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Detroit Diesel 2-71 Engine Parts Catalog

Premium Aftermarket Parts for Detroit Diesel 2-71 Engines

The Detroit Diesel 2-71 is a compact, inline 2-cylinder, two-stroke engine from the legendary 71 Series. Known for its mechanical simplicity, rugged design, and long service life, it remains a trusted engine in marine, industrial, and generator applications around the world.

Diesel Pro Power offers a complete selection of aftermarket replacement parts for the 2-71 engine. All parts are engineered to meet or exceed OEM specifications, and we offer worldwide shipping within 24 hours.


Detroit Diesel 2-71 Engine Specifications

  • Engine Type: Inline 2-Cylinder

  • Displacement: 142 cubic inches (2.3L)

  • Cycle: Two-Stroke Diesel

  • Bore x Stroke: 4.25" x 5"

  • Aspiration: Naturally Aspirated

  • Cooling System: Water-Cooled

  • Applications: Marine auxiliaries, light industrial equipment, generators, compressors


Full Parts Catalog for Detroit Diesel 2-71

Cylinder Kit – Detroit Diesel 2-71

  • Aftermarket cylinder kits including piston, rings, and liner

  • Wrist pins, retainers, and seals included

  • Designed for long service life and proper compression

Gauges – Detroit Diesel 2-71

  • Oil pressure, water temperature, RPM, and voltage gauges

  • Available in mechanical or electrical formats

  • Marine-grade and panel-mount configurations

Engine Water Pump – Detroit Diesel 2-71

  • Circulation water pumps for engine cooling

  • Includes gasket and pulley if applicable

  • Durable cast housing and impeller

Marine Water Pump – Detroit Diesel 2-71

  • Raw water pumps for marine cooling circuits

  • Bronze impeller designs for corrosion resistance

  • Available as complete units or rebuild kits

Cylinder Head – Detroit Diesel 2-71

  • Remanufactured and aftermarket head assemblies

  • Includes valves, guides, seats, and springs

  • Direct bolt-on replacement

Fuel Pump – Detroit Diesel 2-71

  • Mechanical fuel transfer pumps

  • Mounting gaskets and flanges included

  • Aftermarket units built to match OEM fuel flow and pressure

Injector – Detroit Diesel 2-71

  • Factory-calibrated unit injectors

  • Includes O-rings, clamps, and fuel return fittings

  • Fully compatible with stock timing and fuel pressure

Blower – Detroit Diesel 2-71

  • Roots-style scavenging blower

  • Remanufactured or new aftermarket assemblies

  • Includes rotors, shafts, bearings, and seals

  • Critical for correct air-fuel scavenging in 2-stroke operation

Oil Pump – Detroit Diesel 2-71

  • Gear-driven oil pumps

  • Delivers consistent oil pressure across RPM range

  • Includes relief valve and gasket

Crankshaft – Detroit Diesel 2-71

  • Remanufactured crankshafts

  • Precision balanced and magnaflux-tested

  • Includes thrust washers, keyways, and seal surfaces

Connecting Rod – Detroit Diesel 2-71

  • Aftermarket forged connecting rods

  • Bushings and rod bolts available

  • Sized for direct compatibility with factory crank and piston

Camshaft – Detroit Diesel 2-71

  • OEM-profile aftermarket camshafts

  • Designed to match factory valve timing and injector lift

  • Includes followers, bushings, and thrust plates

Exhaust – Detroit Diesel 2-71

  • Manifolds for dry and wet exhaust systems

  • Elbows, outlet adapters, and flange kits

  • High-heat gaskets and clamps available

Gasket – Detroit Diesel 2-71

  • Full engine gasket kits (upper and lower)

