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Mack RD800 Tandem Axle Tractor - Green over Black

Maker:  Heavy Haul Replicas
Model No:  129D-4
Scale:  1:50
Review Date:  November 2023

Heavy Haul Replicas Index
Historic Haulage Index

Cranes Etc Model Rating
Packaging   (max 10) 7
Detail   (max 30) 26
Features   (max 20) 18
Quality   (max 25) 23
Price   (max 15) 10
Overall   (max 100) 84%


Mack RD800 Tandem Axle Tractor - Green over Black Video 
Mack branded box.
Impressive looking model.
Very good steering angle.
Hand painting on the real truck is copied beautifully.
Chains on the ballast block.
Profile view.
Detailed engine.
Cab doors open.
Posed with a Diecast Masters trailer.

This review is of a model of a Mack RD800 Tandem Axle Tractor. 

It is in a green over black colour scheme.


It comes in an outer shipping carton which encloses a Mack branded box.  The model is held within a pair of factory sealed expanded polystyrene trays. 

There were no missing parts or defects on the review model.

Included is a plastic pointer and a bag containing spare mirrors is a thoughtful touch.

There is no information about the real truck or model.


The chassis is very detailed with the engine and gearbox visible, and hoses run to the rear axles.  The tyres have a good tread pattern which is similar on all wheels. The plastic wheels are very detailed with flexible rubber mud flaps.

At the front the radiator has a silver bulldog mascot on top, and the grille looks great.  There is no number plate as this is a generic model.  There is an Oversize Load sign.  The sides of the hood have modelled tie-down straps.  The engine under the hood is made up of a number of different parts.

The cab has very thin windscreen wipers and chrome mirrors, and there are air horns and lights on the roof.  The interior is also detailed. 

Textured steps lead up to the cab and they are formed into the fuel tanks. 

Behind the cab there is a single exhaust stack, and an etched screen protects the rear window.  There is a modelled winch with silver coloured rope and a tiny hook.

There are lines for connection to a trailer and textured half wheel arches.  The fifth wheel has a locking lever.  At the rear there are lights with plastic lenses and the mud flaps have a Mack logo.


The front wheels steer, with the steering being 'notched' rather than variable. The range of movement is very good.  There is working sprung suspension on all axles.

The twin engine covers open to reveal the detailed engine.  Tiny prop rods can be used to support the covers.

The cab doors can be opened and inside the seats have an air ride action and can be moved up and down. 

The fifth wheel has a spring loaded lever to secure a trailer in position.  It can also be adjusted longitudinally.

The winch can be operated by finger.


This is high quality model, with a high metal content. 

The paint work and graphics are very good.


It is a premium priced model which is reasonable value for the high quality. 


This is a high quality replica of a Mack truck and poses very well with a suitable trailer.


This model appeared in September 2023. 
Parts out of the box.
Excellent colour scheme.
Very detailed chassis.
Top quality decoration.
Ballast tray with ballast blocks.
Opening hood.
Fifth wheel has a lock.
Posed with a modular trailer.
This transformer load is likely too heavy for a single tractor