Excavator Starter Motors

3103305 24V 11-Tooth 39MT Starter Motor for Cummins QSM11, QSX15 and QST30

Q: What numbers are documented for 3103305?

Primary Part Number: 3103305. Independent Catalog Number: 6819N. Cataloged Manufacturer Family: DELCO. Industry Catalog Number: 6212 / 6819 / 6829. Cataloged Replacement-Reference Family: Caterpillar 207-1564, Cummins 3103305, Delco 19011507, 19011522, 8200034, 8200041, 8200410, Leece-Neville 7400M, 7400MA, 7400MC, 7402MA, M105702, Original Reference Number E6141533, Perkins Engine CH12807, Prestolite M105702, M105R3502SE, MS1-401A. Related Catalog Family: 6370N. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 3103305 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

3103305 24V 11-Tooth 39MT Starter Motor for Cummins QSM11, QSX15 and QST30, OEM/reference 3103305, Starter Motor, product view 1

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OEM / reference3103305

SpecificationStarter Motor

Catalog ID77384483

Product Type: Starter Motor
Voltage: 24 V
Pinion Teeth: 11
Rotation: CW
Design Family: PLGR
Manufacturer Series: 39MT
Condition: New replacement part
Rated Power: Not specified; published ratings conflict. Confirm the original starter nameplate.

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Part-number relationships

Relationship	Reference family	Number
Primary Part Number	Exact reviewed reference	3103305
Independent Catalog Number	Catalog cross-reference number; not an OEM number	6819N
Cataloged Manufacturer Family	Manufacturer family stated by the official record	DELCO
Industry Catalog Number	Independent cross-reference only	6212 / 6819 / 6829
Cataloged Replacement-Reference Family	Official grouped replacement family; confirm manufacturer context and suffix before substitution	Caterpillar 207-1564, Cummins 3103305, Delco 19011507, 19011522, 8200034, 8200041, 8200410, Leece-Neville 7400M, 7400MA, 7400MC, 7402MA, M105702, Original Reference Number E6141533, Perkins Engine CH12807, Prestolite M105702, M105R3502SE, MS1-401A
Related Catalog Family	Related listing only; not asserted as a direct interchange	6370N

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

3103305

Manufacturer number

DELCO

Related assembly

6370N

Other documented relationship

6819N
6212 / 6819 / 6829
Caterpillar 207-1564, Cummins 3103305, Delco 19011507, 19011522, 8200034, 8200041, 8200410, Leece-Neville 7400M, 7400MA, 7400MC, 7402MA, M105702, Original Reference Number E6141533, Perkins Engine CH12807, Prestolite M105702, M105R3502SE, MS1-401A

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

Starter Motor

Category: Excavator Starter Motors
Catalog ID: 77384483
Photo views: 5

Before ordering

Confirm these details

Confirm voltage and power rating against the original starter nameplate.
Compare mounting-hole pattern, flange position and overall body orientation.
Confirm pinion tooth count and rotation where those values are specified.
Verify the engine model and machine serial range before ordering.

