ALCO RS-32

{{Short description|A 2,000 hp diesel electric locomotive}}

{{Infobox locomotive

| name = ALCO RS-32

| powertype = Diesel-electric

| image = SP 7302 at Lenzen service track Feb 1966xRP - Flickr - drewj1946.jpg

| caption = Southern Pacific 7302 in February 1966

| builder = ALCO

| builddate = June 1961 - June 1962

| buildmodel = RS-32, specification DL-721

| totalproduction = 35

| aarwheels = B-B

| gauge = {{RailGauge|ussg}}

| primemover = ALCO 12-251C

| transmission = Electric

| poweroutput = {{convert|2000|hp|kW|abbr=on}}

| rpmrange =

| cylindercount = V12

| cylindersize = {{convert|9|x|10.5|in|mm|0|abbr=on}}

| locale = United States

}}

Designated as a "DL721" by ALCO, the 2,000 hp RS-32 was intended to compete with EMD's GP20 and GE's U25B locomotives.{{cite book |last1=Foster |first1=Gerald L. |title=A field guide to trains of North America |date=1996 |publisher=Houghton Mifflin |location=Boston |isbn=0-395-70112-0 |page=26}} Only 35 units were produced, with 25 units ordered by New York Central in 1961 and 10 units by Southern Pacific in 1962.{{cite web |last1=Sarberenyi |first1=Robert |title=RS32/36 Roster |url=http://www.trainweb.org/jaydeet/rs32_36.htm |website=www.trainweb.org |access-date=23 August 2021}} New York Central’s RS-32s were commonly seen in both road and local freight assignments. Southern Pacific's units were initially used in road service, but later settled into local freight service in San Francisco's "commute" territory. Here they were sometimes called upon to rescue stalled commuter trains. They later migrated across the system, ending their SP careers in Texas during the late 1970s with various other ALCo models.