What is the specs of the Toyota 3L diesel engine?

The Toyota 3L is a 3.0-liter diesel engine family that Toyota used in a range of trucks, vans, and utility vehicles from the late 1980s through the 1990s. It spans naturally aspirated and turbocharged variants, with different markets sometimes specifying slightly different tuning and emissions equipment. This article outlines the core specs and how they differ by variant, noting that exact figures can vary by model year and regional configuration.

In short, the 3L is a 3.0-liter inline-four diesel that appeared in several forms (NA, turbocharged, and intercooled variants) to suit different vehicles and regulations. Exact horsepower and torque figures depend on the exact version and market, but all variants share the same basic displacement and compact 4-cylinder diesel design.

Overview of the 3L engine family

The 3L family was designed for durability and broad utility in Toyota’s commercial and passenger lineups. It typically featured a cast-iron block and a diesel-driven fuel system, with turbocharging introduced on higher-performance variants to boost output and driveability in heavier vehicles. The engine was commonly found in models such as light- and mid-duty pickups, vans, and some SUV/utility configurations, where a robust diesel was valued for low-end torque and long service life.

Variants and specifications

3L — naturally aspirated (NA) variant

Key characteristics of the naturally aspirated version are outlined in the list below. This variant emphasizes reliability and steady torque delivery without boost from a turbocharger. The exact numbers can vary by market and model year, but the NA 3L maintains the core 3.0-liter displacement across applications.

• Displacement: 2,980 cc (3.0 L)


• Configuration: Inline-4 diesel


• Block material: Cast iron


• Fuel system: Indirect injection (precombustion chamber) with mechanical fuel pump


• Turbocharger: Not present (naturally aspirated)


• Intercooler: None (NA version)


• Compression ratio: Approximately in the high-teens to low-20s:1 range (typical for IDI diesels of the era)


• Market variations: Tuning and emissions equipment varied by region

The above points reflect the general NA configuration used in several 3L applications, highlighting its simplicity and durability. In many markets, output figures for the NA variant were modest compared with turbocharged cousins, prioritizing reliability and fuel efficiency in commercial use.

3L-T — turbocharged variant

The turbocharged version introduced boost to improve power and torque for work-minded applications such as 4x4 pickups and heavy vans. It often featured a single turbocharger and improved airflow, with some variants using intercooling to optimize efficiency and power delivery. Exact figures depend on market and year.

• Displacement: 2,980 cc (3.0 L)


• Configuration: Inline-4 diesel


• Turbocharger: Yes (single turbocharger common)


• Intercooler: Often present in later or higher-spec variants


• Fuel system: Mechanical or early electronic control (varies by market)


• Compression ratio: Lower than NA version (to suit turbo operation)


• Output range: Higher than NA variant; exact horsepower and torque depend on year and market

Turbo variants provide a significant step up in mid-range torque, improving driveability in heavier loads and off-road conditions. The inclusion of an intercooler in many versions helps manage intake temperatures for more consistent performance.

3L-TE — turbocharged, intercooled (engine with electronic control)

The 3L-TE designation typically denotes a turbocharged, intercooled variant with more modern fuel-management control for improved efficiency and emissions compliance in later-era applications. This version is commonly associated with updates that aligned with evolving market regulations and vehicle requirements.

• Displacement: 2,980 cc (3.0 L)


• Configuration: Inline-4 diesel


• Turbocharger: Yes (often a single turbo)


• Intercooler: Yes (intercooled for improved efficiency and power)


• Fuel system: Electronic control (more modern injection management)


• Compression ratio: Optimized for turbo/intercooler operation


• Output range: Higher than earlier turbo variants; exact figures vary by year and market

3L-TE variants typically deliver stronger low- and mid-range torque with better throttle response and compliance with stricter emission standards, making them suitable for newer trucks and vans that required more robust performance without increasing engine size.

Common applications and compatibility

Throughout its life, the 3L family powered a wide spectrum of Toyota models, including light-to-medium-duty pickups, cargo vans, and some sport/utilitarian SUVs in various markets. As with other engine families, the exact specification mix—turbo presence, intercooler, injection control, and emissions devices—was tailored to regional regulations and vehicle roles.

