Get Financing1 - 28 of 49 Listings
RentAll
Condition: Used
Stock Number: IEEN-664-CT
Serial Number: R1A00726
Weight: 15,000 lb
Shipping Length: 120 in
Shipping Width: 84 in
Description: Stock # IEEN- 664-CT
Inventory Sheet
Engine/Pwr Unit Price $ 49,000
Description 3512 CAT Industrial Engine, Frack Spec, 2250 HP @ 1...
Updated: Monday, August 17, 2026 10:53 AM
Location: East Earl, Pennsylvania
Seller: Industrial Engines, LLC
Condition: Used
Stock Number: 1847
Serial Number: 67Z01444
Description: Description
CAT 3512 DITA Engine Core; 1997 Model – High Hours; 1321HP @ 1200RPM; Heavy Duty Air Cleaners; Air Starter; HMSO; Good Rebuildable Cor...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Used
Stock Number: 1846
Serial Number: 67Z01449
Description: Description
CAT 3512 DITA Engine Core; 1997 Model – High Hours; 1321HP @ 1200RPM; Heavy Duty Air Cleaners; Air Starter; HMSO; Good Rebuildable Cor...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Rebuilt
Serial Number: WF300114
Description: Rebuilt Caterpillar 3512 engine.
[Available Now]
Updated: Monday, July 13, 2026 02:29 PM
Location: Decatur, Texas
Seller: Industrial Diesel Inc.
Condition: Used
Serial Number: WF500820
Description: Caterpillar 3512 engine with 8283 hours. Engine has new injectors and has been dyno tested.
Arrangement number 3863025
Updated: Monday, August 10, 2026 08:50 AM
Location: Decatur, Texas
Seller: Industrial Diesel Inc.
Condition: Core
Serial Number: 2AF00484
Description: Caterpillar 3512 core engine. Arrangement number 173-2948. 2250HP well service.
[available now]
Updated: Wednesday, August 12, 2026 02:21 PM
Location: Decatur, Texas
Seller: Industrial Diesel Inc.
Condition: Core
Serial Number: SK500338
Description: Caterpillar 3512 engine core. BLOCK HAS HOLE.
Arrangement number: 4153596
[Available Now]
Updated: Monday, July 13, 2026 02:29 PM
Location: Decatur, Texas
Seller: Industrial Diesel Inc.
Condition: Core
Stock Number: 1714
Serial Number: 4AW01149
Description: Used CAT 3512B Land Electric Engine; 2005 Model – 47,300 Hours; 1476HP @ 1200RPM; Tier 1 Emissions; Heavy Duty Oilfield Skid; ACE Cooler Radiator; ...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Core
Stock Number: 1713
Serial Number: 4AW01149
Description: Used CAT 3512B Land Electric Engine; 2005 Model – High Hours; 1476HP @ 1200RPM; Tier 1 Emissions; Heavy Duty Oilfield Skid; ACE Cooler Radiator; Mo...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Core
Stock Number: 1712
Serial Number: 4AW01148
Description: Used CAT 3512B Land Electric Engine; 2005 Model – High Hours; 1476HP @ 1200RPM; Tier 1 Emissions; Heavy Duty Oilfield Skid; ACE Cooler Radiator; Mo...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Core
Stock Number: 1715
Serial Number: 4AW01147
Description: Used CAT 3512B Land Electric Engine; 2005 Model – 36,978 Hours; 1476HP @ 1200RPM; Tier 1 Emissions; Instrument Panel; CAT & Kato Generator End Opti...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Used
Stock Number: 1887
Serial Number: 4AW01222
Description: Used CAT 3512B Land Electric Engine; 2005 Model – High Hours; 1476HP @ 1200RPM; Tier 1 Emissions; Instrument Panel; CAT & Kato Generator End Option...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Used
Stock Number: 1893
Serial Number: 4AW01593
Description: Used CAT 3512B Land Electric Engine; 2006 Model – High Hours; 1476HP @ 1200RPM; Tier 1 Emissions; Instrument Panel; CAT & Kato Generator End Option...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Quantity: 4
Condition: Used
Stock Number: 1892
Description: Used CAT 3512B Land Electric Engine; 2001 Model – High Hours; 1476HP @ 1200RPM; Tier 1 Emissions; No Instrument Panel; CAT & Kato Generator End Opt...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Quantity: 2
Condition: Used
Stock Number: 1828
Weight: 15,000 lb
Description: High Hour CAT 3512B Industrial Well Service Engine; Rebuildable Core – No Major Failures; 2250 HP @ 1900RPM; SCAC Configuration; Tier 1 Emissions; ...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Used
Stock Number: IEEN-730-CT
Serial Number: 6WN00586
Weight: 18,000 lb
Shipping Length: 106 in
Shipping Width: 59 in
Description: Stock # IEEN- 730-CT
Inventory Sheet
Engine/Pwr Unit Price $ 115,000
Description 3512B CAT Industrial Engine Take Out of Genset, 75...
