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Construction Machinery: Self-Powered Scraper Caterpillar
| Model | Transmission type | Forward gears number | Reverse gears number | Manufacturer | Model | Maximum reverse gear |
|---|---|---|---|---|---|---|
| 657G | 8-speed automatic power transmission with electronic control | 8 | 1 | Caterpillar | C15 ACERT | 9.7 km/h - 6 mile / h |
| 657E | 8 | Caterpillar | 3408 | |||
| 657B | Caterpillar | |||||
| 651E | 8 | Caterpillar | 3412 | |||
| 651B | D346 | |||||
| 641B | D346 | |||||
| 637G | 8 | 1 | Caterpillar | 3306 | 9.9 km/h - 6.2 mile / h | |
| 637E serie II | 3306TA | |||||
| 637E | 7 | Caterpillar | 3306 | |||
| 637D | 8 | Caterpillar | 3306 | |||
| 637B | 3408 | |||||
| 633E serie II | 3408TA | |||||
| 633D | 3408 | |||||
| 631G | 8-speed automatic power transmission with electronic control | 8 | 1 | Caterpillar | 3408E | 9.9 km/h - 6.2 mile / h |
| 631E serie II | 3408TA | |||||
| 631E | 7 | Caterpillar | 3408 | |||
| 631D | 3408 | |||||
| 627G | powershift | 8 | 1 | Caterpillar | C9 ACERT | 9.2 km/h - 5.7 mile / h |
| 627E | 8 | 1 | Caterpillar | 3306 | 10.4 km/h - 6.5 mile / h | |
| 627B | 3306 | |||||
| 623G | 8 | 1 | Caterpillar | C15 with ACERT technology | 9.2 km/h - 5.7 mile / h | |
| 623F | 3406CTA | |||||
| 623B | 3406 | |||||
| 621S | 8 | Caterpillar | 3306 | |||
| 621G | 8-speed automatic power transmission with electronic control | 8 | 1 | Caterpillar | C15 ACERT | 9.2 km/h - 5.7 mile / h |
| 621F | 3406CTA | |||||
| 621E | 8 | Caterpillar | 3406 | |||
| 621B | 8 | Caterpillar | 3406 | |||
| 615C serie II | 6 | Cat. 3306 | ||||
| 613C serie II | 6 | 1 | Caterpillar | Cat. 3116 | 3.5 km/h - 2.2 mile / h | |
| 613B | 3208 | |||||
| 611 | 3306T |