295050-0460
295050-0460 Denso Toyota Hilux 1KD Injector: 23670-30400 Specs
23670-30400, 23670-30401, 23670-39365, 23670-0L090, 295050-0460, 295050-0180, 295050-0200, 295050-0520, 295050-0540, 095000-7760PlateG3S61800 barProduct Overview
The DENSO 295050-0460 is an authentic original-equipment G3 electro-hydraulic common rail diesel fuel injector engineered specifically for Toyota 1KD-FTV (4-cylinder, 3.0-liter D-4D 16-valve DOHC) turbocharged intercooled diesel engines. Powering hundreds of thousands of Toyota Hilux 4WD pickups (KUN26 / KUN16 chassis), Toyota Land Cruiser Prado 120 and 150 series (KDJ120 / KDJ150), Toyota Fortuner SUVs (KUN51), and Toyota HiAce vans (KDH201 / KDH221) worldwide, this injector is the cornerstone of Toyota's high-pressure diesel injection system. Operating at injection pressures up to 1800 bar (26,100 psi) supplied by Denso HP3 high-pressure fuel pumps, the injector utilizes a calibrated G3S6 micro-hole nozzle assembly and a precision hardened Plate #507 electro-hydraulic control valve plate to deliver multiple micro-pilot, pre-, main, and after-injection pulses per engine stroke. Denso part number 295050-0460 supersedes earlier revisions 295050-0180, 295050-0200, 295050-0461, and corresponds directly to Toyota OEM part numbers 23670-30400, 23670-30401, 23670-39365, 23670-0L090, and 23670-09330.
CRITICAL WORKSHOP & BLACK DEATH WARNING: Whenever servicing Toyota 1KD-FTV injectors, inspect the engine oil sump pickup screen for carbon blockage! Factory copper injector seat washers on 1KD engines are notorious for failing, allowing superheated combustion blow-by gas into the valve train. This cooks the engine oil into granular black carbon sludge (
Vehicle & Engine Fitment
| Vehicle | Engine | Years |
|---|---|---|
| Toyota Hilux 3.0 D-4D 4x4 (KUN26) | Toyota 1KD-FTV (3.0L D-4D DOHC 16V) | 2006-2016 |
| Toyota Land Cruiser Prado 120 / 150 (KDJ120 / KDJ150) | Toyota 1KD-FTV (3.0L D-4D DOHC 16V) | 2006-2016 |
| Toyota Fortuner 3.0 D-4D (KUN51) | Toyota 1KD-FTV (3.0L D-4D DOHC 16V) | 2006-2016 |
| Toyota HiAce 3.0 D-4D (KDH201 / KDH221) | Toyota 1KD-FTV (3.0L D-4D DOHC 16V) | 2006-2016 |
Technical Specifications
| Specification | Value |
|---|---|
| SKU | 295050-0460 |
| Brand | DENSO / Toyota |
| Type | Complete Common Rail Injector (Denso G3 Series) |
| OE Number | 23670-30400, 23670-30401, 23670-39365, 23670-0L090, 295050-0460 |
| Control ValveCore Spec | |
| Nozzle CodeCore Spec | |
| Internal Nozzle P/NCore Spec | |
| Magnet Assembly | Denso G3 Solenoid Actuator Assembly |
| Seal Ring Kit | Toyota 11176-30011 (Updated Coated Washer) |
| Injection System | Denso Common Rail System (CRS G3 Series) |
| Operating PressureCore Spec | |
| Torque Spec | 32 N·m |
| Hold Down Torque | 21 N·m |
| Warranty | 12 Months |
| Emission Standard | Euro 4 / Euro 5 / EPA Tier 2 |
| Engine Family | Toyota 1KD-FTV D-4D (3.0L) |
| Coding Required | Yes (30-digit Denso QR Code) |
Installation Tips
Tools needed: 17 mm flare nut crowfoot wrench (for high-pressure fuel pipe unions), 10 mm, 12 mm, and 14 mm sockets with calibrated torque wrench (range 5 to 50 N·m), Toyota Techstream diagnostic software or professional bidirectional scan tool, Brass injector bore cleaning kit and workshop vacuum, Specialized brass washer removal pick tool, Boroscope / inspection camera to inspect oil pickup screen through drain plug, High-temperature ceramic anti-seize paste (for injector body only, never on nozzle tip)
- Depressurize fuel system and disconnect battery: Switch off ignition, disconnect negative battery terminal, and allow common rail fuel pressure to dissipate below 10 bar before loosening any fittings.
- Remove intercooler and rocker cover plumbing: Remove top-mount intercooler assembly, disconnect breather hoses, and thoroughly clean the surrounding rocker cover area to eliminate road dust and sand.
- Inspect oil sump pickup screen: While the engine is cold and oil drained, insert a boroscope through the oil pan drain plug hole to visually confirm the oil pickup screen mesh is free of granular carbon granules.
- Label and disconnect electrical connectors: Unclip the electrical wiring harness from each injector solenoid cap and detach the fuel leak-off spill line clips.
- Remove high-pressure fuel feed lines: Loosen the 17 mm union nuts at the fuel rail and injector inlet pipes. Remove pipes completely and immediately seal all exposed ports with clean plastic blanking caps.
- Remove injector hold-down clamp bolts: Unbolt the 12 mm clamp retaining bolts and remove the clamps.
