29 - 56 of 392 Listings
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ROPS: None
Serial Number: 54X765
Stock Number: 8840
Description: Hyd Counterwight, 18' Boom,
CAT 3306 DI
Powershift Transmission,
35k lbs obo
40k lift
Updated: Wednesday, September 09, 2026 11:26 am
Location: Madera, California, USA
Seller: National Equipment, LLC
Hours: 3,433
ROPS: Open
Serial Number: 54X00694
Description: Superior CPX Hydraulic Conversion, Boom of Choice
Updated: Monday, October 26, 2026 08:13 am
Location: Denver, Colorado, USA
Seller: Worldwide Machinery
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: Monday, October 26, 2026 08:13 am
Location: Lubbock, Texas, USA
Seller: Worldwide Machinery
Hours: 2,686
ROPS: Open
Serial Number: 54X00549
Description: 18FT MIDWESTERN SIDE BOOM. 3 LEVER CONTROL. 20IN SINGLE GROUSER TRACK PADS.
Updated: Tuesday, September 08, 2026 09:52 am
Location: Pittston Township, Pennsylvania, USA
Seller: LC Enterprise, LLC
ROPS: Open
Serial Number: 54X00544
Stock Number: 319
Description:
Updated: Wednesday, September 09, 2026 11:26 am
Location: Madera, California, USA
Seller: National Equipment, LLC
ROPS: None
Serial Number: 54X00571
Stock Number: 8844
Description: Hyd Counterweight
3306 DI
35k lbs obo
40k lift
Updated: Wednesday, September 09, 2026 11:26 am
Location: Madera, California, USA
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: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
Seller: Challenger Services
ROPS: Open
Stock Number: 93753
Description: WBM CANOPY, JOYSTICK BOOM CONTROLS, ENGINE COOLANT HEATER, 20" SINGLE GROUSE PADS WITH 2.' GROUSER HEIGHT, 20" SINGLE GROUSERS, RAIL HEIGHT 4", 20...
Updated: Wednesday, September 30, 2026 09:19 am
Location: Acheson, Alberta, Canada
Seller: Arrow-West Equipment Ltd.
ROPS: Open
Serial Number: 54X00502
Description: 35k lbs obo
40k lift
Updated: Wednesday, September 09, 2026 11:26 am
Location: Madera, California, USA
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: Thursday, September 24, 2026 07:03 am
Location: Carbondale, Pennsylvania, USA
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: Thursday, August 27, 2026 12:12 pm
Location: Womelsdorf, Pennsylvania, USA
Seller: WEACO EQUIPMENT
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: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
Seller: Challenger Services
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: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
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: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
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: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
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: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
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: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
Seller: Challenger Services
ROPS: None
Serial Number: 54X00609
Description: Hyd Counterweight
CAT 3306 DI
Powershift Trans
Boom
35k lbs obo
40k lift
Updated: Wednesday, September 09, 2026 11:26 am
Location: Madera, California, USA
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: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
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: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
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: Thursday, September 24, 2026 07:03 am
Location: Carbondale, Pennsylvania, USA
Seller: Old Forge Power Equipment Inc.
Hours: 3,200
ROPS: Open
Serial Number: 1KW00202
Description: ROPS, Hydraulic Pipelayer, Boom Of Choice. Well maintained rental fleet equipment. Offered cleaned and painted.
Updated: Monday, October 26, 2026 08:13 am
Location: Houston, Texas, USA
Seller: Worldwide Machinery
ROPS: Open
Serial Number: 1KW00148
Description: 3 units Caterpillar 561M sideboom for sale
Updated: Tuesday, October 27, 2026 08:05 am
Location: Hefei, Anhui, China
Seller: Whelen Heavy Equipment Ltd.
Hours: 1,730
ROPS: Open
Serial Number: TAD00141
Description: ROPS, Hydraulic Pipelayer, Boom of choice-(6) Six total units available for sale, well maintained rental fleet pipelayers!!! Very detailed records ...
Updated: Monday, October 26, 2026 08:13 am
Location: Houston, Texas, USA
Seller: Worldwide Machinery
Hours: 4,479
ROPS: Enclosed
Serial Number: TAD00119
Description: ROPS, Hydraulic Pipelayer, Boom of choice
Updated: Monday, October 26, 2026 08:13 am
Location: Houston, Texas, USA
Seller: Worldwide Machinery
Hours: 5,339
ROPS: Open
Serial Number: CPH00165
Description: ROPS, Hydraulic Pipelayer, Boom of choice-(6) Six total units available for sale, well maintained rental fleet pipelayers!!! Very detailed records ...
Updated: Monday, October 26, 2026 08:13 am
Location: Houston, Texas, USA
Seller: Worldwide Machinery
Hours: 5,694
ROPS: Open
Serial Number: CAT0561NPTAD00135
Description: 561N CAT pipelayer Midwestern boom ready for work. Call for more info.
Updated: Thursday, October 22, 2026 05:17 pm
Location: Wichita Falls, Texas, USA
Seller: Garcia Grading & Holding LLC
ROPS: Open
Serial Number: TAD00139
Stock Number: Hyd. cwts
Description: CAT 561N Hydraulic Pipelayer S/N TAD00139, 2008 Model, 20 Ton Capacity, Hours: 345, 30" Pads
Hydraulic counterweights
Updated: Tuesday, September 22, 2026 07:49 am
Location: Tulsa, Oklahoma, USA
Seller: Challenger Services
