1998-2000 John Deere LT133 / LT155 / LT166 Lawn Tractors Technical Manual
Technical reference covering LT133, LT155, and LT166 Lawn Tractors: Engine, electrical, and component systems. Includes diagnostic procedures and repair specifications
John Deere Models Covered & Key Technical Specifications
Models: John Deere LT133, John Deere LT155, John Deere LT166
Sub-models / Variants: 38 inch deck, 42 inch deck, 46 inch deck, 48C inch deck, Hydrostatic Transaxle, Gear Transaxle
Trade Names: Command LT, Command 15 QT, Vanguard V-Twin
Model Years: 1998–2000
Serial Numbers: S/N –125000, S/N 125001–
Technical Data:
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Engine LT133: 398 cc Kohler Command LT (13.0 hp), 1 cylinder
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Engine LT155: 426 cc Kohler Command 15 QT (15.0 hp), 1 cylinder
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Engine LT166: 480 cc Briggs & Stratton Vanguard V-Twin (16.0 hp), 2 cylinders
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Drive systems: Dana Spicer Heavy-Duty 4360 Gear Transaxle or Tuff Torq K51 Hydrostatic Transaxle
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Steering: Sector and Pinion, 38.1 cm (15 in.) turning radius
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Fuel capacity: 7.5 L (2.0 gal) unleaded gasoline, 87 Octane minimum
John Deere Manual Features & Content Preview
John Deere LT133, LT155, and LT166 Technical Manual (1998–2000)
- Complete 396-page OEM technical manual (Publication TM1695, September 2000 revision) documenting the entire 1998–2000 production run.
- Specific component teardown data for Kohler Command LT and Briggs & Stratton Vanguard V-Twin engine platforms.
- Features 64 component-location diagrams, 12 electrical schematics, and exhaustive torque-value tables for all major fasteners.
- Delivered as an instant PDF download right after checkout—fully indexed and searchable for fast access directly at your workbench.
Operational Data and System Layouts
When a mower is sitting in your bay, guesswork costs time. This factory reference breaks down the 1998–2000 LT-series lineup by system. Electrical wiring legends and troubleshooting charts are grouped directly alongside their physical components so you don't have to flip pages. Need engine baselines? Mechanics get immediate access to cylinder head clearances, piston ring end gaps, and carburetor inspection criteria. Separate drivetrain sections detail the exact operational parameters and fluid requirements for both the Dana Spicer 4360 gear transaxle and the Tuff Torq K51 hydrostatic drive.
Technical Specifications and Tolerances
Precision is everything during a rebuild. This manual delivers the hard data required for professional diagnostics and evaluations. It outlines specific OEM tolerances, such as the 6.982–7.000 mm intake valve stem outside diameter for Kohler units. Servicing the Vanguard system? You will find the exact 1.5-liter crankcase oil capacity (including filter change). Chassis mechanics are thoroughly mapped out, detailing the sector and pinion steering design alongside its 15-inch turning radius.
Working on heavy riding mowers and pressurized hydrostatic systems carries inherent physical risks. Always verify factory torque sequences, lifting points, and shop safety procedures before dismantling equipment. Ultimately, this digital reference provides the specific data needed to evaluate these machines safely and return them to original factory standards.
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