# 1974 Caterpillar 637 for Sale in Madera, CA

**URL:** <https://www.constructionequipmentguide.com/used-equipment/caterpillar/scrapers/637/id/85134515>

## Listing details

- **Price:** $29,000.00 USD
- **Listing ID:** 85134515
- **Year:** 1974
- **Manufacturer:** Caterpillar
- **Model:** 637
- **Category:** Scrapers
- **Type:** Bowl Scrapers
- **Stock number:** 0575
- **Location:** Madera, CA

## Machine details

### General Specifications

- **ropstype:** Open

## Manufacturer specifications

### Cab

- **Exterior Sound Level (since 2026):** The exterior sound power level for the standard machine (ISO 6393) is 119 dB(A).
- **ROPS/FOPS (since 2026):** ROPS/FOPS meet “ISO Standards.”

### Dimensions

- **Axle to Vertical Hitch Pin (since 2026):** 20 in (50.8 cm)
- **Extended Push Block (Push-Pull) (since 2026):** 108 in (274.32 cm)
- **Front of Tractor to Front Axle (since 2026):** 142.2 in (361.19 cm)
- **Ground Clearance - Tractor (since 2026):** 26.1 in (66.29 cm)
- **Height:** 13.9167 ft (4.24 m)
- **Height - Overall Shipping (since 2026):** 163.2 in (414.53 cm)
- **Height - Scraper Blade Maximum (since 2026):** 20 in (50.8 cm)
- **Height - Top of Cab (since 2026):** 149.8 in (380.49 cm)
- **Length:** 48.5833 ft (14.81 m)
- **Length - Maximum (Push-Pull) (since 2026):** 655.1 in (1663.95 cm)
- **Length - Overall Machine - Standard (since 2026):** 597 in (1516.38 cm)
- **Rear Axle - Rear of Machine (since 2026):** 90.2 in (229.11 cm)
- **Weight:** 112670 lbs (51106.32 kg)
- **Wheel Base (since 2026):** 346.8 in (880.87 cm)
- **Width:** 13 ft (3.96 m)
- **Width - Inside of Bowl (since 2026):** 134 in (340.36 cm)
- **Width - Outside Bowl - Shipping Width (since 2026):** 143.1 in (363.47 cm)
- **Width - Outside Rear Tires (since 2026):** 143.2 in (363.73 cm)
- **Width - Overall Machine (since 2026):** 155 in (393.7 cm)
- **Width - Overall Machine - Ladder Down (since 2026):** 152.7 in (387.86 cm)
- **Width - Rear Tire Centers (since 2026):** 96.9 in (246.13 cm)
- **Width - Tractor (since 2026):** 137.8 in (350.01 cm)

### Engine

- **Emissions (since 2026):** Cat® C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
- **Engine Model - Scraper (since 2026):** Cat® C9.3
- **Engine Model - Tractor (since 2026):** Cat® C18
- **Flywheel Power - Scraper (since 2026):** 290 hp (216.26 kw)
- **Flywheel Power - Tractor (since 2026):** 570 hp (425.06 kw)
- **Rated Engine RPM - Scraper (since 2026):** 2150 r/min
- **Rated Engine RPM - Tractor (since 2026):** 1900 r/min

### General

- **180° Curb-to-Curb Turning Width (since 2026):** 40.12 ft (12.23 m)
- **Fuel Tank Refill Capacity - Scraper (since 2026):** 370 gal (1400.45 l)
- **Maximum Depth of Cut (since 2026):** 17.7 in (44.96 cm)
- **Maximum Depth of Spread (since 2026):** 21.1 in (53.59 cm)
- **Overall Shipping Height (since 2026):** 13.7 ft (4.18 m)
- **Overall Width (since 2026):** 12.93 ft (3.94 m)
- **Rated Load (since 2026):** 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
- **Scraper Capacity - Heaped (since 2026):** 34 cu yd
- **Scraper Capacity - Struck (since 2026):** 24 cu yd
- **Tires - Scraper (since 2026):** 37.25R35\*\*E3
- **Tires - Tractor (since 2026):** 37.25R35\*\*E3
- **Top Speed - Loaded (since 2026):** 34.7 mph (55.84 kph)
- **Width - Cut (since 2026):** 11.50 ft (3.51 m)

