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Parts for Detroit Diesel 271 for Australia - Injector Section
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Detroit Diesel 2-71 Injector Parts Catalog
The Detroit Diesel 2-71 is one of the most iconic small two-cylinder engines ever produced by General Motors’ Detroit Diesel Division. Beloved for its compact design, reliability, and exceptional fuel economy, the 2-71 was widely used in industrial, generator, and marine applications. Proper fuel delivery and combustion efficiency are the heart of any Detroit Diesel engine — and that’s exactly where this injector parts catalog comes in.
At Diesel Pro Power, you’ll find a full range of 2-71 injector components — rebuilt injectors, service kits, timing tools, and related accessories — all in stock and ready to ship worldwide. Trusted by over 40,000 satisfied customers, Diesel Pro Power delivers OEM-quality parts that ensure your engine runs cleanly, efficiently, and at peak power output.
Fuel Injection System Overview for Detroit Diesel 2-71 Engines
The Detroit Diesel 2-71 uses the same proven unit injector system found across the 71 Series family. Each cylinder has its own mechanically actuated injector, designed to meter and atomize the exact amount of fuel required for optimal combustion.
The injectors used in the 2-71 are precision-built to handle high pressures and fine tolerances. Over time, however, they can wear down due to fuel impurities, carbon buildup, or injector spring fatigue. Replacing or rebuilding injectors restores proper fuel atomization and ensures smooth operation, reliable starts, and maximum torque output.
The HV6 and HV7 injectors listed in this catalog are the most common configurations for the 2-71 model, depending on governor setup, engine rating, and fuel delivery calibration.
Rebuilt Detroit Diesel Injectors for 2-71 Engines
Detroit Diesel Injector HV6 – Rebuilt
The HV6 injector is a high-quality rebuilt component designed specifically for the Detroit Diesel 2-71. Each injector is professionally remanufactured, tested to OEM standards, and sold with a refundable core deposit.
Features:
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Precision-calibrated for even fuel atomization.
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Ideal for standard-speed 2-71 applications.
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Rebuilt with new internal components including nozzles, plungers, and seals.
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Tested for flow consistency and pressure retention.
These injectors restore original performance characteristics, ensuring efficient fuel burn, minimal smoke output, and reliable operation under load.
Detroit Diesel Injector HV7 – Rebuilt
The HV7 injector is engineered for engines requiring higher fuel delivery or different timing calibration than the HV6. Like all Diesel Pro Power rebuilt injectors, the HV7 model is fully disassembled, ultrasonically cleaned, and rebuilt with new internal components.
Benefits:
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Rebuilt to OEM or better specifications.
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Ready for immediate installation.
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Provides consistent spray pattern and fuel control.
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Sold with refundable core credit for easy exchange.
Both HV6 and HV7 injectors are backed by Diesel Pro Power’s performance guarantee and global support network.
Injector Timing Tools for Detroit Diesel 2-71
Precise injector timing is crucial for smooth engine performance and fuel efficiency. Diesel Pro Power carries multiple Kent-Moore timing tools designed for accurate setup across different injector styles.
For use with HV6, N65, and N80 injectors. This tool ensures correct plunger height and timing synchronization during installation.
Used for HV7, N45, N50, N55, N60, N70, and N90 injectors. It’s precision-machined and designed to maintain factory timing tolerances.
An alternative calibration option for engines that require a specific plunger height adjustment. Manufactured to Detroit Diesel standard J-Tools dimensions for professional use.
Proper timing setup improves throttle response, fuel efficiency, and reduces white smoke during startup.
Supporting Components for 2-71 Injector Installation
The injector system relies on a network of fittings, washers, and brackets to maintain fuel pressure and proper alignment. Diesel Pro Power supplies all necessary hardware for complete injector servicing.
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Sold individually (2 per injector required).
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Seal the junction between the injector and fuel jumper line.
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Made from durable copper alloy for optimal heat resistance.
Fuel Jumper Line for HV Type Injector
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Precision-formed steel tubing for HV injectors.
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Maintains fuel delivery integrity under high vibration conditions.
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Corrosion-resistant coating for marine and industrial environments.
Injector Bracket & Bolt Assembly
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Keeps injector body securely fastened to the cylinder head.
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OEM-correct hardware ensures alignment and sealing.
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Includes bracket, washer, and bolt components.
