Name: Crankshaft Pulse Sensor RIDEX 833C0258 OE Ref FN12 21 551
Brand: RIDEX
SKU: 833C0258
Price: 40 GBP
Availability: InStock

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Crankshaft Pulse Sensor RIDEX 833C0258 OE Ref FN12 21 551 RIDEX

Key Specification:

Connector Shape: rectangular
EAN: 4059191822225
Fitting Depth [mm]: 29
Number of pins: 3
OEM Reference number: FN1121551

See Full Specification

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£ 40

£ 33.33 excl. VAT

In Stock

SKU:	RIDEX 833C0258
Brand	RIDEX

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Specification
Description
OEM Numbers
Compatibilities
Reviews

Connector Shape

rectangular

EAN

4059191822225

Fitting Depth [mm]

Number of pins

OEM Reference number

FN1121551

PURPOSE GROUP

Crankshaft

Sensor Type

Hall Sensor

Supplementary Info

without cable

Weight [kg]

0.042

Crankshaft Pulse Sensor OE Ref FN12 21 551 – RIDEX – OEM FN1121551

This Crankshaft Pulse Sensor OE Ref FN12 21 551 is supplied by RIDEX as a replacement for OEM reference FN1121551. It is intended for use in selected MAZDA vehicles and designed to meet original equipment fit and functional requirements.

The part is identified by manufacturer reference 833C0258 and EAN 4059191822225, allowing accurate identification and compatibility verification prior to installation. It is suitable for replacing worn, damaged, or non-functioning components where dependable operation is required.

without cable

Vehicle Compatibility

Compatible with selected MAZDA models. Detailed compatibility information is available in the Compatibility section of this page.

To confirm correct fitment, please verify the OEM reference number or use the vehicle registration lookup tool before ordering.

If this part is not suitable for your vehicle, browse alternative options in our Ignition & Preheating category.

Reference number(s) comparable with the original spare part number

MAZDA FN11 21 551 MAZDA FN12 21 551 MAZDA FN12 21 551A MITSUBISHI G4T08671

OE reference number(s) comparable with the original spare part number

MAZDA

MAZDA 2 (DE_, DH_) From 07/2007 to 06/2015

1.4 MZR-CD 4WD 01/2008-06/2015, 50 kw, 1399 ccm, 68 PS, Hatchback, Diesel , ENG: Y404

1.6 MZ-CD 4WD 10/2008-06/2015, 66 kw, 1560 ccm, 90 PS, Hatchback, Diesel , ENG: Y406, Y646

1.5 MZR (DE5FS) 4WD 06/2011-06/2015, 75 kw, 1498 ccm, 102 PS, Hatchback, Petrol , ENG: ZY05, ZY66, ZY-VE

1.3 (DE3FS) 4WD 10/2007-06/2015, 63 kw, 1349 ccm, 86 PS, Hatchback, Petrol , ENG: ZJ46, ZJ-VE

1.3 (DE3FS) 4WD 10/2007-06/2015, 55 kw, 1349 ccm, 75 PS, Hatchback, Petrol , ENG: ZJ46, ZJ-VE

1.3 BiFuel 4WD 05/2011-11/2014, 62 kw, 1349 ccm, 84 PS, Hatchback, Petrol , ENG: ZJ-46

1.3 MZR (DE3FS) 4WD 01/2010-06/2015, 62 kw, 1349 ccm, 84 PS, Hatchback, Petrol , ENG: ZJ46, ZJ-VE

1.6 MZ-CD 4WD 06/2011-06/2015, 70 kw, 1560 ccm, 95 PS, Hatchback, Diesel , ENG: Y661, Y655

1.5 (DE5FS) 4WD 07/2007-06/2015, 76 kw, 1498 ccm, 103 PS, Hatchback, Petrol , ENG: ZY84, ZY66, ZY-VE

1.3 BiFuel 4WD 05/2011-11/2014, 55 kw, 1349 ccm, 75 PS, Hatchback, Petrol , ENG: ZJ-46

MAZDA 3 (BK) From 10/2003 to 12/2009

1.6 (BK14) 4WD 10/2003-06/2009, 77 kw, 1598 ccm, 105 PS, Hatchback, Petrol , ENG: Z627, Z601

