Nissan D21 Engine Specs, Configuration, and Maintenance Guide

Nissan D21 Engine Specifications

The Nissan D21, also known as the Nissan Hardbody, is a compact pickup truck that was produced from 1986 to 1997. It is known for its durability and versatility, making it a popular choice among truck enthusiasts. The D21 was equipped with several engine options throughout its production run, each offering a unique set of specifications.

Engine Options Overview

The Nissan D21 offered a variety of engines, primarily focusing on four-cylinder and V6 configurations. Below is a detailed chart of the engine specifications for the D21:

Engine Configuration

The engine configuration of the Nissan D21 varies depending on the specific engine option chosen. The following sections detail the configurations of the most common engines found in the D21.

KA24E Engine Configuration

The KA24E is a 2.4-liter inline-four engine that features a single overhead camshaft (SOHC) design. It is known for its reliability and efficiency, making it a popular choice for the D21.

– Bore x Stroke: 89 mm x 96 mm
– Compression Ratio: 9.5:1
– Fuel Type: Regular unleaded gasoline
– Cooling System: Water-cooled

KA24DE Engine Configuration

The KA24DE is a more powerful variant of the KA24E, featuring a dual overhead camshaft (DOHC) design. This engine provides improved performance and efficiency.

– Bore x Stroke: 89 mm x 96 mm
– Compression Ratio: 9.5:1
– Fuel Type: Regular unleaded gasoline
– Cooling System: Water-cooled

VG30E Engine Configuration

The VG30E is a 3.0-liter V6 engine that offers a balance of power and torque, making it suitable for heavier loads and towing.

– Bore x Stroke: 89 mm x 80 mm
– Compression Ratio: 8.6:1
– Fuel Type: Regular unleaded gasoline
– Cooling System: Water-cooled

VG30DE Engine Configuration

The VG30DE is a more advanced version of the VG30E, featuring a DOHC design for enhanced performance.

– Bore x Stroke: 89 mm x 80 mm
– Compression Ratio: 9.5:1
– Fuel Type: Regular unleaded gasoline
– Cooling System: Water-cooled

Engine Oil Specifications

Proper engine oil is crucial for the longevity and performance of the Nissan D21’s engines. The following specifications outline the recommended engine oil types and service intervals.

Recommended Engine Oil

For the Nissan D21, the following oil specifications are recommended:

– Oil Type: SAE 10W-30 or 10W-40
– Oil Capacity (with filter):
– KA24E: 4.5 quarts (4.3 liters)
– KA24DE: 4.5 quarts (4.3 liters)
– VG30E: 5.0 quarts (4.7 liters)
– VG30DE: 5.0 quarts (4.7 liters)

Oil Change Intervals

Regular oil changes are essential for maintaining engine health. The recommended intervals for oil changes are as follows:

– Every 3,000 to 5,000 miles (4,800 to 8,000 kilometers) for normal driving conditions.
– Every 2,500 miles (4,000 kilometers) for severe driving conditions, such as towing or frequent short trips.

Service Intervals

In addition to regular oil changes, other service intervals should be adhered to for optimal performance and longevity of the Nissan D21.

Routine Maintenance Schedule

The following maintenance tasks should be performed at regular intervals:

– Air Filter Replacement: Every 15,000 miles (24,000 kilometers)
– Fuel Filter Replacement: Every 30,000 miles (48,000 kilometers)
– Spark Plug Replacement: Every 30,000 miles (48,000 kilometers)
– Timing Belt Replacement: Every 60,000 miles (96,000 kilometers) for KA24DE and VG30DE engines
– Transmission Fluid Change: Every 30,000 miles (48,000 kilometers)

Inspection and Checks

Regular inspections are vital to ensure the vehicle remains in good condition. Key areas to check include:

– Brakes: Inspect pads and rotors for wear.
– Tires: Check for tread depth and proper inflation.
– Battery: Inspect terminals and check for corrosion.
– Suspension: Look for signs of wear or damage.

Conclusion

The Nissan D21 is a robust and reliable pickup truck with a variety of engine options that cater to different needs. Understanding the engine specifications, configurations, oil requirements, and service intervals is essential for maintaining the performance and longevity of this vehicle. Regular maintenance and adherence to recommended service intervals will ensure that the Nissan D21 continues to perform well for years to come.