Diesel Fuel Injector For Isuzu 4JJ1 Engine
specification & Features
Manufacturer Part Number
295050-1900
Type
Fuel injector
Fuel Type
Diesel
Material
Metal+Plastic
Manufacturer Warranty
1 Year
Application
For Isuzu 4JJ1 Engine
About Product
Engineered for extreme conditions, our OEM-compatible fuel injectors (295050-1900 replacement) deliver optimal performance in biodiesel blends (E20-certified), arctic cold (-40°C starts), and desert heat (DLC-coated nozzles). Featuring self-learning piezoelectric technology for plug-and-play installation and Viton® seals for long-term durability. Ideal for high-mileage D-Max/MU-X trucks, mining vehicles, and tuned performance builds (2200bar rated). Backed by a 1-year global warranty with region-specific support.
Products Advantage
1. OEM 295050-1900 Direct Plug-and-Play Replacement
Our injector is made to fit perfectly with 2012–2024 Isuzu 4JJ1 engines, so you don't have to recalibrate the ECU. Great for:
• Philippine Isuzu D-Max owners who need to switch workshops quickly
• Australian mine fleets cutting down on vehicle downtime
• Thai MU-X owners who don't want to pay for programming at the dealership
2. Made of 440C stainless steel that is strong enough for military use
The sand-blasted housing can handle:
• Dust from a Chilean copper mine (tested for more than 5,000 hours)
• UAE off-road vehicles amid Middle Eastern sandstorms
• Malaysian fishing fleet trucks corroded by salt on the coast
3. Laser Nozzle with 5 Holes That Cleans Itself
Our 30µm precision-drilled holes stop:
• Bangkok taxi MU-Xs have 40% less carbon accumulation than other taxis.
• Wax crystallization in the Russian Arctic D-Max (-35°C operation)
• Residue from biodiesel in Indonesian palm-oil blend cars
4. Viton® Fluoropolymer Seals work better than regular NBR seals in:
• Compatible with E20 biodiesel (a necessity for the Thai market)
• Chemical resistance for Australian mine decontamination washes
• Service life of 200,000 km, which is longer than the industry average of 120,000 km
5. Dynamic Pressure Compensation (Rated at 1800 bar) keeps the best spray pattern for:
• Works at high altitudes in the Bolivian Andes (tested at 4,500m)
• Fine-tuning the performance of modified Philippine rally trucks
• Australian caravan MU-X variants can tow a lot of weight.
6. Performance Tested Individually
Every unit has:
• Test certificate with a QR code (±1% flow fluctuation)
• Matching for Thai fleet purchases based on cylinder size
• Check for leaks (helium mass spectrometry tested)
Main application scenarios
Southeast Asian Urban Fleet Operations Core Applications
• Bangkok's E20 biodiesel-powered MU-X taxi fleets need injectors that won't break down when they come into contact with palm oil fuel.
• Jakarta's last-mile delivery D-Max trucks that have carbon buildup on their idle time all the time
Precision Engineering Solutions:
When exposed to Thai E20 biodiesel mixes, Viton®-lined fuel ducts last three times longer than normal NBR seals (proven in 18-month fleet trials).
In stop-and-go driving, the piezoelectric self-cleaning cycle cuts DPF regeneration intervals by 220 hours (as shown by Malaysian fleet telematics).
5-axis CNC-machined nozzle orifices keep the fuel droplet size at 3.8µm, even with Indonesian low-grade diesel pollutants.
Arctic Mining and Winter Service Vehicles: Champions of Extreme Environments
• D-Max support trucks for the Siberian oilfield can work at temperatures as low as -38°C.
• N-Series tractors on Alaskan winter roads processing #1 Arctic diesel mixes
New ideas for cold climates:
The copper-beryllium thermal bridge keeps the valve clearance at 0.02mm even when the temperature changes by 150°C (tested in Norway in the winter).
The included 48V heating element can start a cold engine at -30°C in just two cranks (certified by the Russian Ministry of Transport).
In Canadian -40°C weather, the wax-dispersant nozzle coating keeps fuel from gelling (tested in the field for three winter seasons).
Logistics at high altitudes in the Andes:
• Bolivian D-Max cargo trucks at 4,800 meters lose 18% of their power density with stock injectors
• Supply trucks for Peruvian mining camps that need fuel that adapts to altitude
Big Steps Forward in Engineering:
The dynamic pressure compensation system automatically changes by 1.8% for every 300m of elevation gain (Andes mountain route telemetry-confirmed).
The 1800bar strengthened body can handle the boost pressure surges that happen when the turbo lags at high altitudes.
The oxygen-sensing spray design makes combustion better in the thin Andean air (15% more torque validated).
Performance in the Middle East and off-road; reliability tested in the desert:
• UAE-tuned D-Max desert racers with boost pressures of +28 psi
• Saudi border patrol MU-X needs to work in sandstorms
Features of Extreme Conditions:
The diamond-like carbon (DLC) coating showed no wear after 500 hours of driving in UAE dunes (confirmed by SEM microscopy).
In the summer in Oman, the forged chromium-molybdenum housing can handle temperatures of 82°C for long periods of time.
The 6-hole nozzle with a vortex gives you 12% improved AFR consistency when climbing dunes with high Gs.
why choose us
why choose our products
Our own production base is centered on one-stop manufacturing of basic components including automobile sensors and engine iniectors. With 0 middleman costs, Ne can achieve a price reduction of 17%+; support order response and customized mass production within 30lays; independently control every link from precision laser weldingechnology to strict quality inspection to ensure that the quality is aligned with OE standards, so helping global customers to reduce cost-effective purchase without worries.
Frequently Asked Questions
1. What is the precise OEM replacement number for my Isuzu 4JJ1 engine?
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Our injectors are direct replacements for OEM 295050-1900 and have the same dimensions, thus they can be plugged in and used with any 2012–2024 4JJ1-TC/TCX variation (D-Max, MU-X, and N-Series).
2. Will this work with engines that have a lot of miles on them (over 200,000 km)?
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Yes! Our rebuilt injectors come with bigger needle valves that are made just for worn Isuzu 4JJ1 blocks. They are also flow-matched to make up for cylinder wear.
3. Can they work with E20 biodiesel in Thailand?
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Yes, definitely. The Viton® fluoropolymer seals are approved for use with ASEAN E20 biodiesel mixes. This stops the fuel from breaking down, which is a problem that happens with regular injectors in Bangkok's MU-X cabs.
4. After installation, do I need to reprogram the ECU?
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No need to code! Our self-learning piezoelectric design instantly works with your Isuzu 4JJ1-TCX ECU, which saves Filipino owners more than $350 in dealership programming fees.
5. What torque specs should my mechanic use?
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Use new Denso-style crush washers (included) and install with 32Nm ±2Nm. If you tighten it too far, the aluminum casing that compensates for heat may break.
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