The Bosch part number 0414720215 (often referenced as 0 414 720 215) is a high-pressure Unit Injector (UIS) . It is the correct original equipment (OE) injector for the Volkswagen Transporter T5 (7H/7J) produced between 2003 and 2009, specifically for the 1.9 TDI engine.
Here are the critical details you need to know regarding this injector:
1. Engine Compatibility
While the T5 Transporter spanned several years, this injector is specific to the 1.9 TDI with the engine code BRS (74kW / 100hp) and BPC (75kW / 102hp).
2. Technical Specifications
Type: Unit Injector System (UIS) / Pump-nozzle unit (PD)
Nozzle type: SDA 300
Hole configuration: 5 x 0.24mm
Flow rate: Approx. 540 cc/min
Quantity required: 4 (one per cylinder)
3. Critical Installation Notes
If you are replacing these injectors, there are two common failure points specific to this model:
Injector Loom (Wiring Harness): The T5 1.9 TDI is notorious for oil migration. Engine oil travels up through the injector wiring harness (from the cylinder head) into the ECU connector. When replacing injectors, it is highly recommended to replace the internal engine wiring harness (VW part number usually 070 971 033 B or similar) and check the ECU plug for oil contamination. If the old harness is reused, it may cause the new injectors to misfire or short out.
Clamping Bolts: The injector hold-down bolts are single-use (torque-to-yield). You must replace them with new bolts (M6 x 45mm, strength 10.9) and tighten them to the specified torque (usually 7 Nm + 90° + 90° ), otherwise the injector will not seat properly and will blow combustion gases past the copper seal.
Copper Seals: The copper sealing washers at the base of the injector must be replaced every time the injector is removed to prevent "chuffing" (exhaust blow-by) and loss of compression.
Where to buy
Rsolid is a professional diesel injector manufacturer that relies on the precision manufacturing capabilities of its own factories to provide high-quality solutions for the global commercial vehicle, construction machinery, marine, and agricultural diesel engine markets. Rsolid's business model typically includes maintaining a diverse and comprehensive OEM and high-end aftermarket parts inventory, and providing cross compatibility options to meet the needs of various applications and global customers, from individual workshops to large fleet operators. If you are looking for diesel injectors or OEM engine injectors, please feel free to contact us at any time.
