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Coolant Level Sensor FEBI BILSTEIN 21751
Sensor Coolant Level FEBI BILSTEIN 21751. Fits 29 car models (MERCEDES-BENZ), 1936–2004. Replaces 2 OE numbers.

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Specification. From the manufacturer's data.
- Brand
- FEBI BILSTEIN
- Voltage [V]
- 12 V
- Thickness [mm]
- 22 mm
- Length [mm]
- 90 mm
- Width [mm]
- 35 mm
- Weight [kg]
- 0.02 kg
- Category
- Sensor Coolant Level
- MPN
- 21751
- SKU
- 0101-21751
- GTIN / EAN
- 4027816217510
- What's included
- 1x Sensor Coolant Level
OE numbers. The originals this part replaces.
Numbers the vehicle makers and other brands use for this part. Only a confirmed OE number links to its own page; other brands' equivalents are under “Equivalent products”.
- MERCEDES-BENZ124 540 02 44
- MERCEDES-BENZA124 540 02 44
Equivalent products. They fit in the same place.
4 available · 49 numbers
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All 49 cross-reference numbers
Numbers other makers give for this part. They are aftermarket numbers, not the vehicle maker's OE numbers; a linked number is one we sell.
- 3RG 95500
- 4U Autoparts 16100MR
- ABAKUS 120-06-006
- AIC 51877
- Alfa e-Parts AF08256
- AUGER 104194
- Autostar Germany 515876
- BAPMIC BACB11-740004
- BBR Automotive 001-60-07886
- BIRTH 8763
- BOGAP C4253100
- CAUTEX 750836
- CSV electronic parts CSN1025
- ELTA AUTOMOTIVE EV2514
- ESEN SKV 17SKV641
- FARE SA 28637
- FARE-CO 28637
- FARE-MX 28637
- FARE-RCH 28637
- FLENNOR FSE51877
- FREY 780100401
- Hamburg Tech 1250-00002
- HELLA 6EZ 004 765-041
- HOFFER 7532458
- KAMOKA 4100003
- KRAFT AUTOMOTIVE 9011015
- MAGNETI MARELLI 359003410720
- MAXGEAR 21-0427
- MEAT & DORIA 72458
- Metalcaucho 47946
- METZGER AUTOTEILE 0901025
- MEYLE 014 800 9065
- ORIGINAL IMPERIUM 5314
- OSSCA 05741
- PLYOM P750836
- PREXAparts P303010
- RECOFICIAL CSN1025
- SAMPA 010.1396
- SCHNIEDER AUTOTECH BZS88.00066
- STC T447946
- STELLOX 06-04152-SX
- SWAG 10 92 1751
- TOPRAN 400 903
- TRUCKTEC AUTOMOTIVE 02.42.093
- VAN HECK D6871
- VEMA 15806
- VEMO V30-72-0632
- WXQP 130099
- XEVO XVM0014
Compatible cars. MERCEDES-BENZ, 29 models.
Matched from the manufacturer's data. Production years 1936–2004.
| Model | Engines | Years |
|---|---|---|
| MERCEDES-BENZ29 models | ||
| MERCEDES-BENZ 123 Coupe (C123) | 230 C (123.043), 230 CE (123.243), 280 C (123.050), 280 CE | 1977–1985 |
| MERCEDES-BENZ 123 Saloon (W123) | 200, 200 (123.020), 200 (123.220), 200 D, 200 D (123.120), 220 D, 230 (123.023), 230 E (123.223), 240 D (123.123), 250 (123.026), 280 (123.030), 280 E (123.033), 300 D (123.130), 300 Turbo-D (123.133) | 1976–1985 |
| MERCEDES-BENZ 123 T-Model (S123) | 200 T, 230 T (123.083), 230 TE (123.283), 240 T D, 240 T D (123.183), 250 T (123.086), 280 TE (123.093), 300 T D (123.190), 300 T Turbo-D (123.193) | 1977–1986 |
| MERCEDES-BENZ 124 Convertible (A124) | 300 CE-24 (124.061) | 1991–1993 |
| MERCEDES-BENZ 124 Coupe (C124) | 200 CE (124.040), 200 CE (124.041), 220 CE (124.042), 230 CE (124.043), 230 CE Cat (124.043), 300 CE, 300 CE (124.050), 300 CE-24 (124.051), 320 CE (124.052) | 1987–1993 |
| MERCEDES-BENZ 124 Saloon (W124) | 200, 200 (124.020), 200 D (124.120), 200 E (124.019), 200 E (124.021), 220 E (124.022), 230 E (124.023), 230 E Cat (124.023), 250 D (124.125), 250 Turbo-D (124.128), 260 E (124.026), 260 E 4-matic (124.226), 280 E (124.028), 300 D (124.130), 300 D 4-matic (124.330), 300 E, 300 E (124.030), 300 E 4-matic, 300 E 4-matic (124.230), 300 E-24 (124.031), 300 Turbo-D (124.133), 300 Turbo-D 4-matic (124.333), 320 E (124.032), 400 E 4.2 (124.034), 500 E (124.036) | 1984–1993 |
