Machine models

Cat M318C MH and M322C MH specifications

Entries in this reference
Listing-entry count
2

Short answer

Cat M318C MH and M322C MH: material handlers.

Selected configuration figures
Configuration	Documented field and quantity
M318C MH	Gross Power 159 hp Operating Weight W/O Attachment 47,311 lb
M322C MH	Gross Power 170 hp Operating Weight W/O Attachment 54,432 lb

M318C MH and M322C MH specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Cat	M318C MH and M322C MH	2	M318C MH and M322C MH

Boom/Stick Option (Mat) 1
Specification	M318C MH	M322C MH
Max Height	39.05 ft	40.69 ft
Max Reach Along Ground	34.45 ft	35.77 ft
Max Depth	6.89 ft	6.4 ft
Boom/Stick Option (Mat) 1	Boom length 6200mm Stick length 4900mm	Boom length 6800mm Stick length 4900mm

Dimensions and weight
Specification	M318C MH	M322C MH
Ground Clearance	0.96 ft	0.96 ft
Shipping Length	29.73 ft	32.42 ft
Undercarriage Width	9.81 ft	9.81 ft
Shipping Height	11.42 ft	11.46 ft
Height To Top Of Cab - Fixed Riser	10.6 ft	10.6 ft
Height To Top Of Cab - Hydraulic Riser Raised	18.48 ft	18.48 ft
Upperstructure Clearance	4.29 ft	4.29 ft
Tail Swing Radius	8.21 ft	9.03 ft

Wheel Undercarriage
Specification	M318C MH	M322C MH
Wheelbase	9.03 ft	9.03 ft
Width W/ Stabilizers On Ground	14.31 ft	14.31 ft
Tire Size	10.00-20	10-20 dual pneumatic
Steering Angle	35 degrees	35 degrees
Axel Oscillation	18 degrees	18 degrees

Engine
Specification	M318C MH	M322C MH
Number Of Cylinders	6	6
Engine Model	3056E DIT ATAAC	3056E DIT ATAAC
Gross Power	159 hp	170 hp
Net Power	151 hp	164 hp
Power Measured @	2,000 rpm	2,000 rpm
Displacement	366.2 cu in	366.2 cu in

Specification	M318C MH
Aspiration	Turbocharged

Operational
Specification	M318C MH	M322C MH
Operating Weight W/O Attachment	47,311 lb	54,432 lb
Fuel Capacity	101.8 gal	101.8 gal
Cooling System Fluid Capacity	10.4 gal	10.4 gal
Engine Oil Capacity	4.3 gal	4.3 gal
Hydraulic System Fluid Capacity	67.4 gal	92.5 gal
Alternator Supplied Amperage	75 amps	75 amps

Specification	M318C MH
Max Drawbar Pull	205.7 lb

Swing Mechanism
Specification	M318C MH	M322C MH
Swing Speed	10.5 rpm	10.5 rpm
Swing Torque	29,576 lb-ft	41,525 lb-ft

Transmission and speeds
Specification	M318C MH
Transmission Type	Hydrostatic

Specification	M318C MH	M322C MH
Number Of Forward Gears	2	2
Number Of Reverse Gears	2	2
Max Speed	15.6 mph	15.6 mph

Hydraulic
Specification	M318C MH	M322C MH
Pump Capacity	105.7 gpm	120.5 gpm
Relief Pressure	5,076 psi	5,076 psi

Variants — Source comparison annotation
Source guide	Differing-field count reported
M318C MH and M322C MH	17

Ratios
Figure	M318C MH	M322C MH
Engine horsepower per 1,000 lb of weight	3.2	3.0
Fuel tank per engine horsepower	0.67 gal	0.62 gal

Cat M318C MH and M322C MH: material handler

M318C MH and M322C MH: owner reports

Related account: “Speed, engine rpm and a cab that will not raise”: M316D, M318D, and M322D.

