Knock Sensor RIDEX 3921K0051 OE Ref 1920 FR
- EAN: 4065739008709
- Number of pins: 2
- OEM Reference number: 1920FR
- PURPOSE GROUP: Engine Knock
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Knock Sensor RIDEX 3921K0051 OE Ref 1920 FR
Knock Sensor OE Ref 1920 FR – RIDEX – OEM 1920FR
This Knock Sensor OE Ref 1920 FR is supplied by RIDEX as a replacement for OEM reference 1920FR. It is intended for use in selected CITROEN, PEUGEOT vehicles and designed to meet original equipment fit and function requirements.
The part is identified by manufacturer reference 3921K0051 and EAN 4065739008709, allowing accurate identification and compatibility verification before installation. It is suitable for replacing worn, damaged, or non-functioning components where dependable operation is required.
Correct part selection is essential to ensure proper fitment. Please verify compatibility using the OEM reference number or the vehicle registration lookup tool before ordering.
Vehicle Compatibility
Compatible with selected CITROEN, PEUGEOT models. Detailed compatibility information is available in the Compatibility section of this page.
If this part is not suitable for your vehicle, browse alternative options in our Engine category.
Reference number(s) comparable with the original spare part number
1.6 16V (MBNFU) 4WD 10/2000-03/2008, 80 kw, 1587 ccm, 109 PS, Box Body/MPV, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 08/2005-12/2007, 81 kw, 1587 ccm, 110 PS, Box Body/MPV, Petrol , ENG: NFU (TU5JP4)
1.4 bivalent 4WD 11/2002-12/2011, 48 kw, 1360 ccm, 65 PS, Box Body/MPV, Petrol , ENG: KFW (TU3JP)
1.4 i bivalent (MBKFW) 4WD 04/2003-10/2005, 55 kw, 1360 ccm, 75 PS, Box Body/MPV, Petrol , ENG: KFW (TU3JP)
1.4 i (MBKFX, MBKFW) 4WD 07/1996-12/2011, 55 kw, 1360 ccm, 75 PS, Box Body/MPV, Petrol , ENG: KFX (TU3JP), KFW (TU3A), KFW (TU3JP)
1.4 bivalent 4WD 11/2002-12/2011, 48 kw, 1360 ccm, 65 PS, MPV, Petrol , ENG: KFW (TU3JP)
1.4 i bivalent (MFKFW) 4WD 04/2003-10/2008, 55 kw, 1360 ccm, 75 PS, MPV, Petrol , ENG: KFW (TU3JP)
1.4 4WD 11/2002-10/2005, 53 kw, 1360 ccm, 72 PS, MPV, Petrol , ENG: KFW (TU3JP)
1.4 i (MFKFX, MFKFW, GJKFWB, GJKFWC, GFKFWC) 4WD 07/1996-12/2011, 55 kw, 1360 ccm, 75 PS, MPV, Petrol , ENG: KFX (TU3JP), KFW (TU3JP)
1.6 16V (MFNFU) 4WD 11/2002-10/2008, 81 kw, 1587 ccm, 110 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.6 16V (MFNFU) 4WD 10/2000-12/2011, 80 kw, 1587 ccm, 109 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.1 i (MFHDZ, MFHFX) 4WD 07/1996-05/2008, 44 kw, 1124 ccm, 60 PS, MPV, Petrol , ENG: HDZ (TU1M), HFX (TU1JP)
