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Blue Bird Sprint B51 T Self-propelled Petrol Lawn Mower - 4 in 1 - 51 cm Blade

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ID: K604245

EAN: 8025518405873

MPN: 885680

After-sales assistance & Spare parts
Blue Bird Sprint B51 T Self-propelled Petrol Lawn Mower - 4 in 1 - 51 cm Blade
2 bottles of 600 ml engine oil each2 bottles of 600 ml engine oil each
Replacement spark plug kitReplacement spark plug kit
Protection kit: gloves, googles, ear defenders, Agrieuro headscarf for free!Protection kit: gloves, googles, ear defenders, Agrieuro headscarf for free!
Oil engine replacement kitOil engine replacement kit
Blade sharpenerBlade sharpener
Grass collector
Side discharge
Mulching cutting system
Standard equipment
Rear discharge
Body material
Enamelled steel
Motor brand
Cubic capacity
173 cm³
Nominal power
6 HP
Max. recommended area
1500 m²
Cutting width
51 cm
Rear-wheel drive
Cutting adjustment
1 lever
High rear wheels
Product Features
Sprint B51 T
Body material:
Enamelled steel
Operating mode:
Spark ignition
Rear-wheel drive
Housing width:
55 cm
Grass collection system:
Standard equipment
Side discharge cutting system:
Standard equipment
Mulching cutting system:
Standard equipment
Cut with rear discharge:
Standard equipment
Cutting system:
4 in 1 - Collection + Rear discharge + Side discharge + Mulching
Collection bag capacity:
60 L
Max. recommended area :
1500 m²
Recoil start:
Starting mode:
Manufacturing country:
Motor data
Motor brand:
Motor type:
Cubic capacity:
173 cm³
No. of cylinders:
Nominal power:
6 HP
Rated power (HP):
4 HP
Power supply:
Overhead valve OHV
Engine lubrication system:
Oil bath
Noise level:
96 dB(A)
Manufacturing country:
Transmission data
Gear shifting system:
Single speed
No. of forward speeds:
Wheel drive:
Operating mode:
Lever on the handlebar
Cutting data
Body material:
Enamelled steel
Cutting width:
51 cm
Finned-shape blade:
Blade type:
Safety blade brake:
Cutting adjustment :
1 lever
Max. cutting height:
75 mm
Min. cutting height:
25 mm
No. of cutting positions:
Washing joint:
Cutting width:
51 cm
Collection bag:
Standard equipment
Grass discharge side deflector:
Recoil start system (with rope):
Rear wheels size:
180 mm
Front wheels size:
205 mm
High rear wheels:
Wheels mounted on ball bearings:
Wheel Type:
ABS pattern
Rubber-coated soft grip:
Folding/removable handle/s:
Free gifts/extra features
Mulching kit:
On standard equipment
Engine maintenance kit:
For free
Engine oil bottle for free:
Instructions manual:
Dimensions and logistics
Product dimensions in cm (L x W x H):
180x55x120 cm
Net weight:
35 Kg
On pallet
Original packaging/s dimensions in cm (L x W x H):
92x43x57 cm
Gross weight (packaging included) :
36.5 Kg
Assembly time:
15 minutes
Prompt Delivery
17 items in stock
Free Shipping
Estimated delivery: 24/06/2024 - 26/06/2024
€ 430,80
VAT Included

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Blue Bird Sprint B51 T self-propelled petrol lawn mower

The Blue Bird Sprint B51 T self-propelled petrol lawn mower is designed for the most demanding hobbyists who are looking for a good quality/price ratio equipment.

The enamelled steel housing gives this lawn mower high sturdiness and impact resistance.

Equipped with a producer-manufactured 173 cc Ducar DV170 engine featuring 6 Hp of nominal power.

The wheels are made of ABS and mounted on sealed ball bearings.

Equipped with a 51 cm blade and centralised cutting height, the machine can be adjusted in 7 different positions from 25 to 75 mm.

Cutting Systems:

  • Grass collection system
  • Mulching (with proper specific blade)
  • Rear discharge
  • Side discharge

This lawn mower is suitable for surfaces up to 1300 s.q. m. and provided with a large 60 L grass collector.

173 cc BBI engine

The producer-manufactured engine guarantees high performances and it is suitable for works that require high reliability and durability, thanks to its remarkable 173 cc.


Engine type: 4-Stroke, single cylinder
Cylinder type: aluminium
Cubic capacity: 173 cc
Fuel: petrol
Max. rpm: 2800 rpm
Starting: manual

Nominal power: 6.0 Hp
The correct term would be "Commercial” Power, meaning the standard definition used until a few years ago by all well-known engine manufacturers.

* This technical feature is the one indicated in the main sales channels, even if it is higher than the real power of the engine.

Rated power: 4 Hp (at 2800 rpm)
It refers to the real power of the engine. This is the power indicated as official in the manual or in the technical data of the engine manufacturer.

