# 2020 Caterpillar 621K for Sale in San Antonio, TX **URL:** ## Listing details - **Price:** Call for price - **Listing ID:** 88440226 - **Year:** 2020 - **Manufacturer:** Caterpillar - **Model:** 621K - **Category:** Scrapers - **Type:** Open Bowl Scrapers - **Hours:** 3591 - **Serial number:** WTA00157 - **Location:** San Antonio, TX ## Description Online Owner's Manual ## Manufacturer specifications ### Cab - **Exterior Sound Level:** The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A). - **Rops/Fops:** Meets SAE and ISO standards ### Dimensions - **Axle To Vertical Hitch Pin:** 21.3 in (54.1 cm) - **Front Of Tractor To Front Axle:** 122.8 in (311.91 cm) - **Ground Clearance - Tractor:** 21.9 in (55.63 cm) - **Height:** 13.1667 ft (4.01 m) - **Height - Overall Shipping:** 158.6 in (402.84 cm) - **Height - Scraper Blade Maximum:** 20.5 in (52.07 cm) - **Height - Top Of Cab:** 11.85 ft (3.61 m) - **Length:** 46 ft (14.02 m) - **Length - Maximum (Push-Pull):** 613.21 in (1557.55 cm) - **Length - Overall Machine - Standard:** 551.8 in (1401.57 cm) - **Rear Axle - Rear Of Machine:** 114.1 in (289.81 cm) - **Weight:** 79787 lbs (36190.82 kg) - **Wheel Base:** 26.25 ft (8 m) - **Width:** 11.6667 ft (3.56 m) - **Width - Inside Of Bowl:** 120 in (304.8 cm) - **Width - Outside Rear Tires:** 128.9 in (327.41 cm) - **Width - Overall Machine:** 141.1 in (358.39 cm) - **Width - Overall Machine - Ladder Down:** 149.2 in (378.97 cm) - **Width - Rear Tire Centers:** 90.2 in (229.11 cm) - **Width - Tractor:** 133.1 in (338.07 cm) ### Engine - **Engine Model - Tractor:** Cat C13 ACERT - **Flywheel Power - Tractor:** 407 hp (303.5 kw) - **Note:** Cat C13 ACERT engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards. - **Rated Engine Rpm - Tractor:** 2000 rpm ### General - **180 Degrees Curb-To-Curb Turning Width:** 38.71 ft (11.8 m) - **Fuel Tank Refill Capacity - Scraper:** 201 gal (760.79 l) - **Maximum Depth Of Cut:** 12.4 in (31.5 cm) - **Maximum Depth Of Spread:** 21.3 in (54.1 cm) - **Overall Shipping Height:** 13.22 ft (4.03 m) - **Overall Width:** 11.71 ft (3.57 m) - **Rated Load:** 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons) - **Scraper Capacity - Heaped:** 24 cu yd - **Scraper Capacity - Struck:** 17.11 cu yd - **Tires - Scraper:** 33.25R29\*\*E3 - **Tires - Tractor Drive:** 33.25R29\*\*E3 - **Top Speed - Loaded:** 33.5 mph (53.91 kph) - **Width - Cut:** 10.3 ft (3.14 m) ### Implement Cycle Times - **Apron Lower:** 3.8 s - **Apron Raise:** 2.95 s - **Bail Lower:** 3.2 s - **Bail Raise:** 1.8 s - **Bowl Lower:** 3.5 s - **Bowl Raise:** 3 s - **Ejector Extend:** 5.2 s - **Ejector Retract:** 6.7 s ### Non Push-Pull - **Operating Weight - Empty:** 79787 lbs (36190.82 kg) - **Overall Length:** 45.9 ft (13.99 m) ### Push-Pull - **Operating Weight - Empty:** 80630 lbs (36573.2 kg) - **Overall Length - With Bail Down:** 51.1 ft (15.58 m) ### Safety Criteria Compliance Standards - **Brakes:** ISO 