Lanz Bulldog D9511

The Lanz Bulldog D9511 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): 44.1 hp / 32.9 kW. Transmission: gear.

Engine Power

Diesel (listed): 44.1 hp / 32.9 kW

Fuel & Capacities

Diesel

Transmission

gear

Overview

	1935 - 1955 D95 SeriesStandard-tread tractor D95 Series Standard-tread tractor

Production
Manufacturer	Lanz
Standard-tread tractor
Built in Mannheim, Baden-Württemberg, Germany

Variants
D9500	3-speed
D9506	6-speed
D9511	combination model for road and field use, front-axle springs
D9531	high-speed road model
D9539	high-speed road model with solid cab

Lanz D9511 Engine
Lanz 10.3L 1-cyl diesel
Engine details ...

Lanz D9511 Transmission
6-speed
Transmission details ...

Lanz D9511 Power
Engine	44.1 hp 32.9 kW

Mechanical
Two-wheel drive

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	44.1 hp 32.9 kW
Rated RPM	630

Transmission

Transmission — gear

Transmission	gear
Gears	6 forward

Dimensions

Lanz D9511 Tires

Dimensions

Photos

Lanz D9511 with Claas combine.

Recommended Implements & Sizing Guide

Engineering recommendations for Lanz Bulldog D9511 based on its 44.1 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	6 ft (72 in)1.8 m	Medium Duty	Medium pasture clearing; rear slip-clutch recommended.
Rotary TillerSeedbed Prep	66 to 72 in165 - 180 cm	Medium Duty	Standard utility tiller; slip clutch protection required.
Disc HarrowSecondary Tillage	7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙	Medium Duty	Field leveling and clod breaking behind plows.
Hay BalerHay & Forage	Small Square Baler (14x18")小方捆打捆机 (36x46 cm)	Medium Duty	Classic 2-string baler for horse and small livestock hay.

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 D9511.

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