AllTruckData
Comparison · 4×2 tractor unit · long haul at 19.3 t

MAN TGX 18.580 4x2, tractor unit (2019–2023) vs MAN TGX 18.640 4x2

MAN TGX 18.580 4x2, tractor unit (2019–2023)

2019–2023 · 427 kW
31.2l/100 km
median; 29.1–37.6 across 139 declared configurations

MAN TGX 18.640 4x2

2019–2023 · 471 kW
31.1l/100 km
median; 29.3–36.9 across 78 declared configurations
MAN TGX 18.580 4x2, tractor unit (2019–2023) and MAN TGX 18.640 4x2 side by side
SpecificationMAN TGX 18.580 4x2, tractor unit (2019–2023)MAN TGX 18.640 4x2
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2019–2023Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power427 kWDeclared471 kWDeclared
Engine displacement15.3 litresDeclared15.3 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI C, EURO VI D, EURO VI ERegisteredEURO VI C, EURO VI D, EURO VI ERegistered
Gross vehicle weight18,000–21,000 kgRegisteredmedian 20,500 kg, across 12 type-approval versions and 3 records without one19,000–21,000 kgRegisteredmedian 20,500 kg, across 6 type-approval versions
Kerb weight7,954–9,063 kgRegisteredmedian 8,322 kg, over 16 registrations8,143–8,834 kgRegisteredmedian 8,313 kg, over 10 registrations
Wheelbase3,600–3,900 mmRegisteredmedian 3,600 mm, over 16 registrations3,600–3,900 mmRegisteredmedian 3,900 mm, over 10 registrations
Overall length5,930–6,280 mmRegisteredmedian 5,980 mm, over 16 registrations5,980–6,280 mmRegisteredmedian 6,280 mm, over 10 registrations
Overall height3,880–3,950 mmRegisteredmedian 3,900 mm, over 9 registrations3,870–3,960 mmRegisteredmedian 3,910 mm, over 9 registrations
Declared fuel, long haul31.2 l/100 km Declaredmedian; 29.1–37.6 l/100 km across 139 declared configurations31.1 l/100 km Declaredmedian; 29.3–36.9 l/100 km across 78 declared configurations
CO₂ per tonne-km42.33 g Declaredmedian; 39.42–51.01 g42.14 g Declaredmedian; 39.68–49.99 g

Fuel and CO₂: long haul at 19.3 t, 2022 declarations.

What the numbers actually say

There is 0.1 l/100 km between these two (0.3%). That is inside the 10% tolerance of declared figures, so on fuel alone neither is the better choice: at 120,000 km a year and an assumed £1.40 a litre the gap would be about 120 litres a year (£168). The declared figures for one of them alone span 8.5 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

TGX 18.580 4x2, tractor unit (2019–2023) full specificationTGX 18.640 4x2 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
MAN TGX 18.580 4x2, tractor unit (2019–2023)37,440 litres
£52,416 at the assumed price
MAN TGX 18.640 4x237,320 litres
£52,248 at the assumed price
At 120,000 km a year and an assumed £1.40 a litre; the price is an assumption, not one we track.