*Please do not buy this seal kit until you have read this entire description and followed through with removing the old seal from your pan to determine if there is damage that will prevent a new seal from seating correctly. This "Heavy Duty Pan Seal Kit" *Includes: 1 Heavy Duty Seal, 1 Stainless Steel Flat Washer, 2 Stainless Steel Snap Rings, and 1 Stainless Steel E-clip. *Installation instructions with illustration included. *You will need Snap Ring Pliers to remove or install snap rings. will fit the bread machine model listed below: Oster Breadmaker Automatic Dough and Bread Maker Model Number: CKSTBRTW20 If you have any questions, please ask before you "Buy." THANK YOU! Bread Machine Parts Finder ***Important message about replacing the red seal in the pan: *(If you do not see a visible red seal inside the pan, then please do not attempt to install this seal kit.) *(Only fits pans that have the visible red pan seal from top side.) ***Warning! Before you attempt to install a new seal, you should always check for thin cracks around the rivet heads on the inside bottom of the pan. If you find a crack in the pan, then you will know the pan is leaking through that crack and is not repairable. If a rivet has loosened, appears to be coming out, or you can move the rivet head with your fingertip, then the pan will leak through that point. A new seal will not solve that problem. If you do not find any cracks or loose rivets, then continue reading and following through with the repair. *(If you do not see a visible red seal inside the pan, then please do not attempt to install this seal kit.) *(Only fits pans that have the visible red pan seal from top side.) *(You will need Snap Ring Pliers to remove and install the Snap Rings.) *(You may need an E-clip installation tool to install the E-clip.) ***If your pan?s shaft is still secure, then you may push the seal out by removing the Snap Ring Wing Nut Impeller from the bottom of the shaft. Take caution, apply minimal force to push the shaft up and out the top of the pan, using a hammer and a punch. This action will push-out the seal. If the shaft will not push through while using minimal force, then you may not be able to repair the pan. (Applying excessive force may damage the pan beyond repair.) In this case, you may want to consider purchasing a new pan, if available. ***If the shaft has already fallen out the bottom, then you will need to pry out the old seal using an old double ended can opener / bottle opener. Place a business card or credit card in the bottom of the pan to prevent scratching when using the can opener to pry out the old seal. Place the pointed end of the opener into the center hole of the seal and gently pry upward moving from side to side until the seal pops out. *Please note that the seal has an inner steel frame. If all you have removed so far is a thin piece of rubber, then you will need to remove the rest of the seal known as the inner frame. It is important that you be very careful when removing the old seal. If the hole the seal is in becomes swelled, warped, chipped, or scratched then the new seal may not seat or seal successfully. ***I strongly recommend removing the old seal before purchasing a new seal so that you can determine if the pan is in fact repairable. Please remove the seal first and use a magnifying glass to inspect the hole for chipped off non-stick coating, pitting, corrosion, dings, dents, swelling, or warping. If any of the damage above is present, then please do not order a seal. I can guarantee that it will not seat or seal correctly. ***Please be aware that each time you replace the seal it may not last as long as the previous seal did, because the sleeve bearing in the bottom of the pan continues to wear, which causes more wobble that creates more stress for the seal to bear. The thin washer included in the seal kit replaces the Nylon, Teflon, or Fiber washer that was placed under the E-clip on the drive shaft. You will re-use any metal washers found on the bottom end between the sleeve bearing and the wing nut impeller.