Machine models

Cat D3G, D3G LGP, and D3G XL specifications

Entries in this reference
Listing-entry count
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Short answer

Cat D3G, D3G LGP, and D3G XL: crawler dozers.

Selected configuration figures
Configuration	Documented field and quantity
D3G	Net Power 70 hp Operating Weight 16,227 lb
D3G LGP	Net Power 70 hp Operating Weight 17,160 lb
D3G XL	Net Power 70 hp Operating Weight 16,227 lb

D3G, D3G LGP, and D3G XL specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Cat	D3G, D3G LGP, and D3G XL	3	D3G, D3G LGP, and D3G XL

Dimensions and weight
Specification	D3G	D3G LGP	D3G XL
Length W/ Blade	13.19 ft	13.19 ft	13.19 ft
Width Over Tracks	6.09 ft	7.58 ft	6.08 ft
Height To Top Of Cab	8.92 ft	9.09 ft	8.92 ft
Length Of Track On Ground	10.19 ft	6.75 ft	6.75 ft
Ground Clearance	1.23 ft	1.22 ft	1.22 ft
Length W/O Blade	10.19 ft	10.18 ft	10.18 ft

Undercarriage
Specification	D3G	D3G LGP	D3G XL
Track Gauge	4.76 ft	5.5 ft	4.76 ft
Standard Shoe Size	16 in	25 in	16 in
Ground Pressure	6.27 psi	4.24 psi	6.27 psi
Ground Contact Area	2,586 in2	4,045 in2	2,586 in2
Number Of Shoes Per Side	39	39	39
Number Of Track Rollers Per Side	6	6	6

Specification	D3G
Length - Track On Ground - Lgp	81 in
Length - Track On Ground - Xl	81 in
Ground Contact Area - Xl	2,586 in2
Shoe Width - Lgp	25 in
Shoe Width - Xl	16 in
Track Gauge - Lgp	66 in
Track Gauge - Xl	57 in
Ground Pressure - Lgp	4.24 psi
Ground Contact Area - Lgp	4,045 in2
Ground Pressure - Xl	6.27 psi

Ripper
Specification	D3G
Ripper Type	Parallelogram
Number Of Shanks	3
Maximum Digging Depth	13.3 in
Maximum Reach - Ground Line	29.1 in
Maximum Ground Clearance Under Tip	16.2 in
Overall Width	67.3 in
Attachment height	6.5 in
Weight	1,241 lb

Engine
Specification	D3G	D3G LGP	D3G XL
Engine Model	3046T	3046T	3046T
Gross Power	77 hp	77 hp	77 hp
Net Power	70 hp	70 hp	70 hp
Displacement	305 cu in	305 cu in	305 cu in

Specification	D3G	D3G LGP
Power Measured @	2,200 rpm	2,200 rpm

Specification	D3G
Bore	3.7 in
Stroke	4.7 in
Eec 80/1269	70 hp
SAE J1349	70 hp
ISO 9249	70 hp
Power - Gross	77 hp
Power - Net	70 hp
Caterpillar	70 hp

Operational
Specification	D3G	D3G LGP	D3G XL
Operating Weight	16,227 lb	17,160 lb	16,227 lb
Fuel Capacity	43.6 gal	43.6 gal	43.6 gal
Cooling System Fluid Capacity	5.5 gal	5.5 gal	5.5 gal
Engine Oil Capacity	3.4 gal	3.4 gal	3.4 gal
Hydraulic Fluid Capacity	12 gal	12 gal	12 gal
Final Drives Fluid Capacity	3.6 gal	5.4 gal	3.6 gal

Specification	D3G LGP	D3G XL
Operating Voltage	12 V	12 V
Alternator Supplied Amperage	120 amps	120 amps

Transmission and speeds
Specification	D3G	D3G LGP	D3G XL
Transmission Type	dual path, closed loop hydrostatic	Hydrostatic	Hydrostatic
Number Of Forward Gears	1	1	1
Number Of Reverse Gears	1	1	1
Max Speed - Forward	5.6 mph	5.6 mph	5.6 mph
Max Speed - Reverse	6 mph	6 mph	6 mph

Specification	D3G
Drive Pumps	2
Track Motors	2
Relief Valve Settings	6,380 psi
Maximum Travel Speed - Forward	5.6 mph
Maximum Travel Speed - Reverse	6 mph

Weights
Specification	D3G
Operating Weight - Lgp	17,160 lb
Operating Weight - Xl	16,227 lb

