Parts for Detroit Diesel 371 Non-Turbo - (2 Valve Head Type) - Crankshaft Section

Why Buy Your Detroit Diesel 3-71 Non-Turbo (2-Valve) Crankshaft & Related Components from Diesel Pro Power

The Detroit Diesel 3-71 non-turbo (2-valve) engine is a classic in the world of two-stroke diesel power — known for its simplicity, durability, and dependable operation across a wide range of industrial and marine applications. Whether driving a generator, powering a vessel, or operating industrial machinery, this compact inline three-cylinder engine relies on one crucial internal component: the crankshaft. The crankshaft is the mechanical backbone of the 3-71, converting the up-and-down motion of the pistons into rotational power that drives your equipment.

For operators, mechanics, and marine engineers rebuilding or servicing these engines, the quality of the crankshaft and related components determines how smoothly and reliably the 3-71 performs. That’s why thousands of professionals worldwide trust Diesel Pro Power — the world’s best website for marine diesel engine parts — for premium aftermarket Detroit Diesel 3-71 crankshafts and related components built for long-lasting performance and exact OEM fit.

Premium Aftermarket Crankshafts Designed for OEM Precision

Every Detroit Diesel 3-71 non-turbo (2-valve) crankshaft available at Diesel Pro Power is manufactured to the highest standards of precision and strength. Each unit is made from forged steel and is precision-ground to exact Detroit Diesel OEM specifications. The journals, counterweights, and oil passages are machined with tight tolerances to ensure consistent lubrication, perfect alignment, and balanced rotation — key to maintaining steady performance in a 2-valve engine configuration.

These premium aftermarket crankshafts are built for durability and smooth operation in naturally aspirated (non-turbocharged) setups, where consistent torque and steady RPM output are critical. Diesel Pro Power’s replacements restore factory-level smoothness and power delivery, extending the operational life of classic Detroit Diesel 3-71 engines still in service today.

Complete Range of Crankshaft-Related Components

To complement every crankshaft, Diesel Pro Power offers all the supporting components necessary for a proper rebuild — ensuring long-term reliability and compatibility across your entire engine assembly. Available components include:

• Main Bearings – Manufactured using tri-metal layering for superior load-bearing capacity and reduced friction.

• Connecting Rod Bearings – Precision-fit replacements that maintain proper oil clearance and prevent premature wear.

• Thrust Washers – Designed to control end play and minimize crankshaft axial movement, preserving bearing surfaces.

• Front and Rear Seals – Heavy-duty seals prevent oil leakage and maintain crankcase pressure for optimal lubrication.

• Crankshaft Bolts and Keys – High-tensile fasteners ensure secure assembly and balanced rotation.

• Vibration Dampers – Balanced and tested to reduce engine vibration and extend component life.

Purchasing all your crankshaft-related parts from Diesel Pro Power guarantees that every component is designed to fit together perfectly — reducing the risk of mismatched tolerances and ensuring that your rebuild performs like new.

Engineered for Marine and Industrial Dependability

The 3-71 non-turbo 2-valve engine remains a mainstay in applications that demand reliable, low-maintenance power — from small marine vessels and dredging equipment to stationary industrial generators. These engines often operate for thousands of hours under constant load, making component quality critical. Diesel Pro Power’s crankshafts are specifically engineered to deliver the balance, strength, and endurance required for these continuous-duty environments.

Each crankshaft is carefully balanced for the naturally aspirated configuration, ensuring smooth, vibration-free operation that protects bearings, connecting rods, and other moving parts from unnecessary wear. The result is a stronger, quieter, and longer-lasting rebuild that maintains the Detroit Diesel engine’s legendary reputation for durability.

Global Shipping Network to 180 Countries

With a logistics system built for global reach, Diesel Pro Power delivers parts quickly and securely to customers in over 180 countries. Each crankshaft and component is packaged with care to prevent damage during shipping, including surface protection against corrosion. Whether you’re operating from a marine dock, industrial site, or remote power facility, Diesel Pro Power ensures your order arrives safely and on time — helping you minimize downtime and get your equipment back to work.

The World’s Best Website for Detroit Diesel Parts

Diesel Pro Power has earned recognition as the world’s best online source for Detroit Diesel engine parts, thanks to its user-friendly design, accurate listings, and dedicated customer support. Every 3-71 non-turbo crankshaft and component page features detailed specifications, compatibility data, and clear descriptions that make ordering simple and worry-free. With a secure checkout process, transparent shipping options, and multilingual support, Diesel Pro Power provides the most reliable and efficient way to source your Detroit Diesel engine parts.

Trusted by Over 40,000 Satisfied Customers Worldwide

With a global customer base of more than 40,000 satisfied clients, Diesel Pro Power has become synonymous with reliability, expertise, and world-class service. From ship engineers to industrial maintenance teams, customers return time and again because Diesel Pro delivers exactly what professionals need — premium aftermarket parts, dependable logistics, and knowledgeable technical support that ensures every rebuild or repair is successful.

Why Professionals Choose Diesel Pro Power for Detroit Diesel 3-71 Non-Turbo (2-Valve) Crankshaft Components

• Premium Aftermarket Quality: Precision-forged and balanced crankshafts built to OEM standards.

• Perfect OEM Fit: Direct-fit design for Detroit Diesel 3-71 non-turbo (2-valve) engines — no modifications required.

• Complete Rebuild Support: Bearings, seals, washers, bolts, and dampers available for a full crankshaft assembly.

• Expert Technical Assistance: Diesel specialists ready to confirm compatibility and provide professional guidance.

• Marine and Industrial Grade: Designed for heavy-duty, continuous-duty applications requiring reliability.

• Global Reach: Fast, secure shipping to 180 countries worldwide.

• Proven Reputation: Trusted by over 40,000 satisfied customers across marine and industrial markets.

• Easy Online Ordering: Clear listings, secure checkout, and exceptional customer service.

The Diesel Pro Power Advantage

When you purchase your Detroit Diesel 3-71 non-turbo (2-valve) crankshaft and related components from Diesel Pro Power, you’re choosing a partner dedicated to quality, precision, and reliability. Diesel Pro’s products are engineered specifically for Detroit Diesel engines, ensuring that your rebuild delivers the same dependable performance these engines are famous for.

From professional shipyards to small operators maintaining classic engines, Diesel Pro Power’s combination of premium aftermarket quality, expert support, and global logistics makes it the clear choice for anyone who depends on Detroit Diesel reliability.

Diesel Pro Power — the global leader for Detroit Diesel 3-71 non-turbo (2-valve) crankshafts and related components, delivering premium aftermarket quality, proven performance, and dependable worldwide support for the engines that never quit.