The 2.2-liter Mazda R2 diesel engine, with an overhead camshaft, was produced from 1983 to 2007 and installed in many commercial vehicle models under the Mazda, Kia, and Ford brands. After being equipped with the Common Rail system, this power unit received a new designation R2AA. The R-engine lineup also includes the RF and RF-T engines.
| Exact capacity | 2184 cm³ |
| Power system | forklift chambers |
| Engine power | 70 - 79 HP |
| Torque | 138 - 142 nm |
| Engine block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder diameter | 86 mm |
| Piston stroke. | 94 mm |
| Compression ratio | 22.9 |
| Engine features | SOHC |
| Hydraulic compensator. | there is no |
| Timing drive | belt |
| Timing phase adjuster | there is no |
| Turbocharging | there is no |
| What oils to use | 6.5 liters 5W-30 |
| Fuel type | diesel |
| Environmental class | EURO 1/2 |
| Approximate life expectancy | 320 000 HP |
| City | 9.2 litry |
| Route | 6.4 litry |
| Mixed | 7.4 litry |
The weight of the R2 engine is 190 kg (with attachments). The engine number R2 is located at the junction of the block and the cylinder head. All issues with this simple and reliable diesel are associated with high mileage. The weakest point of the unit is considered to be the aluminum cylinder head. Cracks around the pre-chambers form at around 200,000 km, and it is not easy to buy another cylinder head. The timing belt is designed for 60,000 km, and if it breaks, the valves are often bent. Since there are no hydraulic compensators, the valves will need to be adjusted every 100,000 km.
| Bongo III (SS) | 1983 - 1999 |
| Bongo IV (SK) | 1999 - 2007 |
| B-series | 1985 - 1993 |
| E-series | 1983 - 2007 |
The 2.0-liter Mazda RF diesel engine with a pre-combustion chamber was produced from 1983 to 2003 in various variants, both naturally aspirated as RF-N and turbocharged as RF-T. There was also an upgraded version called RF1G for the 323 models and a supercharged RF-CX for the 626. The R-engine lineup also includes the following power units: RF-T and R2.
The 3.3-liter diesel engine Mazda T3-VPTS or Skyactiv-D 3.3 has been produced since 2022 and is installed in the largest and most powerful models, such as the crossover CX-60 or CX-90. There are two versions of this engine: standard and hybrid with a starter-generator. The Skyactiv-D line also includes engines: - S5-DPTS, - S8-DPTS, and - SH-VPTS.
The 1.8-liter Volkswagen 1.8 T AGU engine was produced by the company from 1996 to 2005 and installed in popular models such as Golf IV, the first Octavia, and Audi A3. This transverse engine, alongside the longitudinal AEB, has wide channels in the cylinder head. The EA113-1.8T engine line also includes the following engines: AUQ, AMB, AWC, AWT, and AWM.
The 2.0-liter Nissan SR20VET engine was produced in a Japanese factory from 2001 to 2007 and was only installed in the sporty X-Trail crossover version for the local market. The engine stands out with a unique combination of the NEO VVL phase control system and turbocharging. The SR family also includes engines: SR16VE, SR18DE, SR20DE, SR20DET, and SR20VE.