Machine models

Cat 318B L and 318B LN specifications

Entries in this reference
Listing-entry count
2

Short answer

Cat 318B L and 318B LN: full-size excavators.

Selected configuration figures
Configuration	Documented field and quantity
318B L	Gross Power 119 hp Operating Weight 40,521 lb
318B LN	Gross Power 119 hp Operating Weight 39,683 lb

318B L and 318B LN specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Cat	318B L and 318B LN	2	318B L and 318B LN

Boom/Stick Option (Hex) 1
Specification	318B L	318B LN
Max Cutting Height	28.19 ft	28.19 ft
Max Loading Height	18.87 ft	18.87 ft
Max Reach Along Ground	27.4 ft	27.4 ft
Max Vertical Wall Digging Depth	12.83 ft	12.83 ft
Max Digging Depth	18.41 ft	18.41 ft
Boom/Stick Option (Hex) 1	boom w/ stick 1800mm	boom w/ stick 1800mm

Dimensions and weight
Specification	318B L	318B LN
Ground Clearance	1.61 ft	1.61 ft
Height To Top Of Cab	9.81 ft	9.81 ft
Width To Outside Of Tracks	9.19 ft	8.17 ft
Length Of Track On Ground	10.72 ft	10.72 ft
Tail Swing Radius	8.04 ft	8.04 ft
Removal Counterweight Clearance	3.42 ft	3.42 ft

Undercarriage
Specification	318B L	318B LN
Track Gauge	7.22 ft	6.53 ft
Shoe Size	23.63 in	19.69 in
Max Travel Speed	2.86 mph	2.86 mph
Drawbar Pull	39,000 lb	39,000 lb

Engine
Specification	318B L	318B LN
Engine Model	3046T	3046T
Gross Power	119 hp	119 hp
Displacement	305 cu in	305 cu in
Bore	3.7 in	3.7 in
Stroke	4.8 in	4.8 in
Flywheel Power	115 hp	115 hp
Eec 80/1269	115 hp	115 hp
SAE J1349	115 hp	115 hp
ISO 9249	115 hp	115 hp

Operational
Specification	318B L	318B LN
Operating Weight	40,521 lb	39,683 lb
Fuel Capacity	74 gal	74 gal
Hydraulic System Fluid Capacity	49.7 gal	49.7 gal
Hydraulic System Relief Valve Pressure	4,980 psi	4,980 psi
Hydraulic Pump Flow Capacity	79.3 gpm	79.3 gpm

Weights
Specification	318B L	318B LN
Operating Weight	40,543 lb	40,260 lb
Operating Weight - Long Undercarriage	40,540 lb	40,540 lb
Operating Weight - Long Narrow Undercarriage	40,260 lb	40,260 lb

Hydraulic System
Specification	318B L	318B LN
Pilot System - Maximum Flow	4.2 gpm	4.2 gpm
Pilot System - Maximum Pressure	570 psi	570 psi
Maximum Pressure - Travel	4,980 psi	4,980 psi
Maximum Pressure - Swing	3,700 psi	3,700 psi
Maximum Pressure - Implements	4,980 psi	4,980 psi
Main Implement System - Maximum Flow (2x)	40 gpm	40 gpm
Boom Cylinder - Bore	5 in	5 in
Boom Cylinder - Stroke	47 in	47 in
Stick Cylinder - Bore	5.1 in	5.1 in
Stick Cylinder - Stroke	54 in	54 in
Bucket Cylinder - Bore	4.3 in	4.3 in
Bucket Cylinder - Stroke	41 in	41 in

Service Refill Capacities
Specification	318B L	318B LN
Cooling System	4.6 gal	4.6 gal
Fuel Tank	74 gal	74 gal
Final Drive - Each	0.7 gal	0.7 gal
Hydraulic Tank	27.7 gal	27.7 gal
Hydraulic System - Including Tank	49.7 gal	49.7 gal
Engine Oil	3.4 gal	3.4 gal
Swing Drive - Each	0.8 gal	0.8 gal

Drive
Specification	318B L	318B LN
Maximum Drawbar Pull	39,000 lb	39,000 lb
Travel Speed	2.9 mph	2.9 mph

Variants — Source comparison annotation
Source guide	Differing-field count reported
318B L and 318B LN	5

Ratios
Figure	318B L	318B LN
Engine horsepower per 1,000 lb of weight	2.9	3.0
Fuel tank per engine horsepower	0.62 gal	0.62 gal
Hydraulic power from the listed pump flow and relief pressure	230.4 hp	230.4 hp

Reference directory classification
Equipment group	full-size excavator

318B L and 318B LN: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	full-size excavator	Cat and the 318B L, 318B LN. That is too few titles to say what owners mostly ask about, so the most recent are listed instead	11

CAT 318bl Repower (Heavy Equipment Forums, 2026-08-17)
CAT 318bl Hydraulic Pump Not Destroking (Heavy Equipment Forums, 2024-08-24)
CAT 318bl Final Drive Seal Replacement (Heavy Equipment Forums, 2021-07-09)
CAT 318bl My2001 Wiring Confusion (Heavy Equipment Forums, 2021-04-04)