2.3 MPS Turbo (BK14) 4WD 12/2006-06/2009, 191 kw, 2261 ccm, 260 PS, Hatchback, Petrol , ENG: L3M6, L3-VDT

1.6 DI Turbo 4WD 06/2004-06/2009, 80 kw, 1560 ccm, 109 PS, Hatchback, Diesel , ENG: Y601, Y603, Y605, Y642

2.0 MZR-CD (BK14) 4WD 07/2006-06/2009, 105 kw, 1998 ccm, 143 PS, Hatchback, Diesel , ENG: RF8G, RF7J

1.6 MZ-CD 4WD 06/2006-12/2009, 66 kw, 1560 ccm, 90 PS, Hatchback, Diesel , ENG: Y406

2.3 MZR (BK3P) 4WD 10/2003-03/2009, 115 kw, 2261 ccm, 156 PS, Hatchback, Petrol , ENG: L3-VE

2.0 (BKEP) 4WD 10/2003-12/2009, 110 kw, 1999 ccm, 150 PS, Hatchback, Petrol , ENG: LF-VE, LF-DE, LF50, LF72, LFN7, LFN8

1.3 (BK14) 4WD 10/2003-06/2009, 62 kw, 1349 ccm, 84 PS, Hatchback, Petrol , ENG: ZJ07, ZJ30, ZJ-VE, ZJ32

2.3 DiSi Turbo MPS (BK3P) 4WD 06/2006-06/2009, 184 kw, 2261 ccm, 250 PS, Hatchback, Petrol , ENG: L3YH

MAZDA 3 (BL) From 12/2008 to 09/2014

2.3 MPS Turbo (BL14) 4WD 12/2008-09/2014, 191 kw, 2261 ccm, 260 PS, Hatchback, Petrol , ENG: L3-VDT, L3Y7

2.0 MZR (BLEFW) 4WD 04/2009-09/2014, 108 kw, 1999 ccm, 147 PS, Hatchback, Petrol , ENG: LF5H, LF-VE, LF5W

1.6 MZR CD (BL14) 4WD 09/2010-05/2013, 85 kw, 1560 ccm, 116 PS, Hatchback, Diesel , ENG: Y650, Y655

2.2 MZR CD (BL10) 4WD 01/2009-05/2013, 136 kw, 2184 ccm, 185 PS, Hatchback, Diesel , ENG: R2AA

1.6 MZ-CD (BL14) 4WD 12/2008-05/2013, 80 kw, 1560 ccm, 109 PS, Hatchback, Diesel , ENG: Y642

2.0 DISI (BLEFW) 4WD 05/2009-02/2012, 110 kw, 1998 ccm, 150 PS, Hatchback, Petrol , ENG: LF-VDS

2.0 MZR DISI (BLEFW) 4WD 12/2008-05/2013, 111 kw, 1999 ccm, 151 PS, Hatchback, Petrol , ENG: LFZ2, LF-VD

2.5 (BL10) 4WD 03/2009-09/2014, 122 kw, 2488 ccm, 166 PS, Hatchback, Petrol , ENG: L5-VE

2.2 MZR CD (BL10) 4WD 01/2009-10/2013, 110 kw, 2184 ccm, 150 PS, Hatchback, Diesel , ENG: R2AA

2.0 MZR (BLEFW) 4WD 01/2009-09/2014, 110 kw, 1999 ccm, 150 PS, Hatchback, Petrol , ENG: LF5H, LF-VE, LF5W

1.6 MZR (BL14) 4WD 12/2008-09/2014, 77 kw, 1598 ccm, 105 PS, Hatchback, Petrol , ENG: Z668, Z682, Z683

1.6 MZR 4WD 01/2010-12/2013, 79 kw, 1598 ccm, 107 PS, Hatchback, Petrol , ENG: Z6

MAZDA 3 Saloon (BK) From 09/1999 to 12/2009

1.6 DI Turbo (BK12Y) 4WD 06/2004-06/2009, 80 kw, 1560 ccm, 109 PS, Saloon, Diesel , ENG: Y601, Y603, Y605, Y642

2.0 4WD 10/2003-06/2006, 104 kw, 1999 ccm, 141 PS, Saloon, Petrol , ENG: LF-DE, LF72