Machine fitment

Compatible model references

33 model references

Allis Chalmers published applications: 6138 (1985) · Allis Diesel / 670 (1985) · Allis Diesel / 685 (1985) · Allis Diesel / 945 (1985-1986) · 25000 Allis Dsl.
Case published applications · group 1: 1000 Travelift (1985-1994) · DD 4-71 / 40D (1985-1986) · DD 4-71 / 45DR (1986-1995) · DD 4-71 / 45R (1985-1986) · DD 4-71 Diesel / 50D (1985-1986) · DD 4-71 / 50LC (1985-1986) · DD 4-71 Diesel / 650CA Travelift (1985-1994) · DD 4-71 / 800 Travelift (1985-1994) · DD 4-71
Case published applications · group 2: 980 (1985-1986) · DD 4-71 / STX375 (2004-2007) · Cummins QSX, 15.0L / STX500 (2004-2007) · Cummins QSX, 15.0L / STX500QT (2004-2007) · Cummins QSX, 15.0L
Caterpillar Ag. & Ind. published applications · group 1: 16G (1985-1995) · Cat. 3406 / 245 (1985-1988) · Cat. 3406 / 245D (1989-1995) · Cat. 3406 / 3406 (1985-2000) · 6cyl, 893ci, 14.6L / 3408 (1986-1997) · 8cyl, 1099ci, 18.0L / 3412 (1986-1997) · 12cyl, 1649ci, 27.0L / 3508 (1986-1993) · 8cyl, 2105ci, 34.5L / 3512 (1986-1993) · 12cyl, 3158ci, 51.8L
Caterpillar Ag. & Ind. published applications · group 2: 3516 (1986-1993) · 16cyl, 4210ci, 69.0L / 375L (1989-1992) · Cat. 3406 / 375LME (1989-1992) · Cat. 3406 / 375MH (1989-1992) · Cat. 3406 / 621B (1985-1986) · Cat. 3406 / 621E (1986-1993) · Cat. 3406 / 623B (1985-1986) · Cat. 3406 / 623E (1986-1993) · Cat. 3406
Caterpillar Ag. & Ind. published applications · group 3: 776B (1984-1985) · Cat. 3508 / 777B (1984-1985) · Cat. 3508 / 824C (1985-1999) · Cat. 3406 / 825C (1985-1996) · Cat. 3406 / 825G (1995-1996) · Cat. 3406 / 826C (1985-1996) · Cat. 3406 / 826G (1995-1996) · Cat. 3406 / 980C (1985-1992) · Cat. 3406
Caterpillar Ag. & Ind. published applications · group 4: 980F (1991-1996) · Cat. 3406 / 992C (1987-1988) · Cat. 3408 / D8N (1986-1996) · Cat. 3406 / IT14B (1989-1993) · Cat. 3114; Cummins Diesel
Champion published applications: 740A (1985-1994, 1991-1994, 1997-2006) · Cummins L-10; Cummins M11 / 750 (1987-1994) · Cummins L-10 / 750A (1987-1994) · Cummins L-10 / 760 (1985-1991) · Cummins L-10 / 780 (1985-1991) · Cummins L-10 / 780A (1986-1994) · Cummins L-10
Clark published applications: 125C (1985-1986) · Cummins VT-555; DD 6V-71N Diesel / 175B (1985-1986) · Cummins N14; Cummins NTA-855C Diesel; DD 8V-71 Diesel / 275B (1985-1986) · Cummins N14; Cummins NTA-855C / 280 (1985-1986) · Cummins N14; Cummins NTA-855C; DD 8V-71N / 75C (1985-1986) · DD 4-71N Diesel
Cummins Engines published applications: 855 SERIES (1983-1985) · 14.0L / L SERIES (1983-1993, 1991-1993) · 14.0L; 10.0L / V Series (1983-1985) · 9.1L
Cummins Marine Engines published applications: V903 (1985) · 8cyl, 903ci, 14.8L
Dresser published applications: 560B (1986-1993) · KT-1150 Cummins
ERF - Europe published applications: EC11 (1992-2000) · Cummins M11 Engine / ECS (1993-2001) · Cummins M11 Engine / ECT (2003-2013) · Cummins M11 Engine / ECX (1993-2001) · Cummins M11 Engine
Fiat-Allis published applications: 14C (1984-1985) · 8205 Diesel / 14CL (1984-1985) · 8205 Diesel / 14CLGP (1985) · 8205 Diesel / 14CTA (1984-1985) · 8205 Diesel / 260B (1985) · 25000 Allis Dsl. / 261B (1985) · 25000 Allis Dsl. / FL-14C (1984-1985) · 8205 Diesel
Foden - Europe published applications: Alpha (1997-2006) · Cummins ISMe Engine