MERCEDES-BENZ23 more models
| Model | Engines | Years |
|---|---|---|
| MERCEDES-BENZ 124 T-Model (S124) | 200 T (124.080), 200 T D (124.180), 200 TE (124.079), 200 TE (124.081), 220 TE (124.082), 230 TE (124.083), 230 TE Cat (124.083), 250 T D (124.185), 250 TD Turbo (124.188), 260 TE FGST., 280 TE (124.088), 300 T D (124.190), 300 T Turbo-D (124.193), 300 TE (124.090), 300 TE 4-matic (124.290), 300 TE-24 (124.091), 320 TE (124.092) | 1985–1993 |
| MERCEDES-BENZ 170 Saloon (W136, W191) | 170 D (136.110), 170 S (136.040, 136.049), 170 S-D (136.181, 136.182), 170 V (136.010) | 1936–1955 |
| MERCEDES-BENZ 190 (W201) | 2.0 (201.022), 2.0 (201.023), D 2.0 (201.122), D 2.5 (201.126), E 1.8 (201.018), E 2.0, E 2.0 (201.024), E 2.3, E 2.3 (201.028), E 2.3-16, E 2.3-16 (201.034), E 2.5-16 (201.035), E 2.5-16 Evolution (201.036), E 2.5-16 Evolution II, E 2.6, E 2.6 (201.029), Turbo-D 2.5 (201.128) | 1982–1993 |
| MERCEDES-BENZ C-CLASS (W202) | C 180 (202.018), C 200 (202.020), C 200 CDI (202.134), C 200 D (202.120), C 200 D (202.122), C 200 Kompressor (202.025), C 220 (202.022), C 220 CDI (202.133), C 220 D (202.021), C 220 D (202.121), C 230 (202.023), C 230 Kompressor (202.024), C 240 (202.026), C 250 D (202.125), C 250 Turbo-D (202.128), C 280 (202.028), C 280 (202.029), C 36 AMG (202.028), C 43 AMG (202.033) | 1993–2000 |
| MERCEDES-BENZ C-CLASS T-Model (S202) | C 180 T (202.078), C 200 T (202.080), C 200 T CDI (202.194), C 200 T D (202.180), C 200 T Kompressor (202.082), C 220 T CDI (202.193), C 220 T D (202.182), C 230 T (202.083), C 230 T Kompressor (202.085), C 240 T (202.086), C 250 T Turbo-D (202.188), C 280 T (202.089), C 43 AMG (202.093) | 1996–2001 |
| MERCEDES-BENZ CLK (C208) | CLK 200 (208.335), CLK 200 Kompressor (208.344), CLK 200 Kompressor (208.345), CLK 230 Kompressor (208.347), CLK 230 Kompressor (208.348), CLK 320 (208.365), CLK 430 (208.370), CLK 55 AMG (208.374) | 1997–2003 |
| MERCEDES-BENZ CLK Convertible (A208) | CLK 200 (208.435), CLK 200 Kompressor (208.444), CLK 200 Kompressor (208.445), CLK 230 Kompressor (208.447), CLK 230 Kompressor (208.448), CLK 320 (208.465), CLK 430 (208.470) | 1998–2002 |
| MERCEDES-BENZ E-CLASS (W124) | E 200 (124.019), E 200 D (124.120), E 220 (124.022), E 250 D (124.126, 124.129), E 250 Turbo-D (124.128), E 280 (124.028), E 280 (124.029), E 300 4-matic (124.230), E 300 D (124.131), E 300 Turbo-D (124.133), E 300 Turbo-D 4-matic (124.333), E 320 (124.032), E 420 (124.034), E 500 (124.036), E 60 AMG (124.036) | 1993–1996 |
| MERCEDES-BENZ E-CLASS (W210) | E 200 (210.035), E 200 CDI (210.007), E 200 D (210.003), E 200 Kompressor (210.045), E 200 Kompressor (210.048), E 220 CDI (210.006), E 220 D, E 220 D (210.004), E 230 (210.037), E 240 (210.061), E 240 (210.062), E 250 D (210.010), E 250 Turbo-D (210.015), E 270 CDI (210.016), E 280 (210.053), E 280 (210.063), E 280 4-matic (210.081), E 290 Turbo-D (210.017), E 300 D (210.020), E 300 Turbo-D (210.025), E 320 (210.065), E 320 4-matic (210.082), E 320 CDI (210.026), E 420 (210.072), E 430 (210.070), E 430 4-matic (210.083), E 50 AMG (210.072), E 55 AMG (210.074) | 1995–2003 |
| MERCEDES-BENZ E-CLASS Convertible (A124) | E 200 (124.060), E 220 (124.062), E 320 (124.066), E 36 AMG (124.066) | 1993–1998 |
| MERCEDES-BENZ E-CLASS Coupe (C124) | E 200 (124.040), E 220 (124.042), E 320 (124.052), E 36 AMG (124.052) | 1993–1997 |
| MERCEDES-BENZ E-CLASS Platform/Chassis (VF210) | E 280 (210.663) | 1996–2003 |