M318C MH and M322C MH: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	material handler	Cat and the M318C, M322C line that the M318C MH, M322C MH belongs to (no title names the exact model). That is too few titles to say what owners mostly ask about, so the most recent are listed instead	4

CAT M322c Numb No Lift Nor Swing (Heavy Equipment Forums, 2026-05-02)
CAT M318c Cab Problems (Heavy Equipment Forums, 2024-12-13)
I Need Caterpillar M318c Electrical Schematic (Heavy Equipment Forums, 2023-08-07)
CAT M318c Panel Monitor (Heavy Equipment Forums, 2021-02-23)

Used market for the M318C MH and M322C MH — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Cat material handler	2

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
M318C MH	1	2006	None shown	None shown	None shown	26,185
M322C MH	1	2005	$54,655	$54,655	$54,655	None shown

M318C MH and M322C MH: recall reference — Dated CPSC search
Search date	Database	Names queried	Search result
2026-09-24	U.S. Consumer Product Safety Commission	Cat together with the material handler M318C MH, M322C MH	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Cat M318C MH — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Cat M322C MH — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Cat M318C MH and M322C MH — Heavy Equipment Forums. Observed 2026-09-24.
Used-market listings	Used-market listings: MachineryTrader listings for Cat M318C MH — MachineryTrader. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Cat — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Recorded observations — Forum-title snapshot
Observation field	Recorded value
Title count	4
Forum indexes	Heavy Equipment Forums
Search wording	the M318C MH and M322C MH material handler
Latest title quoted by the reference	CAT M322c Numb No Lift Nor Swing

Cat M318C MH and M322C MH: Configuration records

M318C MH

Specification	Source figure
Boom/Stick Option (Mat) 1
Max Height	39.05 ft
Max Reach Along Ground	34.45 ft
Max Depth	6.89 ft
Boom/Stick Option (Mat) 1	Boom length 6200mm Stick length 4900mm
Dimensions and weight
Ground Clearance	0.96 ft
Shipping Length	29.73 ft
Undercarriage Width	9.81 ft
Shipping Height	11.42 ft
Height To Top Of Cab - Fixed Riser	10.6 ft
Height To Top Of Cab - Hydraulic Riser Raised	18.48 ft
Upperstructure Clearance	4.29 ft
Tail Swing Radius	8.21 ft
Engine
Engine Model	3056E DIT ATAAC
Gross Power	159 hp
Net Power	151 hp
Power Measured @	2,000 rpm
Displacement	366.2 cu in
Number Of Cylinders	6
Aspiration	Turbocharged
Operational
Operating Weight W/O Attachment	47,311 lb
Fuel Capacity	101.8 gal
Cooling System Fluid Capacity	10.4 gal
Engine Oil Capacity	4.3 gal
Hydraulic System Fluid Capacity	67.4 gal
Alternator Supplied Amperage	75 amps
Max Drawbar Pull	205.7 lb
Swing Mechanism
Swing Speed	10.5 rpm
Swing Torque	29,576 lb-ft
Transmission and speeds
Transmission Type	Hydrostatic
Number Of Forward Gears	2
Number Of Reverse Gears	2
Max Speed	15.6 mph
Hydraulic
Pump Capacity	105.7 gpm
Relief Pressure	5,076 psi
Wheel Undercarriage
Wheelbase	9.03 ft
Width W/ Stabilizers On Ground	14.31 ft
Tire Size	10.00-20
Steering Angle	35 degrees
Axel Oscillation	18 degrees