- Extract injectors from cylinder head: Gently pull injectors vertically from their bores. If carbon-stuck, apply penetrating lubricant and use an injector slide-hammer puller without twisting the body.
- Retrieve and inspect old seat washers: Ensure all four copper seat washers come out. If a washer is stuck in the head bore, extract it with a brass retrieval hook without scoring the aluminum seating surface.
- Clean injector bores thoroughly: Use rotating brass bore brushes and workshop vacuum extraction until the bottom seating deck is clean, flat, bare aluminum.
- Install new updated coated seat washers: Fit genuine Toyota updated coated aluminum-bronze washers (part 11176-30011) and new injector body O-rings lubricated with clean engine oil.
- Seat injectors and torque clamp bolts: Lower injectors into their bores. Reinstall hold-down clamps and tighten bolts to exactly 21 N·m (15.5 lb·ft) with a calibrated torque wrench.
- Reinstall fuel lines and leak-off pipes: Reinstall leak-off rail with new crush washers (torque 16 N·m). Hand-thread high-pressure fuel lines, then torque unions to 32 N·m (24 lb·ft).
- Prime fuel circuit: Operate the manual primer pump on top of the fuel filter housing until firm resistance is felt, purging all air pockets from the low-pressure circuit.
- Program 30-digit QR calibration codes: Connect Toyota Techstream, enter each cylinder's 30-digit QR code from the new injectors, reset injector adaptation data, start engine, and verify live feedback values remain within +/- 1.5 mm³.
- NEVER SKIP OIL PICKUP INSPECTION: A clogged oil pickup screen is the #1 killer of 1KD engines following injector blow-by. Always check the mesh before completing the job.
- USE UPDATED 11176-30011 WASHERS: Only fit the revised Toyota coated aluminum-bronze seat washers — standard plain copper washers are prone to premature annealing and blow-by.
- RECORD QR CODES FIRST: Photograph the 30-character QR code stamped on each injector top before installing, as it cannot be read once fitted under the harness.
- STRICT 21 N·m CLAMP TORQUE: Over-tightening clamp bolts distorts the Denso injector body tube, causing instantaneous internal needle seizure.
Frequently Asked Questions
What is the 1KD-FTV 'Black Death' and how do new injector washers prevent it?
On Toyota 1KD-FTV engines, the factory copper injector seat washers tend to erode or work-harden over time, allowing superheated high-pressure combustion gas to blow past the injector body into the rocker cover. This blow-by gas cooks the engine oil into hard granular carbon particles. These particles drop into the oil sump and completely clog the oil pickup strainer. Once starved of oil, the engine suffers rapid catastrophic failure: spun crankshaft bearings, seized camshafts, or cracked pistons. To prevent this, always install Toyota's updated coated aluminum-bronze sealing washers (part number 11176-30011) whenever replacing or reinstalling injectors, and inspect the oil pickup mesh via the drain plug or sump drop.
Why is the 30-digit QR compensation code mandatory on Toyota 1KD injectors?
Every Denso 295050-0460 injector has a unique 30-digit alphanumeric QR code laser-etched on its electrical connector body. This code provides the Toyota engine ECM with individual micro-calibration data for fuel delivery variance across pilot, main, and post-injection pressure bands. Registering this code using Toyota Techstream or an equivalent diagnostic tool is mandatory. An uncoded injector will cause uneven cylinder feedback values, severe cold idle knocking ('1KD cold rattle'), excessive soot production, and premature DPF plugging.
What are normal injector feedback values for Toyota 1KD-FTV on diagnostic live data?
When viewing live data on Toyota Techstream at operating coolant temperature (80°C+) and idle speed in Park/Neutral: healthy injector feedback values must sit between -3.0 mm³ and +3.0 mm³, with optimal target values within -1.5 mm³ to +1.5 mm³. If any cylinder approaches or exceeds +/- 3.0 to 5.0 mm³, that injector's internal control valve or nozzle is worn and requiring immediate replacement.
What are the exact torque specifications for Toyota 1KD injector installation?
Tighten the injector hold-down clamp retaining bolt to exactly 21 N·m (15.5 lb·ft / 186 lb·in). Do NOT over-torque this bolt, as excess clamping force distorts the injector body and binds the internal needle. Tighten the high-pressure fuel pipe union nuts at the common rail and injector inlet to 32 N·m (24 lb·ft) using an open flare nut crowfoot. Tighten the leak-off fuel return pipe banjo union bolts to 16 N·m (12 lb·ft) with new aluminum crush washers.
Should Toyota 1KD injectors be replaced as a complete set of four?
Yes, workshop consensus across Hilux and Prado specialist shops strongly advises replacing all four injectors as a complete balanced set once the vehicle surpasses 150,000 km (90,000 miles). Because all four cylinders experience identical thermal load and fuel throughput, replacing just one injector leaves the remaining three prone to failure shortly after, while creating uneven idle balance and combustion harmonics.
Diagnostic Trouble Codes & Fault Protocols
Common diagnostic trouble codes (DTCs) triggered when this common rail injector experiences wear, circuit faults, or calibration drift:
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
Injector Circuit Malfunction / Open Circuit
Solenoid coil resistance drift (0.2-0.5 Ω) or piezo stack degradation triggers driver stage shutdown on affected cylinders.
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
Cross-Reference & Compatibility
Sister parts, same-platform variants, and known incompatibilities.
Technical Diagnostic & Service Protocols
Authoritative field procedures, diagnostic testing thresholds, and service SOPs for this assembly.