Parts for Detroit Diesel 271 for Canada - Oil Pump Section

Detroit Diesel 2-71 Engine – Oil Pump Section

The Detroit Diesel 2-71 engine, part of the legendary Series 71 family, has long been recognized for its simplicity, durability, and dependability across industrial, marine, and generator applications. Known for its compact two-cylinder design and efficient two-stroke operation, the 2-71 delivers a smooth balance between power and economy. To maintain that performance, proper lubrication and oil circulation are essential—and that’s where the oil system components featured here come in.

This comprehensive catalog section highlights premium-quality replacement parts for the Detroit Diesel 2-71 oil system, including oil pumps, coolers, filters, gaskets, dipsticks, and pressure switches. Each product in this collection is engineered for precise fit and long-lasting reliability, ensuring that your classic Detroit Diesel engine performs exactly as intended.

Understanding the Role of the Oil System in the Detroit Diesel 2-71

The lubrication system of the Detroit Diesel 2-71 is responsible for maintaining oil flow and pressure throughout the engine’s internal components—crankshaft bearings, connecting rods, pistons, and camshafts. Because the 2-71 is a two-stroke diesel engine, lubrication plays a dual role: it not only reduces friction and wear but also supports the scavenging and cooling of internal parts.

The oil pump drives this circulation, drawing oil from the pan and sending it through filters, galleries, and coolers. Any disruption in oil pressure or flow can lead to catastrophic damage. That’s why Diesel Pro Power provides premium rebuilt pumps, original-style gaskets, and restoration kits designed specifically for the 2-71 configuration.

Each component listed below contributes to keeping your lubrication system leak-free, efficient, and durable—whether you’re restoring a vintage generator, repowering a tugboat, or maintaining a stationary compressor.

Detroit Diesel 2-71 Oil Pump and Related Components

Rebuilt Oil Pump – Right-Hand Rotation

The Detroit Diesel 2-71 uses a right-hand rotation oil pump, available as a precision-rebuilt assembly. Every rebuilt pump offered by Diesel Pro Power undergoes full disassembly, cleaning, inspection, and reassembly with new seals, bushings, and gaskets. The gears are checked for backlash and wear, and oil pressure regulators are calibrated to factory specifications.

This pump delivers consistent oil pressure at all operating speeds and temperatures. Designed to match the original Detroit Diesel casting, it fits directly in place without modification, ensuring reliable operation from the moment of installation.

• Rebuilt and tested for pressure consistency

• Guaranteed compatibility with the Detroit Diesel 2-71 engine

• Sold with a refundable core deposit

• Backed by Diesel Pro Power’s quality assurance guarantee

For operators managing older marine propulsion systems, generators, or industrial compressors powered by the 2-71, this rebuilt oil pump restores the heart of your lubrication circuit with confidence and durability.

Oil Pump Repair Kit

For those performing in-house rebuilds, Diesel Pro Power also offers a complete oil pump repair kit for the Detroit Diesel 2-71. This kit includes replacement seals, thrust washers, drive keys, and gaskets—all precision manufactured to match OEM dimensions.

The repair kit allows experienced mechanics to service existing pumps without needing full replacements. Each part is engineered from high-grade materials capable of withstanding the high-temperature, high-pressure environment typical of Series 71 engines.

Using this kit can extend the life of your oil pump, restore optimal oil pressure, and reduce downtime in demanding operating environments.

Gaskets for the Oil Cooler and Oil Pan

Maintaining proper oil containment is crucial to prevent leaks and maintain system pressure. The Detroit Diesel 2-71 employs several gaskets in its lubrication system—especially around the oil cooler housing and oil pan.

Oil Cooler Gaskets

Two versions of oil cooler gaskets are commonly used on the 2-71 engine. Both are precision-cut to withstand heat, vibration, and the continuous pressure of circulating oil. A failed oil cooler gasket can lead to internal leaks that mix oil and coolant, which can damage bearings and liners.

Diesel Pro Power’s gaskets are designed to deliver tight, reliable seals using composite materials resistant to degradation and oil breakdown. Whether you’re servicing a 2-71 in a marine environment or stationary power application, these gaskets ensure that your oil cooler operates leak-free.

Oil Pan Gasket

The oil pan gasket seals the bottom cover of the crankcase, preventing oil seepage along the mating surfaces. Diesel Pro Power’s replacement gasket is engineered from high-grade, oil-resistant material that withstands expansion and contraction cycles caused by temperature changes.

Its precise fit ensures an easy installation without trimming or sealant overuse, keeping your oil containment system clean and effective.

Oil Coolers – 4-Plate Variants

The oil cooler is one of the most critical components in the 2-71’s lubrication system. Diesel Pro Power offers 4-plate oil coolers designed to regulate oil temperature and prevent overheating.

Oil coolers with fewer plates are commonly used in compact engines like the 2-71, where moderate oil flow and compact design are key. These plate-style coolers transfer heat from the oil to the engine coolant, ensuring that the oil maintains its viscosity and protective properties.

Features include:

• Corrosion-resistant construction for marine or industrial applications

• Direct-fit compatibility with Detroit Diesel 2-71 configurations

• Efficient thermal exchange to stabilize operating temperature

• Tested under pressure to ensure leak-free performance

Operators often replace the oil cooler when evidence of oil contamination or reduced heat dissipation appears. Diesel Pro Power’s 4-plate coolers restore that factory balance between temperature control and lubrication efficiency.