Updated: Monday, August 17, 2026 10:53 AM
Location: East Earl, Pennsylvania
Seller: Industrial Engines, LLC
Quantity: 2
Condition: Core
Description: CORE ENGINE / PART NUMBER 121--5785 - PRICE OUTRIGHT / FIT 785B TRUCKS // MISSING SOME PARTS
Updated: Monday, August 17, 2026 03:30 PM
Location: Medley, Florida
Seller: MBR DYNAMIC PARTS CORP
Condition: Rebuilt
Description: Rebuilt 3512B Caterpillar Engine
ENGINE IS BUILT UPON ORDER AND SUBJECT TO PART AVAILABILTY.
Industrial Diesel Inc. offers a broad range of re...
Updated: Monday, July 13, 2026 02:29 PM
Location: Decatur, Texas
Seller: Industrial Diesel Inc.
Condition: Used
Stock Number: IEEN-637-CT
Serial Number: WF300508
Weight: 15,000 lb
Shipping Length: 121 in
Shipping Width: 84 in
Description: Stock # IEEN- 637-CT
Inventory Sheet
Engine/Pwr Unit Price $ 59,500
Description 3512C CAT Industrial Engine, Frack Spec, 2250 HP @ ...
Updated: Monday, August 17, 2026 10:53 AM
Location: East Earl, Pennsylvania
Seller: Industrial Engines, LLC
Condition: Used
Stock Number: IEEN-639-CT
Serial Number: R1A00993
Weight: 15,000 lb
Shipping Length: 130 in
Shipping Width: 90 in
Description: Stock # IEEN- 639-CT
Inventory Sheet
Engine/Pwr Unit Price $ 59,500
Description 3512C CAT Industrial Engine, Frank Spec., 2250 HP @...
Updated: Monday, August 17, 2026 10:53 AM
Location: East Earl, Pennsylvania
Seller: Industrial Engines, LLC
Condition: Used
Stock Number: IEEN-662-CT
Serial Number: WF300100
Weight: 15,000 lb
Shipping Length: 120 in
Shipping Width: 84 in
Description: Stock # IEEN- 662-CT
Inventory Sheet
Engine/Pwr Unit Price $ 55,000
Description 3512 CAT Industrial Engine, Frack Spec, 2250 HP @ 1...
Updated: Monday, August 17, 2026 10:53 AM
Location: East Earl, Pennsylvania
Seller: Industrial Engines, LLC
Condition: Used
Stock Number: IEEN-679-CT
Serial Number: WF300410
Weight: 15,000 lb
Shipping Length: 120 in
Shipping Width: 84 in
Description: Stock # IEEN- 679-CT
Inventory Sheet
Engine/Pwr Unit Price $ 45,000
Description 3512C Caterpillar Industrial Frack Spec Engine, 225...
Updated: Monday, August 17, 2026 10:53 AM
Location: East Earl, Pennsylvania
Seller: Industrial Engines, LLC
Condition: Used
Stock Number: MPS1846
Serial Number: R1A01662
Description: Caterpillar 3512C ATAAC Core Engine – MPS1845/1846 – SN: R1A01667/R1A01662 – 2012 DOM – Can Quote 0 Hour Overhaul Or Sell As Is – 2 Units Available...
Updated: Wednesday, July 29, 2026 10:08 AM
Location: Katy, Texas
Seller: McKain Power Systems Consulting, LLC
Condition: Used
Stock Number: MPS1845
Serial Number: R1A01667
Description: Caterpillar 3512C ATAAC Core Engine – MPS1845/1846 – SN: R1A01667/R1A01662 – 2012 DOM – Can Quote 0 Hour Overhaul Or Sell As Is – 2 Units Available...
Updated: Wednesday, July 29, 2026 10:08 AM
Location: Katy, Texas
Seller: McKain Power Systems Consulting, LLC
Condition: Used
Stock Number: 1837
Serial Number: LLA01505
Description: Used CAT 3512C Land Electric Engine; 2008 Model – High Hours; 1476HP @ 1200RPM; Tier 2 Emissions; Heavy Duty Air Cleaner Housings; Minor Fire Damag...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Used
Stock Number: 1672
Serial Number: LLA03797
Description: Top End Overhaul CAT 3512C Land Electric Engine; 2007 Model; Zero Hours Since Top End Overhaul; 1476HP @ 1200RPM; Tier 2 Emissions; Overhaul Comple...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Used
Stock Number: 1671
Serial Number: LLA01020
Description: Zero Hour Rebuilt CAT 3512C Land Electric Engine; 2007 Model; 1476HP @ 1200RPM; Tier 2 Emissions; Rebuild Completed by CAT Dealer w. CAT Parts; CAT...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
Condition: Core
Stock Number: 1710
Serial Number: LLA00178
Description: Used CAT 3512C Land Electric Engine; 2006 Model – 19,085 Hours; 1476HP @ 1200RPM; Tier 2 Emissions; Mounted on Standard Generator Rails; CAT & Kato...
Updated: Wednesday, September 02, 2026 07:55 AM
Location: Spring, Texas
Seller: NineX Power Systems