Freightliner published applications: All Models (By Engine) - Prior to 1970 (1963-1969) · Cummins Engines / Classic (1990-1992) · DD 60 Series / FL, FLC 112 / 120 (1979-1981, 1979-1984, 1982-1987, 1985, 1986-1992) · Cummins NTA / NTC; Cummins V-903; Cummins 855 / BC III; Caterpillar 3406; DD 6V-92; DD 60 Series / FLD 112 / 120 (1986-1992) · DD 60 Series / FLT Series (1983-1984, 1983-1987, 1985-1987, 1985) · Cummins V-903; Cummins 855 / BC III; DD 6V-92; Caterpillar 3406 / WF (C,P,T) Series (1970-1978) · Allis Chalmers 21000; Cummins NH Engines; Cummins V-903; DD 8V-71
Grove Mfg. published applications · group 1: 300 / 475 (1985-1987) · Cummins NTC / RT-58B (1985) · Cummins V378 / RT-625 (1985) · Cummins V504C / RT-980 (1985-1987) · Cummins NT855 / TM-1075 (1985-1986, 1985-1987) · Cat. 3406; Cummins NTC-350; DD 8V-71T / TM-1150 (1985-1986, 1985-1987) · Cat. 3406; Cummins NTC-350; Cummins V555; DD 8V-71TA / TM-1400 (1985-1987) · Cummins V555C / TM-875 (1985-1986, 1985-1987) · Cat. 3406; Cummins NTC; DD 8V-71N
Grove Mfg. published applications · group 2: TMS-250 (1985-1987) · Cummins VT225 / TMS-865 (1985-1987) · Cummins NTC
Hyundai published applications: HL770 Series (1996-2006) · Cummins Diesel / R360-3 (1996-2006) · Cummins Diesel
International published applications: 2200-2275 Series (1984-1987) · Cummins L-10; DD 6V-92 / 2300-2375 Series (1984-1987) · Cummins L-10 / 2574 / 2575 Series (1984-1987) · Cummins L-10 / 2674 / 2675 Series (1984-1987, 1985-1989) · Cummins L-10; DD 6V-92 / Paystar (1984-1985, 1984-1989) · DD 8V-71; Cummins Engines; DD 6V-71; DD 6V-92; DD 8V-92 / S Series (1984-1987, 1984, 1985-1987) · DD 6V-71; DD 6V-92; DD 8V-71; Cummins L-10 / Transtar (1975-1987, 1980-1987, 1984-1987, 1985-1987) · Caterpillar 3406; Caterpillar 3408; DD 6V-92; DD 8V-71; DD 8V-92; Cummins Engines ;Exc. KT
Kenworth published applications · group 1: All Models (By Engine) - Prior to 1975 (1961-1974, 1962-1967) · Cummins Engines; Detroit Diesel Engines / C500 Series (1973-1979, 1973-1981, 1980-1983, 1980-1985, 1980-1994, 1982-1983, 1984-1985, 1984-1994, 1986-1994) · Cummins NH; Caterpillar 3406; DD 6V-92; Cummins F; Cummins NTC; DD 8V-71; DD 8V-92; Cummins L-10; Cummins M-11 / K100 Series (1973-1979, 1973-1981, 1980-1983, 1980-1985, 1982-1983, 1984-1985, 1986-1990, 1986-1994) · Cummins NH; Caterpillar 3406; DD 6V-92; Cummins F; DD 8V-71; Cummins L-10; Cummins NTC-855; DD 8V-92; Cummins N-14; Cummins M-11 / L700 Series (1980-1981, 1980-1983, 1980-1985, 1982-1983, 1984-1985, 1984-1994) · Caterpillar 3406; DD 6V-92; Cummins F Engine; Cummins NTC Engines; DD 8V-71; DD 8V-92; Cummins 855 / T2000 Series (1986-1994) · Caterpillar 3406; Cummins M-11; Cummins N-14 / T400 Series (1986-1988, 1986-1994) · Cummins L-10; Cummins M-11 / T450 Series (1986-1988, 1986-1994) · Cummins L-10; Cummins M-11 / T600 Series (1986-1994) · Cummins M-11; Cummins N-14
Kenworth published applications · group 2: T800 Series (1986-1993, 1986-1994) · Cummins M-11; Cummins N-14 / W900 Series (1973-1979, 1973-1981, 1980-1983, 1980-1985, 1982-1983, 1984-1985, 1986-1993) · Cummins NH Engines; Caterpillar 3406; DD 6V-92; Cummins F Engine; DD 8V-71; Cummins NTC-855; DD 8V-92; Cummins M-11
Kobelco published applications: SK400LC-IV (1995-1998) · 6D22TC Mitsubishi Diesel; Cummins M11
Link-Belt published applications: LS4300 (1988-2003) · Cummins M11
