KOYO by JTEKT Bearing 6303
KOYO by JTEKT Bearing 6303
Part no. 6303C3
The KOYO by JTEKT Bearing 6303 from KOYO is listed to fit 91 models from 21 makes (Rieju, Aprilia, CPI and others), including Rieju MRT 50 (MRT50) 2009-2024, Rieju MRX 50 (MRX50) 2000-2009 and Rieju MX 50 (MX50) 2000-2005. It is part of our engine bearing range.
- Part number: 6303C3
- Fits Rieju: MRT 50 (MRT50) 2009-2024, MRX 50 (MRX50) 2000-2009, MX 50 (MX50) 2000-2005, NKD 50 (NKD50) 2003-2010, RR 50 (RR50) 1996-2005, RRX 50 (RRX50) 2008, RRX SPIKE 50 2008-2009, RS1 50 1995-2005 and 6 more
- Fits Aprilia: AF1 50 1990-1995, CLASSIC 50 (CLASSIC50) 1992-2005, MX 50 (MX50) 1995-2010, RED ROSE 50 1987-1999, RS 50 (RS50) 1993-2013, RS4 50 2011-2016, 2019, RX 50 (RX50) 1989-2019, TUONO 50 (TUONO50) 2003-2014
- Fits CPI: CROSS 50 (CROSS50) 2006-2012, SM SUPERMOTARD 50 2013, SUPERCROSS 50 (SUPERCROSS50) 2003-2005, SUPERMOTARD 50 (SUPERMOTARD50) 2005-2012, SUPERMOTO 50 (SUPERMOTO50) 2003-2005, 2007-2009, SX 50 ENDURO 2013, SX 50 SUPERCROSS 2007-2008, SX 50 SUPERMOTARD 2013
- Fits Peugeot: NK7 50 2T 2009-2014, XP6 50 ENDURO 1997-2011, XP6 50 SM 1997-2011, XP7 50 2T 2012-2014, XP7 50 2T SM 2012-2014, XPS 50 2T 2003-2011, XR6 50 2T 2000-2007, XR7 50 2T 2008-2013
- Category: Engine Parts › Engine Bottom End › Engine Bearing
Specifications
| Brand | KOYO |
|---|---|
| Manufacturer Item No. | 6303C3 |
| Width | 14 mm |
| Inner Diameter | 17 mm |
| Outer Diameter | 47 mm |
Fits these bikes
This KOYO part is listed as fitting 91 models. Check your model and year below.
| Make | Model | Years |
|---|---|---|
| Adly | 50 RS SUPERSONIC | 2006-2008 |
| Aprilia | AF1 50 | 1990-1995 |
| Aprilia | CLASSIC 50 (CLASSIC50) | 1992-2005 |
| Aprilia | MX 50 (MX50) | 1995-2010 |
| Aprilia | RED ROSE 50 | 1987-1999 |
| Aprilia | RS 50 (RS50) | 1993-2013 |
| Aprilia | RS4 50 | 2011-2016, 2019 |
| Aprilia | RX 50 (RX50) | 1989-2019 |
| Aprilia | TUONO 50 (TUONO50) | 2003-2014 |
| Beta | ART 50 ENDURO | 2003-2010 |
| Beta | ART 50 MOTARD | 2005-2010 |
| Beta | RR 50 ENDURO | 2016-2024 |
| Beta | RR 50 MOTARD | 2008, 2016-2024 |
| Beta | RRT 50 ENDURO | 2000-2015 |
| Beta | RRT 50 MOTARD | 2000-2012 |
| CPI | CROSS 50 (CROSS50) | 2006-2012 |
| CPI | SM SUPERMOTARD 50 | 2013 |
| CPI | SUPERCROSS 50 (SUPERCROSS50) | 2003-2005 |
| CPI | SUPERMOTARD 50 (SUPERMOTARD50) | 2005-2012 |
| CPI | SUPERMOTO 50 (SUPERMOTO50) | 2003-2005, 2007-2009 |
| CPI | SX 50 ENDURO | 2013 |
| CPI | SX 50 SUPERCROSS | 2007-2008 |
| CPI | SX 50 SUPERMOTARD | 2013 |
| Fantic | 50 E | 2020 |
| Fantic | 50 M | 2020 |
| Fantic | CABALLERO 50 (CABALLERO50) | 1997-1998, 2006-2024 |
| Fantic | ENDURO 50 (ENDURO50) | 2015-2019 |
| Fantic | MOTARD 50 (MOTARD50) | 2015-2019 |
| Fantic | XE 50 (XE50) | 2021-2025 |
| Gilera | GSM 50 (GSM50) | 1999-2003 |
| HM | CRE 50 (CRE50) | 1996-2006 |
| HM | CRE 50 BAJA | 1997-2012, 2015 |
| HM | CRE 50 DERAPAGE | 2006-2017 |
| HM | CRE 50 SIX (CRE50SIX) | 1996-2017 |
| HM | CRE 50 SIX BAJA | 2001-2006 |
| HM | CRE 50 SIX DERAPAGE | 2001-2017 |
| HRD | ENDURO 50 (ENDURO50) | 2006-2011 |
| HRD | GSE 50 ENDURO | 1998-2002 |
