# Caterpillar 312F for Sale in Piscataway, NJ

**URL:** <https://www.constructionequipmentguide.com/used-equipment/caterpillar/excavators/312f/id/89164785>

## Listing details

- **Price:** $114,500.00 USD
- **Listing ID:** 89164785
- **Manufacturer:** Caterpillar
- **Model:** 312F
- **Category:** Excavators
- **Type:** Standard Excavators
- **Hours:** 1736
- **Serial number:** KMK10435
- **Location:** Piscataway, NJ

## Description

\*REAR VIEW CAMERA, Air Conditioner, Auxiliary Hydraulics Pressure, Beacon, Boom, Bucket, Coupler - Quick, Coupler Type - Hydraulic, Engine Enclosures, Lighting, Mirrors, Product Link, Radio - AM FM Radio, Stick, Thumb Type - Hydraulic, Ultra Low Sulfur Diesel Fuel

## Machine details

### GENERAL APPEARANCE

- **Notes - GENERAL APPEARANCE:** .

### SAFETY ITEMS

- **ROPS:** Yes
- **ROPS Certification Plate:** Yes

### OPERATOR STATION

- **Current O&MM:** Yes

### ENGINE

- **Blow By:** No
- **Knocking:** No
- **Oil Leaks:** No
- **Water in Oil:** No

### COOLING SYSTEM

- **Fan:** Good
- **Radiator:** Good
- **Water Pump:** Good

### ELECTRICAL, STARTING AND CHARGING SYSTEM

- **Alternator:** Good
- **Beacon:** Poor
- **Lighting:** Good
- **Starter:** Good
- **Wiring:** Good

### HYDRAULICS

- **Boom Cylinder:** Good
- **Bucket Cylinder:** Good
- **Control Linkage:** Good
- **Hose Lines:** Good
- **Operating Condition - HYDRAULICS:** Good
- **Pump Drive:** Good
- **Pumps & Valves:** Good
- **Stick Cylinder:** Good
- **Swing Motors:** Good
- **Travel Motors:** Good

### ATTACHMENTS / WORK TOOLS

- **Thumb:** Yes

### BOOM

- **Boom Condition:** Good
- **Boom Pins:** Good
- **Pins & Bushings - BOOM:** Good

### STICK

- **Stick Length:** 8'2"

### BUCKET

- **Quick Coupler:** Yes

### UNDERCARRIAGE

- **Pins & Bushings Turned?:** No

### COMMENTS, MISC. REPAIRS, GENERAL REMARKS

- **comment 1:** .
- **comment 2:** INSPECTED 5/18/26 @ 1736.7 HRS
- **comment 3:** PRODUCT LINK (NOT WORKING)

## About this model

The Caterpillar 312F is a hydraulic excavator in Caterpillar's 12-ton class, designed for general excavation, trenching, site preparation, and utility work. It is typically equipped with a fuel-efficient Cat diesel engine, hydraulic system optimized for smooth control, and a compact tail swing design for work in confined areas. The 312F is used in construction, landscaping, roadwork, and municipal applications. Common features include an operator cab with ergonomic controls, auxiliary hydraulic capability for attachments, and service access designed to simplify maintenance. The model is part of Caterpillar's F series excavator lineup and is known for balanced digging performance and versatility.

## Photos

![Caterpillar 312F](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1mZTBmNWVmNmE2MTM2ODUyY2Q5MDE5NWE0YWNhMjIxZiYkdHh0PUZPTEVZJTJDJTIwSU5DLiY0ODg0MQ==)

![Caterpillar 312F photo 2](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1iZGE3MWE3MTE4MTllMWQ3OWJiOGQ0ZWEwZGNlMDYyMiYkdHh0PUZPTEVZJTJDJTIwSU5DLiYxMDg2OQ==)

![Caterpillar 312F photo 3](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1lZmQ1ZTNmNzMxMTA2YzIzYzdjMjg1NjY1ODZkNWExYSYkdHh0PUZPTEVZJTJDJTIwSU5DLiY0MzQ3NQ==)

![Caterpillar 312F photo 4](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1hMDZmMTQxMTk4MDE2ZWQ2ZjdmZWU4ZmQ2YmE1ZWZkOCYkdHh0PUZPTEVZJTJDJTIwSU5DLiYyODg4Mw==)

![Caterpillar 312F photo 5](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1kNTRhMWE0M2I0ZGMxMGJlYmNhNWU2NWU3Y2MwNjAzNSYkdHh0PUZPTEVZJTJDJTIwSU5DLiYzMzMxNw==)

![Caterpillar 312F photo 6](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz05OTliODQzMDdiMjA0NmI1YTJmYjllMjBhNDgxMWFiMSYkdHh0PUZPTEVZJTJDJTIwSU5DLiY2MzAyNg==)

![Caterpillar 312F photo 7](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1iYmIxYzQzZGI1NzUzZTlmZTg1NDkwMDk1NmNiZTc4YiYkdHh0PUZPTEVZJTJDJTIwSU5DLiYxNzM0OQ==)

![Caterpillar 312F photo 8](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1hMDA1MTY2MmI5N2IyMTBiZjNmNDhkM2JjOWQ5N2ViMyYkdHh0PUZPTEVZJTJDJTIwSU5DLiYxMzIyMA==)

![Caterpillar 312F photo 9](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz05ODY5ODIwMGZjMmI0MzlkZjBhOTI5ZjM1MGNjZDBkMSYkdHh0PUZPTEVZJTJDJTIwSU5DLiYzMTAyMw==)

![Caterpillar 312F photo 10](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1jYWIzMTA2OWUwM2VjMzU5Y2I4ZjY4MGFhYzIxYjFmNCYkdHh0PUZPTEVZJTJDJTIwSU5DLiY1MjUwOA==)