| MERCEDES-BENZ E-CLASS T-Model (S124) | E 200 T (124.079), E 220 T (124.082), E 250 TD (124.186), E 250 Turbo D, E 280 T (124.088), E 300 T 4-matic (124.290), E 300 T Turbo-D (124.193), E 300 T Turbo-D 4-matic (124.393), E 300 TD (124.191), E 320 T (124.092), E 36 T AMG (124.092) | 1993–1996 |
| MERCEDES-BENZ E-CLASS T-Model (S210) | E 200 T (210.235), E 200 T Kompressor (210.245), E 200 T Kompressor (210.248), E 220 T CDI (210.206), E 230 T (210.237), E 240 T (210.261), E 240 T (210.262), E 250 T D (210.210), E 250 T Turbo-D (210.215), E 270 T CDI (210.216), E 280 T (210.263), E 280 T 4-matic (210.281), E 290 T Turbo-D (210.217), E 300 T Turbo-D (210.225), E 320 T (210.265), E 320 T 4-matic (210.282), E 320 T CDI (210.226), E 420 T (210.272), E 430 T (210.270), E 430 T 4-matic (210.283), E 55 T AMG (210.274) | 1996–2003 |
| MERCEDES-BENZ S-CLASS (W116) | 280 S (116.020), 280 SE, SEL (116.024, 116.025), 350 SE, SEL (116.028, 116.029), 450 SE, SEL (116.032), 450 SEL 6.9 (116.036) | 1972–1980 |
| MERCEDES-BENZ S-CLASS (W126) | 260 SE (126.020), 280 S (126.021), 280 SE, SEL (126.022, 126.023), 300 SE, SEL (126.024, 126.025), 380 SE, SEL (126.032, 126.033), 380 SE, SEL (126.032), 420 SE, SEL, 420 SE, SEL (126.034, 126.035), 420 SE, SEL (126.034), 500 SE, SEL, 500 SE, SEL (126.036), 560 SE, SEL, 560 SE, SEL (126.038, 126.039), 560 SE, SEL (126.038) | 1979–1991 |
| MERCEDES-BENZ S-CLASS (W140) | 300 SE 2.8 (140.028), 300 SE, SEL/S320 (140.032, 140.033), 500 SE, SEL (140.050, 140.051), 600 SE, SEL (140.056, 140.057), S 280 (140.028), S 300 Turbo-D (140.135), S 320, S 350 Turbo-D (140.134), S 420 (140.042, 140.043), S 500 (140.050, 140.051), S 600 (140.056, 140.057) | 1991–1998 |
| MERCEDES-BENZ S-CLASS Coupe (C126) | 380 SEC (126.043), 420 SEC (126.046), 500 SEC (126.044), 560 SEC (126.045) | 1980–1991 |
| MERCEDES-BENZ S-CLASS Coupe (C140) | 500 SEC / CL 500 (140.070), SEC/CL 420 (140.063), SEC/CL 600 (140.076) | 1992–1999 |
| MERCEDES-BENZ SL (R107) | 280 SL (107.042), 300 SL (107.041), 350 SL (107.043), 380 SL (107.045), 420 SL (107.047), 450 SL (107.044), 500 SL (107.046) | 1971–1989 |
| MERCEDES-BENZ SL (R129) | 280 (129.058), 280 (129.059), 300 SL (129.060), 300 SL-24 (129.061), 320 (129.063), 320 (129.064), 500 (129.067), 500 (129.068), 500 SL (129.066), 600 (129.076), 600 SL (129.076) | 1989–2004 |
| MERCEDES-BENZ SL Coupe (C107) | 280 SLC (107.022), 350 SLC (107.023), 380 SLC (107.025), 450 SLC (107.024), 450 SLC 5.0 (107.026) | 1972–1985 |
| MERCEDES-BENZ SLK (R170) | 200 (170.435), 200 Kompressor (170.444), 200 Kompressor (170.445), 230 Kompressor (170.447), 230 Kompressor (170.449), 32 AMG Kompressor (170.466), 320 (170.465) | 1996–2004 |
Always verify compatibility with your vehicle before ordering.
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Common original equipment numbers linked to replacement-part pages.
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2-year warranty against manufacturing defects on all parts, counted from delivery. 14-day money-back guarantee if the part doesn't fit your vehicle. Delivery terms
We ship from the EU to 201 countries. Deliveries within the EU carry no customs charges; outside the UK and the EU, the destination country may charge import duties and taxes, paid on delivery. Delivery times and prices by country
Delivery times to EU countries (working days)
Austria 4–7, Belgium 4–7, Bulgaria 5–9, Croatia 5–9, Cyprus 4–19, Czechia 4–7, Denmark 4–8, Estonia 3–4, Finland 6–10, France 5–8, Germany 3–5, Greece 6–10, Hungary 4–7, Ireland 5–9, Italy 5–9, Latvia 2–3, Lithuania 2–3, Luxembourg 4–7, Malta 4–9, Netherlands 4–7, Poland 3–6, Portugal 6–10, Romania 4–8, Slovakia 4–7, Slovenia 4–8, Spain 6–9, Sweden 5–10