Toyota Diesel 1984-2005 2L 3L OEM Injector Set of (4) 23600-59105

Product Overview

Genuine OEM Toyota fuel injector set (4 units) compatible with 1984-2005 Toyota vehicles equipped with 2L (2.4L) and 3L (2.8L) diesel engines. This complete fuel injector replacement kit delivers precise fuel atomization, optimal combustion efficiency, and reliable performance for Toyota's legendary L-series diesel engines. This OEM-quality set ensures all four cylinders receive matched fuel delivery for balanced engine operation and maximum longevity.

OEM Part Number(s):

• 23600-59105 (primary Toyota OEM)

 

Key Features & Benefits

• Complete Set of 4: All four injectors included for comprehensive replacement and matched fuel delivery across all cylinders
• OEM Quality: Genuine Toyota/Denso specifications ensure proper spray pattern, atomization, and fuel pressure
• Universal 2L/3L Compatibility: Works with both 2.4L (2L) and 2.8L (3L) naturally aspirated diesel engines
• Performance Restoration: Eliminates rough idle, black smoke, poor fuel economy, and hard starting caused by worn injectors
• Matched Set Advantage: Replacing all four injectors simultaneously prevents uneven cylinder performance and ensures optimal engine balance

 

Technical Specifications

Part Type: Diesel Fuel Injector Assembly (Complete Holder & Nozzle Set)
Engine Compatibility: Toyota 2L (2.4L), 3L (2.8L) naturally aspirated diesel
Injection Type: Indirect injection (IDI) diesel system
Manufacturer: Denso OEM quality
Quantity per Set: 4 fuel injectors (one complete set)
Nozzle Type: Pintle-style indirect injection nozzle
Material: High-grade steel with precision-machined components

Fitment

Year Range	Toyota Model	Engine Options
1984-1995	Hilux Pickup	2L 2.4L, 3L 2.8L diesel
1988-2004	Hiace Van	2L 2.4L, 3L 2.8L diesel
1990-2002	4Runner / Hilux Surf	2L 2.4L, 3L 2.8L diesel (international markets)
1990-2000	Land Cruiser 70/90 Series	2L 2.4L, 3L 2.8L diesel (select markets)
1996-2005	Land Cruiser Prado	2L 2.4L, 3L 2.8L diesel (international markets)
1990-2002	Regius Ace Van	2L 2.4L, 3L 2.8L diesel
1985-2002	Dyna / ToyoAce Trucks	2L 2.4L, 3L 2.8L diesel
1988-1996	Crown Sedan/Wagon	2L 2.4L diesel (Japanese market)
1988-1996	Chaser / Cresta / Mark II	2L 2.4L diesel (Japanese market)
1988-1996	Cressida	2L 2.4L diesel (select markets)

Important: This injector set is specifically designed for naturally aspirated 2L and 3L diesel engines with indirect injection (IDI) systems. NOT compatible with turbocharged variants (2L-T, 2L-TE) or electronically controlled injection systems. Verify engine code and injection system type before ordering. Complete set replacement is strongly recommended - mixing worn and new injectors causes unbalanced fuel delivery and poor performance.

Installation & Maintenance

Installation Difficulty: Intermediate to Advanced
Tools Required: Socket set, torque wrench, injector puller tool, new copper washers/seals, thread sealant, fuel system cleaning solution
Professional Installation: Recommended - requires proper injector timing, torque specifications, and fuel system priming

Critical Installation Notes:

• Replace all four injectors as a complete set - never mix old and new injectors for optimal performance
• Replace copper sealing washers and heat shields during installation to prevent fuel leaks
• Clean injection pump delivery lines thoroughly before installing new injectors
• Bleed the fuel system completely after installation to remove all air from the fuel lines
• Use proper torque specifications (typically 50-60 Nm) to avoid damaging cylinder head threads
• Allow the engine to idle for 10-15 minutes after installation to ensure proper fuel system stabilization

 

Frequently Asked Questions

Q: Why must I replace all four injectors instead of just the failed one?
A: Fuel injectors wear gradually over time. Mixing worn injectors with new ones creates an unbalanced fuel delivery across cylinders, resulting in a rough idle, uneven power delivery, and accelerated wear on the new injectors. Complete set replacement ensures all four cylinders receive identical fuel atomization and spray patterns for optimal engine performance and longevity.

