Lanz Bulldog D8531

The Lanz Bulldog D8531 is a tractor produced by Lanz. It is equipped with a 628.5 ci 10.3 L engine. The listed engine power is Diesel (listed): 34.3 hp / 25.6 kW. Transmission: gear. Drive type: 2WD.

Engine Power

Diesel (listed): 34.3 hp / 25.6 kW

Drive & Traction

2WD

Fuel & Capacities

Diesel

Transmission

gear

Overview

	1935 - 1955 D85 Series

Production
Manufacturer	Lanz
Built in Mannheim, Baden-Württemberg, Germany

Variants
D8500	3-speed
D8506	6-speed
D8511	combination model for road and field use, front-axle springs
D8531	high-speed road model
D8539	high-speed road model with solid cab

Lanz D8531 Engine
Lanz 10.3L 1-cyl diesel
Engine details ...

Lanz D8531 Transmission
6-speed
Transmission details ...

Lanz D8531 Power
Engine	34.3 hp 25.6 kW

Mechanical
Drive	2WD

Dimensions & Tires
Full dimensions and tires ...

Engine

Engine Detail — 628.5 ci / 10.3 L Diesel

Manufacturer	Lanz
Fuel Type	Diesel
Configuration	1-cylinder, liquid-cooled
Displacement	628.5 ci 10.3 L
Bore/Stroke	8.858x10.24 inches 225 x 260 mm
Power	34.3 hp 25.6 kW
Rated RPM	540

Transmission

Transmission — gear

Transmission	gear
Gears	6 forward

Dimensions

Lanz D8531 Tires

Dimensions

Recommended Implements & Sizing Guide

Engineering recommendations for Lanz Bulldog D8531 based on its 34.3 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm)	Medium Duty	Standard utility farm tillage.
Rotary Cutter / MowerMowing & Clearing	5 ft (60 in)1.5 m	Medium Duty	Pasture maintenance and weeds up to 1.5" diameter.
Rotary TillerSeedbed Prep	54 to 60 in135 - 150 cm	Medium Duty	Thorough seedbed preparation in orchards and vegetable plots.
Disc HarrowSecondary Tillage	5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片)	Light Duty	Small acreage soil break-up and secondary aeration.

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 Lanz Bulldog D8531.

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