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ROPS: Open
Serial Number: 54X00667
Stock Number: 561D Hydraulic PL
Description: 561D Hydraulic Pipelayer S/N 54X00667
Hydraulic conversion
40,000 lbs. capacity
OROPS
Two speed load line winch
Single speed boom winch
...
Updated: Monday, June 01, 2026 03:37 PM
Location: Tulsa, Oklahoma
Seller: Challenger Services
ROPS: Open
Serial Number: 54X00355
Stock Number: 561D Hydraulic PL
Description: 561D Hydraulic Pipelayer S/N 54X00355
Challenger CPC-561 Hydraulic Conversion - 2013
40,000 lbs. capacity
OROPS
Two speed load line winch
Sing...
Updated: Monday, June 01, 2026 03:37 PM
Location: Tulsa, Oklahoma
Seller: Challenger Services
ROPS: Open
Serial Number: 54X00337
Stock Number: 561D Hydraulic PL
Description: 561D Hydraulic Pipelayer S/N 54X00337
Challenger CPC-561 Hydraulic Conversion - 2013
40,000 lbs. capacity
Two speed load line winch
Single...
Updated: Monday, June 01, 2026 03:37 PM
Location: Tulsa, Oklahoma
Seller: Challenger Services
ROPS: Open
Serial Number: 54X00643
Stock Number: 561D Hydraulic PL
Description: 561D Hydraulic Pipelayer S/N 54X00643
Hydraulic Conversion
40,000 lbs. capacity
OROPS
Two speed load line winch
Single speed boom winch
...
Updated: Monday, June 01, 2026 03:37 PM
Location: Tulsa, Oklahoma
Seller: Challenger Services
ROPS: None
Serial Number: 62A383
Description: Midwestern 561C All Hydraulic Pipelayer Sideboom, 20" double bar pads, hydraulic winches, 6 cyl Cat Diesel, Runs Great,
Updated: Monday, June 01, 2026 03:31 PM
Location: Woodland, California
Hours: 13,481
ROPS: Open
Serial Number: 92J433
Stock Number: 73CAT561PIPE
Description: nice machine, dual winches, runs and operates excellent. good U/C, *MACHINE HAS SET FOR A LONG TIME AND WILL NEED A FULL SERVICE AND GOING OVERGOIN...
Updated: Wednesday, June 03, 2026 04:20 PM
Location: Covington, Tennessee
Seller: Don Baskin Truck Sales LLC
ROPS: Open
Description: Please Contact For Further Details
Updated: Monday, June 01, 2026 07:41 AM
Location: Columbia, Maryland
Seller: Energy Kinetics, LLC
Hours: 1,200
ROPS: None
Serial Number: 92J197
Stock Number: 172-24165
Description: Midwestern Hydraulic Conversion, Cat 3306 Diesel,newer rails
Located in Woodland California
Updated: Monday, June 01, 2026 03:31 PM
Location: Woodland, California
ROPS: None
Serial Number: 54X763
Stock Number: 8841
Description: Hyd. Counterweight, 18' Boom,
Powershift Trans,
CAT 3306 DI
35k lbs obo
40k lift
Updated: Sunday, March 22, 2026 05:32 PM
Location: Madera, California
Seller: National Equipment, LLC
ROPS: None
Serial Number: 54X765
Stock Number: 8840
Description: Hyd Counterwight, 18' Boom,
CAT 3306 DI
Powershift Transmission,
35k lbs obo
40k lift
Updated: Sunday, March 22, 2026 05:32 PM
Location: Madera, California
Seller: National Equipment, LLC
Hours: 6,239
ROPS: Open
Serial Number: 54X00674
Description: Superior CPX Hydraulic Conversion, Boom of Choice-Two (2) pipelayers available for sale in excellent condition, very detailed records and histories.
Updated: Wednesday, April 22, 2026 07:14 PM
Location: Lubbock, Texas
Seller: Worldwide Machinery
Hours: 2,821
ROPS: Open
Drawworks: Hydraulic
Description: Powershift, UC 90%, runs good
Updated: Tuesday, April 14, 2026 08:54 AM
Location: Prestonsburg, Kentucky
Seller: Equipment Tool Supply
Hours: 2,686
ROPS: Open
Serial Number: 54X00549
Description: 18FT MIDWESTERN SIDE BOOM. 3 LEVER CONTROL. 20IN SINGLE GROUSER TRACK PADS.
Updated: Tuesday, June 02, 2026 08:23 AM
Location: Pittston Township, Pennsylvania
Seller: LC Enterprise, LLC
ROPS: Open
Serial Number: 54X00544
Stock Number: 319
Description:
Updated: Sunday, March 22, 2026 05:32 PM
Location: Madera, California
Seller: National Equipment, LLC
ROPS: None
Serial Number: 54X00571
Stock Number: 8844
Description: Hyd Counterweight
3306 DI
35k lbs obo
40k lift
Updated: Sunday, March 22, 2026 05:32 PM
Location: Madera, California
Seller: National Equipment, LLC
Hours: 150
ROPS: Open
Serial Number: 54X00463
Stock Number: 561D Hydraulic PL
Description: 561D Hydraulic Pipelayer S/N 54X00463
NEW Challenger CPC-561 Hydraulic Conversion
40,000 lbs. capacity
Two speed load line winch
Si...