Hydraulic System
Specification	D3G	D3G LGP	D3G XL
Relief Valve Pressure	8.9 psi	2,900 psi	2,900 psi
Pump Flow Capacity	2,900 gpm	16.1 gpm	16.1 gpm

Blade
Specification	D3G
Blade Width - Xl	96.9 in
Blade Width - Intermediate	115 in
Blade Width - Lgp	123.9 in
Blade Height - Xl	36.8 in
Blade Height - Intermediate	33.2 in
Blade Height - Lgp	33.2 in
Blade Capacity - Xl	1.9 yd3
Blade Capacity - Intermediate	1.9 yd3
Blade Capacity - Lgp	2 yd3
Digging Depth - Xl	21.8 in
Digging Depth - Intermediate	20.7 in
Digging Depth - Lgp	20.7 in

Standard Blade
Specification	D3G	D3G LGP	D3G XL
Blade width	8.1 ft	10.4 ft	8.1 ft
Blade height	36.9 in	33.2 in	36.8 in
Capacity	1.9 yd3	2 yd3	1.9 yd3
Blade Angle (Both Directions)	25 degrees	25 degrees	25 degrees
Cutting Depth	21.9 in	20.7 in	21.8 in

Service Refill Capacities
Specification	D3G
Cooling System	5.5 gal
Fuel Tank	43.6 gal
Final Drive - Each - Lgp	5.4 gal
Final Drive - Each - Xl	3.6 gal
Crankcase - With Filter	3.4 gal
Transmission - Hydraulic Tank	12 gal

Standards
Specification	D3G
ROPS	SAE J397-OCT95, SAE J1040-MAY94, ISO 3471-94, ISO 3164-95
FOPS	SAE J231-JAN81, ISO 3449-92

Hydraulic Controls
Specification	D3G
Pump Output	16.1 gpm
Relief Valve Setting	2,900 psi

Winch
Specification	D3G
Winch Drive	Hydrostatic
Control	Pilot hydraulic
Overall Width	29.2 in
Drum Diameter	10 in
Drum Width	10.8 in
Rope Diameter - Recommended	0.7 in
Weight	1,345 lb
Rope Diameter - Optional	0.8 in
Speed	Variable
Winch Length	27.8 in
Throat Clearance	6.8 in
Drum Capacity - Recommended Cable	371 ft
Drum Capacity - Optional Cable	257 ft
Maximum Line Pull - Bare Drum	40,000 lb
Maximum Line Pull - Full Drum	25,000 lb
Maximum Line Speed - Bare Drum	132 ft/min
Maximum Line Speed - Full Drum	207 ft/min

Variants — Source comparison annotation
Source guide	Differing-field count reported
D3G, D3G LGP, and D3G XL	93

Ratios
Figure	D3G	D3G LGP	D3G XL
Engine horsepower per 1,000 lb of weight	56.4	4.1	4.3
Pump flow per engine horsepower	41.43 gpm	0.23 gpm	0.23 gpm
Fuel tank per engine horsepower	0.62 gal	0.62 gal	0.62 gal

History and service record of D3G, D3G LGP, and D3G XL

Owner-reported hydrostat problem. A D3G owner on the Heavy Vehicle Inspection community said his machine had always needed a good rev before it would start moving, after which he could throttle back to the speed he wanted, and another poster noted that a D5G owner has reported problems when alternator output is down a bit. Cat D3G hydrostat tracking problem, Heavy Vehicle Inspection community.
Gross versus net horsepower on the D3G. Cat's D3G specifications list the 3046T engine at 57 kW (77 hp) gross but 52 kW (70 hp) net at the flywheel with fan, air cleaner, muffler and alternator fitted, with no derating needed up to 2,300 m (7,500 ft). D3G Track-Type Tractor specifications, Caterpillar.
Implement hydraulics. The D3G's implement pump delivers 61.1 L/min (16.1 gpm) with a 20,000 kPa (2,900 psi) relief setting and control positions for lift, tilt, angle and ripper cylinders. D3G Track-Type Tractor specifications, Caterpillar.
Final drives isolated from the track frames. The final drive is a double reduction with an outboard planetary gear set, mounted independently of the track frames so machine weight and ground shock loads do not reach it. D3G Track-Type Tractor specifications, Caterpillar.

