Caterpillar 621K
The versatile single-engine scraper
The Cat 621K is a single-engine, open-bowl scraper with a heaped capacity of about 18 m³ (24 yd³), the most common size class in construction.
Photo: U.S. Army Corps of Engineers Sacramento District, Public domain
+Strengths
- Versatile mid-size capacity
- Lower cost than twin-engine models
- Cat dealer support
−Watch-outs
- Needs a push dozer to load fully
Overview
The Cat 621K is Caterpillar's mid-size single-engine scraper. It is used on highways, residential developments and site preparation, typically loaded with the help of a push dozer.
Who it suits
Earthmoving contractors moving large volumes of common earth over medium distances.
Caterpillar 621K specifications
| Heaped capacity | ≈18 m³ (24 yd³) |
|---|---|
| Rated load | ≈22,000 kg (48,500 lb) |
| Engine | Cat C13 |
| Configuration | Single engine, open bowl |
Figures are typical for standard configurations as published by Caterpillar. Values vary by market, emissions tier, attachments and options; confirm with your dealer before purchase, transport or lifting.
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