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ALTERNATOR 3991485 - Caterpillar


3991485 ALTERNATOR Caterpillar parts 3054C, 3054E, 420E, 914G, AP-600D, AP-655D, AP1000E, AP1055E, AP555E, BG500E, BG600D, BG655D, C4.4, C6.6, CP-56, CP-76, CS-54B, CS-64, CS-74, IT14G, IT14G2, M313D, M315C, M315D, M315D 2, M316D, M317D ...


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Alternative (cross code) number:
CA3991485
399-1485
3991485
Caterpillar 3991485 ALTERNATOR
Weight: 12 pounds 5 kg.

Buy ALTERNATOR 3991485 Caterpillar genuine, new aftermarket tractor parts with delivery
ASPHALT PAVER, WHEELED EXCAVATOR,

Related part:
3991485  ALTERNATOR GP -B  20R3890  R

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RAREELECTRICAL New 75 Amp Alternator Compatible With Caterpillar Cp56 Cs64 2008-2012 Cs74 2009-12 3991485
$235.91

03 Sep 2025
16.0[7.20] Pounds
US: Rareelectrical
RAREELECTRICAL New 75 Amp Alternator Compatible With Caterpillar Cp56 Cs64 2008-2012 Cs74 2009-12 3991485
Rareelectrical Rareelectrical Brand Compatible with CAT, CATERPILLAR, DELCO, PERKINS. Please verify your OEM part number from your original unit to help ensure fitment. || Replaces: Caterpillar: 399-1485 234-3463 20R-3890 3991485 2343463 20R3890 / Delco: 8600573 8600686 / Perkins Engine: 3991485 / Item Description: Alternator / Unit Type: Delco / Voltage: 24 / Amperage: 75 / Fan: Internal / Grooves: 9 / Serpentine Grooves Od: 2.37In / 60.2Mm / Pulley Type: Solid / Pulley Od: 2.535In / 64.4Mm / Mounting Ear 1 Hole: M8-1.25 Threaded / Mounting Ear 2 Hole: 8.4Mm Unthreaded / Mounting Ear 3 Hole: 8.6Mm Unthreaded / Mounting Ear 1 Thickness: 0.543In / 13.8Mm / || Applications: Caterpillar Ag. & Ind. Compactor Cp56 2008-2012 / Caterpillar Ag. & Ind. Compactor Cp76 / Caterpillar Ag. & Ind. Compactor Cs54b / Caterpillar Ag. & Ind. Compactor Cs64 2008-2012 / Caterpillar Ag. & Ind. Compactor Cs74 2009-2012 / Caterpillar Ag. & Ind. Engines - Industrial 3054E / Caterpillar Ag. & Ind. Engines - Industrial C4.4 / Caterpillar Ag. & Ind. Engines - Industrial C6.6 / Caterpillar Ag. & Ind. Excavator M313c / Caterpillar Ag. & Ind. Excavator M313d / Caterpillar Ag. & || Applications: / Caterpillar Ag. & Ind. Excavator M313d2 / Caterpillar Ag. & Ind. Excavator M315c / Caterpillar Ag. & Ind. Excavator M315d / Caterpillar Ag. & Ind. Excavator M316d / Caterpillar Ag. & Ind. Excavator M317d / Caterpillar Ag. & Ind. Loader - Backhoe 420E 2006-2012 / Caterpillar Ag. & Ind. Paving Equipment Ap1000e / Caterpillar Ag. & Ind. Paving Equipment Ap1055e / Caterpillar Ag. & Ind. Paving Equipment Ap555e / Caterpillar Ag. & Ind. Paving Equipment Ap600d 2009-2014... || Alternator - Voltage: 24V Amperage: 75 Amps Fan: Internal Grooves: 9 Country Of Origin: CN Source: Aftermarket
New Premium Alternator 24V 75 Amp w 8 Groove Pulley fits Caterpillar Ag & Industrial Applications AP600D 2009-2014 AP655D 04-05 CS74 09-2012 21127N 8600573 20R3890 234-3463 399-1485 101-03204 A-1827
$158.95

