# 1979 Caterpillar 631D

**URL:** <https://www.constructionequipmentguide.com/used-equipment/caterpillar/scrapers/631d/id/88885248>

> This machine has been sold or is not currently for sale.

## Listing details

- **Price:** Sold
- **Listing ID:** 88885248
- **Year:** 1979
- **Manufacturer:** Caterpillar
- **Model:** 631D
- **Category:** Scrapers
- **Type:** Open Bowl Scrapers
- **Hours:** 5737
- **Serial number:** 24W2295
- **Location:** Orlando, Fl
- **Auction starts:** 2026-08-27

## Description

Located in Lane 5 Spot 109, Open Operator Station, 37.25-35 Tires

## Manufacturer specifications

### Bowl

- **Heaped Capacity:** 31 cu yd
- **Max Depth Of Cut:** 19 in (48.26 cm)
- **Struck Capacity:** 21 cu yd
- **Width Of Cut:** 11.5 ft (3.51 m)

### Dimensions

- **Height:** 13.6667 ft (4.17 m)
- **Length:** 46.75 ft (14.25 m)
- **Overall Height:** 13.67 ft (4.17 m)
- **Overall Length:** 46.75 ft (14.25 m)
- **Overall Width:** 13 ft (3.96 m)
- **Weight:** 93410 lbs (42370.12 kg)
- **Wheelbase:** 28.8 ft (8.78 m)
- **Width:** 13 ft (3.96 m)

### Operational

- **Fuel Capacity:** 250 gal (946.25 l)
- **Tire Size:** 33.25x35, 38PR

### Tractor Engine

- **Displacement:** 1099 cu in (18009.42 cu cm)
- **Net Power:** 450 hp (335.57 kw)
- **Power Measured @:** 2000 rpm

### Transmission

- **Max Speed Forward:** 31 mph (49.89 kph)

### Weights

- **Total Operating - Empty:** 88900 lbs (40317.46 kg)

## About this model

The Caterpillar 631D is a wheel tractor-scraper used in earthmoving, road construction, and large-scale site preparation. As part of Caterpillar's scraper lineup, the 631D is designed for loading, hauling, and spreading material over medium to long distances. It typically features a twin-engine configuration, a large bowl, and a rear push-pull or push loading arrangement depending on setup. The machine is used for moving soil, gravel, and other loose materials efficiently across job sites. The Caterpillar 631D is recognized for its high-capacity hauling capability, durable construction, and suitability for production earthmoving applications in mining, civil works, and infrastructure projects.

## Photos

![1979 Caterpillar 631D](https://www-ironplanet.s3-us-west-2.amazonaws.com/i/22542/608/9e0b7bd0-31eb-4593-8b4d-9449c0765045-hr.jpg)

![1979 Caterpillar 631D photo 2](https://www-ironplanet.s3-us-west-2.amazonaws.com/i/22542/608/3e13787f-4c4c-408e-9c49-92673cbe75f0-hr.jpg)

![1979 Caterpillar 631D photo 3](https://www-ironplanet.s3-us-west-2.amazonaws.com/i/22542/608/8748f111-1ccb-4b99-aaca-bc58c956be18-hr.jpg)

![1979 Caterpillar 631D photo 4](https://www-ironplanet.s3-us-west-2.amazonaws.com/i/22542/608/be64909d-61ee-404a-a548-bea8f2b95c0f-hr.jpg)

![1979 Caterpillar 631D photo 5](https://www-ironplanet.s3-us-west-2.amazonaws.com/i/22542/608/7cbdc976-0571-4709-b9f3-3b2b520e3a19-hr.jpg)

![1979 Caterpillar 631D photo 6](https://www-ironplanet.s3-us-west-2.amazonaws.com/i/22542/608/eff90f56-c36b-488f-8377-52269e875b67-hr.jpg)

![1979 Caterpillar 631D photo 7](https://www-ironplanet.s3-us-west-2.amazonaws.com/i/22542/608/58157fa0-ec50-4e27-a747-5fd5e79b0351-hr.jpg)