Perkins 400 Series Technical Data Sheet

The Perkins 400 Series is a family of robust, highperformance diesel engines designed for a wide range of applications, including construction equipment, agricultural machinery, marine propulsion, and power generation. This data sheet provides an overview of the key specifications, features, and optional accessories available for the 400 Series.

1. General Information

• Manufacturer: Perkins Engines Company Limited
• Engine family: 400 Series (4cylinder, 6cylinder, and 8cylinder variants)
• Fuel type: Diesel (ULSD compatible)
• Cooling system: Watercooled, with optional aftercooler
• Lubrication system: Full pressure, dry sump
• Compliance: Tier4 Final / EPA 2020, EuroVI, and previous Tier3 / StageIIIA versions

2. Engine Models

The 400 Series is available in three cylinder counts, each offering multiple displacement options. The table below gives the most common models.

3. Performance Characteristics

3.1 Power Curve

All 400 Series engines deliver a flat torque curve with peak torque typically occurring between 1,300rpm and 1,800rpm. Maximum power is reached at 2,300rpm, providing a wide usable band for heavyduty equipment.

3.2 Fuel Consumption

• 4cylinder: 215g/kWh (average)
• 6cylinder: 210g/kWh (average)
• 8cylinder: 205g/kWh (average)

Fuel consumption figures are based on ISO 81782 test cycles and are provided for reference only; realworld values may vary with load, altitude, and operating conditions.

3.3 Emissions

The series meets Tier4 Final / EuroVI standards using a combination of advanced EGR, selective catalytic reduction (SCR), and a diesel oxidation catalyst (DOC). Emissions are typically:

• NOx: < 0.02g/kWh
• PM: < 0.01g/kWh
• CO: < 0.15g/kWh
• HC: < 0.02g/kWh

4. Mechanical Specifications

4.1 Bore & Stroke

• 4cylinder: 115mm 124mm
• 6cylinder: 115mm 124mm
• 8cylinder: 115mm 124mm

4.2 Compression Ratio

16.5:1 (standard), optional 17.5:1 for highaltitude applications.

4.3 Crankshaft & Connecting Rods

All models feature a forged steel crankshaft with counterbalanced main bearings and forged steel connecting rods with nitrided surfaces for wear resistance.

4.4 Cylinder Block & Head

Cast iron block with wet aluminum cylinder heads, equipped with watercooled exhaust ports and a closeddeck design for increased rigidity.

5. Ancillary Systems

5.1 Fuel System

• Commonrail injection (up to 2,000bar)
• Electronic control unit (ECU) with diagnostics
• Optional highpressure pump for marine applications

5.2 Cooling System

• Enginemounted water pump (mechanical)
• Thermostatically controlled coolant flow
• Optional aftercooler (up to 12C temperature drop)

5.3 Lubrication System

• Fullpressure, drysump with oil cooler
• Capacity: 12L (4cylinder), 16L (6cylinder), 20L (8cylinder)
• Oil grade: SAE15W40 (ISO VG460) or 5W30 lowviscosity for cold climates

6. Mounting & Dimensions

7. Optional Accessories

• Marine geardriven or beltdriven alternator (up to 30A@12V)
• Integrated airstart system for coldweather operation
• Turbocharger upgrades (singlestage, variable geometry)
• Aftertreatment packages DPF, SCR, or combined systems
• Heavyduty air cleaners (cyclonic or oilfree)
• Remote monitoring module (OEMagnostic CAN bus interface)

8. Service & Maintenance

Typical service intervals are based on operating hours:

• Oil change: every 500hours or 12months
• Fuel filter: every 1,000hours
• Air filter: every 2,000hours (or more frequently in dusty environments)
• Coolant flush: every 2,000hours
• Injector service: every 3,000hours (or as indicated by ECU diagnostics)

All maintenance procedures must follow the Perkins Service Manual (PMSeries400SM) and use Perkinsapproved parts to retain warranty coverage.

9. Compliance & Certification

The Perkins 400 Series holds the following certifications:

• EPA Tier4 Final (USA)
• EU StageIV / EuroVI (Europe)
• ISO 85285 (Generator set compliance)
• ABS / DNV GL (Marine applications)

10. Ordering Information

Engine orders are placed using the Perkins Part Number (PPN) system. A typical PPN format is:

PPNSeriesCylindersDisplacementPowerCode

Example: PPN400610750184 represents a 6cylinder, 10,750cc engine rated at 184kW.

11. Summary

The Perkins 400 Series combines high power density, low emissions, and a durable design to meet the demanding requirements of modern hydraulic and mechanical equipment. Its modular construction simplifies integration, while the extensive accessory lineup enables customization for diverse industries. By adhering to the latest emissions regulations without sacrificing performance, the 400 Series remains a competitive choice for OEMs and end users worldwide.