1.6 (BK12) 4WD 02/2004-06/2009, 77 kw, 1598 ccm, 105 PS, Saloon, Petrol , ENG: Z627, Z601

2.0 (BKEP) 4WD 10/2003-12/2009, 110 kw, 1999 ccm, 150 PS, Saloon, Petrol , ENG: LF-VE, LF-DE, LF50, LF72, LFN7, LFN8

2.3 4WD 03/2004-03/2009, 118 kw, 2261 ccm, 160 PS, Saloon, Petrol , ENG: L3-VE

2.0 MZR-CD (BK12) 4WD 12/2006-06/2009, 105 kw, 1998 ccm, 143 PS, Saloon, Diesel , ENG: RF8G, RF7J

MAZDA 3 Saloon (BL) From 12/2008 to 12/2014

2.0 MZR (BL12) 4WD 03/2009-09/2014, 110 kw, 1999 ccm, 150 PS, Saloon, Petrol , ENG: LF5H, LF5W

2.2 MZR CD (BL10) 4WD 01/2009-09/2014, 110 kw, 2184 ccm, 150 PS, Saloon, Diesel , ENG: R2AA

1.6 MZR CD (BL12) 4WD 12/2008-05/2013, 80 kw, 1560 ccm, 109 PS, Saloon, Diesel , ENG: Y642

2.0 MZR DISI (BL12) 4WD 02/2009-05/2013, 111 kw, 1999 ccm, 151 PS, Saloon, Petrol , ENG: LFZ2

1.6 MZR (BL12) 4WD 12/2008-09/2014, 77 kw, 1598 ccm, 105 PS, Saloon, Petrol , ENG: Z668, Z682, Z683

1.6 MZR CD (BL14) 4WD 09/2010-05/2013, 85 kw, 1560 ccm, 116 PS, Saloon, Diesel , ENG: Y650, Y655

2.0 (BLFFP) 4WD 09/2011-09/2014, 113 kw, 1998 ccm, 154 PS, Saloon, Petrol , ENG: PE-VPS, PEY2

2.2 MZR CD (BL10) 4WD 06/2009-05/2013, 136 kw, 2184 ccm, 185 PS, Saloon, Diesel , ENG: R2AA

MAZDA 5 (CR19) From 02/2005 to 12/2010

2.0 CD (CR19) 4WD 02/2005-05/2010, 105 kw, 1998 ccm, 143 PS, MPV, Diesel , ENG: RF7J

2.0 CD (CR19) 4WD 02/2005-05/2010, 81 kw, 1998 ccm, 110 PS, MPV, Diesel , ENG: RF7J

1.8 (CR19) 4WD 02/2005-05/2010, 85 kw, 1798 ccm, 116 PS, MPV, Petrol , ENG: L823, L8-VE

2.3 (CR3W) 4WD 02/2005-09/2008, 122 kw, 2261 ccm, 166 PS, MPV, Petrol , ENG: L3-VE, L333

2.0 (CREW) 4WD 02/2005-05/2010, 107 kw, 1999 ccm, 146 PS, MPV, Petrol , ENG: LFF7, LF-DE

