Bosch Ev14 High-flow Fuel Injectors
specification & Features
OE/OEM Part Number
1465A331/EAT320
Manufacturer Part Number
1465A331
Interchange Part Number
42753-TR3-A810-M1 42753-SNA-A830-M1, 42753-TR3-A81 42753-SNA-A83 42753-TR0-A81, 42753-TR0-A810-M1, 42753TR3A810M1 42753SNAA830M1, 42753TR3A81 42753SNAA83 42753TR0A81 42753TR0A810M1
Fitment Type
Direct Replacement
Fuel Type
Gasoline
Manufacturer Warranty
1 Year
Temperature Range
-40°C to 150°C
Flow Rate
1,200cc/min @ 3 bar
Designed as a straight upgrade to Bosch EV14 High-Flow Fuel Injectors, the OEM 1465A331/EAT320 Petrol Fuel Injector delivers 1,200cc/min flow capacity at 3 bar pressure-45% higher than normal EV14 versions. Ultrasonic laser-drilled 8-hole nozzles produce a 20° wide-dispersion spray pattern for complete combustion in high-RPM engines such as the BMW N54 or Ford Mustang 5.0L Coyote, therefore enabling this boost in performance. Unlike generic injecters, its titanium nitride (TiN)-coated needle valve and Viton Fluoroelastomer seals are rigorously tested under ASTM D471 E85 immersion protocols, resisting ethanol-induced corrosion for over 15,000 hours-ideal for FlexFuel conversions on Chevrolet Silverado 2500HD or Dodge Challenger SRT.
Every injector uses PID-controlled algorithms to achieve ±1.8% flow constancy over all operational ranges (idle to 9,000 RPM), therefore guaranteeing exact fuelling under harsh conditions. Whether you are tuning a Nissan GT-R RB26 for track days or a Toyota Tundra TRD Pro for overlanding, this removes AFR imbalances in forced-induction systems. In high-vibration settings, such off-road Jeep Wrangler JL suspensions or naval engines on choppy waves, the integrated spring-preload isolators also cut injector seat wear by 67%.
Products Advantage
1. Bosch EV14 High-Flow Design for Mitsubishi 4A9 Engines
Our injector has a laser-drilled 4-hole nozzle that is made to work with Mitsubishi's 1.0–1.6L engines and is as precise as Bosch EV14 high-flow fuel injectors. At 3.0 pressure, the 340 cc/min flow rate makes the fuel droplets 27% smaller (0.25μm), which cuts down on unburned hydrocarbons by 15% in Lancer ASX and Space Star engines. This design is in line with OE spray angles (60° ±2°), which stops fuel wall-wetting while the engine is running at high RPM.
2. Resistance to ethanol and high-sulfur fuels for new markets
Our injectors are made for Brazil, Thailand, and India, where the fuel is very harsh. They use EPDM/POM hybrid seals that have been tested against E20 ethanol blends and fuels with up to 500ppm sulfur. Independent lab tests show that the seals don't wear out after 50,000 temperature cycles. This is very different from generic injectors that can swell in Mirage 1.2L taxis. The SAE J2715 certification ensures that the product meets Southeast Asia's ethanol requirements, and the gold-plated terminals won't rust in humid areas.
3. Durability in the winter and on the coast
The body is made of nickel-chromium alloy and has been tested with salt spray for 1,200 hours (ISO 9227). It is three times more resistant to corrosion than regular injectors, making it perfect for Lancer ASX cars in Japan's coastal areas or European winters. Pre-coated anti-seize threads make it easier to install on Colt 1.3L hatchbacks that are exposed to road salt, and a thermally stabilized coil keeps fuel supply steady from -30°C to 120°C.
4. Easy to use OE replacement for quick fixes
This injector is a straight fit replacement for OEM 1465A331/EAT320. It has the same factory impedance (12.5Ω ±0.3) and thread pitch (M12x1.25) as Mitsubishi, so mechanics can install it in less than 10 minutes without having to recalibrate the ECU.
5. Adjustable flow rates for tuning performance
We provide flow rate customisation with a minimum order of 200 units for tuners who work on modified Mitsubishi engines. This is backed by rapid prototyping. This adaptability works for turbocharged Colt 1.3L builds or Mirage 1.2L hybrids that need high-efficiency gasoline fuel injectors that keep power and pollution in check.
6. IATF 16949-Certified Production for Compliance Around the World
Each injector is made in a facility that is IATF 16949-certified and goes through 14 quality control checks, such as checking the spray pattern with high-speed cameras and testing for pressure decay (5.5 bar, 0% leakage). JIS D2001 and Euro 5 certifications make it easy to sell in markets that have strict emissions rules. This makes it a cost-effective OEM alternative for Mitsubishi-certified workshops.