318B L and 318B LN: dated market and recall observations — Dated listing search
Date	Listing index	Equipment class	Names queried	Result
2026-09-24	MachineryTrader (machinerytrader.com)	full-size excavator	318B L, 318B LN	No matching offers in this snapshot

Dated CPSC search
Date	Database	Names queried	Result
2026-09-24	U.S. Consumer Product Safety Commission	Cat; 318B L, 318B LN	No matching recall in the stated search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Cat 318B L — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Cat 318B LN — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Cat 318B L and 318B LN — Heavy Equipment Forums. 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	11
Forum indexes	Heavy Equipment Forums
Search wording	the 318B L and 318B LN full-size excavator
Latest title quoted by the reference	CAT 318bl Repower

Cat 318B L and 318B LN: Configuration records

318B L

Specification	Source figure
Boom/Stick Option (Hex) 1
Max Vertical Wall Digging Depth	12.83 ft
Boom/Stick Option (Hex) 1	boom w/ stick 1800mm
Dimensions and weight
Height To Top Of Cab	9.81 ft
Width To Outside Of Tracks	9.19 ft
Length Of Track On Ground	10.72 ft
Tail Swing Radius	8.04 ft
Removal Counterweight Clearance	3.42 ft
Undercarriage
Shoe Size	23.63 in
Engine
Engine Model	3046T
Gross Power	119 hp
Displacement	305 cu in
Flywheel Power	115 hp
Bore	3.7 in
Stroke	4.8 in
Eec 80/1269	115 hp
ISO 9249	115 hp
SAE J1349	115 hp
Operational
Fuel Capacity	74 gal
Hydraulic System Fluid Capacity	49.7 gal
Hydraulic System Relief Valve Pressure	4,980 psi
Hydraulic Pump Flow Capacity	79.3 gpm
Weights
Operating Weight - Long Undercarriage	40,540 lb
Operating Weight - Long Narrow Undercarriage	40,260 lb
Hydraulic System
Maximum Pressure - Travel	4,980 psi
Maximum Pressure - Swing	3,700 psi
Pilot System - Maximum Flow	4.2 gpm
Pilot System - Maximum Pressure	570 psi
Maximum Pressure - Implements	4,980 psi
Main Implement System - Maximum Flow (2x)	40 gpm
Boom Cylinder - Bore	5 in
Boom Cylinder - Stroke	47 in
Stick Cylinder - Bore	5.1 in
Stick Cylinder - Stroke	54 in
Bucket Cylinder - Bore	4.3 in
Bucket Cylinder - Stroke	41 in
Service Refill Capacities
Fuel Tank	74 gal
Hydraulic Tank	27.7 gal
Hydraulic System - Including Tank	49.7 gal
Cooling System	4.6 gal
Engine Oil	3.4 gal
Final Drive - Each	0.7 gal
Swing Drive - Each	0.8 gal
Drive
Maximum Drawbar Pull	39,000 lb
Additional specifications
Max Cutting Height	28.19 ft
Max Loading Height	18.87 ft
Max Reach Along Ground	27.4 ft
Max Digging Depth	18.41 ft
Ground Clearance	1.61 ft
Drawbar Pull	39,000 lb
Max Travel Speed	2.86 mph
Track Gauge	7.22 ft
Operating Weight	40,521 lb
Travel Speed	2.9 mph

Source

318B LN

Specification	Source figure
Boom/Stick Option (Hex) 1
Max Vertical Wall Digging Depth	12.83 ft
Boom/Stick Option (Hex) 1	boom w/ stick 1800mm
Dimensions and weight
Height To Top Of Cab	9.81 ft
Width To Outside Of Tracks	8.17 ft
Length Of Track On Ground	10.72 ft
Tail Swing Radius	8.04 ft
Removal Counterweight Clearance	3.42 ft
Undercarriage
Shoe Size	19.69 in
Engine
Engine Model	3046T
Gross Power	119 hp
Displacement	305 cu in
Flywheel Power	115 hp
Bore	3.7 in
Stroke	4.8 in
Eec 80/1269	115 hp
ISO 9249	115 hp
SAE J1349	115 hp
Operational
Fuel Capacity	74 gal
Hydraulic System Fluid Capacity	49.7 gal
Hydraulic System Relief Valve Pressure	4,980 psi
Hydraulic Pump Flow Capacity	79.3 gpm
Weights
Operating Weight - Long Undercarriage	40,540 lb
Operating Weight - Long Narrow Undercarriage	40,260 lb
Hydraulic System
Maximum Pressure - Travel	4,980 psi
Maximum Pressure - Swing	3,700 psi
Pilot System - Maximum Flow	4.2 gpm
Pilot System - Maximum Pressure	570 psi
Maximum Pressure - Implements	4,980 psi
Main Implement System - Maximum Flow (2x)	40 gpm
Boom Cylinder - Bore	5 in
Boom Cylinder - Stroke	47 in
Stick Cylinder - Bore	5.1 in
Stick Cylinder - Stroke	54 in
Bucket Cylinder - Bore	4.3 in
Bucket Cylinder - Stroke	41 in
Service Refill Capacities
Fuel Tank	74 gal
Hydraulic Tank	27.7 gal
Hydraulic System - Including Tank	49.7 gal
Cooling System	4.6 gal
Engine Oil	3.4 gal
Final Drive - Each	0.7 gal
Swing Drive - Each	0.8 gal
Drive
Maximum Drawbar Pull	39,000 lb
Additional specifications
Max Cutting Height	28.19 ft
Max Loading Height	18.87 ft
Max Reach Along Ground	27.4 ft
Max Digging Depth	18.41 ft
Ground Clearance	1.61 ft
Drawbar Pull	39,000 lb
Max Travel Speed	2.86 mph
Track Gauge	6.53 ft
Operating Weight	39,683 lb
Travel Speed	2.9 mph