1.6 4WD 04/2008-, 66 kw, 1587 ccm, 90 PS, Box Body/MPV, Petrol , ENG: NFR (TU5JP4B)
1.6 4WD 04/2008-, 80 kw, 1587 ccm, 109 PS, Box Body/MPV, Petrol , ENG: NFU (TU5JP4)
1.6 4WD 11/2008-, 81 kw, 1587 ccm, 110 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.6 4WD 04/2008-, 66 kw, 1587 ccm, 90 PS, MPV, Petrol , ENG: NFR (TU5JP4B)
1.6 4WD 04/2008-, 80 kw, 1587 ccm, 109 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.6 VTi 115 (DDNFP0, DDNFP6, DDNFP9) 4WD 11/2012-, 85 kw, 1587 ccm, 115 PS, Saloon, Petrol , ENG: NFP (EC5)
1.4 4WD 10/2006-12/2009, 55 kw, 1360 ccm, 75 PS, Hatchback, Petrol , ENG: KFV (TU3JP)
1.6 4WD 07/2003-10/2010, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.1 4WD 09/2003-09/2012, 44 kw, 1124 ccm, 60 PS, Hatchback, Petrol , ENG: HFX (TU1A), HFX (TU1JP)
1.4 16V 4WD 04/2005-12/2009, 65 kw, 1360 ccm, 90 PS, Hatchback, Petrol , ENG: KFU (ET3J4)
1.6 VTS 4WD 10/2004-12/2009, 90 kw, 1587 ccm, 122 PS, Hatchback, Petrol , ENG: NFS (TU5JP4S)
1.4 4WD 09/2003-12/2009, 54 kw, 1360 ccm, 73 PS, Hatchback, Petrol , ENG: KFV (TU3JP), KFV (TU3A)
1.1 4WD 11/2003-12/2009, 44 kw, 1124 ccm, 60 PS, Hatchback Van, Petrol , ENG: HFX (TU1A), HFX (TU1JP)
1.6 Bioflex 4WD 06/2005-12/2013, 83 kw, 1587 ccm, 113 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 02/2002-08/2010, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 05/2003-09/2005, 81 kw, 1587 ccm, 110 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.4 BiFuel 4WD 09/2008-12/2009, 54 kw, 1360 ccm, 73 PS, Hatchback, Petrol , ENG: KFV (TU3JP)
1.1 i 4WD 02/2002-, 44 kw, 1124 ccm, 60 PS, Hatchback, Petrol , ENG: HFX (TU1A), HFX (TU1JP)
1.4 16V 4WD 12/2003-, 65 kw, 1360 ccm, 88 PS, Hatchback, Petrol , ENG: KFU (ET3J4)
1.1 LPG 4WD 06/2006-12/2009, 44 kw, 1124 ccm, 60 PS, Hatchback, Petrol , ENG: HFX (TU1A)
1.4 4WD 11/2009-09/2016, 54 kw, 1360 ccm, 73 PS, Hatchback, Petrol , ENG: K6E (TU3A), KFT (TU3A), KFT (TU3AE5)
1.1 BiFuel 4WD 11/2010-, 44 kw, 1124 ccm, 60 PS, Hatchback, Petrol , ENG: HFX (TU1A)
1.4 LPG 4WD 07/2010-, 54 kw, 1360 ccm, 73 PS, Hatchback, Petrol , ENG: KFT (TU3A)
1.1 i 4WD 09/2009-01/2013, 44 kw, 1124 ccm, 60 PS, Hatchback, Petrol , ENG: HFX (TU1A), HFV (TU1A)
1.6 VTi (SXNFPT) 4WD 02/2017-, 85 kw, 1587 ccm, 115 PS, Hatchback, Petrol , ENG: NFP (EC5)
1.4 4WD 07/2003-, 55 kw, 1360 ccm, 75 PS, Convertible, Petrol , ENG: KFV (TU3A)
1.6 4WD 05/2003-, 80 kw, 1587 ccm, 109 PS, Convertible, Petrol , ENG: NFU (TU5JP4)
1.4 4WD 05/2003-, 54 kw, 1360 ccm, 73 PS, Convertible, Petrol , ENG: KFV (TU3JP), KFV (TU3A)
1.6 16V 4WD 11/2004-07/2011, 80 kw, 1587 ccm, 109 PS, Coupe, Petrol , ENG: NFU (TU5JP4)