MAZDA 5 (CW) From 06/2010

1.8 MZR 4WD 09/2010-, 85 kw, 1798 ccm, 116 PS, MPV, Petrol , ENG: L850

2.0 (CWEFW) 4WD 06/2010-, 106 kw, 1999 ccm, 144 PS, MPV, Petrol , ENG: LF-ZB

2.0 (CWEFW) 4WD 09/2010-, 110 kw, 1999 ccm, 150 PS, MPV, Petrol , ENG: LF-ZB

2.0 4WD 01/2011-, 108 kw, 1999 ccm, 147 PS, MPV, Petrol , ENG: LF-ZB

1.6 CD 4WD 07/2010-, 85 kw, 1560 ccm, 116 PS, MPV, Diesel , ENG: Y650, Y655, Y6Y1

MAZDA 6 Estate (GH) From 12/2007 to 07/2013

2.5 MZR (GH5FW) 4WD 02/2008-07/2013, 125 kw, 2488 ccm, 170 PS, Estate, Petrol , ENG: L5-VE

2.2 MZR-CD (GH10) 4WD 01/2010-07/2013, 132 kw, 2183 ccm, 180 PS, Estate, Diesel , ENG: R2AA

2.0 MZR (GHEFW) 4WD 12/2007-07/2013, 108 kw, 1999 ccm, 147 PS, Estate, Petrol , ENG: LF-VE, LF17

2.0 MZR (GHEFW) 4WD 01/2010-07/2013, 114 kw, 1999 ccm, 155 PS, Estate, Petrol , ENG: LF-DE

2.2 MZR-CD (GH10) 4WD 08/2008-12/2011, 136 kw, 2184 ccm, 185 PS, Estate, Diesel , ENG: R2AA

2.2 MZR-CD (GH10) 4WD 01/2009-12/2010, 92 kw, 2184 ccm, 125 PS, Estate, Diesel , ENG: R2BF

2.0 MZR-CD (GH14) 4WD 12/2007-12/2010, 103 kw, 1998 ccm, 140 PS, Estate, Diesel , ENG: RF7J

2.2 D (GH10) 4WD 01/2010-07/2013, 95 kw, 2184 ccm, 129 PS, Estate, Diesel , ENG: R2BF

1.8 MZR 4WD 02/2008-07/2013, 88 kw, 1798 ccm, 120 PS, Estate, Petrol , ENG: L8-DE, L813

2.2 MZR-CD (GH10) 4WD 08/2008-07/2013, 120 kw, 2184 ccm, 163 PS, Estate, Diesel , ENG: R2AA

MAZDA 6 Hatchback (GG) From 08/2002 to 12/2008

2.0 DI (GG14) 4WD 08/2002-08/2007, 100 kw, 1998 ccm, 136 PS, Hatchback, Diesel , ENG: RF5C

2.0 (GGES) 4WD 08/2002-08/2007, 104 kw, 1999 ccm, 141 PS, Hatchback, Petrol , ENG: LF-DE, LF17, LF18

3.0 4WD 01/2005-12/2007, 164 kw, 2967 ccm, 223 PS, Hatchback, Petrol , ENG: AJ

2.0 DI (GG14) 4WD 08/2002-08/2007, 89 kw, 1998 ccm, 121 PS, Hatchback, Diesel , ENG: RF7J, RF5C

2.3 (GG3S) 4WD 08/2002-08/2007, 122 kw, 2261 ccm, 166 PS, Hatchback, Petrol , ENG: L3C1, L3-VE

1.8 4WD 08/2002-08/2007, 88 kw, 1798 ccm, 120 PS, Hatchback, Petrol , ENG: L8-VE, L813

2.0 (GGES) 4WD 03/2005-08/2007, 108 kw, 1999 ccm, 147 PS, Hatchback, Petrol , ENG: LFF7, LF-VE