D3G, D3G LGP, and D3G XL: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
TractorByNet and Heavy Equipment Forums	crawler dozer	Cat and the D3G line that the D3G, D3G LGP, D3G XL belongs to (no title names the exact model)	58

Topics named by those titles
Title topic	Titles
hydraulics	9
transmission and drive	7
brakes and steering	2

Topic in the title	Threads	Share of matching threads
hydraulics	9	16%
transmission and drive	7	12%
brakes and steering	2	3%
electrical and sensors	2	3%
fuel system	2	3%

CAT D3g Access Leaking Hydraulic Line (TractorByNet, 2026-05-27)
CAT D3g XL Final Drive Leak (Heavy Equipment Forums, 2026-03-08)
CAT D3g XL Wont Move Dash Light On (Heavy Equipment Forums, 2025-10-21)
CAT D3g Parking Brake Will Not Release (Heavy Equipment Forums, 2025-08-01)

Used market for the D3G, D3G LGP, and D3G XL — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Cat crawler dozer	54

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
D3G	30	2001 to 2007	$13,000	$1,300,000	$48,950	3,800
D3G LGP	14	2001 to 2007	$32,900	$1,300,000	$49,675	4,253
D3G XL	10	2002 to 2006	$29,750	$87,500	$49,000	3,800

D3G, D3G LGP, and D3G XL: 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 crawler dozer D3G, D3G LGP, D3G XL	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Cat D3G — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Cat D3G LGP — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Cat D3G XL — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: TractorByNet thread index for Cat D3G, D3G LGP, and D3G XL — TractorByNet. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Cat D3G, D3G LGP, and D3G XL — Heavy Equipment Forums. Observed 2026-09-24.
Published history	Published history Source: Cat D3G hydrostat tracking problem, Heavy Vehicle Inspection community — Heavyvehicleinspection. Observed 2026-09-30.
Published history	Published history Source: D3G Track-Type Tractor specifications, Caterpillar — Urentit. Observed 2026-09-30.
Used-market listings	Used-market listings: MachineryTrader listings for Cat D3G — 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.

D3G undercarriage selection also changes the service quantities

Caterpillar’s D3G Specalog AEHQ5555 identifies a dual-path, closed-loop hydrostatic transmission, with separate variable-displacement drive pumps and track motors. Full-power turns and counterrotation are features of that drive arrangement; the steering control is not selecting a conventional geared transmission ratio. A drive complaint should distinguish straight travel from turning behavior and identify which track is affected before it is described simply as a weak engine.

The brochure separately specifies XL and LGP undercarriages and gives different final-drive refill quantities for them. Those service capacities are not interchangeable just because both machines carry a D3G badge. It also states the included equipment for operating weight: blade, canopy ROPS, alarm, operator, fluids and full fuel.

For a used machine with additional rear equipment or a different operator enclosure, start with that equipment inventory instead of assuming the brochure’s base weight already includes it.

