Parts for Detroit Diesel 371 Non-Turbo - (4 Valve Head Type) for Canada - Crankshaft Section

Why Buy Your Detroit Diesel 3-71 Non-Turbo (4-Valve) Crankshaft & Related Components from Diesel Pro Power

The Detroit Diesel 3-71 non-turbo (4-valve) engine represents one of the most balanced and efficient designs in the classic Series 71 family. Known for its improved breathing efficiency, better combustion, and enhanced torque over the 2-valve version, the 4-valve 3-71 engine is trusted across marine, industrial, and power generation sectors for its endurance and simplicity. At the core of this durable two-stroke engine lies the crankshaft — the precision component that converts piston movement into rotational energy.

Maintaining proper engine balance, smooth operation, and power output depends heavily on the condition and quality of this component. That’s why professional mechanics, ship engineers, and industrial operators around the world trust Diesel Pro Power, the world’s best website for marine diesel engine parts, to supply premium aftermarket crankshafts and related components for the Detroit Diesel 3-71 non-turbo (4-valve) engine.

Premium Aftermarket Crankshafts Built to Exact Detroit Diesel Standards

Each Detroit Diesel 3-71 non-turbo (4-valve) crankshaft available from Diesel Pro Power is engineered to meet or exceed OEM specifications. These crankshafts are precision-forged from high-grade steel, carefully heat-treated, and balanced to ensure smooth operation under continuous-duty conditions. Every journal and counterweight is machined to tight tolerances, ensuring perfect oil flow, bearing alignment, and long-term reliability.

The 4-valve configuration of the 3-71 engine demands superior crankshaft balance and stability to handle the improved airflow and combustion efficiency that the upgraded head design provides. Diesel Pro Power’s premium aftermarket crankshafts are manufactured specifically for these requirements — offering OEM-level performance with the added assurance of modern precision machining. The result is smoother operation, reduced vibration, and extended service life.

Complete Range of Crankshaft-Related Components

To complete your rebuild or repair, Diesel Pro Power offers a comprehensive selection of related components, all designed for direct compatibility with the Detroit Diesel 3-71 non-turbo (4-valve) configuration. These parts are engineered for exact fitment and performance consistency, ensuring that every component works in harmony with your crankshaft assembly.

Available components include:

• Main Bearings – Manufactured from durable tri-metal alloys for superior load capacity and lubrication retention.

• Connecting Rod Bearings – Engineered for precise oil film clearance, preventing wear and ensuring long service life.

• Thrust Washers – Maintain crankshaft end play and protect against axial movement and block wear.

• Front and Rear Seals – Heavy-duty designs prevent oil leaks, preserving crankcase pressure and lubrication integrity.

• Crankshaft Bolts & Hardware Kits – High-tensile fasteners that ensure a secure and stable installation.

• Vibration Dampers & Keys – Precisely balanced to minimize torsional vibration and protect main bearings.

Sourcing all your crankshaft and related components from Diesel Pro Power ensures uniform quality, precise compatibility, and a smooth rebuild process from start to finish.

Designed for Marine and Industrial Endurance

The Detroit Diesel 3-71 non-turbo (4-valve) engine remains a top choice for operators who require steady, reliable power output under heavy workloads. Whether running in small tugboats, marine generators, construction machinery, or auxiliary systems, this engine is built for long-term service. Diesel Pro Power’s crankshafts and components are specifically engineered to endure these high-load, high-hour environments.

Each crankshaft is dynamically balanced for naturally aspirated (non-turbo) applications, ensuring smooth rotational movement and preventing vibration that can cause bearing wear or fatigue. When paired with Diesel Pro Power’s premium bearings and seals, the result is an exceptionally stable lower end that performs consistently in even the most demanding operating conditions.

Global Reach: Fast Delivery to 180 Countries

Diesel Pro Power supports professionals worldwide with reliable, fast shipping to over 180 countries. Every crankshaft and related component is packaged with precision protection, preventing corrosion and impact damage during transport. Marine engineers and industrial operators can rely on Diesel Pro’s logistics expertise to minimize downtime, ensuring that engines are restored to full operation quickly and efficiently.

No matter where your Detroit Diesel 3-71 engine is operating — at sea, in a remote facility, or on an industrial job site — Diesel Pro Power delivers high-quality parts directly to your door.

The World’s Best Online Source for Detroit Diesel Parts

Diesel Pro Power’s user-friendly website makes it the world’s best online destination for Detroit Diesel engine parts. Customers benefit from clear product listings, detailed specifications, and expert technical information that ensure confident ordering and accurate fitment. With secure checkout, multilingual support, and quick order processing, Diesel Pro Power simplifies the process of finding and purchasing premium-quality components for legacy Detroit Diesel engines like the 3-71 non-turbo (4-valve).

Trusted by Over 40,000 Satisfied Customers Worldwide

With a global reputation built on service and reliability, Diesel Pro Power proudly serves more than 40,000 satisfied customers across marine, industrial, and power generation sectors. Professionals return to Diesel Pro because they trust the company’s commitment to premium quality, knowledgeable support, and dependable logistics. From ship captains to fleet maintenance teams, Diesel Pro Power is recognized as the go-to source for authentic, precision-engineered Detroit Diesel parts.

Why Professionals Choose Diesel Pro Power for Detroit Diesel 3-71 Non-Turbo (4-Valve) Crankshaft Components

• Premium Aftermarket Construction: Forged steel crankshafts precisely machined to OEM Detroit Diesel standards.

• Perfect OEM Fitment: Direct-fit replacements for 3-71 non-turbo (4-valve) engines — no modifications required.

• Complete Component Range: Bearings, thrust washers, seals, dampers, and hardware kits available for full rebuilds.

• Engineered for Continuous-Duty Use: Built to handle constant RPM operation in marine and industrial applications.

• Global Delivery Network: Reliable shipping to 180 countries with protective packaging and order tracking.

• Expert Diesel Support: Access to specialists with decades of Detroit Diesel knowledge.

• Trusted Worldwide: Over 40,000 satisfied customers rely on Diesel Pro for performance and quality.

• Easy, Secure Ordering: The most user-friendly diesel parts website, with transparent service and fast fulfillment.

The Diesel Pro Power Advantage

When you choose Diesel Pro Power for your Detroit Diesel 3-71 non-turbo (4-valve) crankshaft and related components, you’re investing in more than just parts — you’re choosing a company that understands the importance of precision, dependability, and customer service. Diesel Pro provides one of the most comprehensive Detroit Diesel parts inventories online, ensuring immediate availability, expert assistance, and consistent quality for every order.

Whether you’re maintaining a working vessel, rebuilding a backup generator, or restoring classic Detroit Diesel equipment, Diesel Pro Power ensures your 3-71 engine gets the parts it deserves — reliable, durable, and built to last.

Diesel Pro Power — your trusted global source for Detroit Diesel 3-71 non-turbo (4-valve) crankshafts and components, delivering premium aftermarket performance, expert support, and worldwide service for the engines that keep industry and marine power moving.