3450:1996 - **Falling Object Protective Structure (Fops):** ISO 3449:2005 Level II - **Reverse Alarm:** ISO 9533:2010 - **Rollover Protection Structure (Rops):** ISO 3471:2008 for up to 17 084 kg (37,664 lb) - **Seat Belt:** SAE J386:JUN1985 - **Steering System:** ISO 5010:2007 ### Scraper Bowl - **Scraper Capacity - Heaped:** 24 cu yd ### Service Refill Capacities - **Cooling System:** 11.9 gal (45.04 l) - **Crankcase:** 8.1 gal (30.66 l) - **Diesel Exhaust Fluid:** 8.1 gal (30.66 l) - **Fuel Tank:** 216.1 gal (817.94 l) - **Hydraulic System:** 22 gal (83.27 l) - **Transmission System:** 24.8 gal (93.87 l) ### Tractor Engine - **Flywheel Power - Tractor/Scraper:** 304 kW (407 hp) ### Transmission - **Top Speed - Loaded:** 33.5 mph (53.91 kph) ### Travel Speeds - Runout - **Transmission Gear - Eighth:** 33.5 mph (53.91 kph) - **Transmission Gear - Fifth:** 13.6 mph (21.89 kph) - **Transmission Gear - First:** 3.1 mph (4.99 kph) - **Transmission Gear - Fourth:** 10.1 mph (16.25 kph) - **Transmission Gear - Reverse:** 5.7 mph (9.17 kph) - **Transmission Gear - Second:** 5.5 mph (8.85 kph) - **Transmission Gear - Seventh:** 24.8 mph (39.91 kph) - **Transmission Gear - Sixth:** 18.4 mph (29.61 kph) - **Transmission Gear - Third:** 7.5 mph (12.07 kph) ## About this model The Caterpillar 621K is a wheel tractor-scraper in Caterpillar's scraper lineup, designed for earthmoving, site preparation, and large-scale material transport. It uses a single-engine, open bowl scraper configuration with a rear push-pull arrangement for efficient loading and hauling in construction, mining, and roadbuilding applications. The 621K is part of Caterpillar's K Series and is known for integrated powertrain controls, operator visibility, and compatibility with high-production fleet operations. Typical uses include cut-and-fill work, mass excavation, and haul road development. The model is commonly referenced in heavy equipment inventories, rental fleets, and equipment specification databases. ## Photos ![2020 Caterpillar 621K](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1hYTJlNmQzZmExN2ZkNGRlZjI3ZjZjNzZkNjk4YTA0YSYkdHh0PUhPTFQlMjBDQVQmNDcyODI=) ![2020 Caterpillar 621K photo 2](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1mNmM1Yjc1MzIyY2ZmZmM3ZWYzZDc2NTQ2ZDJkYmQ0MCYkdHh0PUhPTFQlMjBDQVQmNTc3MDg=) ![2020 Caterpillar 621K photo 3](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1jOGM0ZWM3ZTk5ZDk3MWQwYWZhZGMzNmQ4MDg4MDEyOCYkdHh0PUhPTFQlMjBDQVQmNjM3Mjg=) ![2020 Caterpillar 621K photo 4](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz04NWYzNzFkMTIzMzNkYzE1Y2NmMDNjOTM4MGUzNDM5YSYkdHh0PUhPTFQlMjBDQVQmMTcyMDg=) ![2020 Caterpillar 621K photo 5](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1lOWI3YjZiYTE1NDk0OTU1ZDJhNzA5NjVjODI3OGU1MyYkdHh0PUhPTFQlMjBDQVQmMTc4ODU=) ![2020 Caterpillar 621K photo 6](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1hMzU0Y2ZlNGM5ZTViNTNjZjI4YTIwNDA5ZDA4NWMxZCYkdHh0PUhPTFQlMjBDQVQmMjUwODE=) ![2020 