The Caterpillar 637G Wheel Tractor-Scraper in 1:48th scale was in 2008 released by CCM.

Released by Classic Construction Models in 2008 is the Caterpillar 637G Wheel Tractor-Scraper in a limited edition from a total 300 pieces in the “Precise 1:48 scale Brass construction” series. Each model is individually serial-numbered and comes with a certificate of authenticity.

CCM made a Ultra accurate to original machine hand-crafted, all brass model of the Caterpillar 637G Scraper features push-pull blocks, fore and after, fully detailed twin engines. The functioning ejector, apron and stringer look ready for work. Functional steering hitch and accurate paint and Power Edge markings, mirrors, lights, hydraulic piping and hoses, Realistic free-rolling rubber tires,

Precise hand and safety rails that are true-to-scale make it easy to verify this model is truly collectible. Each model, which required hundreds of etched, investment cast and formed-brass components to complete.

Caterpillar 637G Wheel Tractor-Scraper

The Caterpillar 637G Wheel Tractor-Scraper was introduced in 2001 and only produced in the USA. Powered by a Caterpillar 3408E and later a C18 ACERT Diesel engine (Tractor) and a Caterpillar 3306 and later a C9 ACERT Diesel engine (Scraper) both good for 490.0 hp and 250.0 hp, an empty operating weight of 114.745 lb and a loading capacity of 75,000 lb or 31.0 yd3.

There were also 637G Push-Pull, Auger and Coal Bowl Wheel Tractor-Scraper versions available.

The 637G was given a AXT serial number prefix. Production of the 637G ended in 2016 when the Caterpillar 637G was replaced by the Caterpillar 637K