### Implement Cycle Times

- **Apron Lower (since 2026):** 3.8 s
- **Apron Raise (since 2026):** 4 s
- **Bail Lower (since 2026):** 2.1 s
- **Bail Raise (since 2026):** 1.5 s
- **Bowl Lower (since 2026):** 3.5 s
- **Bowl Raise (since 2026):** 3.5 s
- **Ejector Extend (since 2026):** 8.5 s
- **Ejector Retract (since 2026):** 8.5 s

### Non Push-Pull

- **Operating Weight - Empty (since 2026):** 114950 lbs (52140.51 kg)
- **Overall Length (since 2026):** 49.34 ft (15.04 m)

### Push-Pull

- **Operating Weight - Empty (since 2026):** 119060 lbs (54004.77 kg)
- **Overall Length - With Bail Down (since 2026):** 54.59 ft (16.64 m)

### Safety Criteria Compliance Standards

- **Brakes (since 2026):** ISO 3450:2011
- **Falling Object Protective Structure (FOPS) (since 2026):** ISO 3449:2005 Level II
- **Reverse Alarm (since 2026):** ISO 9533:2010
- **Rollover Protection Structure (ROPS) (since 2026):** ISO 3471:2008 for up to 21 282 kg (46,919 lb)
- **Seat Belt (since 2026):** SAE J386:FEB2006
- **Steering System (since 2026):** ISO 5010:2007

### Scraper Bowl

- **Scraper Capacity - Heaped (since 2026):** 34 cu yd

### Service Refill Capacities

- **Cooling System - Scraper (since 2026):** 10.8 gal (40.88 l)
- **Cooling System - Tractor (since 2026):** 18.75 gal (70.97 l)
- **Crankcase - Scraper (since 2026):** 6.5 gal (24.6 l)
- **Crankcase - Tractor (since 2026):** 13.7 gal (51.85 l)
- **Diesel Exhaust Fluid (DEF)\* (since 2026):** 8 gal (30.28 l)
- **Diesel Exhaust Fluid - Scraper (since 2026):** 5.8 gal (21.95 l)
- **Diesel Exhaust Fluid - Tractor (since 2026):** 8 gal (30.28 l)
- **Fuel Tank (since 2026):** 370 gal (1400.45 l)
- **Hydraulic System (since 2026):** 37.5 gal (141.94 l)
- **Real Wheels (Each) (since 2026):** 2.37 gal (8.97 l)
- **Transmission System - Scraper (since 2026):** 12.9 gal (48.83 l)
- **Transmission System - Tractor (since 2026):** 29 gal (109.77 l)

### Tractor Engine

- **Flywheel Power - Tractor/Scraper (since 2026):** 570 hp (425.06 kw)

### Transmission

- **Top Speed - Loaded (since 2026):** 34.7 mph (55.84 kph)

### Travel Speeds - Runout

- **Transmission Gear - Eighth (since 2026):** 34.7 mph (55.84 kph)
- **Transmission Gear - Fifth (since 2026):** 14.1 mph (22.69 kph)
- **Transmission Gear - First (since 2026):** 3.4 mph (5.47 kph)
- **Transmission Gear - Fourth (since 2026):** 10.5 mph (16.9 kph)
- **Transmission Gear - Reverse (since 2026):** 6.2 mph (9.98 kph)
- **Transmission Gear - Second (since 2026):** 6.2 mph (9.98 kph)
- **Transmission Gear - Seventh (since 2026):** 25.7 mph (41.36 kph)
- **Transmission Gear - Sixth (since 2026):** 19 mph (30.58 kph)
- **Transmission Gear - Third (since 2026):** 7.7 mph (12.39 kph)

## About this model

The Caterpillar 637 is a self-loading wheel tractor-scraper used for earthmoving, grading, and large-scale site preparation. As a scraper, it is designed to cut, load, haul, and spread material efficiently over medium to long distances. Caterpillar 637 models are typically used in highway construction, mining, land development, and bulk excavation applications. The machine combines a tractor unit with a scraper bowl and ejector system for material handling. Depending on configuration and production year, the Caterpillar 637 may feature different engine, transmission, and bowl capacities. It is recognized for high production in mass earthmoving operations and coordinated fleet work.