03 Sep 2025
15.0[6.75] Pounds
US: Quality Solutio
New Premium Alternator 24V 75 Amp w 8 Groove Pulley fits Caterpillar Ag & Industrial Applications AP600D 2009-2014 AP655D 04-05 CS74 09-2012 21127N 8600573 20R3890 234-3463 399-1485 101-03204 A-1827
Gladiator Meets or Exceeds OEM Specifications || One Year Warranty || 100% Computer Load Tested for Reliability || Delco Style 13SI CW Rotation J180 Mount
New Alternator 24 Volt 75 Amp w 8 Groove Pulley for Caterpillar Ag & Industrial Applications 914G 1995-2014, 420E 2006-2012, CP56 CS64 08-12, 21127 8600573 20R3890 234-3463 399-1485 101-03204 A-1827
$158.95

03 Sep 2025
15.0[6.75] pounds
US: Quality Solutio
New Alternator 24 Volt 75 Amp w 8 Groove Pulley for Caterpillar Ag & Industrial Applications 914G 1995-2014, 420E 2006-2012, CP56 CS64 08-12, 21127 8600573 20R3890 234-3463 399-1485 101-03204 A-1827
Gladiator Meets or Exceeds OEM Specifications || One Year Warranty || 100% Computer Load Tested for Reliability || Delco Style 13SI CW Rotation J180 Mount
Show more prices Caterpillar parts
This part in 2 request: Show. This information for suppliers only!
#371852 3991485
2019-10-02
#55351 3991485
2017-04-12
Number on catalog scheme: 17
Caterpillar 3991485 Parts scheme ALTERNATOR
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Compatible equipment models: 3991485:

ASPHALT PAVER  AP-1000E   AP-1055E   AP-555E   AP-600D   AP-655D   BG500E   BG600D   BG655D  
BACKHOE LOADER  420E  
COMPACT WHEEL LOADER  914G  
INDUSTRIAL ENGINE  3054C   3054E   C4.4   C6.6  
INTEGRATED TOOLCARRIER  IT14G   IT14G2  
VIBRATORY COMPACTOR  CP-56   CP-76   CS-54B   CS-64   CS-74  
WHEELED EXCAVATOR  M313D   M315C   M315D   M315D2   M316D   M317D2   M318D   M318D MH   M322D   M322D MH   Caterpillar

Information:

Ignition systems can cause electrical shocks. Avoid contacting the ignition system components and wiring.Magneto
The storage capacitor in a breakerless magneto can be charged by turning the magneto by hand. The storage capacitor can be charged even when the wiring harness is disconnected from the magneto.If the ignition switch is in the ON position and the wiring harness is being connected, the storage capacitor may discharge and a spark plug will ignite. The spark plug will ignite any gas that has accumulated in that cylinder. The crankshaft and the driven equipment can move. Personal injury may result. The driven equipment could be damaged. Gas that has accumulated in the exhaust system can also be ignited.Before connecting the wiring harness to a breakerless magneto, discharge the storage capacitor to the ground. Use the following procedure to discharge the storage capacitor:
Attach one end of a wire to the magneto housing.
Contact the other end of the wire to the connector pins for the wiring harness that is on the magneto. You will hear a “snap” when the storage capacitor discharges.
Ground all of the connector pins. This will ensure that no charge is in the magneto. Some breakerless magnetos have more than one storage capacitor.Turn the ignition switch to the OFF position before connecting the wiring harness. If the ignition switch is in the OFF position, the storage capacitor is immediately discharged to the ground when the wiring harness is connected to the magneto.

