MTD 998
The MTD 998 is a tractor produced by Mtd Lawn Tractors. It is equipped with a 569 cc 34.75 ci engine. The listed engine power is Gasoline (listed): 18 hp / 13.4 kW. Transmission: Eaton.
Engine Power
Gasoline (listed): 18 hp / 13.4 kW
Fuel & Capacities
Gasoline
Transmission
Eaton
Overview
![]() | 1993 - 1995
900 SeriesGarden tractor
900 Series
Garden tractor |
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Production | |
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Manufacturer | MTD |
Garden tractor | |
MTD 998 Engine | |
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18HP Briggs & Stratton 569cc 2-cyl gasoline | |
Engine details ... |
MTD 998 Transmission | |
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hydrostatic | |
Transmission details ... |
Mechanical | |
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Two-wheel drive | |
Manual steering | |
Open operator station. |
Tractor hitch | |
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Rear Type | 0 OptOptional |
Power Take-off (PTO) | |
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Mid PTO | independent |
Clutch | manual |
Dimensions & Tires | |
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Full dimensions and tires ... |
Electrical | |
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Ground | negative |
Battery volts | 12 |
Engine
Engine Detail — 569 cc / 34.75 ci Gasoline
Manufacturer | Briggs & Stratton 350447 |
Fuel Type | Gasoline |
Configuration | 2-cylinder, air-cooled horizontal-shaft V-Twin |
Displacement | 569 cc
34.75 ci |
Bore/Stroke | 2.83x2.75 inches
72 x 70 mm |
Power | 18 hp
13.4 kW |
Starter | electric |
Starter volts | 12 |
MTD 998 Engine | |
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Transmission
Transmission — Eaton
Transmission | Eaton |
Type | shaft-driven hydrostatic |
Gears | infinite forward and reverse (2-range) |
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Dimensions
MTD 998 Tires |
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Dimensions |
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Attachments
50" Mower deck | |
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Type | mid-mount MTD |
3-blade with hydraulic lift | |
Cutting width | 50 inches
127 cm |
Photos
Recommended Implements & Sizing Guide
Engineering recommendations for Mtd Lawn Tractors MTD 998 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 Mtd Lawn Tractors MTD 998.
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
Mtd Lawn Tractors MTD 998 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Mtd Lawn Tractors MTD 998.
Converted Equivalents:
Horsepower (HP)18 hp
Kilowatts (kW)13.4 kW
Metric Horsepower (PS / CV)18.2 PS
Direct Competitor Comparison
Compare MTD 998 against same-era industry alternatives in the same horsepower class.
Current Model
Mtd Lawn Tractors
MTD 998
Engine Power:Gasoline (listed): 18 hp / 13.4 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester Type A 15HP
Engine Power:16.7
Production Years:1908 - 1911
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