Deflection Guide Pulley V Ribbed Belt HART 378 023
Deflection Guide Pulley V Ribbed Belt HART 378 023. Fits 38 car models (MERCEDES-BENZ). Replaces 11 OE numbers.

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Specification. From the manufacturer's data.
- Brand
- HART
- Diameter [mm]
- 80.00 mm
- Width [mm]
- 26.00 mm
- Category
- Deflection Guide Pulley V Ribbed Belt
- MPN
- 378 023
- SKU
- 5251-378 023
- GTIN / EAN
- 5902198811763
- What's included
- 1x Deflection Guide Pulley V Ribbed Belt
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”.
- CHRYSLER0 4862 625AA
- MERCEDES-BENZ272 202 04 19
- MERCEDES-BENZ272 202 06 19
- MERCEDES-BENZ272 202 07 19
- MERCEDES-BENZ272 202 14 19
- CHRYSLER6 8020 889AA
- CHRYSLER6 8052 717AA
- MERCEDES-BENZA 272 202 04 19
- MERCEDES-BENZA 272 202 06 19
- MERCEDES-BENZA 272 202 07 19
- MERCEDES-BENZA 272 202 14 19
Where this part fits
Original-fit position for OE A2722020419.

Compatible cars. MERCEDES-BENZ, 38 models.
Matched from the manufacturer's data.
| Model | Engines | Years |
|---|---|---|
| MERCEDES-BENZ38 models | ||
| MERCEDES-BENZ C-CLASS (W203) | C 280 (203.054), C 280 4-matic (203.092), C 350 (203.056), C 350 4-matic (203.087) | 2000–2007 |
| MERCEDES-BENZ C-CLASS (W204) | C 230 (204.052), C 230 4-matic (204.085), C 280 (204.054), C 280 4-matic (204.081), C 300 (204.054), C 300 4-matic (204.081), C 350 (204.056), C 350 4-matic (204.087), C 350 CGI (204.065) | 2007–2015 |
| MERCEDES-BENZ C-CLASS Coupe (CL203) | C 230 (203.752), C 350 (203.756) | 2001–2011 |
| MERCEDES-BENZ C-CLASS T-Model (S203) | C 230 (203.252), C 280 (203.254), C 280 4-matic (203.292), C 350 (203.256), C 350 4-matic (203.287) | 2001–2007 |
| MERCEDES-BENZ C-CLASS T-Model (S204) | C 230 (204.252), C 280 (204.254), C 300 (204.254), C 350 (204.256) | 2007–2014 |
| MERCEDES-BENZ CLC-CLASS (CL203) | CLC 230 (203.752), CLC 350 (203.756) | 2008–2011 |
MERCEDES-BENZ32 more models
| Model | Engines | Years |
|---|---|---|
| MERCEDES-BENZ CLK (C209) | CLK 280 (209.354), CLK 350 (209.356), CLK 500 (209.372) | 2002–2010 |
| MERCEDES-BENZ CLK Convertible (A209) | CLK 280 (209.454), CLK 350 (209.456), CLK 500 (209.472) | 2002–2010 |
| MERCEDES-BENZ CLS (C219) | CLS 280 (219.354), CLS 300 (219.354), CLS 350 (219.356), CLS 350 (219.357), CLS 500 (219.372) | 2004–2011 |
| MERCEDES-BENZ E-CLASS (W211) | E 230 (211.052), E 280 (211.054), E 280 4-matic (211.092), E 350 (211.056), E 350 4-matic (211.087), E 350 CGI (211.057), E 500 (211.072), E 500 4-matic (211.090) | 2002–2009 |
| MERCEDES-BENZ E-CLASS (W212) | E 300 (212.054), E 350 (212.056), E 350 4-matic (212.087), E 350 CGI (212.057), E 500 (212.072), E 500 4-matic (212.090) | 2009–2016 |
| MERCEDES-BENZ E-CLASS Convertible (A207) | E 350 (207.456), E 350 CGI (207.457), E 500 (207.472) | 2010–2016 |
| MERCEDES-BENZ E-CLASS Coupe (C207) | E 350 (207.356), E 350 CGI (207.357), E 500 (207.372) | 2009–2016 |
