Mazda Mazda B-Series 1998-2006 4.0L V6 Engine Engine Specifications
Mazda Mazda B-Series 1998-2006

Mazda Mazda B-Series 1998-2006 4.0L V6 Engine Specifications

Explore detailed technical specifications for the 4.0L V6 engine in the 1998-2006 Mazda B-Series. This guide covers performance metrics, maintenance tips, and compatibility for repairs and upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 4.0L V6 engine used in the 1998-2006 Mazda B-Series trucks. It is designed for mechanics, enthusiasts, and owners seeking comprehensive insights into the engine's design, performance, and maintenance. Use the search and navigation instructions to quickly locate specific details or browse through sections for a thorough understanding of the engine's features and capabilities.

How to Use

Use the search bar to enter keywords related to the engine specifications, such as 'horsepower' or 'torque'. The results will highlight relevant sections and subsections for quick access.

Scroll through the document or use the table of contents to jump to specific sections. Each section is organized into subsections with detailed technical points for easy reference.

Key Specifications

Displacement

4.0 liters

Horsepower

207 HP @ 5250 RPM

Torque

238 lb-ft @ 3000 RPM

Fuel Efficiency

15 MPG city / 20 MPG highway

Compression Ratio

9.7:1

Available Specifications

Engine Design and Configuration

This section covers the fundamental design aspects of the 4.0L V6 engine, including its layout, construction, and key components. Learn about the engine's architecture and how it contributes to performance and durability.

Engine Layout
  • 60-degree V6 configuration
  • Cast iron engine block
  • Aluminum cylinder heads
  • Overhead valve (OHV) design
  • Sequential multi-port fuel injection
  • Hydraulic lifters for reduced maintenance
Key Components
  • Forged steel crankshaft
  • Powdered metal connecting rods
  • Aluminum pistons with low-friction coatings
  • Dual overhead camshafts (DOHC)
  • Variable intake manifold for improved airflow
  • Integrated oil cooler for thermal management

Performance Specifications

Explore the performance metrics of the 4.0L V6 engine, including horsepower, torque, and fuel efficiency. This section provides insights into how the engine delivers power and handles various driving conditions.

Power Output
  • 207 horsepower @ 5250 RPM
  • 238 lb-ft of torque @ 3000 RPM
  • Redline at 6000 RPM
  • Compression ratio of 9.7:1
  • Electronic throttle control for precise power delivery
  • Optimized for towing and hauling
Fuel Efficiency
  • EPA-estimated 15 MPG city
  • EPA-estimated 20 MPG highway
  • Dual catalytic converters for emissions control
  • E85 flex-fuel capability (optional)
  • Low rolling resistance tires for improved mileage
  • Lightweight design for better fuel economy

Maintenance and Durability

This section outlines the maintenance requirements and durability features of the 4.0L V6 engine. Discover how to keep the engine running smoothly and extend its lifespan through proper care and servicing.

Maintenance Schedule
  • Oil change every 5,000 miles
  • Spark plug replacement every 30,000 miles
  • Timing belt inspection every 60,000 miles
  • Coolant flush every 100,000 miles
  • Air filter replacement every 15,000 miles
  • Fuel system cleaning every 50,000 miles
Durability Features
  • High-strength alloy materials
  • Corrosion-resistant coatings
  • Reinforced engine mounts
  • Thermal management system
  • Sealed bearings for reduced wear
  • Extended service intervals for reduced downtime

Engine Specifications

Overview

Type
V6
Configuration
60-degree V6
Displacement
4.0 liters (245 cubic inches)
Aspiration
Naturally aspirated
Fuel System
Sequential multi-port fuel injection
Location
Front longitudinal

Dimensions

Length
28.5 inches (724 mm)
Width
26.7 inches (678 mm)
Height
27.3 inches (693 mm)
Weight
450 lbs (204 kg)
Bore
3.95 inches (100.3 mm)
Stroke
3.32 inches (84.4 mm)
Compression Ratio
9.7:1
Oil Capacity
6 quarts (5.7 liters)

Materials

Block
Cast iron
Cylinder Heads
Aluminum
Pistons
Aluminum alloy
Crankshaft
Forged steel
Valvetrain
Overhead camshaft (OHC)

Features

Performance
  • 210 horsepower @ 5250 rpm
  • 240 lb-ft torque @ 3500 rpm
  • Electronic throttle control
  • Variable intake manifold
Fuel Efficiency
  • EPA-estimated 15 mpg city
  • EPA-estimated 20 mpg highway
  • Optimized fuel injectors
  • Low-friction piston rings
Cooling
  • High-capacity radiator
  • Electric cooling fan
  • Thermostatically controlled
  • Coolant temperature sensor
Ignition
  • Distributorless ignition system
  • Coil-on-plug design
  • Knock sensor
  • Electronic spark advance
Emissions
  • EGR (Exhaust Gas Recirculation)
  • Catalytic converter
  • Oxygen sensors
  • Evaporative emissions control