  • Head gaskets, intake, oil pan, valve cover, blower, and manifold seals

  • Heat- and oil-resistant materials

Switch & Solenoid – Detroit Diesel 2-71

  • Starter solenoids, ignition switches, oil pressure switches

  • Waterproof and marine-grade options available

Manuals & Tools – Detroit Diesel 2-71

  • Service manuals, parts manuals, and troubleshooting guides

  • Specialty tools for injector timing, blower removal, and valve adjustment

Starter & Alternator – Detroit Diesel 2-71

  • 12V and 24V starters

  • Marine alternators with external or internal regulation

  • Mounting brackets and wiring accessories

Hose, Clamp – Detroit Diesel 2-71

  • Coolant, fuel, and oil hoses

  • Stainless steel marine clamps

  • High-temp silicone and reinforced rubber options

Fuel Filter – Detroit Diesel 2-71

  • Spin-on and cartridge-style filters

  • Filter bases and mounting brackets

  • Replacement elements with OEM filtration performance

Oil Filter – Detroit Diesel 2-71

  • Spin-on oil filter kits

  • Filter heads, bases, and adapters

  • High-capacity elements for extended service intervals

33C Marine Cable (3/16") – Detroit Diesel 2-71

  • Marine-grade control cable for throttle and shift

  • Stainless steel core for corrosion resistance

  • Compatible with standard lever systems

43C Marine Cable (1/4") – Detroit Diesel 2-71

Industrial Cable – Detroit Diesel 2-71

  • Control cables for generator sets, compressors, and stationary engines

  • Multiple lengths and connection types available

Paint & Sealant – Detroit Diesel 2-71

  • OEM-color engine enamel paint

  • Heat-resistant gasket and thread sealants

  • Spray and brush-on options

Power Take-Off (PTO) – Detroit Diesel 2-71

  • PTO clutches and drive adapters

  • Hydraulic pump mounts and accessory plates

  • Shafts, seals, and housings


Why Choose Diesel Pro Power?

  • 40,000+ satisfied customers worldwide

  • All parts are aftermarket, engineered to OEM specs

  • Fast global shipping within 24 hours

  • Expert support to help you find the right part the first time

  • User-friendly catalog to quickly navigate to the part you need


Additional Resources 


Detroit Diesel 2-71 Torque Specifications

Marine Detroit Diesel 2-71 Component Maintenance Life

Practical Guide To Servicing Your Detroit Diesel 71 Series Inline (271, 371, 471, & 671 ) – Part 1

Engine Components and Their Roles (Covering Detroit Diesel 271, 371, 471, 671 Engines)

Key Maintenance Procedures (Covering Detroit Diesel 271, 371, 471, 671 Engines)

Assembly and Disassembly Guidelines (Covering Detroit Diesel 271, 371, 471, 671 Engines)

Safety Protocols for Technicians (Working On Detroit Diesel 271, 371, 471, 671 Engines)

Torque Specifications And Wear Limits (Covering Detroit Diesel 271, 371, 471, 671 Engines)

AIR SCAVENGING AND BLOWER SYSTEM FOR DETROIT DIESEL 71 SERIES INLINE ENGINES (271, 371, 471, 671)
Best Practices for Keeping Air Intake and Exhaust Systems Clean For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
Cleaning and Inspection Processes For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
Safe Cleaning Procedures Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)
Critical Inspection Points For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
Valve and Injector Maintenance For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
Checking Valve Clearance and Injector Timing For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
Tools and Equipment For Maintaining Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
Detailed Overhaul Process For Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)
Common Troubleshooting Tips For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
Disassembly Of Fuel Lines For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)
Disassembly Of Exhaust Manifold For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Disassembly Of Throttle Controls For Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

Disassembling The Starting Motor, Battery-Charging Generator, and Electrical Equipment For Series 71 Inline Engines (271, 371, 471, 671)

DISASSEMBLY OF AIR COMPRESSOR (IF USED) FOR DETROIT DIESEL 71 SERIES INLINE ENGINES (271, 371, 471, 671)

Disassembly Of The Radiator and Fan Guard or Heat Exchanger For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

DISASSEMBLY OF AIR BOX COVERS FOR DETROIT DIESEL 71 SERIES INLINE ENGINES (271, 371, 471, 671)

Disassembly Of Cylinder Head and Valves For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Disassembly Of Governor Control Assembly For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Disassembly Of Water Pump and Coolant System Components (Freshwater and Raw Water Pumps) For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Disassembly Of The Blower For Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

Disassembly Of Blower Drive Gear and Support Assembly For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Disassembly Of The Camshaft and Balance Shaft For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Disassembly Of Flywheel and Flywheel Housing For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

DISASSEMBLY OF THE OIL SYSTEM COMPONENTS FOR DETROIT DIESEL 71 SERIES INLINE ENGINES (271, 371, 471, 671)

Disassembly Of Cylinder Block End Plates For Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

Removing Air Box Drains For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Disassembly Of Engine Lifter Brackets For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