* This technical feature may vary from a an engine model to another according to the rotation speed provided by the manufacturer.

Steel blade and housing

Extremely sturdy, reinforced enamelled steel housing for a long service life.

Quick washing joint, which allows cleaning the housing quickly.

Abs front bumper that further protects the already sturdy housing.

Focus on the 51 cm steel blade

Rear-wheel drive

Rear-wheel drive (Self-propelled).

Equipped with a sturdy belt drive with gearbox.

It allows the Operator to mow the grass effortlessly, optimising the machine traction and forward efficiency.

Rear wheels diameter: 255 mm

Front wheels diameter: 202 mm

Focus on the abs wheels

Focus on the intermediate drive belt (engine/drive) perfectly closed and protected by the proper black cover.

Centralised cutting height adjustment

The lawn mower is equipped with 7 cutting height adjustments, from 25 mm to 75 mm.

The centralised cutting height adjustment is incredibly fast and intuitive.

Simply operate the proper lever to lift the machine.

Cutting systems: grass collection


The lawn mower is equipped with a 60 L hybrid grass collector, very easy to remove and empty.

The lower part is made of plastic, which gives strength and sturdiness, avoiding the canvas to tear if in contact with the lawn.

Convenient handle placed on the upper part of the grass collector to make it easy to remove and empty when full.

Grass collector full level indicator: the red switch rises when the grass collector is full.

Cutting systems: rear discharge


This system allows mowing grass without using the grass collector, discharging the grass clippings directly from the back of the lawn mower.

Simply remove the grass collector and the rear discharge will automatically operate.

Cutting systems: mulching


This system allows cutting grass without catching it inside the collector, and crushing the clippings into a fine powder before dropping them on the lawn.

How to convert the lawn mower for the mulching cutting system:

  • Remove the grass collector
  • Enter the mulching plug supplied
  • Lower the rear deflector to operate the mulching cutting system.


This grass mowing system allows crushing grass clippings and dropping them on the ground. The resulting grass particles are so small, they will be barely noticeable on the lawn. This eliminates the problem of its disposal (reducing any effort and shortening the time-saving). Moreover, grass clippings will break down into nutrients and water for the lawn (grass is 80% water) and will thus ensure a perfectly balanced biological cycle. However, it is worth remembering that, to ensure the greatest mulching results, the lawn should be irrigated and the grass needs cutting at least once a week.

Cutting systems: side discharge


This system allows mowing grass without collecting the clippings inside the grass collector (it is also possible to collect grass a bit higher than normal, due to the high disposal capacity of the side discharge deflector).

Leaving the mulching plug entered, in order not to occlude the rear discharge of the grass, simply lift the black cover on the housing side and enter the side deflector supplied with a simple gesture.

Controls and adjustments

Heavy-duty ergonomic handlebar with soft grip.

Coated handlebar for optimal working comfort.

Easy and user-friendly controls placed on the handlebar.

Blade engagement lever (in front of the handlebar)

Adjustments available:

Cutting height adjustment lever.

Handlebar tilt adjustment:

Free items & Standard equipment

1° GIFT: spare parts and maintenance kit for petrol engines

Spare parts and accessory kit for the maintenance of petrol engines.

WARNING: this set is not suitable for other brands or models on market. We do not provide different kits from the ones offered on our website.

The kit includes:

  • Professional spark plug for the engine.
  • Multi tool spark plug wrench. Specific for lawn mowers - rough cut mowers - scythe mowers - etc.
  • Specific syringe for oil suction.
  • Waste oil collection bottle for easy waste oil disposal.
  • Funnel for oil draining and refilling.

2° GIFT: protection kit


Protective earmuffs to work with maximum comfort.

Ear protection must be performed correctly in every working condition. In this case, the earmuffs provided on standard kit are specifically designed to protect the operator against the noise coming from the brush cutter.

Protective goggles that can be used as an alternative to the visor mask.

Protective mask goggles in polycarbonate with CE certificate,equipped with anti-fog and anti-scratch panoramic screen. The ventilation is ensured thanks to the holes made on the frame to avoid obfuscation and to improve comfort of use.

AgriEuro headscarf 100% cotton

Cotton gloves with rubber waves, for greater comfort and a secure and stable grip on the equipment

3° GIFT: engine oil

FOR FREE: two sae 15W 40 600 ml oil bottles. Specific lubricant for 4-stroke engine-powered gardening machinery featuring up to 10 Hp. Good cleansing and dispersion.

4° GIFT: sharpener for lawn mower blades

The sharpener allows you to sharpen the blades of your lawn mower in a few minutes.

It is very easy to use since it is only necessary to attach it to your screwdriver / drill and then it will be ready to use.

Thanks to its small size, you won’t even need to remove the blade from the lawn mower, thus ensuring an even faster maintenance.

Free items included

The lawn mower is shipped in its original packaging

60 L grass collector

The Instructions manual is included in the package.

Mulching plug

Side deflector

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