1.4 16V 4WD 11/2004-07/2011, 65 kw, 1360 ccm, 88 PS, Coupe, Petrol , ENG: KFU (ET3J4)
1.4 16V 4WD 11/2004-07/2011, 65 kw, 1360 ccm, 88 PS, Hatchback, Petrol , ENG: KFU (ET3J4)
1.6 16V 4WD 11/2004-07/2011, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 16V Bio-Flex 4WD 09/2007-07/2008, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 07/2006-07/2011, 80 kw, 1587 ccm, 109 PS, Saloon, Petrol , ENG: NFU (TU5JP4)
1.4 4WD 02/2008-, 54 kw, 1360 ccm, 73 PS, Box Body/MPV, Petrol , ENG: KFV (TU3A), KFT (TU3AE5)
1.4 4WD 04/2009-, 54 kw, 1360 ccm, 73 PS, MPV, Petrol , ENG: KFV (TU3A), KFT (TU3AE5)
1.6 VTS 4WD 09/2000-09/2003, 72 kw, 1587 ccm, 98 PS, Hatchback, Petrol , ENG: NFT (TU5JP)
1.6 4WD 02/2001-04/2004, 74 kw, 1587 ccm, 101 PS, Hatchback, Petrol , ENG: NFT (TU5JP)
1.4 i 4WD 04/1997-03/2005, 55 kw, 1360 ccm, 75 PS, Hatchback, Petrol , ENG: KFX (TU3JP), KFW (TU3JP)
1.6 16V 4WD 09/2000-03/2005, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 09/2000-03/2005, 80 kw, 1587 ccm, 109 PS, Coupe, Petrol , ENG: NFU (TU5JP4)
1.4 i 4WD 03/1998-03/2005, 55 kw, 1360 ccm, 75 PS, Coupe, Petrol , ENG: KFX (TU3JP), KFW (TU3JP)
1.4 i 4WD 10/1997-08/2005, 55 kw, 1360 ccm, 75 PS, Estate, Petrol , ENG: KFX (TU3JP), KFW (TU3JP)
1.6 16V 4WD 09/2000-08/2005, 80 kw, 1587 ccm, 109 PS, Estate, Petrol , ENG: NFU (TU5JP4)
1.6 4WD 12/1999-12/2010, 70 kw, 1587 ccm, 95 PS, MPV, Petrol , ENG: NFV (TU5JP)
1.6 16V 4WD 09/2005-12/2011, 80 kw, 1587 ccm, 109 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 06/2005-09/2006, 81 kw, 1587 ccm, 110 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.6 Chrono 4WD 04/2001-10/2004, 74 kw, 1587 ccm, 101 PS, MPV, Petrol , ENG: NFV (TU5JP)
1.4 16V 4WD 10/2005-, 65 kw, 1360 ccm, 88 PS, Hatchback, Petrol , ENG: KFU (ET3J4)
1.6 16V 4WD 04/2005-, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.4 4WD 04/2005-, 54 kw, 1360 ccm, 75 PS, Hatchback, Petrol , ENG: KFV (TU3JP), KFV (TU3A)
1.6 16V (2DNFUF, 2DNFUR) 4WD 09/2000-12/2007, 80 kw, 1587 ccm, 109 PS, Convertible, Petrol , ENG: NFU (TU5JP4)
1.6 4WD 09/2001-12/2008, 81 kw, 1587 ccm, 110 PS, Convertible, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 06/2001-04/2009, 79 kw, 1587 ccm, 107 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.4 LPG 4WD 05/2006-09/2007, 55 kw, 1360 ccm, 75 PS, Hatchback, Petrol , ENG: KFV (TU3JP)
1.4 i 4WD 09/1998-12/2012, 55 kw, 1360 ccm, 75 PS, Hatchback, Petrol , ENG: KFX (TU3JP), KFW (TU3JP), KFW (TU3A)
1.4 16V 4WD 10/2003-02/2008, 65 kw, 1360 ccm, 88 PS, Hatchback, Petrol , ENG: KFU (ET3J4)