These small components are vital to maintaining consistent fuel pressure and preventing leaks that can cause performance issues.
Injector Service & Maintenance Components
Detroit Diesel Injector Service Kit
An essential kit that includes seals, washers, and minor internal parts for routine injector maintenance. Perfect for experienced technicians or shops performing multiple injector rebuilds.
High-strength replacement valve and spring for maintaining proper injector seating and return pressure. Each component is tested for spring tension and valve lift accuracy.
Provides a stable base for injector valve springs, ensuring even pressure distribution and preventing premature wear.
Restores factory injector tension and prevents fuel dribble during shutoff. Compatible with Series 71 and 92 injectors as well.
Injector Control Tube Components
The control tube system links the injector racks to the governor, allowing synchronized fuel delivery.
Bracket for Injector Control Tube
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Precision-machined for correct alignment.
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Compatible with both 71 and 92 Series configurations.
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Prevents excessive vibration or flex in control linkage.
Spring for Injector Control Tube
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Maintains proper tension between control rods.
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Reduces backlash and ensures smooth rack movement.
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Engineered from tempered steel for long service life.
These components are small but critical for accurate fuel rack control, contributing directly to engine throttle response and smooth idle.
Additional Injector System Hardware
Bolt for Adjusting Governor Booster Spring
Used on 2-71, 3-71, 4-71, and 6-71 engines. This 2.5-inch-long bolt ensures precise tension adjustment between the governor spring and injector linkage, fine-tuning engine responsiveness.
Seals the governor housing to prevent oil leaks and maintain clean fuel control operation. Constructed from durable gasket material resistant to diesel fuel and lubricating oil exposure.
Pin for Injector Control (¼” x 9/64”)
Small alignment pin used in the injector control mechanism. Maintains mechanical precision in the governor linkage and injector rack setup.
Fuel Gauge and Sender Components
Though not part of the injector itself, proper fuel monitoring complements the fuel delivery system.
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Universal fit for Detroit Diesel, Caterpillar, and Cummins engines.
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Includes built-in illumination bulb for night visibility.
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Durable marine-grade construction.
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Adjustable up to 19” depth for custom tank installations.
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Provides accurate readings for both diesel and marine fuel tanks.
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Designed for reliability in harsh marine or industrial environments.
These accessories help maintain fuel management precision across older Detroit Diesel installations, especially in marine applications where accurate fuel level readings are critical.
Common Maintenance Tips for Detroit Diesel 2-71 Injectors
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Use Clean Fuel: Always ensure diesel is filtered to prevent clogging injector nozzles.
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Check Injector Rack Adjustment: Regular rack inspection ensures equal fuel delivery between cylinders.
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Replace Washers and Seals During Service: These are low-cost components that prevent leaks and contamination.
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Keep Timing Accurate: Use the correct timing tool for your injector type. Improper timing causes hard starts and smoke.
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Perform Routine Testing: If you suspect poor atomization, remove injectors and bench-test spray patterns.
Why Choose Diesel Pro Power for Your 2-71 Injector Parts
One-stop shop: Diesel Pro Power offers every component for your Detroit Diesel 2-71 injector system, from complete injectors to minor seals and brackets—all in stock.
Worldwide shipping: Every order is processed quickly and shipped with real-time tracking, ensuring minimal downtime for your vessel, generator, or industrial equipment.
Expert support: Our team includes Detroit Diesel-trained technicians who can provide fitment guidance, timing specifications, and injector setup advice.
Proven quality: All rebuilt injectors and parts meet or exceed OEM manufacturing standards, ensuring performance reliability equal to or better than the original components.
Trusted by professionals: With over 40,000 satisfied customers across commercial fleets, government vessels, and private owners, Diesel Pro Power is the most trusted online source for genuine Detroit Diesel parts.
Applications for Detroit Diesel 2-71 Engines
The 2-71’s versatility made it a favorite for a wide range of uses:
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Marine propulsion and generators: Common in small tugboats, sailboats, and auxiliary power units.
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Industrial machinery: Used in pumps, air compressors, and stationary power equipment.
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Construction and mining equipment: Valued for dependability and simplicity in harsh conditions.
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Military and government equipment: Long service life and easy field maintenance made it ideal for utility vehicles.
Each of these applications depends on precise fuel injection performance to deliver efficient, smoke-free operation — a hallmark of the 71 Series design.