Mack published applications · group 1: CH Series (1988-1999) · Mack Engines / CL Series (1990-1999) · Mack Engines / CM Series (1984-1990, 1986-1989) · Cummins 14.0L; Mack E6 Series; Mack EM7; Mack RVI; Mack E5 / EC5 / DM / DMM Series (1967-1971, 1972-1981, 1972-1983, 1984-1990, 1984-1998, 1984-1999) · All Engines; Cummins N / NT; Mack Engines; Mack RVI; Cummins 14.0L; Cummins 6C 8.3L / F / FL / FS Series (1963-1971, 1972-1983, 1981-1983, 1984-1988, 1984-1990) · All Engines; Cummins NTA / NTC; Cummins Super 250; Mack Engines; Cummins V-903; DD 8V-71 (T); Cummins VT-903; DD 8V-71 (N) / FCM Series (2000-2009) · Mack Dsl. 12.0L / FDM Series (1987-1998, 1988-1998, 1988-1999) · Cummins 6C 8.3L; Cummins N14 14.0L; Mack Engines / LE (1995-2002) · 11.9L 728cid
Mack published applications · group 2: MC Series (1980-1983, 1984-1994) · Mack Engines / MH Series (1984-1985, 1984-1988, 1984-1989, 1984-1994) · DD 6V-92; DD 8V-92; Mack Diesel; Cummins L-10; Cummins N / NT; Mack Engines / MR Series (1980-1983, 1984-1985, 1984-1999) · Mack Engines; Cummins L-10 / R Series (1967-1971, 1972-1981, 1972-1983, 1978-1983, 1984-1990) · All Engines; Cummins Super 250; Cummins V-903; Cummins N / NH / NT; Mack Engines; DD 6V-92; Caterpillar 3406 14.6L; Cummiins Fleet 270; Cummins KT-450; DD 6V-92 9.0L; DD 8V-92; E4-210 Scania Dsl / RB Series (1984-1990, 1988-1999) · E4-210 Scania Dsl; Mack Engines / RD Series (1979-1983, 1982-1985, 1984-1985, 1984-1990, 1984-1999) · Mack Engines; DD 6V-92; Cummins NTC Engines; E4-210 Scania Dsl / RL Series (1975-1978, 1978-1983, 1984-1990) · DD 6V-71; DD 6V-92; E4-210 Scania Dsl; Mack Engines / RM Series (1978-1983, 1984-1990, 1984-1994) · DD 6V-92; DD 6V-92 9.0L; E4-210 Scania Dsl; Mack Engines
Mack published applications · group 3: RS Series (1975-1978, 1978-1983, 1979-1983, 1984-1990) · DD 6V-71; DD 6V-92; Mack Engines; DD 6V-92 9.0L; E4-210 Scania Dsl / RW Series (1978-1983, 1979-1983, 1982-1983, 1984-1985, 1984-1990, 1984-1994) · DD 8V-92; Mack Engines; Cummins N / NT; E4-210 Scania Dsl / U Series (1967-1971, 1972-1981, 1972-1983, 1984-1985) · All Engines; Cummins V-903; Mack Engines / W Series (1975-1983) · DD 8V-71 N; DD 8V-71 T; Mack END; Mack ENDL; Mack ENDLT; Mack ENDT
MCI published applications: All Models (By Engine) (1998-2003, 1998-2007, 2004-2007) · Cummins ISX; N14 6 Cyl. 14.0L; Cummins M11 ; 10.8L
Tanguay published applications: TT14030 (1985-2002) · Cat. 3304 ; 7.0L
Volvo published applications: All Models (By Engine) (1983-1988, 1983-1993, 1986-1991, 1986-1993, 1989-1993) · Cummins V-903; Caterpillar 3406; Cummins 855; DD 6V-92; Cummins L-10; Cummins N-14; DD Series 60 / G740 (2001-2002) · Cummins M11 / G740B (2002-2006) · D10B Volvo Dsl. / G746B (2002-2006) · D10B Volvo Dsl. / G780 (2001-2002) · Cummins M11 / G780B (2002-2006) · D10B Volvo Dsl.
Western Star HD published applications: All Models (By Engine) (1974-1979, 1974-1980, 1974-1982, 1974-1984, 1974-1985, 1984-1985, 1986-2003, 1989-1992, 1994-2001) · DD 6V-71; DD 8V-71; Cummins NH / NTA / NTC; Cummins V-903; DD 6V-92; Caterpillar 3406; Cummins L-10; DD 60 Series; DD 6V-92 ; 9.0L
White Industrial published applications: All Models (By Engine) (1979-1981, 1982-1985, 1984-1991, 1984, 1985, 1986-1988, 1986-1995, 1990-1993) · VT Cummins; Cummins N14 ; 14.0L; DD6V-92 ; 9.0L; Caterpillar 3406; Cummins NH.NTA,NTC,PT; DD 6V-71 ; 7.0L; Cummins L10 ; 10.0L; Caterpillar 3176 ; 10.3L; DD 60 Series
Fitment limitation: Confirm the complete part number, electrical rating, rotation, drive or pulley, mounting, terminals and equipment serial range before ordering.

