Parts for Detroit Diesel 6V71 Non-Turbo - Oil Pump Section

Detroit Diesel 6V71 Non-Turbo — Oil Pump & Lubrication System Parts Catalog

The Detroit Diesel 6V71 non-turbo engine depends on a high-volume lubrication system to protect its internal components, manage operating temperatures, and ensure the long life these two-stroke Detroits are famous for. Proper oil flow, filtration, and cooling are vital for the 6V71’s reliability—whether installed in a marine vessel, generator, or industrial power unit. This catalog focuses exclusively on oil pump assemblies, coolers, filters, gaskets, and related components for the 6V71 non-turbo engine, providing everything needed for a complete rebuild or maintenance overhaul.

Rebuilt Oil Pumps for Detroit Diesel 6V71 Non-Turbo

Right-Hand Rotation Oil Pump
This rebuilt oil pump is designed specifically for right-hand rotation 6V71 engines. It’s completely remanufactured using OEM-grade components, with new bushings, shafts, and end plates to restore pressure stability and oil flow. Every pump is flow-bench tested to ensure proper operation and comes with a refundable core deposit. Ideal for engines showing low pressure, internal leakage, or scoring within the pump housing.

Left-Hand Rotation Oil Pump
For 6V71 engines configured with left-hand rotation, this rebuilt pump provides the same dependable performance and durability. Each unit is reconditioned to factory standards and fully inspected for correct gear clearance and rotor efficiency. Sold with a refundable core charge and ready for immediate installation.

Scavenging-Type Oil Pump
The scavenging-type oil pump supports high-duty 6V71 applications that demand improved oil circulation and return efficiency. This rebuilt version ensures consistent flow throughout the crankcase, maintaining optimal lubrication even in continuous-operation or marine environments where steady oil temperature control is critical.

Oil Pump Mounting, Covers, and Sealing Components

Oil Pump Gasket
A replacement oil pump gasket provides a reliable seal between the pump and the engine block, preventing leaks and air entry that could reduce oil pressure. Always install a new gasket whenever the pump is removed or serviced.

Oil Pump Pad Cover Gaskets
These gaskets maintain tight sealing around the pump pad cover, ensuring the 6V71’s pump housing remains oil-tight. Designed to withstand vibration and heat cycles without compression loss.

Crankshaft Front Cover Gasket
This gasket seals the front cover assembly on the 6V71. It is often replaced alongside the oil pump to prevent oil seepage around the crank gear area.

Oil Pressure Control Components

Oil Pressure Regulator Valve
A new oil pressure regulator valve restores accurate oil-pressure control by regulating bypass flow through the pump housing. Replace if oil pressure fluctuates or remains low despite proper pump performance.

Oil Pressure Regulator Spring
Over time, the regulator spring weakens due to heat and fatigue. Installing a new one restores factory pressure settings and ensures stable oil pressure across all operating temperatures.

Oil Relief Valve
The oil relief valve protects the engine from over-pressure conditions that can damage filters or gaskets. A fresh relief valve guarantees smooth operation and balanced oil distribution.

Oil Pump Shims (.005 – .020)
Precision shims allow technicians to set the oil pump’s end clearance accurately. Adjusting pump clearance is key to maintaining the correct flow rate and pressure for 6V71 engines operating in both warm and cool climates.

Oil Filtration Components

Oil Filter Base — Cartridge Type
The original cartridge-style oil filter base is built for the 6V71’s standard filtration layout. If your base shows corrosion or thread damage, replacing it ensures a secure seal and reliable oil pressure readings.

Oil Filter Adapter — Cartridge to Spin-On Conversion
Upgrade your 6V71 to a modern spin-on filter setup using this precision adapter. It replaces the old cartridge system for faster, cleaner maintenance and improved oil-change efficiency.

Oil Filter Adapter Gaskets
Always replace the filter adapter gasket when changing the base or upgrading to spin-on filtration. This gasket maintains a secure oil seal between the housing and the adapter.

Spin-On Oil Filter
This premium spin-on oil filter is compatible with 6V71 engines using the conversion adapter. Designed to capture fine contaminants while maintaining strong oil flow, it offers reliable filtration under high operating loads.

Cartridge Oil Filter
For 6V71 engines retaining the original design, this premium cartridge-type filter provides OEM-equivalent performance and long service life. Pair with new gaskets and a clean filter base for best results.

Oil Filter Removal Wrench
A durable filter wrench designed for Detroit Diesel engines. It allows safe removal of large spin-on filters without deformation or damage.

