The rotating group of a piston pump is comprised of a cylinder barrel that is rotated by a shaft; seven or nine pistons installed in the cylinder block with brass shoes attached. As the cylinder block turns the pistons travel in and out of the bore of the block. This is how the flow is generated. During service it is suggested that if pistons are to be replaced all should be changed. At CTP, we sell all these parts individually or as a complete group. These groups are listed below:

Engine Model/ApplicationBarrel Part No.Piston Part No.
345B, 385C, 120H, 143H15591361559112 (9)
120H, 135H, 140H15889662959689 (9) SET
12G, 130G, 140G9J86608J2022 (9)
12G, 14G, D6H9T77749T7765 (9)
14G, 16G, 225, 2459J24171U2738 (9)
D8R, D9R9T84489T8452 (9)
215, 215B9J35228J2037 (9)
225B, 793D9T33709T3371 (7)
307C, 4M4019499871076666 (9) SET
318B17099591858979 (9) SET
318BL17099601858979 (9) SET
320, 320B, 320L1184053Included w/ Barrel
320, 320B, 320L1184054Included w/ Barrel
320, 320L5I86315I8632 (9)
320B, 325B08747830995713 (7)
320B, 322C, 325D13471341475860 (9) SET
320C, 320CL17334961915709 (9) SET
320C, 320CL17334981915709 (9) SET
322C, 325C19483711884210 (9) SET
322C, 325C19483741884210 (9) SET
325, 325L7Y42094I8834
325, 325L, 330L11111164I6448 (9) SET
325B13367771475860 (9) SET
330, 330L5I43115I8401 (7)
330, 330L08562595I4171 (9) SET
330C, 345B, 522B18840972835980 (7)
330D, 345C24787102959691 (9) SET
Engine Model/ApplicationBarrel Part No.Piston Part No.
336F, 340F, 349D18841643349982 (9) SET
345B17099762959687 (9)
350, 350L7I81797I8178 (9) SET
350, 350L7I81807I8178 (9) SET
416D, 420D, 430D19602266E6151 (9)
416E, 422E, 428E16833801683384 (9)
426, D49T30269T3018 (9)
426B, D11R6E40076E6151 (9)
446B9T77579T7761 (9) SET
446B, 545C11653051165298 (9)
623F, 623G9T16871656969 (7)
834K, 836K , 962M, D6T26678362334880 (9)
914G, 939C, D4C13318481261400 (9)
938G9T82509T8249 (9)
938H, 962H, 966H, 972H25600831884210 (9) SET
963D, D7E, D8T27175996E4358 (9)
980M, 982M28616741970079 (9)
992, 9949J86674T3122 (9)
924F, 928G, 988F9T38639T3868 (9) SET
D6H, D6H LGP9T77299T7731 (9)
D7R14108289T4180 (9)
627G, D8R18384466E4358
E180, E2404I94724I9469 (SET)
E200B, EL200B09963420963989 (9) SET
E180, E2404I94730963989 (9) SET

Number in parenthesis () after the piston part number indicates the quantity of pistons per barrel needed.
* Other part no. not included in the list are available. Please contact your sales representative if you have any questions. Part Numbers are used for reference purposes only.