Oldsmobile Water Pump Casting Numbers

Part No., Casting No., Dimensions, Applications

Oldsmobile Water Pump Casting Numbers


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YEARCUBIC IN.COMMENTSHEIGHTPART NO.CASTING NO.
1961215F-854.2813894571192875
62-63215F-85
A.C. or Spec. Cooling
4.2813894571192875
49-502573.35382690555717
75-822601 Outlet5.95231462412265
2602 Outlet5.95556283412265
260w/o A.C.5.57231886413307
49-533033.35382690555717
77-87305 6.93474029376444
305Starfire5.8359913354495
80-883071 Outlet5.95231462412265
3072 Outlet5.95556283412265
307w/o A.C.5.57231886413307
54-56324with A.C.exc. F-853.35382691583093
324with A.C.
exc. F-85
3.35382691583093
324w/o A.C.3.35382690555717
65-67330with A.C., H.D. Cooling5.09388183384786
330w/o A.C. or H.D. Cooling5.09388182384783
19643305.09384471382188
78-85350NDiesel5.95231462412265
350N2 Outlet5.95556283412265
75-81350Nw/o A.C.5.57231886413307
1982350NEarly5.57231886413307
68-70350with A.C.5.57230337400296
350w/o A.C.5.09388182384783
71-72350with A.C.
or H.D. Cooling
5.95231073407586
350w/Air Pump5.57231066 (1)408329
350w/o A.C., H.D. Cooling,
O.A.I. or Perf. Axle
5.09231065408328
73-80350R1 Outlet5.95231462412265
350R2 Outlet5.95556283412265
350Rw/o A.C.5.57231886413307
75-76350Omega
(w/Buick 350)
4.5512470791251336
57-60370with A.C.3.35382691583093
w/o A.C.3.35382690555717
59-62394with A.C.3.35382691583093
394w/o A.C.3.35382690555717
63-643944.03587538585761
65-67400with A.C. or HD Cooling5.09388183384786
400w/o A.C.5.09388182384738 (2)
68-69400with A.C.5.57230337400296
400w/o A.C.5.09388182384783
1975400(w/Pontiac engine
in full-size cars)
4.47488377482168
77-79403w/o A.C.5.57231886413307
403A.C. 1 Outlet6.07231462412265
403A.C. 2 Outlet6.07556283412265
65-67425with A.C.5.07388183384786
425w/o A.C.5.07388182384783
68-70455with A.C.5.57230337400296
455w/o A.C.5.07388182384783
1970455Toronado6.07230901404562
71-72455All with A.C. or HD Cooling
(including W-30 w/AC
6.0723173407586
455w/Air Pump5.57231066 (1)408329
455w/o A.C., H.D. Cooling,
O.A.I. or Perf. Axle
5.07231065408328
73-76455A.C. 1 Outlet6.07231462412265
455A.C. 2 Outlet6.07556283412265
455w/o A.C. or HD Cooling5.57231886413307


NOTES
(1) - PN 231066 is listed in the Oldsmobile Master Parts Catalog (Rev. Feb. 1973) as follows:
  • 71-72 3200, 3600, 4200, 4400 O.A.I. or Perf. Axle, exc. A.C or H.D. Cooling
  • 71-72 5400, 6400, 6800, 98 exc. A.C. or H.D. Cooling
The casting number (408329) associated with this PN is shown in the Mondello Tech Reference Manual (Vol. 3) as follows:
  • All W-30 and/or 3.73 rear end (exc. W30 w/AC or HD Cooling)
(2) - The Mondello Tech Reference Manual (Vol. 3) shows this casting number as being applicable to '65-'67 400 w/o AC or HD Cooling


Special note on water pump casting numbers:
Numbers 413307 may appear as 418807 or 412265 may appear as 412285 etc. Castings are rarely perfect.
Casting numbers 398681, 400289, 404584 & 404847 can't be verified in any G.M. document at this time. Also samples have not been found to be verify origin. However, the Mondello Tech Reference Manual (Vol. 3) shows these casting numbers as follows:
YEARAPPLICATIONCASTING NUMBER
68-69400 & 455 W-30, W-32 or Hurst/Olds w/o AC or HD Cooling398681
68-69400 & 455 W-30, W-32 or Hurst/Olds w/ AC or HD Cooling400289
70455 All w/o AC, HD Cooling or W-30404584
70455 All w/ AC, HD Cooling or W-30404847


ADDITIONAL CASTING NUMBERS
The following casting numbers (not shown above) are included in the Mondello Tech Reference Manual (Vol. 3).
YEARENGINEAPPLICATIONCASTING NUMBER
68-69400-455W-30, W-32 or Hurst/Olds w/AC or HD Cooling400268
68-69400-455W-30, W-32 or Hurst/Olds w/ AC or HD Cooling400289
73-74AllAll w/AC412285
75400All482138
75-80AllAll w/AC or Towing Pkg. (including 350 Diesel)412265
75-79AllAll w/o AC, Towing Pkg. or HD Cooling (including 350 Diesel)418807
76-85307, 350, & 455All w/AC or HD Cooling412265
76350 & 455All w/AC or HD Cooling407586
77-85305 & 350All including export to Canada376444


The Oldsmobile Master Parts Catalog (Rev. Feb. 1973) also lists the following V8 water pumps. No additional information on these is available.
YEARAPPLICATIONPART NUMBER
63-64 394 Engine, exc. A.C., Spec. Cooling 382692
63-64 394 Engine, with A.C., Spec. Cooling 382693
68-69 V8 with A.C., H.D. Cooling, O.A.I. 230900
68-69 V8 exc. A.C., H.D. Cooling 230899
68-69 4400 T.H. 400 Perf. Engine 230900
70 F-85 V8, Tor. exc. A.C., H.D. Cooling or Rad., O.A.I. 230899
70 F-85 V8, A.C., H.D. Cooling or Rad., O.A.I. 230900
70 5400, 6400, 6600, 98 230900
70 Tor., A.C. or H.D. Cooling 230901
73 V8 exc. A.C. or H.D. Cooling 231461
73 V8 A.C. or H.D. Cooling 231462



TECHNICAL NOTEHigh flow water pumps may be visually identified because the impeller fins are larger and visible rather than being hidden by the impeller. Standard and high flow impellers are interchangeable between pump castings.

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