Source

M322C MH

Specification	Source figure
Boom/Stick Option (Mat) 1
Max Height	40.69 ft
Max Reach Along Ground	35.77 ft
Max Depth	6.4 ft
Boom/Stick Option (Mat) 1	Boom length 6800mm Stick length 4900mm
Dimensions and weight
Ground Clearance	0.96 ft
Shipping Length	32.42 ft
Undercarriage Width	9.81 ft
Shipping Height	11.46 ft
Height To Top Of Cab - Fixed Riser	10.6 ft
Height To Top Of Cab - Hydraulic Riser Raised	18.48 ft
Upperstructure Clearance	4.29 ft
Tail Swing Radius	9.03 ft
Engine
Engine Model	3056E DIT ATAAC
Gross Power	170 hp
Net Power	164 hp
Power Measured @	2,000 rpm
Displacement	366.2 cu in
Number Of Cylinders	6
Operational
Operating Weight W/O Attachment	54,432 lb
Fuel Capacity	101.8 gal
Cooling System Fluid Capacity	10.4 gal
Engine Oil Capacity	4.3 gal
Hydraulic System Fluid Capacity	92.5 gal
Alternator Supplied Amperage	75 amps
Swing Mechanism
Swing Speed	10.5 rpm
Swing Torque	41,525 lb-ft
Transmission and speeds
Number Of Forward Gears	2
Number Of Reverse Gears	2
Max Speed	15.6 mph
Hydraulic
Pump Capacity	120.5 gpm
Relief Pressure	5,076 psi
Wheel Undercarriage
Wheelbase	9.03 ft
Width W/ Stabilizers On Ground	14.31 ft
Tire Size	10-20 dual pneumatic
Steering Angle	35 degrees
Axel Oscillation	18 degrees

Source

Compare Cat M318C MH, M322C MH

Boom/Stick Option (Mat) 1
Specification	M318C MH	M322C MH
Max Height	39.05 ft	40.69 ft
Max Reach Along Ground	34.45 ft	35.77 ft
Max Depth	6.89 ft	6.4 ft
Boom/Stick Option (Mat) 1	Boom length 6200mm Stick length 4900mm	Boom length 6800mm Stick length 4900mm

Dimensions and weight
Specification	M318C MH	M322C MH
Ground Clearance	0.96 ft	0.96 ft
Shipping Length	29.73 ft	32.42 ft
Undercarriage Width	9.81 ft	9.81 ft
Shipping Height	11.42 ft	11.46 ft
Height To Top Of Cab - Fixed Riser	10.6 ft	10.6 ft
Height To Top Of Cab - Hydraulic Riser Raised	18.48 ft	18.48 ft
Upperstructure Clearance	4.29 ft	4.29 ft
Tail Swing Radius	8.21 ft	9.03 ft

Wheel Undercarriage
Specification	M318C MH	M322C MH
Wheelbase	9.03 ft	9.03 ft
Width W/ Stabilizers On Ground	14.31 ft	14.31 ft
Tire Size	10.00-20	10-20 dual pneumatic
Steering Angle	35 degrees	35 degrees
Axel Oscillation	18 degrees	18 degrees

Engine
Specification	M318C MH	M322C MH
Number Of Cylinders	6	6
Engine Model	3056E DIT ATAAC	3056E DIT ATAAC
Gross Power	159 hp	170 hp
Net Power	151 hp	164 hp
Power Measured @	2,000 rpm	2,000 rpm
Displacement	366.2 cu in	366.2 cu in

Operational
Specification	M318C MH	M322C MH
Operating Weight W/O Attachment	47,311 lb	54,432 lb
Fuel Capacity	101.8 gal	101.8 gal
Cooling System Fluid Capacity	10.4 gal	10.4 gal
Engine Oil Capacity	4.3 gal	4.3 gal
Hydraulic System Fluid Capacity	67.4 gal	92.5 gal
Alternator Supplied Amperage	75 amps	75 amps

Swing Mechanism
Specification	M318C MH	M322C MH
Swing Speed	10.5 rpm	10.5 rpm
Swing Torque	29,576 lb-ft	41,525 lb-ft

Transmission and speeds
Specification	M318C MH	M322C MH
Number Of Forward Gears	2	2
Number Of Reverse Gears	2	2
Max Speed	15.6 mph	15.6 mph

Hydraulic
Specification	M318C MH	M322C MH
Pump Capacity	105.7 gpm	120.5 gpm
Relief Pressure	5,076 psi	5,076 psi

More in Cat: 330D MH fronts/magnet hydraulics/serial breaks, M325C LMH/11 related models specs, 345B L MH.

Cat M318C MH and M322C MH specifications

Cat M318C MH and M322C MH: material handler

M318C MH and M322C MH: owner reports

Sources for this page

Cat M318C MH and M322C MH: Configuration records