM / 2.0 L	Petrol/Liquified Petroleum Gas (LPG)	1998-08-01 2001-01-01	100 KW / 136 PS
CHEVROLET	LACETTI Saloon (J200)	1.8	LDA	1796 CCM / 1.8 L	Petrol	2005-08-01 2009-12-01	66 KW / 90 PS
OPEL	VECTRA B Hatchback (J96)	2.0 i 16V (F68)	C 20 SEL	1998 CCM / 2.0 L	Petrol	2000-07-01 2003-07-01	85 KW / 116 PS
OPEL	VECTRA B Estate (J96)	2.0 i 16V (F35)	C 20 SEL	1998 CCM / 2.0 L	Petrol	2000-07-01 2003-07-01	85 KW / 116 PS
OPEL	VECTRA B Hatchback (J96)	1.8 FlexFuel (F68)	X 18 XE	1799 CCM / 1.8 L	Petrol/Liquified Petroleum Gas (LPG)	1999-01-01 2000-09-01	85 KW / 116 PS

Car models	OPEL ASTRA F (T92); OPEL ASTRA F Estate (T92); OPEL OMEGA B (V94); OPEL OMEGA B Estate (V94); OPEL ASTRA F Hatchback (T92); OPEL VECTRA A (J89); OPEL VECTRA A Hatchback (J89); OPEL ASTRA F Convertible (T92); OPEL CALIBRA A (C89); OPEL VECTRA B Hatchback (J96); OPEL VECTRA B (J96); VAUXHALL ASTRA Mk III (F) Hatchback (T92); VAUXHALL ASTRA Mk III (F) Estate (T92); VAUXHALL CAVALIER Mk III Saloon (J89); OPEL VECTRA B Estate (J96); VAUXHALL CALIBRA (C89); VAUXHALL OMEGA (B) Saloon (V94); VAUXHALL OMEGA (B) Estate (V94); CHEVROLET LACETTI Estate (J200); VAUXHALL VECTRA (B) Saloon (J96); VAUXHALL VECTRA (B) Hatchback (J96); VAUXHALL VECTRA (B) Estate (J96); DAEWOO NUBIRA (J100); DAEWOO NUBIRA Saloon (J100); DAEWOO NUBIRA Wagon (J100); DAEWOO LEGANZA (KLAV); VAUXHALL ASTRA Mk III (F) Saloon (T92); VAUXHALL ASTRA Mk III (F) Convertible (T92); VAUXHALL CAVALIER Mk III Hatchback (J89); DAEWOO REZZO (U100); DAEWOO EVANDA (KLAL); CHEVROLET LACETTI (J200); CHEVROLET NUBIRA Saloon; CHEVROLET NUBIRA Estate; CHEVROLET REZZO MPV (U100); CHEVROLET EVANDA; CHEVROLET ASTRA Hatchback; CHEVROLET ASTRA Saloon; HOLDEN ASTRA Hatchback (TR); DAEWOO LACETTI Saloon; DAEWOO MAGNUS; CHEVROLET OPTRA (1J_); CHEVROLET ZAFIRA (F75); CHEVROLET EPICA (KL1_); CHEVROLET ASTRA Estate; CHEVROLET VECTRA; DAEWOO PRINCE (J19); HOLDEN VECTRA Hatchback (JR); HOLDEN VECTRA Saloon (JR); HOLDEN CALIBRA (YE); HOLDEN VECTRA Hatchback (JS); HOLDEN VECTRA Saloon (JS); CHEVROLET TRACKER; CHEVROLET LACETTI Saloon (J200); DAEWOO NUBIRA (J150); DAEWOO NUBIRA Estate (J150); DAEWOO NUBIRA Saloon (J150)
Engines	C 18 XE; X 20 XEV; C 18 XEL,X 18 XE,C 18 SEL; C 18 XEL,X 18 XE; X 20 XEV,C 20 SEL; C 18 XEL; LDA; X 18 XE; X 20 SED; X 18 XE,C 18 XEL; T20SED; L88; C20SED; C 20 SEJ; L34(122CUL4); C 20 SEL,L34(122CUL4); X 20 XE; C 20 SEL; C20SE; L34(121CUL4)
Engine power (horsepower)	90-136 HP
Power (kilowatts)	66-100 KW
Year of manufacture	1990-2013

530 0049 30

OPEL

VAUXHALL

DAEWOO

CHEVROLET

What is included in a timing belt kit with a water pump?

What are the benefits of using a timing belt kit with a water pump?

How does a timing belt kit with a water pump affect engine performance?

Why is it recommended to replace the water pump with the timing belt?