Source

Compare Cat 318B L, 318B LN

Boom/Stick Option (Hex) 1
Specification	318B L	318B LN
Max Cutting Height	28.19 ft	28.19 ft
Max Loading Height	18.87 ft	18.87 ft
Max Reach Along Ground	27.4 ft	27.4 ft
Max Vertical Wall Digging Depth	12.83 ft	12.83 ft
Max Digging Depth	18.41 ft	18.41 ft
Boom/Stick Option (Hex) 1	boom w/ stick 1800mm	boom w/ stick 1800mm

Dimensions and weight
Specification	318B L	318B LN
Ground Clearance	1.61 ft	1.61 ft
Height To Top Of Cab	9.81 ft	9.81 ft
Width To Outside Of Tracks	9.19 ft	8.17 ft
Length Of Track On Ground	10.72 ft	10.72 ft
Tail Swing Radius	8.04 ft	8.04 ft
Removal Counterweight Clearance	3.42 ft	3.42 ft

Undercarriage
Specification	318B L	318B LN
Track Gauge	7.22 ft	6.53 ft
Shoe Size	23.63 in	19.69 in
Max Travel Speed	2.86 mph	2.86 mph
Drawbar Pull	39,000 lb	39,000 lb

Engine
Specification	318B L	318B LN
Engine Model	3046T	3046T
Gross Power	119 hp	119 hp
Displacement	305 cu in	305 cu in
Bore	3.7 in	3.7 in
Stroke	4.8 in	4.8 in
Flywheel Power	115 hp	115 hp
Eec 80/1269	115 hp	115 hp
SAE J1349	115 hp	115 hp
ISO 9249	115 hp	115 hp

Operational
Specification	318B L	318B LN
Operating Weight	40,521 lb	39,683 lb
Fuel Capacity	74 gal	74 gal
Hydraulic System Fluid Capacity	49.7 gal	49.7 gal
Hydraulic System Relief Valve Pressure	4,980 psi	4,980 psi
Hydraulic Pump Flow Capacity	79.3 gpm	79.3 gpm

Weights
Specification	318B L	318B LN
Operating Weight - Long Undercarriage	40,540 lb	40,540 lb
Operating Weight - Long Narrow Undercarriage	40,260 lb	40,260 lb

Hydraulic System
Specification	318B L	318B LN
Pilot System - Maximum Flow	4.2 gpm	4.2 gpm
Pilot System - Maximum Pressure	570 psi	570 psi
Maximum Pressure - Travel	4,980 psi	4,980 psi
Maximum Pressure - Swing	3,700 psi	3,700 psi
Maximum Pressure - Implements	4,980 psi	4,980 psi
Main Implement System - Maximum Flow (2x)	40 gpm	40 gpm
Boom Cylinder - Bore	5 in	5 in
Boom Cylinder - Stroke	47 in	47 in
Stick Cylinder - Bore	5.1 in	5.1 in
Stick Cylinder - Stroke	54 in	54 in
Bucket Cylinder - Bore	4.3 in	4.3 in
Bucket Cylinder - Stroke	41 in	41 in

Service Refill Capacities
Specification	318B L	318B LN
Cooling System	4.6 gal	4.6 gal
Fuel Tank	74 gal	74 gal
Final Drive - Each	0.7 gal	0.7 gal
Hydraulic Tank	27.7 gal	27.7 gal
Hydraulic System - Including Tank	49.7 gal	49.7 gal
Engine Oil	3.4 gal	3.4 gal
Swing Drive - Each	0.8 gal	0.8 gal

Drive
Specification	318B L	318B LN
Maximum Drawbar Pull	39,000 lb	39,000 lb
Travel Speed	2.9 mph	2.9 mph

More in Cat: M315C/M316C/M318C, 317/317 GC/319, 320C–320C S.

Cat 318B L and 318B LN specifications

Sources for this page

Cat 318B L and 318B LN: Configuration records