undertray
Vehicle's belly guard
An undertray is a protective panel fitted beneath a vehicle, shielding the engine, transmission, or other components from road debris, water, and damage.
Also called an underbody tray or belly pan, it typically improves aerodynamics while guarding mechanical parts: The undertray cracked when I bottomed out on a speed bump.
Movement of atmosphere
- downforceAir pressing vehicle earthward
- dragResistance through fluid
- ground effectIncreased lift near surfaces
- diffuserDevice that scatters evenly
streamline · turbulence · slipstream · wind resistance · laminar flow · turbulent flow · vortex · air dam
Panel concealing motor compartment
- heat shieldBarrier against extreme temperatures
- carbon fiberReinforced polymer composite
- fastenersDevices joining materials
- access panelRemovable cover for maintenance
Structural support base
- subframeSupporting frame beneath another
- engine mountFastening for powerplant
- suspensionTemporary halt or exclusion
- oil panCrankcase's bottom reservoir
exhaust system · fuel tank · brake lines · transmission · drivetrain · crossmember · control arm · catalytic converter
Undercarriage protective panel
- road saltHighway ice preventer
- mud guardWheel-mounted splash deflector
- pothole damageVehicle injury from pavement gaps
- rust preventionStopping oxidation of metal
Formal assessment of condition
- removalAct of taking away
- installationProcess of putting in
- cleaningRemoving dirt and mess
- replacementWhat takes another's place
crack repair · damage assessment · pressure washing · reattachment · alignment
airflow
Movement of atmosphere
- downforceAir pressing vehicle earthward
- dragResistance through fluid
- ground effectIncreased lift near surfaces
diffuser · streamline · turbulence · slipstream · wind resistance · laminar flow · turbulent flow · vortex · air dam
engine cover
Panel concealing motor compartment
- heat shieldBarrier against extreme temperatures
- carbon fiberReinforced polymer composite
- fastenersDevices joining materials
chassis
Structural support base
- subframeSupporting frame beneath another
- engine mountFastening for powerplant
- suspensionTemporary halt or exclusion
oil pan · exhaust system · fuel tank · brake lines · transmission · drivetrain · crossmember · control arm · catalytic converter · driveshaft
skid plate
Undercarriage protective panel
- road saltHighway ice preventer
- mud guardWheel-mounted splash deflector
- pothole damageVehicle injury from pavement gaps
inspection
Formal assessment of condition
- removalAct of taking away
- installationProcess of putting in
- cleaningRemoving dirt and mess
replacement · crack repair · damage assessment · pressure washing · reattachment · alignment