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ROPS: Open
Serial Number: 54X00544
Stock Number: 319
Description:
Updated: Wednesday, August 19, 2026 04:05 PM
Location: Madera, California, USA
Seller: National Equipment, LLC
ROPS: Open
Serial Number: 54X00570
Stock Number: 17077
Engine Manufacturer: CATERPILLAR
Engine Model: 3306DI
Description: BULLDOZER PARA PARTES, CON MOTOR CATERPILLAR 3306DI A DIESEL, ADITAMENTO MARCA SUPERIOR, MODELO CPX-71, AÑO 2012
Updated: Friday, August 21, 2026 12:17 PM
Location: Cuauhtémoc, Chihuahua, Mexico
Seller: Maquinaria Wiebe Km 24
ROPS: None
Serial Number: 54X00571
Stock Number: 8844
Description: Hyd Counterweight
3306 DI
35k lbs obo
40k lift
Updated: Thursday, June 11, 2026 08:37 AM
Location: Madera, California, USA
Seller: National Equipment, LLC
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: Tuesday, August 11, 2026 03:08 PM
Location: Acheson, Alberta, Canada
Seller: Arrow-West Equipment Ltd.
ROPS: Open
Serial Number: 54X00502
Description: 35k lbs obo
40k lift
Updated: Thursday, June 11, 2026 08:37 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: Tuesday, June 30, 2026 02:54 PM
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: 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: Friday, July 03, 2026 12:03 PM
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: Friday, July 03, 2026 12:03 PM
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: Friday, July 03, 2026 12:03 PM
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: Friday, July 03, 2026 12:03 PM
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: Thursday, August 27, 2026 08:06 AM
Location: Madera, California, USA
Seller: National Equipment, LLC
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, June 30, 2026 02:54 PM
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: Wednesday, August 12, 2026 12:55 PM
Location: Houston, Texas, USA
Seller: Worldwide Machinery
ROPS: Open
Serial Number: 1KW00148
Description: 3 units Caterpillar 561M sideboom for sale
Updated: Thursday, August 06, 2026 06:28 PM
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: Wednesday, August 12, 2026 12:53 PM
Location: Houston, Texas, USA
Seller: Worldwide Machinery
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: Wednesday, August 12, 2026 01:27 PM
Location: Houston, Texas, USA
Seller: Worldwide Machinery
2007 CATERPILLAR 561N
Pipelayers
QAR 394,667 ر.ق.
Rental Prices:
Weekly: QAR 10,524 ر.ق.
Monthly: QAR 23,680 ر.ق.
Hours: 8,970
ROPS: Open
Serial Number: CPH00158
Description: CAT 3126B Engine, 123 HP flywheel power, 40,000 lb Lifting Capacity.
Updated: Friday, August 14, 2026 09:20 AM
Location: North Battleford, Saskatchewan, Canada
Seller: Spence Heavy Equipment Sales & Rentals
2007 CATERPILLAR 561N
Pipelayers
QAR 394,667 ر.ق.
Rental Prices:
Weekly: QAR 10,524 ر.ق.
Monthly: QAR 23,680 ر.ق.
Hours: 9,128
ROPS: Open
Serial Number: CPH00159
Description: CAT 3126B Engine, 123 HP flywheel power, 40,000 lb Lifting Capacity.
Updated: Friday, August 14, 2026 09:20 AM
Location: North Battleford, Saskatchewan, Canada
Seller: Spence Heavy Equipment Sales & Rentals
Hours: 4,224
ROPS: Open
Serial Number: CPH00168
Description: ROPS, Hydraulic Pipelayer, Boom of choice. Well maintained rental fleet pipelayers. Detailed service records.
Updated: Wednesday, August 12, 2026 12:54 PM
Location: Salt Lake City, Utah, USA
Seller: Worldwide Machinery
ROPS: None
Serial Number: 64A211
Stock Number: 8838
Description: Piperlayer, Electric start, Hyd Counterweight
Powershift trans,
Updated: Thursday, June 11, 2026 08:37 AM
Location: Madera, California, USA
Seller: National Equipment, LLC
Hours: 376
ROPS: Open
Serial Number: 95N00232
Description: ROPS, Superior Conversion Hydraulic Package, Boom of Choice
Updated: Wednesday, August 12, 2026 12:57 PM
Location: Lubbock, Texas, USA
Seller: Worldwide Machinery
Hours: 1,244
ROPS: Open
Serial Number: 95N00219
Description: ROPS, Superior Conversion Hydraulic Package, Boom of Choice-Total of 4 units in excellent condition!!!
Updated: Wednesday, August 12, 2026 01:39 PM
Location: Lubbock, Texas, USA
Seller: Worldwide Machinery
ROPS: None
Pipeline Equipment Type: Pipelayer
Hydraulic Conversion: Yes
Description: MIDWEST CONVERSION, BOOM, GEARMATIC WINCH, GOOD CAT UNDER CARRIAGE, VERY NICE CALL FOR MORE INFO.
Updated: Wednesday, August 19, 2026 09:28 AM
Location: Santa Rosa, California, USA
Seller: Seaton Machinery
Hours: 555
Drive: Track
Horse Power: 130.5 kW
ROPS: Open
Serial Number: 16W0515
Stock Number: U0477
Description: 1987 CAT 571G Mechanical Pipelayer – Open machine equipped with Weldco‑Beales ROPS. Approximate operating weight: 52,440 lbs.
Outfitted with a 2...
Updated: Friday, August 21, 2026 11:52 AM
Location: Brownsville, Wisconsin, USA
Seller: Michels Equipment Sales
Hours: 1,364
ROPS: Open
Serial Number: 5ZD00247
Description: ROPS, Superior Conversion Hydraulic Package, Boom of Choice--2 Units available in excellent condition
Updated: Wednesday, August 12, 2026 01:35 PM
Location: Houston, Texas, USA
Seller: Worldwide Machinery
Hours: 1,551
ROPS: Open
Serial Number: 16W00511
Description: ROPS, Superior Conversion Hydraulic Package, Boom of Choice-9 Units available in excellent condition, contact us for a package price.
Updated: Wednesday, August 12, 2026 01:36 PM
Location: Houston, Texas, USA
Seller: Worldwide Machinery
Hours: 13,460
ROPS: Open
Serial Number: 45W384
Stock Number: BR260510.3CO
Engine Manufacturer: CATERPILLAR
Engine Model: 3306
Description: CATERPILLAR 571G PIPELAYER
1982 estimated
S/N 45W384
13,460 hrs on hour meter
Cat 3306 Engine
Located in Fort Stony Plain AB Canada
Call Be...
Updated: Thursday, August 13, 2026 11:36 AM
Location: Stony Plain, Alberta, Canada