3.0 4WD 01/2004-12/2007, 162 kw, 2967 ccm, 220 PS, Hatchback, Petrol , ENG: AJ

2.0 DI (GG14) 4WD 06/2005-08/2007, 105 kw, 1998 ccm, 143 PS, Hatchback, Diesel , ENG: RF7J

MAZDA 6 Hatchback (GH) From 08/2007 to 07/2013

2.2 MZR-CD (GH10) 4WD 01/2010-12/2012, 132 kw, 2184 ccm, 180 PS, Hatchback, Diesel , ENG: R2AA

2.2 MZR-CD (GH10) 4WD 01/2009-12/2012, 92 kw, 2184 ccm, 125 PS, Hatchback, Diesel , ENG: R2BF

2.5 MZR (GH5FS) 4WD 08/2007-03/2013, 125 kw, 2488 ccm, 170 PS, Hatchback, Petrol , ENG: L5-VE

2.2 MZR-CD (GH10) 4WD 01/2009-12/2012, 136 kw, 2184 ccm, 185 PS, Hatchback, Diesel , ENG: R2AA

1.8 MZR 4WD 08/2007-07/2013, 88 kw, 1798 ccm, 120 PS, Hatchback, Petrol , ENG: L8-DE, L813

2.2 D (GH10) 4WD 01/2010-12/2012, 95 kw, 2184 ccm, 129 PS, Hatchback, Diesel , ENG: R2BF

2.0 MZR-CD (GH14) 4WD 08/2007-10/2009, 103 kw, 1998 ccm, 140 PS, Hatchback, Diesel , ENG: RF7J

2.2 MZR-CD (GH10) 4WD 01/2009-12/2012, 120 kw, 2184 ccm, 163 PS, Hatchback, Diesel , ENG: R2AA

2.0 MZR (GHEFS) 4WD 08/2007-07/2013, 108 kw, 1999 ccm, 147 PS, Hatchback, Petrol , ENG: LF-VE, LF17

2.0 MZR (GHEFS) 4WD 01/2010-12/2012, 114 kw, 1999 ccm, 155 PS, Hatchback, Petrol , ENG: LF-DE

MAZDA 6 Saloon (GG) From 06/2002 to 12/2008

2.3 MPS Turbo (GG3P) 4WD 12/2005-08/2007, 191 kw, 2261 ccm, 260 PS, Saloon, Petrol , ENG: L3-VDT, L3KG

2.0 (GGEP) 4WD 03/2005-08/2007, 108 kw, 1999 ccm, 147 PS, Saloon, Petrol , ENG: LFF7, LF-VE

2.0 DI (GG14) 4WD 08/2002-08/2007, 89 kw, 1998 ccm, 121 PS, Saloon, Diesel , ENG: RF7J, RF5C

2.0 DI (GG14) 4WD 06/2005-08/2007, 105 kw, 1998 ccm, 143 PS, Saloon, Diesel , ENG: RF7J

2.3 4WD 03/2005-07/2007, 120 kw, 2261 ccm, 163 PS, Saloon, Petrol , ENG: L3C1

2.3 (GG3P) 4WD 06/2002-08/2007, 122 kw, 2261 ccm, 166 PS, Saloon, Petrol , ENG: L3C1, L3-VE

1.8 4WD 08/2002-08/2007, 88 kw, 1798 ccm, 120 PS, Saloon, Petrol , ENG: L829, L8-DE, L813

2.0 DI (GG14) 4WD 06/2002-08/2007, 100 kw, 1998 ccm, 136 PS, Saloon, Diesel , ENG: RF5C

2.0 (GGEP) 4WD 06/2002-08/2007, 104 kw, 1999 ccm, 141 PS, Saloon, Petrol , ENG: LF-DE, LF17, LF18

MAZDA 6 Saloon (GH) From 08/2007 to 12/2013

2.2 MZR-CD (GH10) 4WD 01/2009-12/2012, 120 kw, 2184 ccm, 163 PS, Saloon, Diesel , ENG: R2AA

2.5 MZR (GH5FS) 4WD 08/2007-07/2013, 125 kw, 2488 ccm, 170 PS, Saloon, Petrol , ENG: L5-VE

1.8 MZR 4WD 08/2007-07/2013, 88 kw, 1798 ccm, 120 PS, Saloon, Petrol , ENG: L8-DE, L813

2.2 D (GH10) 4WD 01/2010-12/2012, 95 kw, 2184 ccm, 129 PS, Saloon, Diesel , ENG: R2BF

2.2 MZR-CD (GH10) 4WD 01/2009-12/2012, 136 kw, 2184 ccm, 185 PS, Saloon, Diesel , ENG: R2AA

2.0 MZR-CD (GH14) 4WD 08/2007-10/2010, 103 kw, 1998 ccm, 140 PS, Saloon, Diesel , ENG: RF7J

2.2 MZR-CD (GH10) 4WD 01/2009-12/2012, 92 kw, 2184 ccm, 125 PS, Saloon, Diesel , ENG: R2BF

2.0 MZR (GHEFP) 4WD 08/2007-12/2012, 108 kw, 1999 ccm, 147 PS, Saloon, Petrol , ENG: LFYA, LFYB, LF-VE, LF4J, LF4K

2.2 D (GH10) 4WD 01/2010-07/2013, 132 kw, 2183 ccm, 180 PS, Saloon, Diesel , ENG: R2AA

2.0 MZR (GHEFP) 4WD 01/2010-12/2012, 114 kw, 1999 ccm, 155 PS, Saloon, Petrol , ENG: LF-DE

MAZDA 6 Station Wagon (GY) From 01/2002 to 02/2008

2.3 (GY3W) 4WD 01/2002-02/2008, 122 kw, 2261 ccm, 166 PS, Estate, Petrol , ENG: L3C1, L3-VE