Cat D3G, D3G LGP, and D3G XL: Configuration records

D3G

Specification	Source figure
Dimensions and weight
Ground Clearance	1.23 ft
Height To Top Of Cab	8.92 ft
Length W/ Blade	13.19 ft
Width Over Tracks	6.09 ft
Length W/O Blade	10.19 ft
Undercarriage
Track Gauge	4.76 ft
Number Of Shoes Per Side	39
Ground Contact Area	2,586 in2
Ground Pressure	6.27 psi
Number Of Track Rollers Per Side	6
Standard Shoe Size	16 in
Length - Track On Ground - Lgp	81 in
Length - Track On Ground - Xl	81 in
Ground Contact Area - Xl	2,586 in2
Shoe Width - Lgp	25 in
Shoe Width - Xl	16 in
Track Gauge - Lgp	66 in
Track Gauge - Xl	57 in
Ground Pressure - Lgp	4.24 psi
Ground Contact Area - Lgp	4,045 in2
Ground Pressure - Xl	6.27 psi
Engine
Net Power	70 hp
Power Measured @	2,200 rpm
Displacement	305 cu in
Gross Power	77 hp
Engine Model	3046T
Power - Gross	77 hp
Power - Net	70 hp
Bore	3.7 in
Stroke	4.7 in
Eec 80/1269	70 hp
SAE J1349	70 hp
ISO 9249	70 hp
Caterpillar	70 hp
Operational
Operating Weight	16,227 lb
Fuel Capacity	43.6 gal
Cooling System Fluid Capacity	5.5 gal
Engine Oil Capacity	3.4 gal
Hydraulic Fluid Capacity	12 gal
Final Drives Fluid Capacity	3.6 gal
Transmission and speeds
Transmission Type	dual path, closed loop hydrostatic
Number Of Forward Gears	1
Number Of Reverse Gears	1
Max Speed - Forward	5.6 mph
Max Speed - Reverse	6 mph
Drive Pumps	2
Track Motors	2
Relief Valve Settings	6,380 psi
Maximum Travel Speed - Forward	5.6 mph
Maximum Travel Speed - Reverse	6 mph
Weights
Operating Weight - Xl	16,227 lb
Operating Weight - Lgp	17,160 lb
Standard Blade
Blade width	8.1 ft
Blade height	36.9 in
Capacity	1.9 yd3
Blade Angle (Both Directions)	25 degrees
Cutting Depth	21.9 in
Ripper
Ripper Type	Parallelogram
Number Of Shanks	3
Maximum Digging Depth	13.3 in
Maximum Reach - Ground Line	29.1 in
Maximum Ground Clearance Under Tip	16.2 in
Attachment height	6.5 in
Blade
Blade Width - Xl	96.9 in
Blade Width - Intermediate	115 in
Blade Width - Lgp	123.9 in
Blade Height - Xl	36.8 in
Blade Height - Intermediate	33.2 in
Blade Height - Lgp	33.2 in
Blade Capacity - Xl	1.9 yd3
Blade Capacity - Intermediate	1.9 yd3
Blade Capacity - Lgp	2 yd3
Digging Depth - Xl	21.8 in
Digging Depth - Intermediate	20.7 in
Digging Depth - Lgp	20.7 in
Service Refill Capacities
Cooling System	5.5 gal
Fuel Tank	43.6 gal
Final Drive - Each - Lgp	5.4 gal
Final Drive - Each - Xl	3.6 gal
Crankcase - With Filter	3.4 gal
Transmission - Hydraulic Tank	12 gal
Standards
ROPS	SAE J397-OCT95, SAE J1040-MAY94, ISO 3471-94, ISO 3164-95
FOPS	SAE J231-JAN81, ISO 3449-92
Hydraulic Controls
Pump Output	16.1 gpm
Relief Valve Setting	2,900 psi
Winch
Winch Drive	Hydrostatic
Control	Pilot hydraulic
Drum Diameter	10 in
Drum Width	10.8 in
Rope Diameter - Recommended	0.7 in
Rope Diameter - Optional	0.8 in
Speed	Variable
Winch Length	27.8 in
Throat Clearance	6.8 in
Drum Capacity - Recommended Cable	371 ft
Drum Capacity - Optional Cable	257 ft
Maximum Line Pull - Bare Drum	40,000 lb
Maximum Line Pull - Full Drum	25,000 lb
Maximum Line Speed - Bare Drum	132 ft/min
Maximum Line Speed - Full Drum	207 ft/min
Additional specifications
Length Of Track On Ground	10.19 ft
Relief Valve Pressure	8.9 psi
Pump Flow Capacity	2,900 gpm
Overall Width	67.3 in
Weight	1,241 lb

Source

D3G LGP

Specification	Source figure
Dimensions and weight
Ground Clearance	1.22 ft
Height To Top Of Cab	9.09 ft
Length W/ Blade	13.19 ft
Width Over Tracks	7.58 ft
Length W/O Blade	10.18 ft
Undercarriage
Track Gauge	5.5 ft
Number Of Shoes Per Side	39
Ground Contact Area	4,045 in2
Ground Pressure	4.24 psi
Number Of Track Rollers Per Side	6
Standard Shoe Size	25 in
Engine
Net Power	70 hp
Power Measured @	2,200 rpm
Displacement	305 cu in
Gross Power	77 hp
Engine Model	3046T
Operational
Operating Weight	17,160 lb
Fuel Capacity	43.6 gal
Cooling System Fluid Capacity	5.5 gal
Engine Oil Capacity	3.4 gal
Operating Voltage	12 V
Alternator Supplied Amperage	120 amps
Hydraulic Fluid Capacity	12 gal
Final Drives Fluid Capacity	5.4 gal
Transmission and speeds
Transmission Type	Hydrostatic
Number Of Forward Gears	1
Number Of Reverse Gears	1
Max Speed - Forward	5.6 mph
Max Speed - Reverse	6 mph
Standard Blade
Blade width	10.4 ft
Blade height	33.2 in
Capacity	2 yd3
Blade Angle (Both Directions)	25 degrees
Cutting Depth	20.7 in
Additional specifications
Length Of Track On Ground	6.75 ft
Relief Valve Pressure	2,900 psi
Pump Flow Capacity	16.1 gpm

