Tire (US) Tyre (UK)

A tire (American English) or tyre (British English) is a ring-shaped vehicle component that covers the wheel's rim to protect it and enable better vehicle performance.

Technical Service Bulletin TSB

Technical Service Bulletins, or TSBs, are recommended procedures for repairing vehicles.

Torsion bar

A torsion bar suspension, also known as a torsion spring suspension (but not to be confused with torsion beam rear suspension), is a general term for any vehicle suspension that uses a torsion bar as its main weight bearing spring.

Panhard rod

A Panhard rod (also called Panhard bar or track bar) is a suspension link that provides lateral location of the axle. 

Anti roll bar

An anti-roll bar (anti-sway bar, sway bar, stabilizer bar) is a part of many automobile suspensions that helps reduce the body roll of a vehicle during fast cornering or over road irregularities.

Selective catalytic reduction SCR

Selective catalytic reduction (SCR) is a means of converting nitrogen oxides, also referred to as NO x with the aid of acatalyst into diatomic nitrogen (N2) , and water (H2O).

Salvage title

In North America, a salvage title is a form of vehicle title branding, which notes that the vehicle has been damaged and/or deemed a total loss by an insurance company that paid a claim on it.

Overhead Camshaft

Overhead camshaft, commonly abbreviated to OHC, is a valvetrain configuration which places the camshaft of an internal combustion engine of the reciprocating type within the cylinder heads ('above' the pistons and combustion chambers) and drives the valves or lifters in a more direct manner compared to overhead valves (OHV) and pushrods.

Revs Per Minute RPM

Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min) is a measure of the frequency of rotation, specifically the number of rotations around a fixed axis in one minute.

Torque Steer

Torque steering is the influence of engine torque on the steering, especially in front-wheel drive vehicles with transversely mounted engines.