Caterpillar 621K photo 7](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz04OWNkODM2ZTI2ZTdjOGM0ZGUzMDBjOTk1M2FiODIyZCYkdHh0PUhPTFQlMjBDQVQmMTI3ODI=) ![2020 Caterpillar 621K photo 8](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1iYjFiNGNkOWY1YWJiNDY3ZjM5NjBlMGUzZDJhMjM1YiYkdHh0PUhPTFQlMjBDQVQmMTE0ODA=) ![2020 Caterpillar 621K photo 9](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1jNDY3OWY3OGMwYzZmMzk0ZDg1YmNiYzU1NmU4YmQwYyYkdHh0PUhPTFQlMjBDQVQmNDg3MDU=) ![2020 Caterpillar 621K photo 10](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1lNWYxOTE1MDIyZWE4M2NiYzA0ODMwOTk2OTYyZTViMiYkdHh0PUhPTFQlMjBDQVQmMzQyNzE=) ![2020 Caterpillar 621K photo 11](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1kYjRkZDRkODM3ZDVmYjdkZGI3ZWI1ZTE5NWVhNTE5OCYkdHh0PUhPTFQlMjBDQVQmNDMzNTI=) ![2020 Caterpillar 621K photo 12](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1jZDdmNzEzN2E5ZTYzMDJmOGVjYjcwMDBjNGE5MmU3NCYkdHh0PUhPTFQlMjBDQVQmMTAyODA=) ![2020 Caterpillar 621K photo 13](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz05MDAxYTY1YmNlOTcxMDM4YjgzMzBhMGYxODA2MGU0YyYkdHh0PUhPTFQlMjBDQVQmMTQ0MjY=) ![2020 Caterpillar 621K photo 14](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1kNDQ2NGJiNTQ1NjAwZGQ3ZGRlOGJhMjNiODk3NDFmYiYkdHh0PUhPTFQlMjBDQVQmOTUxOQ==) ![2020 Caterpillar 621K photo 15](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1mMDkyYWIzZGU3NTg4MzA5ZGUzY2ZjMjE3YjY3NDM3YSYkdHh0PUhPTFQlMjBDQVQmNjM2MjY=) ![2020 Caterpillar 621K photo 16](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1iMWJiYzdmYzNlMzBlMjNkOTk4Y2VkMTc3Mjk0NTgwZCYkdHh0PUhPTFQlMjBDQVQmOTE5Mg==) ![2020 Caterpillar 621K photo 17](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1mMWQ0YWRmYTFhYzdjNTJkZTRmNzJkMzVjN2NjODg3NSYkdHh0PUhPTFQlMjBDQVQmNTQyNjE=) ![2020 Caterpillar 621K photo 18](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1hMzE4NTBmZjFlZThhZThjZjdmNGMzZjRlODY3ZjU2ZCYkdHh0PUhPTFQlMjBDQVQmNTgzMzg=) ![2020 Caterpillar 621K photo 19](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1iMDA2NWE3OWVkNjBkNzFjYTRkMWY3ODJmZTJlOTM0OCYkdHh0PUhPTFQlMjBDQVQmMTUwMTM=) ![2020 Caterpillar 621K photo 20](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz05MDZhOWU0YmE4MjNkZTNhOGZlZGQwYzhkNDVmY2RiMSYkdHh0PUhPTFQlMjBDQVQmNTg0NDQ=) ![2020 Caterpillar 621K photo 21](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1hZTdjMTU0MDQ5NGRkNzJmOTJlMzAxMTAwM2IyMzJlZiYkdHh0PUhPTFQlMjBDQVQmNDUyODA=) ![2020 Caterpillar 621K photo 22](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1lN2JjYTVmZDA5MzQ1YjAxZmRiMmRjZTFmNWUzN2RmYiYkdHh0PUhPTFQlMjBDQVQmMzExNjI=) ![2020 Caterpillar 621K photo 23](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1kYjRlOGJiM2QwN2I2ODIzYTI5MDMzODJlMGVhYzViYiYkdHh0PUhPTFQlMjBDQVQmMjc2OTM=) ![2020 Caterpillar 621K photo 24](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1hZmY4NDE0YjYxNTBkOWI4Yzk1ZjA2OTFkOTY2MjhlNiYkdHh0PUhPTFQlMjBDQVQmNTA2NzA=)