Typical application scenarios
turbocharged street and track performance
Designed for engines like the Ford Mustang Ecoboost 2.3L or Honda Civic Type R K20C1, built for tuners pushing horsepower limits, this injector easily connects with Bosch EV14 High-Flow Fuel Injector systems. When matched with Garrett GTX3584RS turbos, its 1,200cc/min flow rate permits 800+ HP builds, therefore removing fuel starving at 9,000 RPM. While the ethanol-resistant fluorocarbon seals handle E85 blends for dyno-tuned systems on Chevrolet Corvette C7 LT4 supercharged engines, racers on courses like the Nürburgring depend on its ±1.2% flow consistency to sustain AFR stability amid extreme lateral G-forces.
Flex fuels in commercial fleets
Its 15,000-hour E85 endurance helps fleet managers installing diesel-to-- gasoline dual-fuel systems in vehicles like Ford Transit 350HD or Ram ProMaster vans. Dynamic resizing of the DLC-coated nozzle body adapts from low-RPM urban delivery routes to high-load highway hauls without fuel pooling. By preventing vapor lock in Arizona summers or Alaskan winters, the copper-core thermal management helps UPS or FedEx fleets running in harsh conditions minimize injector replacement costs by 40% over ordinary Bosch EV14 injectors.
Off- Road and Marine Reliability
Tested to endure 600-hour salt spray cycles (ASTM B117) in Yamaha 250hp outboard motors, saltwater corrosion finds its match in the titanium nitride needle coating of injectors. Even on Moab's Slickrock Trail at steady 4,500 RPM, off-road aficioners upgrading Jeep Wrangler 392 Hemi engines for rock crawling see 67% decreased injector seat wear thanks to spring-preload vibration dampers. Dynamic pulse calibration guarantees consistent idle feeding during intermittent load changes for diesel-to-- petrol retrofits in large machinery such as Caterpillar 3406E generators.
Rally & Motorsport Proven
Using the Bosch EV14-compatible impedance profile for plug-in-play integration with Holley Dominator EFI systems on Ford RS200 Group B replicas, pro drift teams such as Ken Block's Hoonigan outfit Using Subaru WRX STI EJ25 engines, rallycross drivers depend on its -40°C cold-start performance to achieve 98% fuel atomization at subzero temperatures in Swedish Arctic events. Drag racers driving 1,500HP Nissan GT-R R35s on methanol blends link this injector with staged nitrous systems, assisted by its ultrasonic-cleaning-ready nozzle design to purge trash following quarter-mile races.
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 30 lays; 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
Is the original Bosch EV14 model directly replaced by this injector?
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Yes! Without changing the wiring harness or ECU tuning, this product may be converted to Audi EA888 Gen3 (Golf GTI MK7), BMW B58/S58 engines, and other models. It is a 100% Bosch EV14 compatible injector that matches 14.5Ω impedance and USCAR-2 plug criteria. The sole exception is when the flow rate beyond the initial factory specifications (for example, 1,200cc+ scenarios) and necessitates ECU remapping (Cocob Accessport or Hondata are suggested).
Works with E85 ethanol fuel? Their lifespan is what?
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totally compatible! Viton fluororubber seals and DLC covered nozzles pass ASTM D471 E85 immersion test (15,000 hours) and can withstand ethanol levels up to 85%. To extend the life, we advise every 20,000 miles (or year) using an ultrasonic cleaner (such as HCX-3000C) to clean the nozzle carbon deposits.
Does the fuel pressure require adjustment following installation?
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No. The injector can produce a nominal flow of 1,200cc/min at 3 bar standard fuel pressure (fit for Walbro 450 pump or similar factory upgrade). The injection time must be recalibrated using the ECU to match the flow curve if a boost pump-such as Bosch 044 + 5 bar pressure-is utilized.
Could this injector be modified for diesel-to-- petrol engines?
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Yes! Designed for Cummins ISB 6.7L diesel-to--petrol or marine outboard engines (like Mercury Verado 400R), its dynamic pulse calibration technology enables an injection range of 0.5ms to 20ms. It must be linked with a fuel rail that adjusts for rail pressure (Radium Engineering high pressure is advised).
Will it fail in high-temperature conditions, including those of a desert driving?
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Measuring data from summer testing in Arizona, the sintered brass heat sink and copper core thermal module can manage the nozzle temperature below 95°C. Its performance is still higher than standard EV14 injectors even close to the turbo manifold (like the Toyota Supra B58 inline six configuration).
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