Big wing conversion for your 4x4 YB sump. Increases capacity to 6.5 litres. This includes supply of a used 4x4 YB sump so there is no need to send your own sump to us. All sumps are bead blasted to look like new prior to fabrication.

Big wing sump conversion for your 4x4 YB sump. After purchasing this please pack your sump up and send it to the address on our contacts page. Please make sure you include your contact details and return address. All sumps will be bead...

The greatly improved cornering, braking or acceleration that people are achieving these days with their cosworth YB engined cars means that they are likely to increase the forces on the oil in the sump beyond the limits that the standard sump was...

Purchase this with your sump to have an aluminium male -8 AN / JIC threaded fitting welded to your sump for your breather system.

Purchase this with your sump to have an aluminium male -10 AN / JIC threaded fitting welded to your sump for your breather system.

Purchase this with your sump to have an aluminium boss with a 1/8th NPT thread welded to your sump for an oil temperature sensor.