Opel Z17DTH 1.7L Engine

Opel Astra H Z17DTH 1.7L (LPZ) Engine For Sale

Searching for a dependable Opel Astra H Z17DTH 1.7L turbo diesel engine for sale? The Opel Z17DTH, also known by the LPZ engine designation in certain applications, is a fuel-efficient and durable diesel powerplant designed to deliver strong performance, excellent economy, and long-term reliability. Featuring a 1.7-litre inline four-cylinder configuration, Double Overhead Camshafts (DOHC), 16 valves, Common Rail Direct Injection technology, and a turbocharger, this engine became a popular choice in the Astra H range thanks to its impressive balance of power and efficiency.

Developed from the proven Isuzu Circle L diesel engine family, the Z17DTH was engineered to meet modern emissions standards while providing responsive torque and economical running costs. Furthermore, its advanced common rail fuel system delivers precise fuel metering, resulting in improved combustion efficiency and smoother engine operation. The combination of a turbocharger and intercooling system allows the engine to produce strong pulling power, making it well suited for both city driving and long-distance travel.

The Opel Z17DTH produces approximately 74 kW (100 hp) and 240 Nm of torque, offering excellent drivability and fuel economy. In addition, its widespread use across Opel’s diesel vehicle range has ensured good parts availability and straightforward maintenance, making it a practical replacement engine for many vehicle owners.

Compatible Opel Models

The Z17DTH engine was fitted to several Opel and Vauxhall vehicles, including:

• Opel Astra H 1.7 CDTI
• Opel Astra H Caravan 1.7 CDTI
• Opel Astra H GTC 1.7 CDTI
• Opel Meriva A 1.7 CDTI
• Opel Combo C 1.7 CDTI
• Opel Corsa C 1.7 CDTI
• Vauxhall Astra Mk5 1.7 CDTI
• Vauxhall Meriva 1.7 CDTI

Engine Specifications

• Engine Code: Z17DTH (LPZ)
• Displacement: 1,686cc (1.7L)
• Configuration: Inline 4-Cylinder
• Fuel Type: Diesel
• Aspiration: Turbocharged
• Fuel System: Common Rail Direct Injection (CDTI)
• Valvetrain: DOHC, 16 Valves
• Power Output: Approximately 100 hp (74 kW)
• Torque Output: Approximately 240 Nm
• Cylinder Head Material: Aluminium
• Engine Block Material: Cast Iron
• Cooling System: Water-Cooled
• Emissions Standard: Euro 4

Common Weaknesses & Maintenance Notes

Like many modern diesel engines, the Opel Z17DTH can develop several age-related issues if servicing is neglected. Common concerns include EGR valve carbon build-up, turbocharger wear, intake manifold contamination, and diesel injector faults. Additionally, vehicles used primarily for short journeys may experience diesel particulate filter (DPF) regeneration issues where fitted. Vacuum hose deterioration and glow plug failures can also occur on higher-mileage engines.

Regular maintenance is essential for maximizing reliability and engine lifespan. Therefore, routine oil and filter changes using the correct diesel engine oil, fuel filter replacement, cooling system inspections, and periodic EGR system cleaning are highly recommended. Moreover, allowing the engine to reach operating temperature during longer drives can help maintain optimal performance and reduce carbon build-up.

When properly maintained, the Opel Astra H Z17DTH 1.7L turbo diesel engine delivers excellent fuel economy, dependable performance, and impressive longevity. Contact us today for stock availability, competitive pricing, and nationwide delivery of quality used Opel Z17DTH engines.