Cat SIS web machinery list:

Caterpillar parts catalog
3056E Industrial Engine 35600001-UP
3054C Industrial Engine 33400001-UP
3054E Industrial Engine 30400001-UP
C4.4 Industrial Engine 44400001-UP
C6.6 Industrial Engine 66600001-UP
AP655D Steel Track Asphalt Paver MAT00001-UP (MACHINE) POWERED BY C6.6 Engine
AP655D Mobil Trac Asphalt Paver GNZ00001-UP (MACHINE) POWERED BY C6.6 Engine
CS74 CP74 Vibratory Soil Compactor C8S00001-UP (MACHINE) POWERED BY C6.6 Engine
CS56 CP56 Vibratory Soil Compactor C5P00001-UP (MACHINE) POWERED BY C6.6 Engine
CS64 CP64 Vibratory Soil Compactor C6P00001-UP (MACHINE) POWERED BY C6.6 Engine
CS56 CP56 Vibratory Compactor FCP00001-UP (MACHINE) POWERED BY C6.6 Engine
CS64 CP64 Vibratory Compactor C7F00001-UP (MACHINE) POWERED BY C6.6 Engine
CS74 CP74 Vibratory Compactor C8F00001-UP (MACHINE) POWERED BY C6.6 Engine
AP655D Asphalt Paver MAN00001-UP (MACHINE) POWERED BY C6.6 Engine
AP655D Mobil Trac Asphalt Paver GNN00001-UP (MACHINE) POWERED BY C6.6 Engine
CS76 CP76 Vibratory Compactor JCP00001-UP (MACHINE) POWERED BY C6.6 Engine
CS76 XT CP76 Vibratory Compactor C7L00001-UP (MACHINE) POWERED BY C6.6 Engine
AP600D Asphalt Paver TFZ00001-UP (MACHINE) POWERED BY C6.6 Engine
AP600D Asphalt Paver TFM00001-UP (MACHINE) POWERED BY C6.6 Engine
AP555E, BG555E Asphalt Paver A5D00001-UP (MACHINE) POWERED BY C4.4 Engine
AP500E BG500E Asphalt Paver B5E00001-UP (MACHINE) POWERED BY C4.4 Engine
CS44 CP44 Vibratory Soil Compactor M4P00001-UP (MACHINE) POWERED BY C4.4 Engine
CS44 CP44 Vibratory Soil Compactor M4C00001-UP (MACHINE) POWERED BY C4.4 Engine
BG-600D Wheel Type Asphalt Paver B6K00001-UP (MACHINE) POWERED BY C6.6 Engine
BG-655D Steel Track Asphalt Paver BG-655D Mobile Track System Asphalt Paver B5D00001-UP (MACHINE) POWERED BY C6.6 Engine
AP1055E Asphalt Paver TRS00001-UP (MACHINE) POWERED BY C6.6 Engine
AP1000E Asphalt Paver DKH00001-UP (MACHINE) POWERED BY C6.6 Engine
CS54B Compactor 54400001-UP (MACHINE) POWERED BY C4.4 Engine
CS54B, CP54B Compactor MFC00001-UP (MACHINE) POWERED BY C4.4 Engine
CS54B,CP54B Vibratory Soil Compactor M5B00001-UP (MACHINE) POWERED BY C4.4 Engine
CS64B Vibratory Soil Compactor DH600001-UP (MACHINE) POWERED BY C4.4 Engine
527 Track Skidder J6800001-UP (MACHINE) POWERED BY C7.1 Engine
420D Backhoe Loader MBH00001-UP (MACHINE) POWERED BY 3054C Engine
IT14G Integrated Tool Carrier FWL00001-UP (MACHINE) POWERED BY 3054C Engine
C4.4 Industrial Engine 44400001-UP
420E Backhoe Loader Parallel Lift GAN00001-UP (MACHINE) POWERED BY 3054C Engine
CS56 Soil Compactor - Military JMM00001-UP (MACHINE) POWERED BY C6.6 Engine
914G2 Compact Wheel Loader and IT14G2 Integrated Tool Carrier ERP00001-UP (MACHINE) POWERED BY C4.4 Engine
420E Backhoe Loader GEK00001-UP (MACHINE)
420F2 ADL (Air Deployable Loader) NSB00001-UP (MACHINE) POWERED BY 3054C Engine
M318C Excavator BCZ00001-02000 (MACHINE) POWERED BY 3056 Engine