1.8 4WD 08/2002-08/2007, 88 kw, 1798 ccm, 120 PS, Estate, Petrol , ENG: L8-DE, L813

2.0 (GYEW) 4WD 03/2005-08/2007, 108 kw, 1999 ccm, 147 PS, Estate, Petrol , ENG: LFF7, LF-VE

2.3 AWD (GY3W) 4WD 11/2002-08/2007, 119 kw, 2261 ccm, 162 PS, Estate, Petrol , ENG: L3C1, L3-VE

2.0 DI (GY19) 4WD 08/2002-08/2007, 89 kw, 1998 ccm, 121 PS, Estate, Diesel , ENG: RF7J, RF5C

2.0 DI (GY19) 4WD 06/2005-08/2007, 105 kw, 1998 ccm, 143 PS, Estate, Diesel , ENG: RF7J

2.0 DI (GY19) 4WD 08/2002-02/2005, 100 kw, 1998 ccm, 136 PS, Estate, Diesel , ENG: RF5C

2.0 (GYEW) 4WD 08/2002-08/2007, 104 kw, 1999 ccm, 141 PS, Estate, Petrol , ENG: LF-DE, LF17, LF18

MAZDA CX-7 (ER) From 06/2006 to 12/2014

2.3 MZR DISI Turbo AWD (ER3P) 4WD 06/2009-03/2013, 191 kw, 2261 ccm, 260 PS, SUV, Petrol , ENG: L3-VDT

2.3 AWD 4WD 06/2006-12/2012, 182 kw, 2261 ccm, 248 PS, SUV, Petrol , ENG: L3-VDT

2.3 MZR DISI Turbo AWD (ER103) 4WD 06/2006-12/2014, 175 kw, 2261 ccm, 238 PS, SUV, Petrol , ENG: L3-VDT

2.5 MZR (ER10L) 4WD 07/2009-03/2013, 120 kw, 2488 ccm, 163 PS, SUV, Petrol , ENG: L5-VE

2.2 MZR-CD AWD (ER10A) 4WD 07/2009-03/2013, 127 kw, 2184 ccm, 173 PS, SUV, Diesel , ENG: R2AA

2.2 MZR-CD AWD (ER10A) 4WD 01/2012-03/2013, 120 kw, 2184 ccm, 163 PS, SUV, Diesel , ENG: R2AA

2.3 MZR DISI Turbo AWD (ER3P) 4WD 10/2007-08/2009, 190 kw, 2261 ccm, 258 PS, SUV, Petrol , ENG: L3-VDT

MAZDA MX-5 Mk III (NC) From 03/2005 to 12/2014

1.8 (NC18) Rear-Wheel Drive 03/2005-12/2014, 93 kw, 1798 ccm, 126 PS, Convertible, Petrol , ENG: L831, L8-VE, L828

2.0 (NC18) Rear-Wheel Drive 07/2005-12/2014, 118 kw, 1999 ccm, 160 PS, Convertible, Petrol , ENG: LFY7, LFG8, LF-VE, LFG7, LFZD

Berry
12 Nov, 2025
elderly car so really pleased that the part could be supplied :-) Correct part arrived swiftly - excellent - thank you
Edward & Susan
20 OCT, 2025
These guys were real helpful when I was looking for an EGR valve. Great communications and fast delivery, the valve did exactly as It was meant to do and it was a lot cheaper than everywhere else I looked. I'll be using eAuto Parts again. Top banana.
Charlie
27 AUG, 2025
eAuto Parts made me happy because it only took 2 minutes to order the part and at a very good price, also very quick delivery, will definitely deal with them again.
Adam Taylor
12 May, 2025
Quick enquiry response, easy buying and quick delivery. Quality of goods was good and fitted with no problem (Suzuki bonnet hinges.) recommended.
Helena Garcia
2 January, 2025
The correct part was rapidly identified and located, and was despatched promply to my chosen repairer in time for the work to be done on schedule. Very pleased with the service and will be using eAuto Parts again.