| HRD | SUPERMOTARD 50 (SUPERMOTARD50) | 2006-2011 |
| Honda | ATC 250 (ATC250) | 1985-1988 |
| Honda | TRX 250 FOURTRAX | 1986-1987 |
| Keeway | TX 50 SM (TX50SM) | 2009-2018 |
| MBK | X-LIMIT | 1997-2011 |
| MBK | X-POWER | 2000-2012 |
| MH | RYZ | 2006-2010 |
| Malaguti | CNK 50 DRAKON | 2005-2008 |
| Malaguti | DRAKON 50 (DRAKON50) | 2005-2011 |
| Malaguti | XSM 50 (XSM50) | 2003-2010 |
| Malaguti | XTM 50 (XTM50) | 2003-2010 |
| Minarelli | AM6 | 1996-2024 |
| Motor Hispania | FURIA 50 (FURIA50) | 1997-2016 |
| Motor Hispania | RX 50 (RX50) | 2005-2010 |
| Motor Hispania | RYZ 50 (RYZ50) | 2005-2015 |
| Motor Hispania | URBAN BIKE | 2006-2016 |
| Peugeot | NK7 50 2T | 2009-2014 |
| Peugeot | XP6 50 ENDURO | 1997-2011 |
| Peugeot | XP6 50 SM | 1997-2011 |
| Peugeot | XP7 50 2T | 2012-2014 |
| Peugeot | XP7 50 2T SM | 2012-2014 |
| Peugeot | XPS 50 2T | 2003-2011 |
| Peugeot | XR6 50 2T | 2000-2007 |
| Peugeot | XR7 50 2T | 2008-2013 |
| Rieju | MRT 50 (MRT50) | 2009-2024 |
| Rieju | MRX 50 (MRX50) | 2000-2009 |
| Rieju | MX 50 (MX50) | 2000-2005 |
| Rieju | NKD 50 (NKD50) | 2003-2010 |
| Rieju | RR 50 (RR50) | 1996-2005 |
| Rieju | RRX 50 (RRX50) | 2008 |
| Rieju | RRX SPIKE 50 | 2008-2009 |
| Rieju | RS1 50 | 1995-2005 |
| Rieju | RS2 50 | 2003-2010 |
| Rieju | RS3 | 2013 |
| Rieju | RS3 50 | 2010-2020 |
| Rieju | SMX 50 (SMX50) | 1999-2009 |
| Rieju | SPIKE 50 (SPIKE50) | 1998-2007 |
| Rieju | TANGO 50 (TANGO50) | 2008-2012 |
| Sherco | 50 BASE | 2010-2011 |
| Sherco | 50 SE | 2003-2026 |
| Sherco | 50 SM | 2003-2026 |
| Simson | S50 | 1975-1980 |
| Simson | S51 | 1980-1989 |
| Simson | S51/1 | 1989-1990 |
| Simson | S53 | 1990-1996 |
| Simson | SR50 | 1986-1990, 1994-1995 |
| Simson | SR50/1 | 1989-1995 |
| Suzuki | RMX 50 (RMX50) | 1997-2001 |
| Suzuki | SMX 50 (SMX50) | 1997-2001 |
| Yamaha | DT 50 LC/MX/R | 1996-2000 |
| Yamaha | DT 50 R/X | 1997-2011 |
| Yamaha | FS1 | 1987-1989 |
| Yamaha | TZR 50 (TZR50) | 1996-2012 |
Product details
KOYO deep groove ball bearings are the most common style of rolling bearing, largely thanks to the wide spread of sizes they come in. They support radial loads and can also take a degree of axial load in both directions at the same time.
Questions about this part
Will the KOYO by JTEKT Bearing 6303 fit my bike?
It is listed for 91 models, including Adly 50 RS SUPERSONIC (2006-2008), Aprilia AF1 50 (1990-1995), Aprilia CLASSIC 50 (1992-2005), Aprilia MX 50 (1995-2010). The full list is in the "Fits these bikes" table on this page, and the fit check next to the price tells you straight away for your saved bike.
What is the part number?
The manufacturer part number is 6303C3. Our stock code is 800766.
How much is delivery?
Order before 3pm for same day dispatch. UK Next Day delivery is £7.99, and free on orders of £100 or more. Pre 12:00 (£9.99) and Pre 10:00 (£14.99) upgrades are charged at any order value.
Can I return it?
Yes. You can return it within 30 days of delivery for a refund. You pay the return postage unless the item is faulty, damaged or wrong, in which case we cover it. See our Returns page for how. Returns