Technical register for agricultural, construction and commercial machinery · sourced data
StartTrucks over 7.5 tMack › KK 300

Mack KK 300

Built: 1944-1944 · Series: Other models

More machines from model year 1944

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The Mack KK 300 is a machine built by Mack. Production: 1944. The engine has 6 cylinders. The machine is 2,500 mm wide. The unladen weight is 14,280 kg. The wheelbase measures 4,900 mm. The gross vehicle weight is 14,280 kg. The machine runs on 6 wheels. Unladen weight across the Mack range ranges from 2,370 to 19,510 kg; the KK 300 sits in the upper part of that range with 14,280 kg. Its immediate neighbours are the B42S below it with 14,000 kg and the B87SX above it with 14,501 kg. 137 Mack models across 57 series are on record. The model is listed under Trucks over 7.5 t. 8 verified figures from 1 source are on file.

Mack – further truck models: collective page for the US brand outside the named series, from the B and R models through CH and Granite to TerraPro, five- to eight-cylinder engines, gross weights up to 28.5 tonnes

This page gathers trucks from the US brand Mack that the register could not assign to a named series – from 1950s-to-1970s classics such as the B-61 and LTL, through the R and CH series, to newer models like Granite, Pinnacle and TerraPro. Mack was founded in 1900 in Brooklyn, later moved production to Allentown, Pennsylvania, and has belonged to the Volvo Group since AB Volvo's 2001 acquisition; the bulldog hood ornament has been the brand's mark since the 1930s. The model codes usually denote series and axle configuration, with R and CH covering long-haul tractor units and Granite and TerraPro covering construction and waste-collection vehicles.

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The register lists 81 versions here with five- to eight-cylinder engines, displacements up to 17.0 litres, kerb weights up to around 19.5 t at gross vehicle weights of 4,804 to 28,500 kg, lengths of 5,530 to 12,000 mm and widths of 2,240 to 2,900 mm.

Mack has been a fixture in North American long-haul transport, construction and waste management for over a century, competing there chiefly with Kenworth, Peterbilt, Freightliner and International; outside North America the brand is far less common, which affects parts sourcing and workshop availability.

On classic B, R and LTL models, check frame corrosion, the condition of leaf springs and drum brakes, and the originality of engine and gearbox; on the newer CH, Granite and TerraPro model years, check the turbocharger, exhaust after-treatment and wear on the automated manual gearboxes. Parts for current series run through the Mack dealer network, while historic models are sourced through specialist American classic-truck dealers.

Sources: Kennwerte der Modelle Mack (weitere Modelle), Mack Trucks (Hersteller)

Technical data

Engine

Cylinders6correct

Dimensions and weights

Width2,500 mmcorrect
Wheelbase4,900 mmcorrect
Unladen weight14,280 kgcorrect
Gross vehicle weight14,280 kgcorrect

Drivetrain and chassis

Wheels6correct

Frequently asked questions

How much does the Mack KK 300 weigh?

The unladen weight is 14,280 kg.

What is the gross vehicle weight of the Mack KK 300?

14,280 kg.

What engine does the Mack KK 300 have?

6 cylinders.

When was the Mack KK 300 built?

Production years: 1944.

What to check before buying

  • Check the hour meter against the service records — a replaced instrument is the most common gap.
  • Compare the data plate and chassis number with the papers.
  • Check the weights in the papers against the figures here — attachments change them.
  • Ask about parts availability for this build year — the running costs hang on it.

A general list for this type of machine — no substitute for an inspection or an appraiser.

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This page carries 8 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.

The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.

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Other models in this series

Sources: [1]

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