Tractor Reference

John Deere 3030 Tractor Specs (1978-1979)

John Deere 3030 tractor specifications for 1978-1979, including the 5.4 L diesel, Hi-Lo transmission, independent PTO, closed-center hydraulics, and literature routes.

John Deere 3030 Overview

John Deere 3030 tractor in a rural farm setting.

Built from 1978 through 1979, the John Deere 3030 is listed with a 329 cu in (5.4 L) diesel engine and a Hi-Lo transmission. Published records distinguish gross and net engine-power figures, so the labels remain intact instead of becoming a single vague horsepower number.

The 3030 is also listed with independent 540/1000 PTO, closed-center hydraulics, and a Category II rear hitch. The exact tractor's serial number, transmission, hydraulic equipment, PTO shaft, and fitted wheels still matter when applying a specification, servicing the tractor, or ordering parts.

John Deere's official manual and catalog service is linked alongside model-specific technical and parts-catalog pointers. These links help find matching literature; they are not a reason to apply an unseen procedure or parts number to every 3030.

Years1978-1979
Engine329 ci 5.4 L
TransmissionHi-Lo
Rear PTO540/1000
Weight7297 to 8069 pounds
Engine power93.8 gross hp; 84.5 net hp
HydraulicsClosed center; 12.4 gpm (46.9 L/min)
Rear hitchCategory II; 7,452 lb (3,380 kg) listed lift

John Deere 3030 Quick Answers

  • What engine is in a John Deere 3030?The John Deere 3030 is listed with a 329 cu in (5.4 L) diesel at 2,500 rpm. Published figures are 93.8 gross hp (69.9 kW) and 84.5 net hp (63.0 kW), which should not be merged into one unlabeled rating.
  • What transmission is listed for the 3030?The published transmission is Hi-Lo with 12 forward and 6 reverse gears and a dry-disc clutch. Confirm the installed drivetrain before using service information or selecting parts.
  • What PTO does the John Deere 3030 use?The 3030 is listed with independent 540/1000 PTO. The published 540-rpm setting is 2,170 engine rpm; confirm the actual PTO equipment before implement setup.
  • What hydraulic system is listed?Published specifications list closed-center hydraulics with 12.4 gpm (46.9 L/min) pump flow and 2,248 psi (155 bar) pressure. Verify installed valves, remotes, and equipment before diagnosis or parts work.
  • What is the rear lift capacity?The published listing gives a Category II rear hitch with 7,452 lb (3,380 kg) rear lift. Hitch equipment and measurement conventions matter, so use the matching literature for a specific implement decision.
  • Which manuals are useful for a 3030?John Deere's official Manuals and Training service is the best starting point for current document and catalog access. A separate commercial TM-4277 technical-manual listing and a 3030/3130 parts-catalog pointer are also linked as research routes; match the exact tractor before use.

Engine and Power

The John Deere 3030 is listed with a 329 cu in (5.4 L) diesel at 2,500 rpm. Its published gross and net figures are 93.8 hp and 84.5 hp respectively, so retain the label when comparing power information.

Diesel engine

Displacement329 ci 5.4 L
Fuel Systemdirect injection
Compression16.8:1
Rated Rpm2500
Engine Oil Capacity12.2 qts 11.5 L
Coolant Capacity20.1 qts 19.0 L

Manufacture years

1978-1979

Transmission

The published 3030 drivetrain is a 12F/6R Hi-Lo transmission with a dry-disc clutch. Identify the installed drivetrain and serial number before treating a shift, fluid, repair, or parts detail as a match.

Hi-Lo

NameHi-Lo
Gears12 forward and 6 reverse
Clutchdry disc

PTO and Hitch

The 3030 is listed with independent 540/1000 PTO and a published 540-rpm setting at 2,170 engine rpm. Confirm the actual shaft and equipment before selecting an implement or service part.

Rear PTO

independent

Rear PTO type

540/1000

Engine RPM

540@2170

Rear hitch

II

Rear lift

7452 lbs 3380 kg

Hydraulics

Published specifications list closed-center hydraulics, 12.4 gpm (46.9 L/min) pump flow, and 2,248 psi (155 bar) pressure. Installed valves and remote equipment must be checked on the tractor itself.

Type

closed center

Capacity

15 gal 56.8 L

Pressure

2248 psi 155.0 bar

Pump flow

12.4 gpm 46.9 lpm

Fluids, Battery, and Service Facts

Published capacities include 28 gal (106.0 L) of fuel, 12.2 qt (11.5 L) of engine oil, 20.1 qt (19.0 L) of coolant, and 15 gal (56.8 L) for the hydraulic system. Use official or complete matching literature for fluids, grades, intervals, and procedures.

Fuel tank

28 gal 106.0 L

Hydraulic system

15 gal 56.8 L

Tires and Dimensions

Tire and dimension values can vary by wheel, axle, and configuration.

Wheelbase

97 inches 246 cm

Weight

7297 to 8069 pounds

Manuals and Documents

Start with John Deere's official Manuals and Training service to locate currently available manuals and parts catalogs. Use the model and serial number to narrow the result before relying on a document.

The linked TM-4277 technical-manual listing and 3030/3130 parts-catalog pointer are useful leads for research. Neither link is reviewed manual-body evidence here, so use the complete, matching document for instructions, settings, or fitment decisions.

Reference page

  • John Deere Manuals and Trainingoperation, maintenance, and specifications

    Official John Deere route for operator, technical, and parts-catalog publications.

    Open John Deere manuals

Service manual

  • John Deere 3030 and 3130 technical manual TM-4277operation, maintenance, and specifications

    Commercial listing for 3030/3130 technical literature. Confirm exact tractor coverage before use.

    View technical manual

Parts catalog

  • John Deere 3030/3130 parts-catalog pointerparts matching

    Community catalog pointer; verify all numbers and serial coverage in matching John Deere literature.

    View parts-catalog pointer

Parts Checks Before Ordering

Start with the serial number, then identify the installed transmission, PTO, hydraulic-valve and remote arrangement, hitch, wheel equipment, and any front-drive equipment. The model name does not identify every 3030 configuration.

The 3030/3130 parts-catalog pointer is an assembly-research route only. Verify parts numbers and fitment in the matching John Deere catalog or complete literature before ordering.

  • John Deere 3030/3130 parts-catalog pointerCommunity-hosted pointer to a 3030/3130 parts catalog. Use it to identify the catalog family, then verify exact parts and serial coverage in matching John Deere literature.View parts-catalog pointer

Accuracy Note

Tractor specifications can vary by year, region, factory configuration, installed equipment, and later repairs. Match serial range, engine, transmission, PTO setup, and model code before ordering parts or doing service work.