Raceworks 1L radiator over flow tank raceworks Sale! from 15400 18400 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Black 1 Litre,- 2 x AN-4 O-Ring Ports. - Includes 2 x 3/8″ Barb adapters Height: 180mm, Width: 89mm, Depth: 89mm. Contains internal breather tube.