Thetford C2/C4/C400/C500 Cassette Waterfill Funnel Cap 1684816

Genuine replacement waterfill funnel cap for selected Thetford cassette toilets. This cap fits the waterfill funnel assembly used on compatible Thetford C2, C4, C400 and C500 cassette toilet models. Thetford part number: 1684816 Previous part number: 1684878 Fits: Thetford C2 toilets — last production in 2007 Thetford C4 toilets — last production in 2007 Thetford C402C / C402X Thetford C502C / C502X Please check your toilet model and existing part before ordering, as different Thetford cassette toilet ranges use different waterfill funnel parts. Need help checking compatibility? View our Thetford toilet parts diagrams or contact us before ordering and we’ll do our best to help identify the correct spare.