Oil Filters – Cartridge Type

To protect bearings and moving components, oil filtration is essential. The cartridge-style oil filter for the Detroit Diesel 2-71 captures contaminants such as soot, carbon, and metallic debris before they can circulate through the lubrication system.

This filter is engineered to maintain a consistent flow rate while trapping microscopic particles, ensuring that the oil pump and internal passages remain clean. A clogged or low-quality filter can cause oil starvation, resulting in bearing failure.

Diesel Pro Power’s cartridge filters are selected for their:

• Compatibility with the Detroit Diesel 2-71 and other Series 71 engines

• High dirt-holding capacity for extended service life

• Easy installation and secure housing fit

• Resistance to collapse under high-pressure operation

Routine replacement of the oil filter is recommended during every oil change or after extended operating hours, depending on duty cycle.

Dipsticks, Tubes, and Guides

Accurate oil level measurement is essential for maintaining proper lubrication. Diesel Pro Power offers dipsticks, tubes, and guides compatible with the Detroit Diesel 2-71 engine.

Dipsticks

Two dipstick lengths are available:

• 61-inch version for standard configurations

• 72-inch version for applications with extended oil pans or remote fill access

Each dipstick features durable construction and clearly marked level indicators, ensuring accurate readings even in high-vibration environments.

Dipstick Tube

The dipstick tube provides a secure housing for the dipstick, ensuring that readings are consistent and oil does not escape during operation. The tube’s corrosion-resistant finish makes it ideal for marine and outdoor industrial environments.

Dipstick Guide

The dipstick guide ensures proper insertion alignment and protects the tube from bending or vibration-related wear. It fits 1½-inch assemblies and can be used across multiple Detroit Diesel engine families.

Together, these components provide a reliable, leak-free method to monitor engine oil levels accurately.

Copper Washers and Sealing Components

To maintain pressure integrity throughout the lubrication system, the Detroit Diesel 2-71 employs copper washers at critical junctions—such as oil line fittings and drain plugs. These washers create tight, reusable seals and prevent leaks even under fluctuating pressure and temperature.

Diesel Pro Power’s copper washers are manufactured to the correct inner and outer diameters (⅜" x 9/16"), providing a perfect match for OEM specifications. Each washer can be annealed and reused if desired, but replacement is recommended during major service intervals to ensure a secure seal.

Fuel and Oil Pressure Switches

Monitoring oil pressure is vital for safe engine operation. Diesel Pro Power supplies a range of pressure switches for fuel and oil systems in the Detroit Diesel 2-71, available in multiple PSI ratings to suit different alarm and monitoring configurations.

Options include:

• 5 PSI Make/Break Switch

• 10 PSI Make/Break Switch

• 20 PSI Make/Break Switch

• 27 PSI Make/Break Switch

Each switch operates using a make/break circuit—activating or deactivating an electrical signal when pressure reaches a preset level. This function can be used to trigger alarms, warning lights, or shutdown systems to protect the engine from low oil pressure conditions.

Constructed with brass housings and durable diaphragms, these switches offer precision response and long-term reliability in demanding operating environments.

Oil Pressure Gauges and Monitoring

To complement the pressure switches, Diesel Pro Power also provides mechanical and electrical gauges suitable for Detroit Diesel 2-71 installations.

Mechanical Gauges

Mechanical gauges deliver direct, analog readings without electrical components, making them ideal for classic engine panels and non-electronic systems. They can be equipped with alarms for additional protection.

Electrical Gauges

Electrical gauges—available in both 12-volt and 24-volt configurations—use senders connected to the pressure circuit, allowing remote monitoring from the control panel. They are essential in modernized installations or enclosed engine rooms.

Why Choose Diesel Pro Power for Detroit Diesel 2-71 Oil System Parts

With over 40,000 satisfied customers worldwide, Diesel Pro Power has become the most trusted source for Detroit Diesel parts online. Whether you’re maintaining a commercial vessel, a backup generator, or a vintage industrial engine, our commitment to precision and reliability ensures you’ll receive the right parts every time.

Key advantages include:

• Expert-verified compatibility for every Detroit Diesel 2-71 component

• Fast worldwide shipping and real-time inventory tracking

• Rebuilt parts backed by warranty and quality inspection

• Dedicated customer support available for technical assistance

• Secure online checkout and same-day processing on most orders

Every gasket, pump, and cooler in this catalog is chosen for its ability to maintain performance, prevent failures, and extend the life of your 2-71 engine.

Maintenance Tips for Optimal Oil System Performance

• Change oil and filter regularly: Old oil accumulates soot and acid that can damage internal surfaces.

• Inspect oil pump pressure: A sudden drop can indicate internal leakage, clogged filters, or pump wear.

• Replace gaskets during every major service: Reusing old gaskets risks leaks and contamination.

• Check oil cooler for cross-contamination: Any mixing of oil and coolant is a serious issue requiring immediate attention.

• Use proper torque specifications: Over-tightening fittings can distort sealing surfaces.

Regular attention to these details ensures the 2-71 continues to perform with the legendary dependability Detroit Diesel is known for.