Safety Features

Engine Protection
  • Low oil pressure warning
  • Overheat warning system
  • Fail-safe cooling mode
Electronic Controls
  • PCM (Powertrain Control Module)
  • OBD-II diagnostics
  • Throttle position sensor

Comfort Features

Noise Reduction
  • Acoustic engine cover
  • Hydraulic engine mounts
  • Tuned intake manifold
Vibration Control
  • Balanced crankshaft
  • Dual-mass flywheel
  • Isolated fuel rail

Accessories

Belts And Pulleys
  • Serpentine belt
  • Tensioner pulley
  • Idler pulley
Filters
  • Oil filter
  • Air filter
  • Fuel filter
Sensors
  • Crankshaft position sensor
  • Camshaft position sensor
  • Coolant temperature sensor

Maintenance

Service interval
Every 5,000 miles or 6 months
Service Items
  • Oil and filter change
  • Inspect spark plugs
  • Check timing belt
  • Inspect coolant system
  • Check air filter
Maintenance Notes
Use 5W-30 synthetic oil for optimal performance

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Bumper-to-bumper
Powertrain
Miles: 60,000
Years: 5
Coverage: Engine and transmission
Emissions
Miles: 80,000
Years: 8
Coverage: Catalytic converter, sensors
Corrosion
Miles: Unlimited
Years: 5
Coverage: Perforation from rust

Production Details

Manufacturer
Mazda
Manufacturing Process
  • Casting for engine block
  • CNC machining for cylinder heads
  • Heat treatment for crankshaft
Quality Control
Dimensional Checks: Laser scanning
Pressure Testing: Cylinder leak-down test
Performance Testing: Dynamometer testing
Sustainability Practices
  • Recycled aluminum for cylinder heads
  • Low-VOC coatings
  • Energy-efficient manufacturing
Production Metrics
Units Per Year: 50,000
Defect Rate: 0.5%
Lead Time: 4 weeks

Service Information for 4.0l v6 engine Service

Maintenance and service requirements specific to this component

5,000
6
  • Change engine oil and filter
  • Inspect belts and hoses
  • Check coolant level
  • Inspect spark plugs
  • Check air filter

Use synthetic oil for better performance

30,000
36
  • Replace spark plugs
  • Inspect timing belt
  • Check fuel system
  • Inspect exhaust system
  • Test battery and charging system

Timing belt replacement recommended at 60,000 miles

60,000
72
  • Replace timing belt
  • Replace coolant
  • Inspect and replace worn belts
  • Check engine mounts
  • Perform compression test

Critical to replace timing belt to prevent engine damage

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 4.0L V6 engine compatible with other Mazda models or years?

The 4.0L V6 engine was specifically designed for the 1998-2006 Mazda B-Series trucks. While it shares some components with Ford's Cologne V6 engines, direct compatibility with other Mazda models is limited. Always verify engine codes and mounting points before attempting cross-model installations. Consult a Mazda service manual for precise compatibility details.

Q2

What are the maintenance requirements for the 4.0L V6 engine?

The 4.0L V6 engine requires regular oil changes every 5,000 miles, with synthetic or high-mileage oil recommended. Spark plugs should be replaced every 30,000 miles, and the timing belt inspected every 60,000 miles. Coolant flushes, air filter replacements, and fuel system cleanings are also essential for optimal performance. Adhering to the manufacturer's maintenance schedule is crucial.

Q3

How do I replace the 4.0L V6 engine in a Mazda B-Series?

Replacing the 4.0L V6 engine involves disconnecting the battery, draining fluids, and removing the exhaust, driveshaft, and transmission connections. Use an engine hoist to lift the engine out after detaching mounts and wiring. Installation is the reverse process, ensuring proper alignment and torque specifications. Refer to the service manual for detailed instructions and safety precautions.

Q4

What are common troubleshooting steps for the 4.0L V6 engine?

Common issues include rough idling, misfires, and oil leaks. Start by checking spark plugs, ignition coils, and fuel injectors for wear. Inspect the PCV valve and vacuum lines for leaks. Use an OBD-II scanner to identify error codes. For persistent problems, consult a professional mechanic or the Mazda service manual for advanced diagnostics.

Q5

How can I optimize the performance of the 4.0L V6 engine?

To optimize performance, upgrade to high-flow air filters and exhaust systems. Use premium fuel and synthetic oil for better lubrication. Regularly clean the throttle body and fuel injectors. Consider a performance chip or tuner to enhance engine mapping. Ensure proper tire pressure and alignment to reduce engine strain. Always follow manufacturer guidelines for modifications.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Mazda B-Series 4.0L V6 Service Manual

Coming Soon

Comprehensive guide covering maintenance, repair, and troubleshooting for the 4.0L V6 engine in Mazda B-Series trucks.

Technical Service Bulletin: 4.0L V6 Engine Updates

Coming Soon

Details updates and fixes for common issues in the 4.0L V6 engine, including recalls and recommended repairs.

Mazda B-Series Parts and Accessories Catalog

Coming Soon

Catalog listing OEM and aftermarket parts compatible with the 4.0L V6 engine and Mazda B-Series trucks.

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Technical Information
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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