Roper Rally GT250

The Roper Rally GT250 is a tractor produced by Roper Lawn Tractors. It is equipped with a 693 cc 42.33 ci engine. The listed engine power is Gasoline (listed): 18 hp / 13.4 kW. Transmission: Peerless 143.850-010.

Engine Power

Gasoline (listed): 18 hp / 13.4 kW

Fuel & Capacities

Gasoline

Transmission

Peerless 143.850-010

Overview

	1987 - 1989 Garden tractor

Production
Manufacturer	Roper
Garden tractor
Original price was $1,500 in 1989

Roper GT250 Engine
18HP Briggs & Stratton 693cc 2-cyl gasoline
Engine details ...

Roper GT250 Transmission
5-speed gear
Transmission details ...

Mechanical
Two-wheel drive
Manual steering
Open operator station.

Dimensions & Tires
Full dimensions and tires ...

Electrical
Ground	negative
Battery volts	12

Engine

Engine Detail — 693 cc / 42.33 ci Gasoline

Manufacturer	Briggs & Stratton 422707
Fuel Type	Gasoline
Configuration	2-cylinder, air-cooled vertical-shaft opposed twin
Displacement	693 cc 42.33 ci
Bore/Stroke	3.44x2.28 inches 87 x 58 mm
Power	18 hp 13.4 kW
Starter	electric
Starter volts	12

Transmission

Transmission — Peerless 143.850-010

Transmission	Peerless 143.850-010
Type	belt-driven gear
Gears	5 forward and 1 reverse

Dimensions

Roper GT250 Tires

Dimensions

Attachments

44" Mower deck
Type	mid-mount Roper
	3-blade
Cutting width	44 inches 111 cm

Photos

Roper Rally GT250 tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Roper Lawn Tractors Roper Rally GT250 based on its 18 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	1 to 2 Bottom (12")1 - 2 铧 (30 cm)	Light Duty	Ideal for garden plots and light sandy soil.
Rotary Cutter / MowerMowing & Clearing	4 ft (48 in)1.2 m	Light Duty	Pasture clipping and light brush under 1" diameter.
Rotary TillerSeedbed Prep	42 to 48 in105 - 120 cm	Light Duty	Covers compact tractor tire width.

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 Roper Lawn Tractors Roper Rally GT250.

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

Roper Lawn Tractors Roper Rally GT250 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Roper Lawn Tractors Roper Rally GT250.

Enter value:

Unit:

Converted Equivalents:

Horsepower (HP)18 hp

Kilowatts (kW)13.4 kW

Metric Horsepower (PS / CV)18.2 PS

Direct Competitor Comparison

Compare Roper Rally GT250 against same-era industry alternatives in the same horsepower class.

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