Caterpillar 312 Excavators for Sale

Browse 25 Caterpillar 312 Excavators machines on Machmon. Compare by model, location, and condition, then contact sellers using the enquiry options provided.

Caterpillar 312 · Excavators

Caterpillar 312

Use the Caterpillar 312 stock above to compare generation, year, hours, seller location and visible price.

Key specifications

Operating weight: About 12,500 to 14,150 kg (27,550 to 31,150 lb), varying by generation and undercarriage
Net power: 63 kW (84 hp) on the 312B up to 70 to 71 kW (94 to 95 hp) on the 312E and 312F GC
Engine, early generations: Cat 3064T diesel on the 312B and 312C; Cat 3054C on the 312D2
Engine, later generations: Cat C4.2 ACERT on the 312D; Cat C4.4 ACERT on the 312E; Cat C3.4B on the 312F GC
Emissions class: EEC 80/1269 on the 312B and 312C, EPA Tier 3 and EU Stage IIIA on the 312D, EU Stage IIIB on the 312E, Tier 4 Final on the 312F GC
Undercarriage options: Standard and Long Undercarriage (L) variants offered across most generations, adding roughly 500 to 700 kg

Model overview

The Caterpillar 312 is a 12 to 14 tonne class crawler excavator, sitting in the small-to-mid excavator range between the compact 30x series and the larger 320 class. Caterpillar built the 312 across several generations, from the 312B and 312C through the 312D, 312D2 and 312E, ending with the 312F GC. Net power moved from around 63 kW (84 hp) on the 312B to 70 to 71 kW (94 to 95 hp) on the later 312E and 312F GC, with operating weight generally between 12,500 kg and 14,150 kg depending on generation and undercarriage length. Emissions compliance also moved by generation, from EEC 80/1269 on the earliest machines up to EU Stage IIIB and Tier 4 Final on the last 312-badged models.

At a glance

Generation and suffixConfirm whether a listing is a 312B, 312C, 312D, 312D2, 312E or 312F GC, and whether it carries the L (Long Undercarriage) suffix, before comparing weight or power.

Emissions standardEmissions class changes by generation, from EEC 80/1269 on early machines to Tier 4 Final on the last 312F GC. Check the emissions class required for the buyer's region or site.

Undercarriage lengthLong Undercarriage (L) variants add stability and roughly 500 to 700 kg over the standard undercarriage of the same generation.

Hours, year and configurationUse the live filters and listing cards to compare age, operating hours and visible boom, stick and bucket configuration.

14731 machines · €250 - €1,700,000 · 1970 to 2026 · China, Germany, Netherlands

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Specifications sourced from h-cpc.cat.com (official manufacturer page).