Source

D3G XL

Specification	Source figure
Dimensions and weight
Ground Clearance	1.22 ft
Height To Top Of Cab	8.92 ft
Length W/ Blade	13.19 ft
Width Over Tracks	6.08 ft
Length W/O Blade	10.18 ft
Undercarriage
Track Gauge	4.76 ft
Number Of Shoes Per Side	39
Ground Contact Area	2,586 in2
Ground Pressure	6.27 psi
Number Of Track Rollers Per Side	6
Standard Shoe Size	16 in
Engine
Net Power	70 hp
Displacement	305 cu in
Gross Power	77 hp
Engine Model	3046T
Operational
Operating Weight	16,227 lb
Fuel Capacity	43.6 gal
Cooling System Fluid Capacity	5.5 gal
Engine Oil Capacity	3.4 gal
Operating Voltage	12 V
Alternator Supplied Amperage	120 amps
Hydraulic Fluid Capacity	12 gal
Final Drives Fluid Capacity	3.6 gal
Transmission and speeds
Transmission Type	Hydrostatic
Number Of Forward Gears	1
Number Of Reverse Gears	1
Max Speed - Forward	5.6 mph
Max Speed - Reverse	6 mph
Standard Blade
Blade width	8.1 ft
Blade height	36.8 in
Capacity	1.9 yd3
Blade Angle (Both Directions)	25 degrees
Cutting Depth	21.8 in
Additional specifications
Length Of Track On Ground	6.75 ft
Relief Valve Pressure	2,900 psi
Pump Flow Capacity	16.1 gpm

Source

Compare Cat D3G, D3G LGP, D3G XL

Dimensions and weight
Specification	D3G	D3G LGP	D3G XL
Length W/ Blade	13.19 ft	13.19 ft	13.19 ft
Width Over Tracks	6.09 ft	7.58 ft	6.08 ft
Height To Top Of Cab	8.92 ft	9.09 ft	8.92 ft
Length Of Track On Ground	10.19 ft	6.75 ft	6.75 ft
Ground Clearance	1.23 ft	1.22 ft	1.22 ft
Length W/O Blade	10.19 ft	10.18 ft	10.18 ft

Undercarriage
Specification	D3G	D3G LGP	D3G XL
Track Gauge	4.76 ft	5.5 ft	4.76 ft
Standard Shoe Size	16 in	25 in	16 in
Ground Pressure	6.27 psi	4.24 psi	6.27 psi
Ground Contact Area	2,586 in2	4,045 in2	2,586 in2
Number Of Shoes Per Side	39	39	39
Number Of Track Rollers Per Side	6	6	6

Engine
Specification	D3G	D3G LGP	D3G XL
Engine Model	3046T	3046T	3046T
Gross Power	77 hp	77 hp	77 hp
Net Power	70 hp	70 hp	70 hp
Displacement	305 cu in	305 cu in	305 cu in

Operational
Specification	D3G	D3G LGP	D3G XL
Operating Weight	16,227 lb	17,160 lb	16,227 lb
Fuel Capacity	43.6 gal	43.6 gal	43.6 gal
Cooling System Fluid Capacity	5.5 gal	5.5 gal	5.5 gal
Engine Oil Capacity	3.4 gal	3.4 gal	3.4 gal
Hydraulic Fluid Capacity	12 gal	12 gal	12 gal
Final Drives Fluid Capacity	3.6 gal	5.4 gal	3.6 gal

Transmission and speeds
Specification	D3G	D3G LGP	D3G XL
Transmission Type	dual path, closed loop hydrostatic	Hydrostatic	Hydrostatic
Number Of Forward Gears	1	1	1
Number Of Reverse Gears	1	1	1
Max Speed - Forward	5.6 mph	5.6 mph	5.6 mph
Max Speed - Reverse	6 mph	6 mph	6 mph

Hydraulic System
Specification	D3G	D3G LGP	D3G XL
Relief Valve Pressure	8.9 psi	2,900 psi	2,900 psi
Pump Flow Capacity	2,900 gpm	16.1 gpm	16.1 gpm

Standard Blade
Specification	D3G	D3G LGP	D3G XL
Blade width	8.1 ft	10.4 ft	8.1 ft
Blade height	36.9 in	33.2 in	36.8 in
Capacity	1.9 yd3	2 yd3	1.9 yd3
Blade Angle (Both Directions)	25 degrees	25 degrees	25 degrees
Cutting Depth	21.9 in	20.7 in	21.8 in

More in Cat: 935C Series II, D3C LGP-S Series II–D5B LGP specs, 943 LGP/953 LGP.

Cat D3G, D3G LGP, and D3G XL specifications

History and service record of D3G, D3G LGP, and D3G XL

Sources for this page

D3G undercarriage selection also changes the service quantities

Cat D3G, D3G LGP, and D3G XL: Configuration records