REMOVING THE VALVE ROCKER COVER ON A DETROIT DIESEL 71 SERIES INLINE ENGINE (271, 371, 471, 671)

Disassembling The Air Cleaner & The Air Shutdown Housing For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Detailed Guidance on How to Properly Reassemble Components For Series 71 Inline Engines (271, 371, 471, 671)

Torque Specifications Of 71 Series Inline Engines (271, 371, 471, 671)

Recommended Sealants and Techniques to Prevent Leaks After Assembly For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Disassembly Of Components For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Function and Operation of the Oil Pump For Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

Key Components of the Oil Pump and Model-Specific Variations (271, 371, 471, 671)

INSIGHTS FROM THE DETROIT DIESEL 71 SERIES INLINE ENGINE MANUAL VOLUME 2 (271, 371, 471, 671)

LUBRICATION SYSTEM FOR DETROIT DIESEL 71 SERIES INLINE ENGINES (271, 371, 471, 671)

Disassembly of the Oil Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Inspection and Cleaning of Oil Pump Parts For Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

Reassembly of the Oil Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Testing and Troubleshooting the Oil Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Preventive Maintenance Tips For Oil Pumps For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Oil Pump Specifications and Clearances For Oil Pumps For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Oil Filters For Detroit Diesel 71 Series Inline Engines (271,371, 471, 671)

LUBRICATING OIL PRESSURE REGULATOR FOR DETROIT DIESEL 71 SERIES INLINE ENGINES (271, 371, 471, 671)

Oil Cooler For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Oil Pan For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Ventilating System for Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Recommended Oil and Maintenance Intervals For Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

Oil Pump Maintenance For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Troubleshooting Common Lubrication System Issues For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Introduction to the Cooling System and Heat Exchanger For Detroit Diesel 71 Series Engines (271, 371, 471, 671)

Radiator Cooling For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Cooling System and Heat Exchanger For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Cooling System Configurations For 71 Series Inline Engines (271, 371, 471, 671)

COMPARING RADIATOR AND HEAT EXCHANGER COOLING IN DETROIT DIESEL 71 SERIES INLINE ENGINES (271, 371, 471, 671)

Types of Coolant for Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Considerations for High-Temperature and Freezing Conditions for Your Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

Chemicals & Coolant For Your Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

Filling and Bleeding the Cooling System For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Routine Cooling System Checks and Maintenance For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Maintaining The Heat Exchanger Core For Detroit Diesel 71 Series Inline Engine (271, 371, 471, 671)

Guidelines for Coolant For Detroit 71 Series Inline Engines (271, 371, 471, 671)

Troubleshooting Common Cooling System Issues For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

LONG-TERM BENEFITS OF MAINTAINING THE COOLING SYSTEM FOR DETROIT DIESEL 71 SERIES INLINE ENGINES (271, 371, 471, 671)

Introduction to the Water Pump System for the 71 Series Inline Engine (271, 371, 471, 671)

Disassembly of the Freshwater Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Reassembly of the Freshwater Pump For Detroit Diesel 71 Series Inline (271, 371, 471, 671)

Freshwater Pump Maintenance For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Raw Water Pump Maintenance (Marine Application) For 71 Series Inline Engines (271, 371, 471, 671)

Disassembly of the Raw Water Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Reassembly of the Raw Water Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Importance of Regular Freshwater and Raw Water Pump Maintenance For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Water Pump For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Thermostat Operation For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Ventilation and Crankcase Vapor Collection For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Troubleshooting and Specifications For Cooling & Lubrication In Detroit Diesel 71 Series Inline (271, 371, 471, 671)

Overview of Troubleshooting in Lubrication and Cooling Systems In Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

SYSTEMATIC APPROACH TO TROUBLESHOOTING DETROIT DIESEL 71 SERIES INLINE ENGINES (271, 371, 471, 671)

Cooling System Troubleshooting For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Torque Specifications for Key Components In The Lubrication & Cooling Systems Of Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Parts Grading and Condition Assessment For Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Troubleshooting Tips for Improved Efficiency In Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)

Summary of Troubleshooting and Specifications In Detroit Diesel 71 Series Inline Engines (271, 371, 471, 671)


Detroit Diesel 271,371,471,671 Inline Engine Tune Up Guide

FAQ From Detroit Diesel 71 Series Inline Engine Service Manual (271, 371, 471, 671)  




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