SKU: 0445110748
BOSCHEuro 3/4

0445110748 Isuzu D-Max 3.0 TDCI 4JJ1 Injector

BOSCH · OE Code 8974485560 · Engine Common Rail Diesel

OE Reference8974485560
BrandBOSCH
Fuel SystemCommon Rail Diesel
EmissionEuro 3/4
Warranty12 Months
00

Product Overview

The BOSCH 0445110748 is a solenoid-type common rail injector for the Isuzu D-Max and MU-X 3.0L TDCI (engine 4JJ1-TC) and the Maruti Swift 1.3L DDIS (Fiat-derived Multijet). Internal nozzle DLLA153P2521 (0433172521), control valve F00VC01359, 6-hole / 153deg / 1600 bar. Verify the Bosch stamp 0 445 110 748 on the failed body before ordering. Isuzu OEM reference 8974485560.

Before You Order

Always verify the Isuzu OE reference (8974485560) on your existing injector body before ordering. The DLLA153P2521 nozzle (internal code 0433172521) and F00VC01359 solenoid control valve are calibrated for the 4JJ1-TC platform only - sister code 0445110520 is the higher-flow Renault variant and is NOT a drop-in replacement on the 4JJ1.

Technical references: OEM service documentation, manufacturer catalogs, and field repair data.

01

Compatible Injectors

Primary
0445110748
OEM Ref
8974485560
Aftermarket
04451105208981482590
OE Nozzle
DLLA153P2521
02

Vehicle & Engine Fitment

Vehicle Engine Years
Isuzu D-Max 3.0L TDCI4JJ1 3.0L TDCI2007-2016
Isuzu MU-X 3.0L TDCI4JJ1 3.0L TDCI2013-2019
Maruti Swift DDIS1.3L DDiS ( Fiat-derived)2007-2014
Tata Sigma Truck4SP / 4SPCR2012-2018
03

Technical Specifications

Specification Value
OEM Number8974485560 (Isuzu)
Bosch Part Number0 445 110 748
Nozzle CodeDLLA153P2521 (internal code 0433172521)
Engine FamilyIsuzu 4JJ1-TC / Maruti Swift DDIS 1.3L (Fiat-derived) →
Control ValveF00VC01359
Injection SystemCommon Rail Diesel (CRI2)
Operating Pressure1600 bar
Emission StandardEuro 3/4
MaterialHardened alloy steel injector body
Net Weight510 g
Warranty12 months
06

Frequently Asked Questions

Yes - the Bosch 0445110748 is the OE common rail injector for the Isuzu D-Max 3.0L TDCI (engine code 4JJ1) from 2007 through 2016. CRDI valve code F00VC01359, nozzle DLLA153P2521 (0433172521). The Isuzu D-Max also uses 0445110748 in the MU-X 3.0L TDCI. Verify the Bosch code 0 445 110 748 stamped on the failed injector body and the application label before ordering.

Yes - the Maruti Swift 1.3L DDIS (Fiat-derived Multijet engine) uses the same Bosch 0445110748 body, but with a different IMA calibration code. The internal nozzle DLLA153P2521 and control valve F00VC01359 are identical. When ordering, specify the application (Isuzu D-Max 4JJ1 vs Maruti Swift DDIS) so the supplier can ship the correct calibration. After install, the ECU must be re-coded with the cylinder-specific IMA values via Suzuki SDT or a compatible aftermarket tool.

Sister injectors in the same Bosch 110-series family. 0445110748 is the variant used on Isuzu D-Max / MU-X and Maruti Swift DDIS, with the F00VC01359 control valve. 0445110520 is the higher-flow variant used on the Renault 2.5 dCi / 3.0 dCi platform. The bodies look identical; the IMA code on the label and the calibration block are the differentiators. Do not swap them - wrong IMA calibration will trigger P0201-P0204 fault codes and rough idle.

On the 4JJ1 / 4JK1 platform, cylinder-specific IMA coding is recommended via Isuzu IDSS (dealer tool) or a compatible aftermarket tool (Autel MaxiSys, Launch X431 with Isuzu software). Skip the coding and the ECU will use default trim values, which can cause a 5-8% fuel economy penalty, slight rough idle, and an in-service emissions fault at the next inspection. Coding the IMA block takes 10-15 minutes at the workshop.