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 3103305

Which machines use 3103305?

Recorded compatible model references include Allis Chalmers published applications: 6138 (1985) · Allis Diesel / 670 (1985) · Allis Diesel / 685 (1985) · Allis Diesel / 945 (1985-1986) · 25000 Allis Dsl., Case published applications · group 1: 1000 Travelift (1985-1994) · DD 4-71 / 40D (1985-1986) · DD 4-71 / 45DR (1986-1995) · DD 4-71 / 45R (1985-1986) · DD 4-71 Diesel / 50D (1985-1986) · DD 4-71 / 50LC (1985-1986) · DD 4-71 Diesel / 650CA Travelift (1985-1994) · DD 4-71 / 800 Travelift (1985-1994) · DD 4-71, Case published applications · group 2: 980 (1985-1986) · DD 4-71 / STX375 (2004-2007) · Cummins QSX, 15.0L / STX500 (2004-2007) · Cummins QSX, 15.0L / STX500QT (2004-2007) · Cummins QSX, 15.0L, Caterpillar Ag. & Ind. published applications · group 1: 16G (1985-1995) · Cat. 3406 / 245 (1985-1988) · Cat. 3406 / 245D (1989-1995) · Cat. 3406 / 3406 (1985-2000) · 6cyl, 893ci, 14.6L / 3408 (1986-1997) · 8cyl, 1099ci, 18.0L / 3412 (1986-1997) · 12cyl, 1649ci, 27.0L / 3508 (1986-1993) · 8cyl, 2105ci, 34.5L / 3512 (1986-1993) · 12cyl, 3158ci, 51.8L, Caterpillar Ag. & Ind. published applications · group 2: 3516 (1986-1993) · 16cyl, 4210ci, 69.0L / 375L (1989-1992) · Cat. 3406 / 375LME (1989-1992) · Cat. 3406 / 375MH (1989-1992) · Cat. 3406 / 621B (1985-1986) · Cat. 3406 / 621E (1986-1993) · Cat. 3406 / 623B (1985-1986) · Cat. 3406 / 623E (1986-1993) · Cat. 3406, Caterpillar Ag. & Ind. published applications · group 3: 776B (1984-1985) · Cat. 3508 / 777B (1984-1985) · Cat. 3508 / 824C (1985-1999) · Cat. 3406 / 825C (1985-1996) · Cat. 3406 / 825G (1995-1996) · Cat. 3406 / 826C (1985-1996) · Cat. 3406 / 826G (1995-1996) · Cat. 3406 / 980C (1985-1992) · Cat. 3406, Caterpillar Ag. & Ind. published applications · group 4: 980F (1991-1996) · Cat. 3406 / 992C (1987-1988) · Cat. 3408 / D8N (1986-1996) · Cat. 3406 / IT14B (1989-1993) · Cat. 3114; Cummins Diesel, Champion published applications: 740A (1985-1994, 1991-1994, 1997-2006) · Cummins L-10; Cummins M11 / 750 (1987-1994) · Cummins L-10 / 750A (1987-1994) · Cummins L-10 / 760 (1985-1991) · Cummins L-10 / 780 (1985-1991) · Cummins L-10 / 780A (1986-1994) · Cummins L-10 and 25 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 3103305?

Documented reference numbers (verify configuration; not automatically direct interchanges): 6819N, 6212 / 6819 / 6829, Caterpillar 207-1564, Cummins 3103305, Delco 19011507, 19011522, 8200034, 8200041, 8200410, Leece-Neville 7400M, 7400MA, 7400MC, 7402MA, M105702, Original Reference Number E6141533, Perkins Engine CH12807, Prestolite M105702, M105R3502SE, MS1-401A. See the complete relationship table above. Manufacturer number: DELCO. Related assembly numbers (not direct interchanges): 6370N.

How do I confirm 3103305 before ordering?

Confirm voltage and power rating against the original starter nameplate. Compare mounting-hole pattern, flange position and overall body orientation. Confirm pinion tooth count and rotation where those values are specified. Send clear photos of the original unit and connector layout when requesting a quote.