Jacobsen Chief 1000
The Jacobsen Chief 1000 is a tractor produced by Jacobsen Lawn Tractors. It is equipped with a 390 cc 23.85 ci engine. The listed engine power is Gasoline (gross): 10 hp / 7.5 kW. Transmission: Peerless 2300.
Engine Power
Gasoline (gross): 10 hp / 7.5 kW
Fuel & Capacities
1.25 gal
4.7 L
Transmission
Peerless 2300
Overview
![]() | 1964 - 1971
Garden tractor |
|---|
Production | |
|---|---|
Manufacturer | Jacobsen |
Garden tractor | |
Built in Racine, Wisconsin, USA | |
Variants | |
|---|---|
Chief 1000 | gear |
Chief-O-Matic 1000 | hydrostatic |
Super Chief 1000 | hydrostatic |
Jacobsen Chief 1000 Engine | |
|---|---|
10HP Kohler 390cc 1-cyl gasoline | |
Fuel tank | 1.25 gal
4.7 L |
Engine details ... | |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Mechanical band brakes | |
Open operator station. |
Power Take-off (PTO) | |
|---|---|
Mid PTO | independent |
Clutch | manual |
Mid PTO Type | pulley |
Dimensions & Tires | |
|---|---|
Wheelbase | 42 inches
106 cm |
Front tire | 16x4.80-8 |
Rear tire | 22x6-12 |
Full dimensions and tires ... | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
![]() | |
Chief Tractor Attachments published in 1967, by Jacobsen | |
Chief "Easy-On" Attachments published in 1968, by Jacobsen | |
Chief Tractors published in 1964, by Jacobsen | |
Chief Lawn and Garden Tractor published in 1964, by Jacobsen | |
Chief Lawn and Garden Tractor published in 1964, by Jacobsen | |
Chief Tractors published in 1966, by Jacobsen | |
Chief Tractors published in 1967, by Jacobsen | |
Lawn and Garden Power Equipment published in 1965, by Jacobsen |
Engine
Engine Detail — 390 cc / 23.85 ci Gasoline
Manufacturer | Kohler K241 |
Fuel Type | Gasoline |
Configuration | 1-cylinder, air-cooled horizontal-shaft |
Displacement | 390 cc
23.85 ci |
Bore/Stroke | 3.25x2.875 inches
83 x 73 mm |
Power (gross) | 10 hp
7.5 kW |
Air cleaner | dry |
Rated RPM | 3600 |
Starter | electric |
Starter volts | 12 |
Oil capacity | 2.5 qts
2.4 L |
Transmission
Transmission options | |
|---|---|
3-speed gear | |
4-speed gear |
Transmission — Peerless
Transmission | Peerless |
Type | belt-driven gear |
Gears | 3 forward and 1 reverse |
Clutch | manual idler pulley |
Three-speed transmission used on the Chief 1000 in 1964 and 1965. | |
![]() | |
Transmission — Peerless 2300
Transmission | Peerless 2300 |
Type | belt-driven gear |
Gears | 4 forward and 1 reverse |
Clutch | manual idler pulley |
The four-speed transmission was introduced for the 1966 model year, Chief 1000 model 53037. | |
![]() | |
Dimensions
Jacobsen Chief 1000 Tires | |
|---|---|
Lawn/turf front | 16x4.80-8 |
Lawn/turf rear | 22x6-12 |
Lawn/turf front | 16x6.50-8 |
Lawn/turf rear | 22x8-12 |
Dimensions | |
|---|---|
Wheelbase | 42 inches
106 cm |
Length | 61 inches
154 cm |
Width | 33 inches
83 cm |
Height (steering wheel) | 39 inches
99 cm |
Height (hood) | 34.5 inches
87 cm |
Ground clearance | 11.75 inches (frame)
29 cm |
Clearance (front axle) | 8.75 inches
22 cm |
Clearance (rear axle) | 6.25 inches
15 cm |
Front tread | 30 inches
76 cm |
Rear tread | 31.5 inches
80 cm |
Attachments
Attachment overview | |
|---|---|
36" mid-mount mower deck | |
42" mid-mount mower deck | |
48" mid-mount mower deck | |
Snowblower | |
Blade | |
Front-end loader | |
A belt-driven 32-inch tiller, model 59713, was available. |
Photos
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Jacobsen Lawn Tractors Jacobsen Chief 1000.
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
Jacobsen Lawn Tractors Jacobsen Chief 1000 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Jacobsen Lawn Tractors Jacobsen Chief 1000.
Converted Equivalents:
Horsepower (HP)10 hp
Kilowatts (kW)7.5 kW
Metric Horsepower (PS / CV)10.1 PS
Related models
Jacobsen lawn tractors 80
- Power:
- 8
- Production years:
- 1977 - 1980
Jacobsen lawn tractors Chief 800
- Power:
- 8
- Production years:
- 1964 - 1969
Jacobsen lawn tractors Chief-O-Matic 800
- Power:
- 8
- Production years:
- 1966 - 1966
Jacobsen lawn tractors LT860
- Power:
- 8
- Production years:
- 1970 - 1976
Jacobsen lawn tractors LT885
- Power:
- 8
- Production years:
- 1970 - 1974





