Reconditioned Opel Engine

On an Opel engine, the code stamped on the block takes precedence over any other indication

Engine capacity, power output, year of manufacture: none of these criteria alone is sufficient to identify the exact engine you need. With Opel, the same engine capacity can cover several completely unrelated engine families. The 1.6 CDTi is the clearest example: the codes R9M408, R9M409, R9M415, R9M450, R9M452, R9MA4A4, R9MD4D4, R9MMx and B16DTE, B16DTH, B16DTL, B16DTU, D16DTH all exist within this single engine range, depending on the model and the period. Likewise, the 2.0 CDTi groups together the codes A20DT, A20DTH, A20DTJ, A20DTR alongside the codes M9R630 à M9R7M7 — two distinct families, not interchangeable with one another.

Reference points by engine range: the codes that distinguish the blocks

The 1.7 CDTi spans the longest time frame in the range: the codes Z17DT and Z17DTH precede the later generations A17DTC, A17DTE, A17DTJ, A17DTR, A17DTS, found notably on the Astra, Zafira and Meriva. The 1.4 Turbo comes in eight codes (A14NEL, A14NET, B14NEJ, B14NEL, B14NET, B14XFT, D14NEL, D14NET) spread across the Astra, Corsa, Mokka and Meriva — an incorrect code here will result in incompatible mountings or engine management. The 1.9 CDTi (F9Q-670, F9Q-750, F9Q-760, F9Q-762, F9Q-772, F9Q-774, Z19DT, Z19DTH, Z19DTJ) is fitted primarily to the Astra and Zafira over a specific period; the code Z19DTJ, for instance, does not share the same mounting points as the Z19DTH. For the Vivaro and Movano, the 2.3 CDTi (M9T706, M9T708, M9T880, M9T898) and the 3.0 CDTi (ZD3200, ZD3202) are specific to heavy commercial vehicles; these blocks are not shared with the engines used in passenger models.

Models covered and points to note

The range covers thirteen Opel models — Astra, Vivaro, Corsa, Meriva, Mokka, Movano, Insignia, Zafira, Combo, Adam, Crossland, Grandland and Agila — in both petrol and diesel, covering the period 1998–2025. A few cases warrant particular attention: the 1.2 Turbo (code B12XHT / EB2DTS) and the 1.2 PureTech (EB2ADT / HNK) are two different blocks despite sharing the same engine capacity, fitted respectively to the Corsa and Crossland or Grandland. The 1.3 CDTi (B13DTC, Y13DT) is fitted to the Agila and certain first-generation Corsa models; the 2.2 CDTi (G9T-722, Y22DTR) is specific to the Insignia and certain older-generation Vivaro models. All engines in this range are available as reconditioned bare engines on an exchange basis.