M316C Excavator BDX00001-02000 (MACHINE) POWERED BY 3056 Engine
M322C Excavator BDK00001-02000 (MACHINE) POWERED BY 3056 Engine
M315C EXCAVATOR BDM00001-02000 (MACHINE) POWERED BY 3054 Engine
M313C Excavator BDR00001-02000 (MACHINE) POWERED BY 3054 Engine
M322C Excavator BDY00001-02000 (MACHINE) POWERED BY 3056 Engine
M318C Material Handler BEB00001-02000 (MACHINE) POWERED BY 3056E Engine
M318C Excavator BCZ02001-UP (MACHINE) POWERED BY 3056E Engine
M316C Excavator BDX02001-UP (MACHINE) POWERED BY 3056E Engine
M322C Excavator BDK02001-UP (MACHINE) POWERED BY 3056E Engine
M315C Excavator BDM02001-UP (MACHINE) POWERED BY 3054E Engine
M313C Excavator BDR02001-UP (MACHINE) POWERED BY 3054E Engine
M322C Excavator BDY02001-UP (MACHINE) POWERED BY 3056E Engine
M318C Material Handler BEB02001-UP (MACHINE) POWERED BY 3056E Engine
M318C Excavator H2D00001-UP (MACHINE) POWERED BY 3056E Engine
M316C Excavator H2C00001-UP (MACHINE) POWERED BY 3056E Engine
M322C Excavator H2E00001-UP (MACHINE) POWERED BY 3056E Engine
M315C Excavator H2B00001-UP (MACHINE) POWERED BY 3054E Engine
M313C Excavator H2A00001-UP (MACHINE) POWERED BY 3054E Engine
M322C Excavator H2G00001-UP (MACHINE) POWERED BY 3056E Engine
M318C Excavator H2F00001-UP (MACHINE) POWERED BY 3056E Engine
M316D Excavator W6A00001-UP (MACHINE) POWERED BY C6.6 Engine
M318D Excavator W8P00001-UP (MACHINE) POWERED BY C6.6 Engine
M318D Material Handler W8R00001-UP (MACHINE) POWERED BY C6.6 Engine
M322D Excavator W2S00001-UP (MACHINE) POWERED BY C6.6 Engine
M322D Material Handler W2T00001-UP (MACHINE) POWERED BY C6.6 Engine
M313D Excavator W3H00001-UP (MACHINE) POWERED BY C4.4 Engine
M315D Excavator W5M00001-UP (MACHINE) POWERED BY C4.4 Engine
M316D Excavator D6W00001-UP (MACHINE) POWERED BY C6.6 Engine
M318D Excavator D8W00001-UP (MACHINE) POWERED BY C6.6 Engine
M322D Excavator D2W00001-UP (MACHINE) POWERED BY C6.6 Engine
M318D Material Handler D9X00001-UP (MACHINE) POWERED BY C6.6 Engine
M322D Material Handler D3X00001-UP (MACHINE) POWERED BY C6.6 Engine
M313D Excavator J3A00001-UP (MACHINE) POWERED BY C4.4 Engine
M315D Excavator J5B00001-UP (MACHINE) POWERED BY C4.4 Engine
M313D Excavator K3D00001-UP (MACHINE) POWERED BY C4.4 Engine
M315D Excavator K5E00001-UP (MACHINE) POWERED BY C4.4 Engine
M315 D2 Wheeled Excavator CH300001-UP (MACHINE) POWERED BY C4.4 Engine
M317 D2 Wheeled Excavator CH500001-UP (MACHINE) POWERED BY C4.4 Engine
M316D Wheeled Excavator P6K00001-UP (MACHINE) POWERED BY C6.6 Engine
M318D Wheeled Excavator P8L00001-UP (MACHINE) POWERED BY C6.6 Engine
M322D Wheeled Excavator P2T00001-UP (MACHINE) POWERED BY C6.6 Engine
M318D MH Wheeled Excavator P9M00001-UP (MACHINE) POWERED BY C6.6 Engine
M322D MH Wheeled Excavator P3W00001-UP (MACHINE) POWERED BY C6.6 Engine
914G Wheel Loader PDF00001-UP (MACHINE) POWERED BY 3054C Engine
914G2 Compact Wheel Loader and IT14G2 Integrated Tool Carrier ERP00001-UP (MACHINE) POWERED BY C4.4 Engine


