Parts for Detroit Diesel 471 Non-Turbo - (2 Valve Head Type) - Fuel Pump Section

Detroit Diesel 4-71 Non-Turbo (2-Valve Head Type) – Fuel Pump & Injector Parts Catalog

The Trusted Source for Detroit Diesel 4-71 Fuel System Components

When it comes to keeping your Detroit Diesel 4-71 non-turbo running at full efficiency, your fuel system is the heart of engine performance. Diesel Pro Power supplies brand-new and professionally rebuilt fuel pumps, injectors, filters, and fittings for the 4-71 engine — all in stock and ready to ship anywhere in the world.

With over 40,000 satisfied customers across commercial, military, and industrial fleets, Diesel Pro Power is the preferred online store for Detroit Diesel owners who expect reliability, quality, and support from people who know these engines inside and out.

Complete Fuel Pump Solutions for the Detroit Diesel 4-71

Left-Hand and Right-Hand Fuel Pumps — New and Rebuilt

We stock new and rebuilt fuel pumps for every 4-71 application, whether your setup requires a left-hand (LH) or right-hand (RH) rotation unit.

• New Fuel Pumps: 100% factory-fresh with precision gears, calibrated pressure settings, and OEM-grade housings. Perfect for full rebuilds or long-term service replacements.

• Rebuilt Fuel Pumps: Expertly remanufactured using OEM cores, precision-tested, and sold with a refundable core deposit. Ideal for operators who need like-new performance at a lower cost.

Each pump is bench-tested for flow and pressure before shipping, ensuring your 4-71 engine gets consistent fuel delivery from idle to wide-open throttle.

Fuel Pump Repair Kits

For technicians looking to reseal or service an existing pump, Diesel Pro carries universal repair kits that fit both left-hand and right-hand units. These include shaft seals, body gaskets, and O-rings designed to restore pressure integrity and prevent leaks — a must for any in-frame rebuild.

Fuel Pump Accessories and Small Parts

• Pump Gaskets and Seals – Prevent leaks and ensure airtight suction at the pump housing.

• Fuel Pump Couplings and Forks – Connect the pump drive shaft to the engine gear train, transferring torque smoothly without vibration.

• Elbows and Fittings – Choose from 90° or 45° inverted flare elbows, with or without restrictions, to customize your fuel line routing.

• Fuel Bypass Valves – Maintain optimal return-line pressure and prevent over-pressurization of the injection gallery.

Every part is built for long-term marine, industrial, and generator-set service — meeting or exceeding Detroit Diesel specifications.

Rebuilt Injectors for Detroit Diesel 4-71 Non-Turbo

Premium Rebuilt Unit Injectors — Ready to Install

Diesel Pro Power offers the full lineup of rebuilt unit injectors for the Detroit Diesel 4-71, precision-calibrated for smooth operation, efficient fuel burn, and dependable starts. Each injector is tested under real-world pressure and flow conditions before shipment.

Available calibrations include:

• HV6 and HV7 Injectors – Perfect for non-turbo 4-71 configurations, offering steady power and excellent fuel economy.

• N55 through N80 Injectors – Designed for various horsepower ratings, allowing customers to tailor output from conservative to higher-performance applications.

All rebuilt injectors are sold with a refundable core deposit, helping lower your replacement cost while promoting sustainable remanufacturing.

Injector Components & Service Parts

For technicians rebuilding injectors in-house, Diesel Pro carries a complete range of individual service components:

• Injector Tips (N55 to N90 ranges) – Precision-machined nozzles for optimal spray pattern and atomization.

• Injector Plungers – Hardened and lapped for consistent fuel delivery pressure.

• Springs, Seats, and Valves – OEM-spec replacements that restore proper injector balance and response.

• Injector Brackets and Washers – Keep injectors secure and leak-free under full fuel rail pressure.

Every small part in this catalog supports precise fueling, reduced smoke, and longer injector life for your 4-71 non-turbo.

