463 mm (18 in) Pin Lock

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Ideal for semi-rocky soil or where hard bank material must be broken out and removed.

Width 18.0 in 463.0 mm Less
Weight 551.0 lb 250.0 kg Less


Capacity 7.0 ft³ 200.0 l Less

Tip Radius

Tip Radius 45.0 in 1144.0 mm Less

Interface Type

Interface Type Pin lock Pin lock Less

Power Rating

Minimum Power 11.0 HP 8.2 kW Less
Maximum Power 13.7 HP 10.2 kW Less
Maximum Torque 21.9 lb-ft @ 2400 rpm 29.7 Nm @ 2200 rpm Less
Rated Speed 2800-3600 rpm 2800-3600 rpm Less

Base Edge Thickness

Base Edge Thickness 1.3 in 32.0 mm Less


Bore 2.64 in 67.0 mm Less
Stroke 2.83 in 72.0 mm Less
Displacement 31.0 in³ 0.5 l Less
Aspiration Naturally aspirated Naturally aspirated Less
Rotation from Flywheel End Anti-clockwise Anti-clockwise Less
Combustion System Indirect injection Indirect injection Less
Compression Ratio 23.5:1 23.5:1 Less
Cooling System Liquid Liquid Less
Cycle 4 stroke 4 stroke Less
Number of Cylinders 2 inline 2 inline Less
Total Coolant Capacity 0.3 gal (US) 1.1 l Less
Total Lubricating Capacity 0.5 gal (US) 2.0 l Less

Engine Dimensions*

Dry Weight 126.0 lb 57.0 kg Less
Height 20.6 in 523.0 mm Less
Length 16.0 in 407.0 mm Less
Width 14.6 in 371.0 mm Less


Cat® Heavy Duty Buckets are well suited for semi-rocky soil or where hard bank material must be broken out and removed.

A lifetime of low cost

The 400 Series offers highly competitive performance and fuel economy. Through appropriate use of technology, these engines have been designed to be reliable and to offer low cost of ownership in the wide variety of markets they serve.

Across an extensive power band, the 400 Series range offers you the ability to configure a solution to your specific machine, territory and market requirements.

Overlapping power bands between models and an extensive range of options gives the opportunity to optimise performance and functionality, adding customer value to the application.

We provide one year warranties for constant speed engines and two year warranties for variable speed models as standard.

As a 400 Series end user, you also benefit from Perkins world class product support and service coverage that comes from being a full range power solutions provider.

Bucket Shape

Enhanced bucket shape allows material to flow more easily. Tapered bucket sidewalls allow for easy dumping of sticky material.

Compact design

The compact design of these engines makes them suitable for a range of applications, including skid steer loaders, mini excavators, wheel loaders, welders, lift platforms, lighting towers, small tractors, air compressors, turf care machinery and materials handling machinery.

Each of the six core engines of the 400 Series is configured for either Stage IIIA/Tier 4 Interim or Stage IIIB/Tier 4 Final emission standards, giving you flexibility depending on your market.

Rugged Design

Cat Buckets are designed for superior productivity, reliability and long life.

Performance and refinement

The 400 Series lineup gives you a seamless power range of 8.2-50 kW (11-67 hp) in 2, 3 and 4 cylinder models designed with a family look and feel. The range offers a wide variety of ratings and configurations that can be tailored to meet the most exacting needs.

The selective use of indirect and direct injection fuel systems enables Perkins to offer world-class engine refinement and low noise levels.

463 mm (18 in) Pin Lock Standard Equipment

Air inlet system
  • Cast iron exhaust manifold - side outlet
  • Inlet manifold

Control system
  • 12 volt alternator
  • 12 volt starter motor
  • Electronic Shut Off Solenoid (ESOS)

Cooling system
  • Coolant pump belt driven
  • Coolant temperature switch
  • Cooling fan

Fuel system
  • Fuel injection pump
  • Spin on fuel filter

  • Cast iron engine block
  • Closed circuit breather
  • Glow plug starting aid
  • Cold start capability to –20°C (-4°F) (aided)
  • Gradeability 35° continuous

Oil system
  • Lubricating oil pressure switch
  • Lubricating oil sump
  • Spin on lubricating oil filter