The Nissan KA24E is a 2,389 cc, inline‑four naturally aspirated petrol engine produced between 1989 and 1997. It features a cast iron block, aluminum cylinder head, and a single overhead camshaft (SOHC) valvetrain with 12 valves. This engine was designed for durability and smooth torque delivery in Nissan's trucks and performance coupes.
Fitted to models such as the 240SX (S13), Hardbody Truck (D21), and Pathfinder (WD21), the KA24E was engineered for reliable performance under load. It offered a broad torque curve suitable for towing, off-roading, and spirited driving, prioritizing low-end grunt over peak horsepower. Emissions compliance for its production period was managed through multi-point fuel injection and basic engine management.
One documented concern is premature failure of the distributor shaft bushings, which can cause ignition timing drift and misfires. This issue, noted in Nissan service documentation, is often linked to wear over time and inadequate lubrication. In 1995, Nissan revised the distributor design for improved durability in certain applications.
Production years 1989–1997 meet applicable Japanese and US emissions standards for their respective model years (Nissan Technical Bulletin NTB-91-004).
The Nissan KA24E is a 2,389 cc inline‑four naturally aspirated petrol engine engineered for trucks, SUVs, and sports coupes (1989-1997). It combines a robust cast iron block with a SOHC 12-valve head and multi-point fuel injection to deliver smooth, reliable power. Designed to meet emissions standards of its era, it prioritizes torque and longevity over high-revving performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,389 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 12‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 89.0 mm × 96.0 mm | |
| Power output | 98–105 kW (133–143 PS) | |
| Torque | 206–210 Nm @ 2,800 rpm | |
| Fuel system | Multi-point fuel injection (MPFI) | |
| Emissions standard | US Tier 0 / Japanese 1990s standards | |
| Compression ratio | 8.6:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven camshaft | |
| Oil type | SAE 10W-30 (API SG/CC) | |
| Dry weight | 185 kg |
The 12-valve SOHC design provides strong low-end torque ideal for trucks and spirited driving but requires periodic distributor inspection to prevent timing issues. Using the specified SAE 10W-30 oil is recommended for optimal engine protection. The timing chain is generally durable but should be inspected for noise after 200,000 km. The MPFI system demands clean fuel; using a quality fuel filter is advised. The 1995 distributor revision improved reliability; pre-1995 models may benefit from the updated unit.
Oil Specs: Requires SAE 10W-30 meeting API SG/CC specification (Nissan Owner's Manual). Modern API SN/SP equivalents are suitable.
Emissions: Meets US Tier 0 and Japanese emissions standards applicable to 1989-1997 model years (Nissan Technical Bulletin NTB-91-004).
Power Ratings: Measured under SAE J1349 standards. Output varies slightly by model application and market (Nissan Group PT-1993).
Nissan Service Manual (SM-KA24E)
Nissan EPC Documentation (KA24E-001)
Nissan Technical Bulletin (NTB-91-004)
Nissan Owner's Manuals (240SX S13, Hardbody D21)
The Nissan KA24E was used across Nissan's S13, D21, and WD21 platforms with longitudinal mounting. This engine received platform-specific adaptations-exhaust manifold routing for the 240SX and reinforced mounts for the Hardbody-creating minor interchange considerations. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat boss on the front of the cylinder block, near the alternator (Nissan SM-KA24E). The 8th digit of the VIN for North American models is often 'K' for KA-series engines. Visually, it can be identified by its single cam cover and intake manifold with individual fuel injectors. Critical differentiation from the KA24DE: The KA24E uses a SOHC 12-valve head, while the KA24DE has a DOHC 24-valve head; cylinder heads and related components are not interchangeable.
The KA24E's primary reliability risk is distributor shaft bushing wear, with elevated incidence in high-mileage examples. Nissan service data indicates distributor-related ignition complaints are common, while owner reports frequently cite coolant leaks. Vehicles used for towing or in hot climates make cooling system maintenance critical.
Analysis derived from Nissan technical bulletins (1989-1997) and owner workshop manual data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN KA24E.
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