Parts for Detroit Diesel 671 Turbo - Turbo Section

Detroit Diesel 6-71 Turbo – Complete Turbocharger Parts Catalog

The Detroit Diesel 6-71 Turbo engine remains one of the most respected and widely used marine and industrial powerplants in diesel history. Built on the legendary 71 Series architecture, the turbocharged 6-71 variant was designed to deliver superior horsepower, torque, and efficiency compared to its naturally aspirated predecessors. In marine applications—ranging from commercial vessels to pleasure yachts—the turbo setup allows operators to enjoy increased boost pressure, higher air density, and improved combustion for reliable power under load.

At Diesel Pro Power, we proudly supply the most complete catalog of Detroit Diesel 6-71 turbocharger parts, all available in stock and ready to ship worldwide. Every part listed below meets or exceeds OEM quality standards and is backed by our service commitment to over 40,000 satisfied customers across the globe.

Turbochargers for Detroit Diesel 6-71 Engines

The turbocharger is the core of the 6-71 turbo system. It compresses incoming air before it enters the cylinders, dramatically improving combustion efficiency and overall engine performance.

Detroit Diesel Turbocharger for 6-71 Marine Engines

Our new turbocharger assembly for Detroit Diesel 6-71 engines provides consistent boost pressure, quick spool-up, and extended service life under continuous operation. Precision-balanced turbine and compressor wheels ensure vibration-free performance, while the high-temperature-resistant housing maintains structural integrity in the harshest marine environments.

• Designed for intercooled 6-71 marine configurations

• Manufactured to OEM-grade tolerances for perfect fit

• Ready for installation—no core return or rebuild delay

This same turbo model also fits the 12V71, 8V149, 12V149, and 16V149 engines, but in this catalog, our focus remains on the 6-71 marine configuration, ensuring you find the exact match for your rebuild or repower project.

Rebuilt Turbocharger for Detroit Diesel 6-71 Aftercooled Engines

For customers seeking a cost-efficient alternative, Diesel Pro Power offers professionally rebuilt turbochargers for 6-71 aftercooled configurations. Each unit is fully disassembled, cleaned, and inspected with precision metrology instruments before reassembly with new seals, bearings, and balancing.

• Turbine housing ratio: 1.03

• Compressor housing ratio: 0.75

• Balanced to OEM specifications to ensure peak performance

• Perfect for maintaining the power curve of Series 71 and 92 marine setups

Every rebuilt unit undergoes a dynamic balancing test and quality control inspection before shipment, guaranteeing you receive a component that performs like new.

Turbo Gaskets & Sealing Components

A turbocharger’s performance depends on maintaining airtight and oil-tight connections throughout the system. Diesel Pro Power provides a full range of gaskets to ensure flawless sealing between the turbo, riser, and exhaust connections.

Turbo Inlet Gaskets

• Constructed from high-temperature, pressure-resistant composite material.

• Available in multiple sizes to fit both standard and custom turbo applications.

• Prevents exhaust gas leakage that can reduce boost efficiency.

Common gasket dimensions for the Detroit Diesel 6-71 turbo setup include:

• Inside diameter: 5”, Outside diameter: 6.5”

• Inside diameter: 5.5”, Outside diameter: 6.5”

Turbo Oil Gaskets

Oil supply and return gaskets play a crucial role in protecting the turbo’s bearings from contamination and maintaining consistent lubrication pressure.

• Turbo Oil Supply Gasket – Width: 2.5”, Length: 1.25”

• Turbo Oil Return Gasket – Width: 3”, Length: 1.5”

• Manufactured from premium composite material resistant to high heat and oil saturation.

Regular gasket replacement during maintenance intervals ensures the longevity of your turbocharger assembly and prevents costly oil leaks.

Turbo Hardware: Bolts, Nuts, Studs & Washers

The hardware components that secure the turbo to the exhaust manifold and riser must endure extreme heat cycles and vibration. Diesel Pro Power provides corrosion-resistant fasteners designed specifically for Detroit Diesel 6-71 turbo assemblies.

Turbo Flange Studs

• 3/8”-16/24 x 1.88” length

• Made from heat-treated steel for long-lasting durability

• Precision-threaded for a secure fit

Turbo Bolts, Washers & Nuts

Each turbo typically uses four of each fastener component:

• Bolts – Heavy-duty turbo mounting bolts

• Washers – Hardened, high-temperature steel

• Nuts – Self-locking design for vibration resistance

These small but essential pieces ensure the structural stability of the turbo assembly, helping maintain alignment and seal integrity under full boost load conditions.

Marine Turbo Riser Components

The riser system on a Detroit Diesel 6-71 turbocharged marine engine redirects exhaust gases safely while maintaining backpressure balance. Diesel Pro Power carries marine riser connectors, riser blankets, and riser gaskets specifically designed for the 6-71 turbo configuration.