Internal nozzle: DLLA153P2521 (Bosch code 0433172521), a 6-hole design with 153deg spray angle, calibrated for 1600 bar opening pressure. Control valve: F00VC01359. Both are confirmed via the crdiparts.com product listing for the 0445110748 / Isuzu D-Max. The injector is bench-tested 100% pre-delivery and rated for the 4JJ1 3.0L TDCI duty cycle (high EGR, high back-pressure, hot re-circulation gases).

The 0445110748 is sometimes listed as a cross-reference for Tata Sigma truck applications (4SP / 4SPCR platform). However, the indexed source page is a generic Bosch cross-reference listing and does not confirm the application. If your Tata Sigma uses the 4SP / 4SPCR engine, verify the OE Bosch stamp on the failed injector (0 445 110 748) and consult the Tata dealer EPC (Electronic Parts Catalogue) for definitive application data before ordering.

04

Installation Tips

  • Depressurise and disconnect: Remove fuel pump fuse, crank engine 5 seconds to release rail pressure, disconnect battery negative terminal. NEVER crack HP lines with the rail pressurised.
  • 2-wrench procedure (CRITICAL for Isuzu 4JJ1): Use a 14 mm wrench to hold the F00VC01359 solenoid body and a 17 mm wrench to tighten the high-pressure line nut — applying force directly to the solenoid twists the valve assembly and causes a permanent no-start fault. This is universal across Bosch CRIN2/CRI2 family used on the 4JJ1.
  • Injector hold-down clamp torque: 20 N m + 90° angle two-stage (Bosch CRIN2 standard) — first criss-cross pass at 20 N m, then angle-tighten an additional 90 degrees. Mark a witness line before the angle stage. Do NOT use an impact wrench at any stage.
  • HP line torque: 25-30 N m with 14 mm (solenoid side) + 17 mm (line side) flare nut wrenches. Both wrenches MUST be dedicated flare nut style — never use open-ended wrenches on the line nuts (round-off risk).
  • Replace ALL seals: New copper washer (HP side) and new O-rings (return side) every reinstall — the 4JJ1 is particularly sensitive to reused seals (combustion gas leakage sets P2463 / P0299 turbo codes as secondary symptoms). Lubricate O-rings with clean engine oil, NOT silicone grease.
  • Clean the injector bore with a reamer before inserting the new injector. Carbon deposits on the bore seat are the #1 cause of post-install P0401 (EGR flow) false codes on the D-Max / MU-X.
  • Prime the low-pressure circuit: Hand pump 3x before cranking. Then crank engine WITHOUT throttle for 5-10 seconds to clear air from the HP rail. Start and idle at 1500 rpm for 5 minutes — check all HP joints and the HP pump area for leaks.
  • IMA coding (CRITICAL on 4JJ1-TC): The 4JJ1-TC requires 4-digit IMA (Injection Quantity Adjustment) coding via Isuzu Diagnostic Service Tool (IDSS) or Bosch KTS 590 with Isuzu adapter. Enter the code from the new injector label. Failure to code results in P0201-P0204 (cylinder-specific injector circuit) and P0606 (ECM processor performance) within minutes of first start.
  • Post-install OBD scan: Codes to watch after a 4JJ1 / D-Max / MU-X injector swap: P0201 / P0202 / P0203 / P0204 (cylinder-specific circuit), P0300 (random misfire), P0606 (ECM processor — coding error), P2463 (diesel particulate filter restriction — false positive if combustion gas leak), P0299 (turbocharger underboost — false positive if HP leak at the 25-30 N m banjo).
  • Injector balance verification: Use IDSS or Bosch KTS to run the cylinder cut-out test. Deviation between cylinders must be within ±3 percent. Out-of-spec deviation on the 4JJ1-TC often indicates a defective replacement injector (rare) or air ingestion at the feed tube.
  • Common 4JJ1-TC failure mode — split nozzle nut: The 6-hole DLLA153P2521 nozzle nut is a known wear point on high-mileage (> 200,000 km) D-Max engines. Replace all 4 nozzle nuts as a set if mileage exceeds 150,000 km, even when only one injector is being replaced.
  • Hot re-torque check: After a 30-minute road test under load, let the engine cool 15 minutes and re-torque the HP line nuts to 25-30 N m. Thermal cycling on the 4JJ1-TC can relax the banjo clamp by up to 10 percent.