This is a drain plug for engine oil pans, also known as a sump drain plug. It comes with a seal. The plug has a length of 22.5mm and a diameter of 31mm. The spanner size required is a special tool. It suits a range of vehicles including Citroen C4, C4 Picasso, C5, Dispatch, DS4, DS5, DS7, Jumpy; Ford C-Max, Focus, Galaxy, Kuga, Mondeo, S-Max; Peugeot 308, 508, 3008, 5008, Expert, Traveller; and Vauxhall Vivaro C. Please note that listings are a guideline only and if you are unsure, please contact us. This part replaces OE numbers 9801444780 and 1871598. We are dedicated to ensuring the highest possible quality service to our customers. Payment is accepted via PayPal, with immediate payment preferred. All major credit cards are accepted through the PayPal system. Thank you for your purchase.