Updated: Wednesday, May 06, 2026 07:39 AM
Location: Tulsa, Oklahoma
Seller: Challenger Services
ROPS: Open
Serial Number: 54X00502
Description: 35k lbs obo
40k lift
Updated: Sunday, March 22, 2026 05:32 PM
Location: Madera, California
Seller: National Equipment, LLC
Hours: 3,970
ROPS: Open
Serial Number: 54X00394
Description: 1979 Caterpillar 561D crawler pipelayer, CAT 3306 diesel engine, naturally aspirated, powershift, lever steering, 2007 Midwestern 561MMC hydraulic ...
Updated: Tuesday, May 19, 2026 09:15 AM
Location: Carbondale, Pennsylvania
Seller: Old Forge Power Equipment Inc.
ROPS: Open
Serial Number: 54X406
Description: 2011 Midwestern M561 Hydraulic Conversion, 18 ft 5 in Midwestern Side Boom, Winch, Drawbar, 20" Track Shoes, Excellent Undercarriage!
Updated: Tuesday, June 02, 2026 10:08 AM
Location: Womelsdorf, Pennsylvania
Seller: WEACO EQUIPMENT
ROPS: Open
Description: Please Contact For Further Details
The Unit Is Located Oklahoma City, Oklahoma
Updated: Monday, June 01, 2026 07:41 AM
Location: Columbia, Maryland
Seller: Energy Kinetics, LLC
ROPS: Open
Description: Please Contact For Further Details
The Unit Is Located In Oklahoma City, Oklahoma
Updated: Monday, June 01, 2026 07:41 AM
Location: Columbia, Maryland
Seller: Energy Kinetics, LLC
ROPS: Open
Serial Number: 54X00731
Stock Number: 561D Hydraulic PL
Description: 561D Hydraulic Pipelayer S/N 54X00731
Hydraulic conversion
40,000 lbs. capacity
OROPS
Two speed load line winch
Single speed boom winch
2...
Updated: Wednesday, May 06, 2026 07:39 AM
Location: Tulsa, Oklahoma
Seller: Challenger Services
ROPS: Open
Serial Number: 54X00410
Stock Number: 561 Mechanical PL
Description: 561D Mechanical Pipelayer S/N 54X00410
Mechanical pipelayer – original Cat winches
40,000 lbs. capacity
Two speed load line winch
Single s...
Updated: Wednesday, May 06, 2026 07:39 AM
Location: Tulsa, Oklahoma
Seller: Challenger Services
ROPS: None
Serial Number: 54X00609
Description: Hyd Counterweight
CAT 3306 DI
Powershift Trans
Boom
35k lbs obo
40k lift
Updated: Sunday, March 22, 2026 05:32 PM
Location: Madera, California
Seller: National Equipment, LLC
Hours: 6,800
Horsepower: 105 HP
ROPS: Open
Serial Number: 6NL00420
Description: Caterpillar 561H hydraulic pipelayer
1996 model
Hours 6800
HP 105
100% original equipment plus ROPS. Pullmaster hydraulic p...
Updated: Wednesday, May 06, 2026 07:39 AM
Location: Tulsa, Oklahoma
Seller: Challenger Services
Hours: 7,000
Horsepower: 105 HP
ROPS: Open
Serial Number: 6NL00357
Description: Caterpillar 561H hydraulic pipelayer
1994 model
Hours 7000
HP 105
S/N 6NL00357
100% original equipment plus ROPS. Pullma...
Updated: Wednesday, May 06, 2026 07:39 AM
Location: Tulsa, Oklahoma
Seller: Challenger Services
Hours: 6,041
ROPS: Open
Serial Number: 1KW00269
Engine Manufacturer: CATERPILLAR
Engine Model: 3116
Pipeline Equipment Type: Pipelayer
Description: 1999 Caterpillar 561M pipelayer, CAT 3116 turbo diesel engine, 20" single grouse track pads, hydraulic pipelayer controls, extendable counterweight...
Updated: Tuesday, May 19, 2026 09:15 AM
Location: Carbondale, Pennsylvania
Seller: Old Forge Power Equipment Inc.
Hours: 80,000
ROPS: Open
Serial Number: 1KW00179
Description: ROPS, Hydraulic Pipelayer, Boom Of Choice. Well maintained rental fleet equipment
Updated: Wednesday, April 22, 2026 07:14 PM
Location: Houston, Texas
Seller: Worldwide Machinery