Marine Riser Connector

• Built for 6-71 turbocharged marine engines

• Heavy-duty stainless-steel construction with precision-welded joints

• Designed to handle constant exposure to high exhaust temperatures and saltwater environments

Riser Blankets

• Coast Guard approved insulation blankets

• Made with ultra-heavy-duty materials and stainless-steel wire mesh interiors

• Available for Johnson & Towers and other major marine configurations

These blankets provide fire protection and thermal insulation, improving onboard safety and compliance with marine standards.

Turbo Clamps & Couplings

High-strength clamps and hoses are essential for securing pressurized air passages in turbo systems. Diesel Pro Power offers a complete range of turbo clamps and hump hoses engineered to handle both high boost pressure and extreme temperature conditions.

Turbo Clamps

• 5.25” and 5.75” outside diameter options

• Precision-fit V-band style

• Stainless steel construction to prevent corrosion

• Maintains a leak-free seal under extreme pressure

Hump Hoses

Our reinforced hump hoses accommodate vibration, thermal expansion, and alignment variations between turbo and intercooler components.

• Available in diameter configurations from 4” to 6”

• Designed for both straight and reduction couplings

• Resistant to oil, saltwater, and continuous high temperatures

Common reduction configurations include:

• 6” to 5.5”

• 6” to 5”

• 5.5” to 5”

• 5” to 4”

Each hose features reinforced silicone construction with multi-ply polyester or aramid fiber reinforcement for extended durability.

Turbo Silencers & Filtration Systems

Turbo Silencers

The Detroit Diesel turbo silencer minimizes noise while maintaining airflow efficiency. Built from corrosion-resistant materials, it ensures smooth, quiet operation even under full load.

Turbo Silencer Filter Element

• Replacement filter for silencer assemblies with 8.25” outer diameter

• Ensures clean airflow into the turbocharger

• Extends turbo life by filtering contaminants before they reach compressor blades

Airsep Systems for Detroit Diesel 6-71

The Walker Engineering Airsep System provides a complete closed crankcase ventilation and filtration solution for the Detroit Diesel 6-71 turbo engine.

Single Turbo Airsep System

• Designed specifically for the 6-71 single turbo configuration

• 6” flange for direct fitment

• Reduces oil mist discharge and improves intake air quality

• Helps maintain cleaner turbocharger and intercooler components

Air Filters and Accessories

Diesel Pro Power offers several Airsep filter options:

• Tapered filters (7.5” x 10”, 9” x 9”, 9” x 12”)

• Available top covers for Airsep filters

• Vacuum regulators to maintain consistent crankcase pressure

Each filter and accessory is manufactured to resist heat, vibration, and marine humidity—essential for high-output Detroit Diesel engines operating in coastal environments.

Airsep Maintenance Components

Maintaining the Airsep system ensures long-term turbo efficiency and optimal engine performance. Diesel Pro Power supplies cleaning kits, spring sets, and vacuum regulators for all Series 71 configurations.

• Airsep Filter Cleaning Kit – Includes cleaning solution and oil for reusable filter maintenance.

• Airsep Spring Sets – Available in 7.5” and 9.5” lengths, with sets of four per unit.

• Vacuum Regulators – Designed to manage crankcase pressure and prevent oil backflow into the intake system.

By regularly servicing the Airsep assembly, operators can maintain stable turbo boost levels and reduce the buildup of carbon or oil residue in the compressor housing.

Turbo Sealing Compounds & High-Temperature Adhesives

Proper sealing of exhaust flanges and turbo housings is critical. Diesel Pro Power offers Silkolene 762 High-Temperature Jointing Compound, engineered for extreme conditions.

• Temperature range: 550°C to 760°C

• Ideal for sealing turbocharger joints and exhaust manifold connections

• Prevents gas leaks and withstands thermal expansion

This compound ensures reliable sealing even under full-boost operation, protecting components from erosion and exhaust leaks.

Complete Turbo Maintenance for Detroit Diesel 6-71

Turbo systems require periodic inspection to ensure continued performance and safety. Diesel Pro Power recommends routine maintenance that includes:

1. Inspecting clamps and couplings for wear or oil residue.

2. Replacing gaskets and seals during every service interval.

3. Cleaning or replacing silencer and Airsep filters.

4. Checking shaft end-play and spin balance of the turbocharger.

5. Ensuring riser blankets and insulation remain intact and properly fitted.

Our catalog makes it simple to source every item needed to perform complete turbo system maintenance or full rebuilds—all from one trusted supplier.

Why Choose Diesel Pro Power for Detroit Diesel 6-71 Turbo Parts

Diesel Pro Power has built its reputation as the world’s most trusted online supplier for Detroit Diesel engines and marine parts. Customers rely on us because:

• All parts are in stock and ready to ship worldwide

• Fast delivery with real-time tracking and secure packaging

• Expert support staff trained exclusively in Detroit Diesel systems

• Detailed product diagrams and installation guides available online

• Quality assurance backed by over 40,000 satisfied customers globally

From the main turbocharger assembly to the smallest sealing washer, every component is rigorously tested to ensure compatibility and performance.

Whether you’re replacing a worn turbo, performing a complete rebuild, or upgrading your Detroit Diesel 6-71 marine engine, Diesel Pro Power delivers OEM-grade reliability, fast service, and peace of mind.