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Caterpillar D7G SA Special Application

The Caterpillar D7G SA Special Application is a tractor produced by Caterpillar. It is equipped with a 638 ci 10.5 L engine. The listed engine power is Diesel (listed): 250 hp / 186.4 kW. Transmission: 6 forward and 4 reverse. Drive type: crawler. Operating weight: 39500 to 40700 pounds.

Engine Power
Diesel (listed): 250 hp / 186.4 kW
Drive & Traction
crawler
Fuel & Capacities
155 gal 586.7 L
Transmission
6 forward and 4 reverse
Operating Weight
40700 lbs 18461 kg

Overview

Caterpillar D7G SA Special Application tractor photo
1980 - 1986 Agricultural Crawler tractor
Production
Manufacturer
Caterpillar
Agricultural Crawler tractor
Original price was $166,210 in 1985
Variants
D7G
bulldozer
Caterpillar D7G SA Engine
Caterpillar 10.5L 6-cyl diesel
Engine details ...
Caterpillar D7G SA Transmission
6-speed gear
Transmission details ...
Caterpillar D7G SA Power
Engine
250 hp 186.4 kW
Drawbar (claimed)
200 hp 149.1 kW
Mechanical
Drive
crawler
ROPS. Cab available with air-conditioning.
Capacity
Fuel
155 gal 586.7 L
Hydraulic system
24 gal 90.8 L
Hydraulics
Type
open center
Capacity
24 gal 90.8 L
Pressure
2250 psi 155.1 bar
Valves
3
Pump flow
32 gpm 121.1 lpm
Dimensions & Tracks
Weight
39500 to 40700 pounds
22-inch tracks
Full dimensions and tracks ...
Electrical
Charging system
alternator
Battery volts
12
References
D7G SA Special Application references literature
Tracteurs Caterpillar d4E, d5B, D6D, D7G Applications Speciales published in 1980
Special Application Tractors published in 1982, by Caterpillar
Implement Matching for Cat Tillage Tractors published in 1983, by Caterpillar

Engine

Engine Detail — 638 ci / 10.5 L Diesel

Manufacturer
Caterpillar 3306
Configuration
turbocharged aftercooled diesel, 6-cylinder, liquid-cooled inline
Displacement
638 ci 10.5 L
Bore/Stroke
4.75x6.00 inches 121 x 152 mm
Power
250 hp 186.4 kW
Rated RPM
2000
Starter
electric
Starter volts
24
Oil capacity
29 qts 27.4 L
Coolant capacity
48 qts 45.4 L

Transmission

Transmission — 6 forward and 4 reverse gear

Type
gear
Gears
6 forward and 4 reverse
Clutch
wet disc
Oil capacity
64 qts 60.6 L
D7G SA Special Application gear speeds

Dimensions

Caterpillar D7G SA Tracks
Width
22 inches 55 cm
Length on ground
107 inches 271 cm
Area on ground
4704 in² 3.0 m²
Width
24 inches 60 cm
Width
26 inches 66 cm
Dimensions
Length
179 inches 454 cm
Width
103 inches 261 cm
Shipping weight
39500 lbs 17917 kg
Operating weight
40700 lbs 18461 kg
Ground clearance
13.75 inches 34 cm
Gauge
78 inches 198 cm
Caterpillar D7G SA Height
Steering wheel
89 inches 226 cm
Hood
85 inches 215 cm
ROPS
126 inches 320 cm
Exhaust
129 inches 327 cm

Photos

Caterpillar D7G SA Special Application tractor photo

Caterpillar D7G SA Special Application tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Caterpillar D7G SA Special Application based on its 250 HP power envelope and ASAE agricultural standards.

Implement & OperationRecommended SizeWorkload RatingEngineering Notes
Moldboard PlowPrimary Tillage
8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁Commercial / Field ScaleHigh horsepower articulated/4WD field plowing.
Rotary Cutter / MowerMowing & Clearing
15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼Commercial / Field ScaleLarge commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep
90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机Commercial / Field ScaleDeep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage
24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙Commercial / Field ScaleBroad-acre grain tillage for high-drawbar tractors.
Hay BalerHay & Forage
Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)Commercial / Field ScaleHigh-capacity commercial forage harvesting (1000 RPM PTO).
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Caterpillar D7G SA Special Application.

Estimated Continuous Field Runtime: 11.9 hrs

Approximately 11.9 hours of continuous field operation at ~75% rated power on a full tank (155 gal / 586.7 L).

Estimated 75% Load Fuel Burn~13 gal/hr (49.2 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours

Caterpillar D7G SA Special Application Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Caterpillar D7G SA Special Application.

Converted Equivalents:

Horsepower (HP)250 hp
Kilowatts (kW)186.4 kW
Metric Horsepower (PS / CV)253.5 PS

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