## Photos

![1974 Caterpillar 637](https://media.sandhills.com/img.axd?id=11003501741&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=5luj5fj%2bFMJKPeRe0rI2YCJs0FLkTMxZ)

![1974 Caterpillar 637 photo 2](https://media.sandhills.com/img.axd?id=11003502773&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPeqtmW2Ix8I8P1QC62LtTmr)

![1974 Caterpillar 637 photo 3](https://media.sandhills.com/img.axd?id=11003502718&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPedlIDmE7A4DFNeBozygmzh)

![1974 Caterpillar 637 photo 4](https://media.sandhills.com/img.axd?id=11003502642&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPfvQjGCn0ymmCeW7wbefL0P)

![1974 Caterpillar 637 photo 5](https://media.sandhills.com/img.axd?id=11003502015&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPfCdYQ57vD7FopTOsopkpAy)

![1974 Caterpillar 637 photo 6](https://media.sandhills.com/img.axd?id=11003502236&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPfeTIZ70Cab3gAys6x4zH%2fR)

![1974 Caterpillar 637 photo 7](https://media.sandhills.com/img.axd?id=11003501779&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=5luj5fj%2bFMKyJib3LGkUeSPH5c6S%2b9S8)

![1974 Caterpillar 637 photo 8](https://media.sandhills.com/img.axd?id=11003502682&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPceyGDzvYzak9kZqL%2bhd3OP)

![1974 Caterpillar 637 photo 9](https://media.sandhills.com/img.axd?id=11003501807&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=5luj5fj%2bFMLaLDgxKHO38x0NdXDgogcs)

![1974 Caterpillar 637 photo 10](https://media.sandhills.com/img.axd?id=11003501841&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=5luj5fj%2bFMIYxeDsNVd3gcVidwvk%2fwzD)

![1974 Caterpillar 637 photo 11](https://media.sandhills.com/img.axd?id=11003502474&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPc%2bH8EACl8IJ3LHw1mjB1zC)

![1974 Caterpillar 637 photo 12](https://media.sandhills.com/img.axd?id=11003501866&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=5luj5fj%2bFMJb6pVetu4rDflUnrbyKHPj)

![1974 Caterpillar 637 photo 13](https://media.sandhills.com/img.axd?id=11003501910&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=5luj5fj%2bFML9TIjBRuY%2bVRlsk9YrQITz)

![1974 Caterpillar 637 photo 14](https://media.sandhills.com/img.axd?id=11003501926&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=5luj5fj%2bFMIho7tkhrqkCjegNFjZ%2fpLd)

![1974 Caterpillar 637 photo 15](https://media.sandhills.com/img.axd?id=11003501938&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=5luj5fj%2bFMKR1RfxijJRzDgkLXXADKrq)

![1974 Caterpillar 637 photo 16](https://media.sandhills.com/img.axd?id=11003502102&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPdE2GyE8dFJ8VPRTFFaCdp5)

![1974 Caterpillar 637 photo 17](https://media.sandhills.com/img.axd?id=11003502189&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPccW3lgDKK02BBYlxrV3Bl0)

![1974 Caterpillar 637 photo 18](https://media.sandhills.com/img.axd?id=11003502267&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPeJlg5IgtDSIFeufvJoJKyF)

![1974 Caterpillar 637 photo 19](https://media.sandhills.com/img.axd?id=11003502298&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPdVJoF%2bmfjFWgpxlrYtY78Z)

![1974 Caterpillar 637 photo 20](https://media.sandhills.com/img.axd?id=11003502427&wid=0&rwl=False&p=&ext=&w=600&h=400&t=&lp=&c=True&wt=False&sz=Max&rt=0&checksum=SvO1zrmoPPf515h3iIkxMVZsN7so9M7S)

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