General Engine Design Information 23 Engine Overview, VHD D12D (Volvo V-Pulse) Right Hand View W2004344 1. EPG Air Supply Line 2. EGR Pipes 3. Wiring Harness Rail 4. EGR Cooler 5. Vibration Damper 6. Reed Valve Housing 7. Mixing Chamber 8. Pre-Heater (Optional) 9. EGR Valves 1 and 2 10. Shutter Housing 11. Block Heater 12. Air Compressor 13. Oil Filter Bypass 14. Oil Filter Full flow 15. Coolant Filter