When seeking precise numbers for a specific vehicle, it is best to consult the factory service manual or a model-year-specific specification sheet, since the 3L family spanned multiple markets and updates over its production run.

Summary

The Toyota 3L diesel engine family centers on a durable 3.0-liter inline-4 platform offered in natural-aspirated and turbocharged forms, with later variants frequently incorporating intercooling and electronic fuel-management. While the core displacement and configuration remained constant, output figures and supporting systems varied by year, market, and vehicle application. For exact specifications, refer to model-year documents or Toyota’s official technical resources for the specific vehicle you’re examining.

In short: the 3L is a versatile 3.0 L diesel used across Toyota commercial and passenger models, with NA and turbocharged variants delivering different performance profiles to suit regional needs. For precise numbers, identify the exact variant and year of the engine in question.

Summary: The 3L diesel family is defined by its 3.0 L inline-4 layout, with NA and turbocharged variants (including intercooled forms) that were deployed across a range of Toyota vehicles. Exact horsepower, torque, and emission equipment depend on market and model year, so consult the specific service manuals or official specifications for precise figures.

Is the Toyota 3 Litre turbo diesel engine any good?

The Toyota 1KD-FTV engine is a trusted performer, renowned for its ability to deliver a balance of performance and durability across diverse terrains. Whether cruising through city streets or tackling challenging off-road trails, this 3.0-litre turbo-diesel engine powers some of Toyota's most iconic models.

Is the 3.0 V6 turbo diesel a good engine?

Reviews of the 3.0L 6-cylinder turbo diesel engine (often the GM Duramax) highlight its excellent fuel efficiency and strong low-end torque for towing and everyday driving. However, some potential issues include emissions system problems and leaks, which may require significant labor to repair.
 
This video provides an in-depth review of the 3.0L Duramax diesel engine, discussing its performance, fuel economy, and potential issues: 58sGetty's GarageYouTube · May 14, 2025
Pros

• Excellent fuel economy: This is a major advantage, with some reviews noting figures well above 252525 MPG even while towing, and higher MPG in city and highway driving compared to comparable gasoline engines. 
• Strong torque: The engine provides significant low-end torque, making it responsive for towing and accelerating from a stop. 
• Smooth and quiet: Many reviews describe the engine as smooth and quiet once underway, especially compared to larger diesel engines. 
• Good for daily use: The combination of efficiency, quiet operation, and smooth power delivery makes it suitable for daily driving and "tweener" situations for those who need a light-duty truck but want diesel capability. 

Cons

• Emissions system complexity: Modern diesel engines have complex emissions systems (EGR, DPF, SCR) that can lead to potential issues and error codes. 
• Potential for oil leaks: Both older (LM2) and newer (LZ0) versions have been noted to have potential oil leaks from spots like the rear main seal and oil pan. 
• Labor-intensive repairs: Several key components, like the oil pump belt and timing chain, are located at the back of the engine, making replacement extremely labor-intensive and costly, potentially requiring transmission or even cab removal. 
• Oil consumption concerns: Some owners report unacceptable oil consumption, although GM states its acceptable rate is higher for towing and personal use. 
• Lower heavy-duty capacity: While capable, it is not ideal for heavy-duty work like frequently pulling large gooseneck trailers, where larger engines may be more suitable. 

You can watch this video to see the 3.0L Duramax engine in action while towing a heavy trailer: 1mGetty's GarageYouTube · Apr 27, 2025

What is the specs of the Toyota 3.0 L engine?

3VZ-E. The 3VZ-E is a 3.0 L (2,958 cc) version, produced from 1987 to 1995. Bore remains at 87.5 mm (3.44 in) but stroke is pushed to 82 mm (3.23 in). Power outputs ranged from 108–112 kW (145–150 hp; 147–152 PS) at 4800 rpm with 244 N⋅m (180 lb⋅ft) of torque at 3400 rpm.

How much horsepower does a 1KZ 3.0 Turbo Diesel have?

125/3600
Specifications

Production years	1992-2003
Power output, hp	125/3600 (1KZ-T) 130/3600 (1KZ-TE) 145/3600 (1KZ-TE)
Torque output, Nm	287/2000 (1KZ-T) 332/2000 (1KZ-TE) 343/2000 (1KZ-TE)
Cylinder block	cast iron R4
Block head	aluminum 8v