![Caterpillar 312F photo 11](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1mYzNmNTA5OGQwYjRlMGM3OTVhZDQxNDE5Nzc4ZmU0MyYkdHh0PUZPTEVZJTJDJTIwSU5DLiYxMTM1MQ==)

![Caterpillar 312F photo 12](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1kNDM5NTc2NjU1YmFhYmE4YmI2ZTA2NDQyY2Q2NjlmNSYkdHh0PUZPTEVZJTJDJTIwSU5DLiY2MjMzMQ==)

![Caterpillar 312F photo 13](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1mMzhmMmM0NmFhZTM5OGQ4ZTQ1NjRmYjYwZmE3OWM4MSYkdHh0PUZPTEVZJTJDJTIwSU5DLiYyMjQ4NA==)

![Caterpillar 312F photo 14](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1lY2IwYzczYzM1YTA5YjkzYzkyYjE3MTIxMzFiMzI4YyYkdHh0PUZPTEVZJTJDJTIwSU5DLiYzOTc3MA==)

![Caterpillar 312F photo 15](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1iZDM2ZWFkMDBiZmNiOThkZjhiNDVlMzc0NmVkODcyNiYkdHh0PUZPTEVZJTJDJTIwSU5DLiYxOTIyNQ==)

![Caterpillar 312F photo 16](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz04MThlYTdmMDlmMzBiN2RjY2M0ODVjZWE5MjY0OGJlOSYkdHh0PUZPTEVZJTJDJTIwSU5DLiYzNzIwOQ==)

![Caterpillar 312F photo 17](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz04MjY3YTc1NDUxMjhhZDNiYzY0OTZhMmQ2YjA5NzVlMSYkdHh0PUZPTEVZJTJDJTIwSU5DLiYyMjA0NA==)

![Caterpillar 312F photo 18](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz04ZDBhMTA3ODZhZjE0MDZiOTBhMjBiYzkwZDg1ZTdjYSYkdHh0PUZPTEVZJTJDJTIwSU5DLiY0MzM0MA==)

![Caterpillar 312F photo 19](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1hMjk0YjI0MjQ3MjQwMzU5Y2IwYjRjYjFiZmUxMWFmNiYkdHh0PUZPTEVZJTJDJTIwSU5DLiYzNTA5OQ==)

![Caterpillar 312F photo 20](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1kNWQ1N2Q5ZjZhMjJmNDE3Zjc5OTk5MjE5NGZmNjEzOSYkdHh0PUZPTEVZJTJDJTIwSU5DLiY2NDIyMQ==)

![Caterpillar 312F photo 21](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1kNGU1MjMyMjJkZGJkM2RmZDhjNzhiOWVkOWJlOWVjMSYkdHh0PUZPTEVZJTJDJTIwSU5DLiYyNDY5NA==)

![Caterpillar 312F photo 22](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1kZDA3Mjg1ZjAxOTViZTEzOGZiNTRkMWM4YjllMjI0YiYkdHh0PUZPTEVZJTJDJTIwSU5DLiYxOTU2NQ==)

![Caterpillar 312F photo 23](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1kN2FlMDY2ZDMzNDYwNjQwOWE4NjMyNzZjZmM2M2JiZSYkdHh0PUZPTEVZJTJDJTIwSU5DLiY0ODM2NQ==)

![Caterpillar 312F photo 24](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1mZjU0MmU2ZGViYzVmZWQ3ZWRiM2RmYzViMjA4ZmFhYSYkdHh0PUZPTEVZJTJDJTIwSU5DLiY0OTM1Ng==)

![Caterpillar 312F photo 25](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1hYjk4MmU1ZjhjZjE4ODJiOTY1MGIzMGVmNGI0ZWZjNiYkdHh0PUZPTEVZJTJDJTIwSU5DLiY0NjI1Mg==)

![Caterpillar 312F photo 26](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1lOGYwMWU1NDJlNDVhNjVkZjI3NDg4MDVmZTM0ZTU5NyYkdHh0PUZPTEVZJTJDJTIwSU5DLiY0NTMzMg==)

![Caterpillar 312F photo 27](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1iY2JkNzA3NjY1MmMwNzhlYTBkNWFmM2M2MDIwMjEyMSYkdHh0PUZPTEVZJTJDJTIwSU5DLiYxOTI2)

![Caterpillar 312F photo 28](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz1lZjI1MmNkNDQ1Y2VhMDUzY2MyMmMxYTg4OGUxNDdhMCYkdHh0PUZPTEVZJTJDJTIwSU5DLiYyNzU5Mg==)

![Caterpillar 312F photo 29](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz04Y2Q3ZjIwMmYwMDFlMDMxY2MyNjQ2Nzg2YzVlOTllNSYkdHh0PUZPTEVZJTJDJTIwSU5DLiYyMDQ3Ng==)

![Caterpillar 312F photo 30](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz05OTE4ZjE2NmE1ZTczMDI0ZGY5ZDQyMGFjZmRiZTQ2YSYkdHh0PUZPTEVZJTJDJTIwSU5DLiYxMzY3MA==)

![Caterpillar 312F photo 31](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz05NDAwYzg5ODdmMDBhMGMwZDk3NmU0ZmFmYmIyZjdlMCYkdHh0PUZPTEVZJTJDJTIwSU5DLiYyMjE0NA==)

![Caterpillar 312F photo 32](http://s7d2.scene7.com/is/image/CatUsedProduction/wtk?JHNyYz05MmU2OGMwNTI2YjQ3ZGJjZmQ2ZGM1MTgzNzgxMDI3MiYkdHh0PUZPTEVZJTJDJTIwSU5DLiY2MTU=)