Oil Filter Gaskets & Copper Washers
Includes sealing gaskets and copper washers used throughout the 6V71 oiling system to ensure leak-free service connections. These should be replaced whenever filters or fittings are serviced.

Oil Cooling Components

Oil Coolers — 13, 16, 18, and 24 Plate Options
The 6V71 uses plate-style oil coolers to manage operating temperature. Choose the core size based on duty level and environment:

• 13-plate: Standard cooling capacity for light or intermittent duty.

• 16-plate: Ideal for moderate workloads and warm-weather operation.

• 18-plate: Enhanced cooling for extended engine run times.

• 24-plate: Maximum cooling for heavy-duty or continuous-use marine service.

Oil Cooler Gaskets — Housing, Cover, and Adapter Types
Each cooler service should include fresh gaskets. These maintain separation between oil and coolant passages, ensuring no cross-contamination and consistent heat transfer.

Oil Cooler Adapter Gasket
Designed for single-cooler configurations on the 6V71, this gasket ensures precise oil flow alignment and pressure retention.

Oil Cooler Housing and Cover Gaskets
Replace these gaskets when reassembling the cooler housing or replacing the core. They prevent external leaks and maintain proper cooler sealing during heat cycles.

Water-Side Sealing Components

Water Manifold to Oil Cooler Seals
The water manifold seals connect coolant passages between the engine and cooler housing. Fresh seals prevent leaks and protect the oil system from coolant intrusion.

Oil Cooler Water Inlet Seal
A specialized seal that ensures coolant enters the cooler housing correctly without external seepage. Replace during every cooler service to maintain proper sealing pressure.

Oil Cooler Water Inlet Gasket
For systems using gasketed joints instead of molded seals, this gasket restores the correct compression fit between the cooler and manifold surfaces.

Dipsticks, Tubes, Guides & Fill Caps

Oil Filler Cap (2-Inch)
A replacement oil filler cap for the 6V71’s head cover. It keeps contaminants out and maintains proper crankcase ventilation.

Dipsticks
Available in multiple lengths, including a 44.25-inch version for deeper oil pans and a 27-inch version for compact installations. Each dipstick is calibrated to Detroit Diesel specifications to ensure accurate oil-level readings.

Dipstick Tube & Guide
The tube channels the dipstick to the oil pan, while the guide ensures correct alignment. Replacing both eliminates leaks and prevents false level readings caused by tube distortion.

Oil Pressure Switches

5, 10, 20, and 27 PSI Make/Break Switches
These oil pressure switches are designed for 6V71 engines equipped with safety shutdown or alarm systems. They trigger alerts when oil pressure falls below the selected threshold, helping operators protect their engine before damage occurs.

Supporting Accessories

Oil Pan Gasket
A new oil pan gasket ensures a tight, leak-free seal between the block and the oil pan, keeping the crankcase clean and properly pressurized.

Detroit Diesel Green Engine Paint
Finish your rebuild with authentic Detroit Diesel Green paint, providing corrosion resistance and the classic factory appearance.

Mechanical & Electric Gauges
Replace or add gauges to monitor oil pressure and temperature on your 6V71. Available in 12- and 24-volt configurations to match your electrical system.

Why Buy 6V71 Oil Pump and Lubrication Parts from Diesel Pro Power

Diesel Pro Power is the leading global supplier of genuine and premium aftermarket parts for Detroit Diesel 6V71 engines, trusted by more than 40,000 customers in over 180 countries. Every part in this catalog is carefully selected to ensure reliability, perfect fitment, and long-term performance.

Here’s why 6V71 owners and technicians choose Diesel Pro Power:

• Comprehensive Inventory: Everything for the 6V71 lubrication system—oil pumps, coolers, filters, gaskets, and hardware—in one place.

• Superior Quality: All rebuilt pumps and components meet or exceed OEM standards for pressure stability and durability.

• Fast Global Shipping: Prompt delivery ensures minimal downtime, whether you’re docked in a port or maintaining equipment in the field.

• Expert Guidance: Our knowledgeable team can confirm part compatibility for your specific 6V71 configuration.

• Proven Reputation: Thousands of professional operators rely on Diesel Pro Power to keep their Detroit Diesels running strong.

From complete rebuilt oil pumps to small but vital components like gaskets, seals, and shims, Diesel Pro Power has everything you need to restore and maintain your Detroit Diesel 6V71 non-turbo lubrication system for peak performance and long service life.