1.6 4WD 05/2005-07/2008, 81 kw, 1587 ccm, 110 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 i 4WD 09/1998-12/2000, 65 kw, 1587 ccm, 89 PS, Hatchback, Petrol , ENG: NFZ (TU5JP)
1.6 16V 4WD 07/2000-04/2009, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 03/2007-, 80 kw, 1587 ccm, 109 PS, Saloon, Petrol , ENG: NFU (TU5JP4)
1.4 16V 4WD 10/2003-, 65 kw, 1360 ccm, 88 PS, Estate, Petrol , ENG: KFU (ET3J4)
1.6 LPG 4WD 07/2002-02/2007, 80 kw, 1587 ccm, 109 PS, Estate, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 07/2002-, 80 kw, 1587 ccm, 109 PS, Estate, Petrol , ENG: NFU (TU5JP4)
1.6 4WD 05/2005-07/2008, 81 kw, 1587 ccm, 110 PS, Estate, Petrol , ENG: NFU (TU5JP4)
1.1 4WD 09/2002-02/2007, 44 kw, 1124 ccm, 60 PS, Hatchback Van, Petrol , ENG: HFZ (TU1JP)
1.1 LPG 4WD 04/2009-06/2013, 44 kw, 1124 ccm, 60 PS, Hatchback, Petrol , ENG: HFX (TU1JP), HFX (TU1A)
1.4 i (2LKFWA, 2MKFWA) 4WD 01/2009-08/2013, 55 kw, 1360 ccm, 75 PS, Hatchback, Petrol , ENG: KFW (TU3A)
1.1 4WD 01/2009-06/2013, 44 kw, 1124 ccm, 60 PS, Hatchback, Petrol , ENG: HFX (TU1A)
1.4 i 4WD 09/2010-06/2013, 54 kw, 1360 ccm, 73 PS, Hatchback, Petrol , ENG: KFT (TU3AE5)
1.4 16V 4WD 02/2006-10/2013, 65 kw, 1360 ccm, 88 PS, Hatchback, Petrol , ENG: KFU (ET3J4)
1.4 BiFuel 4WD 08/2007-12/2013, 54 kw, 1360 ccm, 73 PS, Hatchback, Petrol , ENG: KFV (TU3A)
1.4 4WD 08/2008-12/2015, 55 kw, 1360 ccm, 75 PS, Hatchback, Petrol , ENG: KFV (TU3A), KFW (TU3A)
1.6 16V 4WD 02/2006-10/2013, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.4 4WD 04/2006-10/2013, 54 kw, 1360 ccm, 73 PS, Hatchback, Petrol , ENG: KFT (TU3A), KFV (TU3A), KFT (TU3AE5)
1.4 4WD 06/2007-10/2008, 54 kw, 1360 ccm, 74 PS, Hatchback Van, Petrol , ENG: KFV (TU3A)
1.4 4WD 12/2007-12/2012, 54 kw, 1360 ccm, 73 PS, Saloon, Petrol , ENG: KFT (TU3A), KFV (TU3A)
1.4 LPG 4WD 08/2007-12/2012, 54 kw, 1360 ccm, 73 PS, Estate, Petrol , ENG: KFV (TU3A)
1.4 4WD 06/2007-12/2012, 54 kw, 1360 ccm, 73 PS, Estate, Petrol , ENG: KFV (TU3A), KFT (TU3AE5)
1.6 4WD 01/2013-12/2019, 85 kw, 1587 ccm, 116 PS, Hatchback, Petrol , ENG: EC5F
1.6 VTi 115 4WD 11/2012-10/2017, 85 kw, 1587 ccm, 115 PS, Saloon, Petrol , ENG: NFP (EC5)
1.6 LPG 4WD 07/2014-, 85 kw, 1587 ccm, 116 PS, Saloon, Petrol , ENG: NFP (EC5)
1.4 16V 4WD 11/2003-07/2007, 65 kw, 1360 ccm, 88 PS, Hatchback, Petrol , ENG: KFU (ET3J4)
1.6 16V 4WD 08/2000-11/2007, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 4WD 07/2006-04/2012, 81 kw, 1587 ccm, 110 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 03/2003-04/2009, 80 kw, 1587 ccm, 110 PS, Convertible, Petrol , ENG: NFU (TU5JP4)
