Durco / Flowserve Mark Series
Below is a listing of all the common wear parts for the Durco / Flowserve Mark series, grouped according to pump sizes. Parts listed below also cover equivalent series from other manufacturers, including the Summit Clark series. Durco part numbers are primarily used to identify parts, but parts are not Durco OEM.
Click here for an exploded view of pump to identify parts
Group 1
ITEM 122, Solid Shaft, 316SS, for Durco Mark 3 Group 1, X-Ref# 1K105-ZH - IN STOCK - CLICK HERE FOR PRICING
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Solid Shaft Kit, 316SS, for Durco/Flowserve Mark 3 Group 1, includes solid 316SS shaft, IB/OB bearings, IB/OB bearing isolators, bearing housing, bearing housing o-ring, locknut, lockwasher, retaining ring, all fully assembled, P/N KITSHAFT-C3G1-SOLID - IN STOCK - CLICK HERE FOR PRICING
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ITEM 503, Bearing, IB, for Durco/Flowserve Mark 3 Group 1, X-Ref# 1K120-SR, X-Ref# AY50719A-SR - IN STOCK - CLICK HERE FOR PRICING
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ITEM 502, Bearing, OB, for Durco/Flowserve Mark 3 Group 1, X-Ref# 1K121-SR, X-Ref# AY55389A-SR - IN STOCK - CLICK HERE FOR PRICING
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ITEM 333A, Laby Seal, IB, Carbon/PTFE, for Durco/Flowserve Mark 3 Group 1, X-Ref# LDE-1375-2835-1-1 - IN STOCK - CLICK HERE FOR PRICING
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ITEM 332A, Laby Seal, OB, Carbon/PTFE, for Durco/Flowserve Mark 3 Group 1, X-Ref# LDE-0875-1625-1-1 - IN STOCK - CLICK HERE FOR PRICING
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ITEM 351, 6/8" Case Gasket, NON-ASB, for Durco/Flowserve Mark 3 Groups 1 & 2, X-Ref# AC107-NA - IN STOCK - CLICK HERE FOR PRICING
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ITEM 351, 6/8" Case Gasket, Teflon, for Durco/Flowserve Mark 3 Groups 1 & 2, X-Ref# AC107-PTFE - IN STOCK - CLICK HERE FOR PRICING
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ITEM 412A, Impeller Gasket, Teflon/SR, for Durco/Flowserve Mark 3 Group 1, X-Ref# 1K104-TFR - IN STOCK - CLICK HERE FOR PRICING
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ITEM 496, O-Ring for Bearing Carrier, Buna, for Durco/Flowserve Mark 3 Group 1, X-Ref# 1Y201B-NBR - IN STOCK - CLICK HERE FOR PRICING
Group 2
ITEM 122, Solid Shaft, 316SS, for Durco Mark 3 Group 2, X-Ref# 2Y105-ZH - IN STOCK - CLICK HERE FOR PRICING
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ITEM 126, Shaft Sleeve, 316SS, for Durco/Flowserve Mark 3 Group 2, X-Ref# 2Z177-D4, X-Ref# AY38913AA-D4 - IN STOCK - CLICK HERE FOR PRICING
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Solid Shaft Kit, 316SS, for Durco/Flowserve Mark 3 Group 2, includes solid 316SS shaft, IB/OB bearings, IB/OB bearing isolators, bearing housing, bearing housing o-ring, locknut, lockwasher, retaining ring, all fully assembled, P/N KITSHAFT-C3G2-SOLID - IN STOCK - CLICK HERE FOR PRICING
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ITEM 503, Bearing, IB, for Durco/Flowserve Mark 3 Group 2, X-Ref# 2Z120-SR, X-Ref# Y21963A-SR - IN STOCK - CLICK HERE FOR PRICING
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ITEM 502, Bearing, OB, for Durco/Flowserve Mark 3 Group 2, X-Ref# 2K121-SR, X-Ref# AY55390A-SR - IN STOCK - CLICK HERE FOR PRICING
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ITEM 333A, Laby Seal, IB, Carbon/PTFE, for Durco/Flowserve Mark 3 Group 2, X-Ref# LSE-1875-2625-1-1 - IN STOCK - CLICK HERE FOR PRICING
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ITEM 332A, Laby Seal, OB, Carbon/PTFE, for Durco/Flowserve Mark 3 Group 2, X-Ref# LDE-1125-2000-1-1 - IN STOCK - CLICK HERE FOR PRICING
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ITEM 351, 6/8" Case Gasket, NON-ASB, for Durco/Flowserve Mark 3 Groups 1 & 2, X-Ref# AC107-NA - IN STOCK - CLICK HERE FOR PRICING
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ITEM 351, 6/8" Case Gasket, Teflon, for Durco/Flowserve Mark 3 Groups 1 & 2, X-Ref# AC107-PTFE - IN STOCK - CLICK HERE FOR PRICING
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ITEM 351, 10" Case Gasket, NON-ASB, for Durco/Flowserve Mark 3 Group 2, X-Ref# AH107-NA - IN STOCK - CLICK HERE FOR PRICING
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ITEM 351, 10" Case Gasket, Teflon, for Durco/Flowserve Mark 3 Group 2, X-Ref# AH107-PTFE - IN STOCK - CLICK HERE FOR PRICING
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ITEM 351, 13" Case Gasket, NON-ASB, for Durco/Flowserve Mark 3 Group 2, X-Ref# AS107-NA - IN STOCK - CLICK HERE FOR PRICING
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ITEM 351, 13" Case Gasket, Teflon, for Durco/Flowserve Mark 3 Group 2, X-Ref# AS107-PTFE - IN STOCK - CLICK HERE FOR PRICING
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ITEM 412A, Impeller Gasket, Teflon/SR, for Durco/Flowserve Mark 3 Group 2, X-Ref# 2Z104-TFR - IN STOCK - CLICK HERE FOR PRICING
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ITEM 496, O-Ring for Bearing Carrier, Buna, for Durco/Flowserve Mark 3 Group 2, X-Ref# GL223-NBR - IN STOCK - CLICK HERE FOR PRICING