Injector Timing Tools and Setup Equipment

Proper timing on the 4-71 is critical to avoid smoke, hard starts, and rough idle. Diesel Pro supplies genuine Kent-Moore-type injector timing tools in the exact heights Detroit Diesel specifies for each injector type:

• 1.484" tool for HV6, N65, and N80 injectors.

• 1.460" tool for HV7, N55, N60, N70, and N90 injectors.

• 1.508" tool for alternate calibrations and specific CPLs.

Each precision gauge helps you lock in correct rack height for synchronized injection timing across all four cylinders — saving hours of guesswork and tuning time.

Fuel Lines, Connectors, and Couplings

To complete your 4-71 fuel system installation, Diesel Pro Power stocks all related jumpers, connectors, elbows, and couplings:

• Short and Long Fuel Jumper Lines – Each engine uses one of each type per cylinder bank.

• Fuel Pipe Connector Washers – Two required per injector; always replace to prevent leaks.

• Fuel Pump Coupling and Fork Assemblies – Connect your pump securely to the drive gear.

• Elbows for Suction and Return – No-restriction fittings in 90° and 45° configurations for maximum flow efficiency.

All hardware is precision-threaded and corrosion-resistant — ideal for marine or stationary power units where vibration and exposure are constant challenges.

Primary and Secondary Fuel Filters

Filter Bases

Choose between spin-on and cartridge-type bases to match your setup:

• Primary Filter Bases – 1-inch thread for spin-on filters.

• Secondary Filter Bases – 3/4-inch thread for spin-on or cartridge units.
  Each base is machined for perfect sealing, ensuring clean diesel flow to your injectors.

Filter Elements

• Spin-On Primary Filters (TP936) – Fast, clean change-outs; ideal for modernized systems.

• Cartridge Primary Filters (T553) – Traditional Detroit Diesel design still used in legacy 4-71 installations.

• Spin-On Secondary Filters (TP928) and Cartridge Secondary Filters (TP509) – Deliver fine filtration before fuel enters injectors.

Water Separation & Cooling Options

Diesel Pro also offers Racor fuel/water separator units with elements in 2-micron (Brown Top) or 30-micron (Red Top) ratings — protecting your injection system from water contamination.

For marine and stationary applications, add a Detroit Diesel fuel cooler with 2" water connections to regulate fuel temperature and improve injection system longevity.

Additional Fuel System Hardware and Accessories

• Fuel Pressure Switches (5 PSI and 10 PSI) – Used on Detroit Diesel and Cummins systems for fuel/oil pressure monitoring.

• Fuel Gauges and Senders (12V) – Compact, back-lit gauges designed for marine dashboards or generator panels.

• Governor Bearings, Springs & Gaskets – Keep your mechanical governor smooth, preventing surging or hunting at idle.

• Detroit Diesel Green Engine Paint – Perfect finishing touch for restoration or rebuild projects.

Every component listed is stocked in Diesel Pro’s warehouse and ships with real-time tracking so you can complete your job without delays.

Why Buy Your Detroit Diesel 4-71 Fuel System Parts from Diesel Pro Power

• All parts in stock and ready to ship worldwide — No waiting, no backorders.

• Real-time order tracking — Know exactly when your parts will arrive.

• OEM-grade quality — Every component meets or exceeds Detroit Diesel specifications for pressure, flow, and fit.

• Expert customer support — Talk to Detroit Diesel-trained professionals who can help you identify the correct fuel pump rotation, injector type, or filter setup for your exact 4-71 model.

• Trusted reputation — Over 40,000 satisfied customers rely on Diesel Pro Power for fast, accurate, and professional service.

From full engine rebuilds to minor repairs, Diesel Pro Power gives you everything you need to keep your Detroit Diesel 4-71 non-turbo running like new — with fuel pumps, injectors, filters, seals, and fittings available at your fingertips.