1.4 16V 4WD 11/2003-07/2007, 65 kw, 1360 ccm, 88 PS, Estate, Petrol , ENG: KFU (ET3J4)
1.6 BioFlex 4WD 09/2007-04/2008, 80 kw, 1587 ccm, 109 PS, Estate, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 03/2002-04/2008, 80 kw, 1587 ccm, 109 PS, Estate, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 03/2002-04/2008, 80 kw, 1587 ccm, 109 PS, Estate, Petrol , ENG: NFU (TU5JP4)
1.4 16V 4WD 11/2003-07/2007, 65 kw, 1360 ccm, 88 PS, Estate, Petrol , ENG: KFU (ET3J4)
1.6 BioFlex 4WD 09/2007-04/2008, 80 kw, 1587 ccm, 109 PS, Estate, Petrol , ENG: NFU (TU5JP4)
1.6 BioFlex 4WD 04/2008-10/2014, 80 kw, 1587 ccm, 109 PS, Hatchback, Petrol , ENG: NFU (TU5JP4)
1.6 VTi 115 4WD 05/2015-06/2021, 85 kw, 1587 ccm, 115 PS, Hatchback, Petrol , ENG: NFP (EC5)
1.6 Bioflex 4WD 03/2009-10/2014, 82 kw, 1587 ccm, 112 PS, Estate, Petrol , ENG: NFU (TU5JP4)
1.6 VTi (LWNFPA) 4WD 03/2014-06/2021, 85 kw, 1587 ccm, 115 PS, Estate, Petrol , ENG: NFP (EC5)
1.4 4WD 02/2008-, 54 kw, 1360 ccm, 73 PS, Box Body/MPV, Petrol , ENG: KFV (TU3A), KFT (TU3AE5)
1.4 4WD 04/2008-, 54 kw, 1360 ccm, 73 PS, MPV, Petrol , ENG: KFV (TU3A), KFT (TU3AE5)
1.6 4WD 04/2008-, 66 kw, 1587 ccm, 90 PS, Box Body/MPV, Petrol , ENG: NFR (TU5JP4B)
1.6 4WD 04/2008-, 80 kw, 1587 ccm, 109 PS, Box Body/MPV, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 07/2001-03/2008, 80 kw, 1587 ccm, 109 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.6 4WD 09/2011-12/2015, 81 kw, 1587 ccm, 110 PS, Box Body/MPV, Petrol , ENG: NFU (TU5JP4)
1.6 16V 4WD 09/2011-12/2013, 81 kw, 1587 ccm, 110 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.6 4WD 09/2000-05/2008, 80 kw, 1587 ccm, 109 PS, Platform/Chassis, Petrol
1.6 VTi 4WD 04/2008-, 66 kw, 1587 ccm, 90 PS, MPV, Petrol , ENG: NFR (TU5JP4B)
1.6 VTi 4WD 04/2008-, 80 kw, 1587 ccm, 109 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.6 VTi 4WD 09/2008-, 81 kw, 1587 ccm, 110 PS, MPV, Petrol , ENG: NFU (TU5JP4)
1.4 4WD 11/2002-10/2006, 54 kw, 1360 ccm, 73 PS, Box Body/MPV, Petrol , ENG: KFV (TU3A)
- Berry12 Nov, 2025elderly car so really pleased that the part could be supplied :-) Correct part arrived swiftly - excellent - thank you
- Edward & Susan20 OCT, 2025These 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.
- Charlie27 AUG, 2025eAuto 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 Taylor12 May, 2025Quick enquiry response, easy buying and quick delivery. Quality of goods was good and fitted with no problem (Suzuki bonnet hinges.) recommended.
- Helena Garcia2 January, 2025The 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.
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