| MERCEDES-BENZ E-CLASS T-Model (S211) | 350 CGI (211.257), E 230 T (211.252), E 280 T (211.254), E 280 T 4-matic (211.292), E 350 T (211.256), E 350 T 4-matic (211.287), E 500 T (211.272), E 500 T 4-matic (211.290) | 2003–2009 |
| MERCEDES-BENZ E-CLASS T-Model (S212) | E 300 (212.254), E 350 (212.256), E 350 4-matic (212.287), E 350 CGI (212.257), E 500 (212.272) | 2009–2016 |
| MERCEDES-BENZ G-CLASS (W463) | G 500 (463.222, 463.236, 463.237, 463.242) | 1989–2018 |
| MERCEDES-BENZ G-CLASS Cabrio (W463) | G 500 (463.202) | 1989–2018 |
| MERCEDES-BENZ GL-CLASS (X164) | GL 450 4-matic (164.871), GL 500 4-matic (164.886) | 2006–2012 |
| MERCEDES-BENZ GLK-CLASS (X204) | 280 4-matic (204.981), 300 4-matic (204.981), 350 (204.956), 350 4-matic (204.987) | 2008–2015 |
| MERCEDES-BENZ M-CLASS (W164) | ML 350 4-matic (164.186), ML 500 4-matic (164.172) | 2005–2012 |
| MERCEDES-BENZ R-CLASS (W251, V251) | R 280 (251.054, 251.154), R 280 4-matic (251.062), R 300 (251.054, 251.154), R 350 (251.056, 251.156), R 350 4-matic (251.065, 251.165), R 500 4-matic (251.072, 251.172) | 2005–2017 |
| MERCEDES-BENZ S-CLASS (W221, V221) | S 280 (221.054), S 300 (221.054, 221.154), S 350 (221.056, 221.156), S 350 4-matic (221.087, 221.187), S 450 4-matic (221.084, 221.184), S 450, S 450 L (221.070, 221.170), S 500 (221.071, 221.171), S 500 4-matic (221.086, 221.186) | 2005–2013 |
| MERCEDES-BENZ S-CLASS Coupe (C216) | CL 500 (216.371), CL 500 4-matic (216.386) | 2006–2013 |
| MERCEDES-BENZ SL (R230) | 280 (230.454), 300 (230.454), 350 (230.456), 350 (230.458), 500 (230.471) | 2001–2012 |
| MERCEDES-BENZ SLK (R171) | 280 (171.454), 300 (171.454), 350 (171.456), 350 (171.458) | 2004–2011 |
| MERCEDES-BENZ SPRINTER 3-t Bus (B906) | 224 (906.713) | 2006–2019 |
| MERCEDES-BENZ SPRINTER 3-t Platform/Chassis (B906) | 224 (906.113, 906.213) | 2006–2018 |
| MERCEDES-BENZ SPRINTER 3-t Van (B906) | 224 (906.613) | 2006–2018 |
| MERCEDES-BENZ SPRINTER 3,5-t Bus (B906) | 324 (906.733, 906.735) | 2006–2020 |
| MERCEDES-BENZ SPRINTER 3,5-t Platform/Chassis (B906) | 324 (906.133, 906.135, 906.233, 906.235, 906.132,... | 2006–2018 |
| MERCEDES-BENZ SPRINTER 3,5-t Van (B906) | 324 (906.633, 906.635, 906.637) | 2006–2020 |
| MERCEDES-BENZ SPRINTER 4,6-t Platform/Chassis (B906) | 424 (906.153, 906.155, 906.253, 906.255) | 2006–2020 |
| MERCEDES-BENZ SPRINTER 4,6-t Van (B906) | 424 (906.655, 906.657, 906.653) | 2006–2020 |
| MERCEDES-BENZ SPRINTER 5-t Platform/Chassis (B906) | 524 (906.153, 906.155, 906.253, 906.255) | 2006–2020 |
| MERCEDES-BENZ SPRINTER 5-t Van (B906) | 524 (906.653, 906.655, 906.657) | 2006–2020 |
| MERCEDES-BENZ VIANO (W639) | 3.5 (639.811, 639.813, 639.815) | 2003– |
| MERCEDES-BENZ VITO / MIXTO Van (W639) | 126 (639.601, 639.603, 639.605) | 2003– |
| MERCEDES-BENZ VITO Bus (W639) | 126 (639.701, 639.703, 639.705) | 2003– |
Always verify compatibility with your vehicle before ordering.
More about this part. Related categories and similar parts.
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Common OE numbers for this part
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

