One (1) New Aftermarket Replacement Sediment Bowl Gasket and Screen Fits Allis Chalmers Models: B, C, CA, D10, D12, D17 This is the cork gasket that measures 2-1/8" outside diameter. The screen is also included. This Aftermarket Part Is Made to Meet or Exceed Manufacturer Specifications OEM Numbers Are Provided for Reference Only. Please Verify Fit Prior To Ordering. One (1) New Aftermarket Replacement Sediment Bowl Gasket and Screen Fits Allis Chalmers Models: B, C, CA, D10, D12, D17 This is the cork gasket that measures 2-1/8" outside diameter. The screen is also included. Replaces Part Numbers: 49923D, 355888R2