Parts alternator Caterpillar catalog:

2684110 ALTERNATOR GP-CHARGING
C-10, C-12, C6.6
3832556 ALTERNATOR
414E, 416E, 422E, C4.4, C6.6
3469827 ALTERNATOR-CHARGING
3056E, 420D, 420E, 914G, CP-44, CP-64, CP-76, CS-44, CS-54B, CS-56, CS-74, IT14G, M313C, M313D, M315C, M316D, M318D, M318D MH, M322D, M322D MH
3397767 ALTERNATOR GP-CHARGING
3054, 3054B, 3054C, 3054E, 3056, C3.3, C4.4, SPF343C
3469824 ALTERNATOR GP-CHARGING
C4.4, C6.6
3469826 ALTERNATOR GP-CHARGING
3024C, 3054C, 3054E, 315C, AP555E, BG500E, C2.2, C4.4, CP-573E, CP-663E, CS-323C, CS-423E, CS-54, CS-563E, CS-583E, CS-663E, CS-683E
4246821 ALTERNATOR
3054C, 3054E, 3056E, 312D2, 312D2 GC, 312D2 L, 313D2, 313D2 LGP, 318D2 L, AP-650B, AP-800D, BB-760, C4.4, CP-433E, CP-533E, CP-573E, CP-663E, CS-423E, CS-433E, CS-533E, CS-563E, CS-583E, CS-663E, CS-6...
2253143 ALTERNATOR GP-CHARGING
C4.4
2253147 ALTERNATOR GP-CHARGING
924G, 924GZ, 930G, C6.6, IT28G, M316C, M318C, M318C MH, M322C
3789645 ALTERNATOR
559, C6.6
2253145 ALTERNATOR GP-CHARGING
C6.6
3789640 ALTERNATOR
C6.6, CS-56B, CS-74B, CW-34
3943496 ALTERNATOR AS
216B, 216B3, 226B, 226B3, 232B, 242B, 247B, 247B3, 257B, 3013C, 3024C, C1.5, C2.2, CB22B, CB24B, CB32B, CB34B, CB34B XW, CC24B, CC34B
2360753 ALTERNATOR GP-CHARGING
TH210, TH215
3469827 ALTERNATOR-CHARGING
3056E, 420D, 420E, 914G, CP-44, CP-64, CP-76, CS-44, CS-54B, CS-56, CS-74, IT14G, M313C, M313D, M315C, M316D, M318D, M318D MH, M322D, M322D MH
3491369 ALTERNATOR GP-CHARGING
226B, 232B, 242B, 247B, 257B, 3024C, C2.2, CB22B, CB32B, CC24B
2390772 ALTERNATOR GP-CHARGING
236B, 246C, 252B, 256C, 262C, 267B, 268B, 272C, 277C, 287C, 297C, 906
3832556 ALTERNATOR
414E, 416E, 422E, C4.4, C6.6
1677816 ALTERNATOR GP-CHARGING
3126B, C7, C9
1W1163 ALTERNATOR & GUARD AS
3408, 3408C, 3412, 3412C
4N3896 ALTERNATOR GROUP
3512, 910, 931B, 935B, D3
3979953 ALTERNATOR AS
236D, 242D, 246D, 257D, 259D, 262D, 277D, 279D, 287D, 289D, 906H2, 907H2, 908H2
3218927 ALTERNATOR
416F, 420F, 428F, 430F, 432F, 434F, 444F, 450F, C4.4, C7.1
3776966 ALTERNATOR AS
272D, 272D XHP, 299D, 299D XHP, 910K, 914K
3991485
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