Q: Will these injectors work with turbocharged 2L-T or 2L-TE engines?
A: No, these injectors are specifically designed for naturally aspirated 2L and 3L engines. Turbocharged variants use different injector specifications with higher fuel delivery rates and nozzle designs to accommodate higher boost pressure and increased fuel demands.

Q: What's included in this set?
A: This set includes four (4) complete fuel injector assemblies with holder and nozzle. Copper sealing washers, heat shields, and fuel line connections are typically not included and should be replaced separately during installation.

Q: How often should diesel fuel injectors be replaced?
A: With proper maintenance and quality diesel fuel, Toyota 2L/3L injectors can last 200,000-300,000 km. However, poor fuel quality, contaminated fuel, or lack of regular fuel filter changes can significantly reduce injector lifespan. Replace injectors when experiencing symptoms of failure or during a major engine rebuild.

Related Toyota Parts You May Need

• Fuel Filter Set (23303-64010) - Replace before installing new injectors to prevent contamination
• Injector Copper Washers/Seals - Essential for proper sealing and preventing fuel leaks
• Injection Pump Rebuild Kit - Consider servicing the pump when replacing injectors for a complete fuel system refresh
• Glow Plugs Set - Often replaced during injector service for improved cold starting
• Fuel Injection Lines - Inspect and replace if corroded or damaged during injector replacement
• Valve Cover Gasket - Convenient time to replace during top-end service

 

Common Symptoms of Fuel Injector Failure

• Rough idle and uneven engine operation at all RPM ranges
• Excessive black smoke from exhaust indicates incomplete combustion
• Significant decrease in fuel economy (3-5 km/L reduction)
• Hard starting, especially when the engine is cold
• Loss of power and throttle response under load
• Diesel fuel odor around the engine bay indicates external leakage
• Engine knocking or unusual combustion noise from poor fuel atomization
• Check engine light (on electronically controlled variants)

 

Why Replace Your Toyota 2L/3L Fuel Injectors?

Toyota's 2L and 3L diesel engines earned their reputation for bulletproof reliability through precise engineering and quality components. The fuel injection system is the heart of diesel engine performance, and worn injectors directly compromise the efficiency, power output, and longevity that made these engines legendary worldwide.

Fuel injectors operate under extreme conditions - high pressure, constant cycling, and exposure to fuel contaminants. Over time, even the highest-quality injectors can wear in critical areas such as nozzle tips and needle valves, leading to degraded spray patterns and inconsistent fuel delivery. This wear manifests as rough operation, black smoke, poor fuel economy, and eventually complete injector failure.

The indirect injection (IDI) system used in 2L and 3L engines requires precise fuel atomization in the precombustion chamber for optimal performance. When injectors wear, the degraded spray pattern causes incomplete combustion, carbon buildup, and accelerated wear throughout the engine. This cascading effect can damage glow plugs, precombustion chambers, and even piston rings if left unaddressed.

Complete Set Replacement: Industry professionals and experienced diesel mechanics universally recommend replacing all four injectors simultaneously, even if only one appears to be failed. Here's why: fuel injectors age together under identical operating conditions. When one fails, the remaining three have experienced the same wear and will likely fail soon after. Piecemeal replacement creates an unbalanced fuel delivery situation in which new injectors spray differently from worn ones, causing uneven cylinder-to-cylinder operation that accelerates wear on both the new and old injectors.

Genuine OEM injectors are manufactured to exacting tolerances with matched spray patterns across the set. This precision ensures each cylinder receives identical fuel delivery, maintaining the balanced operation essential for smooth diesel performance. Aftermarket injectors, while potentially less expensive individually, often lack this consistency and may use inferior materials that cannot withstand the demanding operating environment.

Protecting Your Investment: If you've maintained your Toyota diesel engine through regular oil changes and proper maintenance, don't compromise its legendary reliability with substandard fuel injectors. These engines are known to exceed 500,000 km with proper care, but only when critical components like fuel injectors maintain OEM specifications.

The modest investment in a complete OEM injector set pays dividends through restored fuel economy (often recovering 2-4 km/L), improved power delivery, reduced emissions, and extended engine life. Consider this replacement as preventive maintenance that protects the substantial value of your Toyota diesel powerplant.

Trust genuine Toyota OEM fuel injectors to maintain the precision fuel delivery that has made 2L and 3L diesel engines the gold standard for reliability in commercial vehicles, off-road applications, and daily transportation worldwide. Your engine deserves nothing less than the quality components that built Toyota's diesel reputation.