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Used Toyota Glow Plug Relays

All used Toyota Glow Plug Relays listed on Breakeryard.com are tested, original (OEM) manufacturer parts and come with a 14 day money back guarantee. Breakeryard.com list cheap new OES or aftermarket car parts at discounted prices and used OEM car parts up to 80% cheaper than main dealer prices for Toyota from premium breaker yards from across the UK.

About Glow Plug Relays

A glow plug is a rod shaped heating element, with an internal heating coil, which can withstand extremes of high temperature. One end of the glow plug has a point which heats up, emitting a glowing light, when fed electricity. Glow plugs are used in a diesel engine instead of a spark plug. The primary function of a glow plug is to produce heat in order to help with the startup process in the engine. Unlike a petrol engine, the fuel that is injected into a diesel engine does not need a spark to ignite it. But when starting a diesel engine in cold conditions, some extra help is required, which is where the glow plugs and glow plug relay come into action.  Glow plugs operate with a glow plug relay which functions to open or close the electrical circuit between the glow plugs and the battery.

The Toyota glow plug relay will be housed in the relay box, usually found underneath the dashboard. The relay connects to the car's battery, as well as connecting to the specific part that the relay is functioning, in this case the glow plugs. The glow plug relay is crucial to the glow plug system. It receives information from the glow plug sensor, which is positioned on the cylinder head, on the heater hose fitting and uses this to determine how long to heat the glow plugs for. The colder the engine, the longer the glow plugs will be supplied with the electrical current to heat them. The glow plug relay basically acts as an ON/OFF voltage control switch, allowing an electric current to flow to the glow plugs, by closing or opening the contacts that provide voltage to them.  The cylinders in the engine are heated up by the glow plugs, when the ignition is turned on, but before the engine is actually started. In modern vehicles the glow plugs are usually automatically switched off by the glow plug relay when the desired heat for engine startup has been reached. If the engine is started prematurely this can cause damage to the glow plugs.

Signs that the glow plug relay may need changing are; an engine that struggles to start or will not start at all. It is always a good idea to consult with your mechanic when engine problems strike, to make sure the correct fault has been identified. When you need to change the glow plug relay, a good quality Toyota glow plug relay will guarantee a part that fits well, performs properly and has a long service life. Relays can fail because of oxidisation, overheating or due to a faulty connection in the relay socket. Faults can occur with the electrical contacts, relay coil and wiring. The connections can overheat and corrode. It is important when replacing the glow plug relay that you buy a part that will be compatible with the make and model of your vehicle. Buying the Toyota glow plug relay will guarantee you get the right component that is designed specifically for the make and model of your car.

Toyota trivia

  • The Toyota Prius is just the latest example of why Toyota is widely considered the greenest company in the car industry. Consistent efforts at improving sustainability and eco-awareness led to them getting voted the number one Global Green Brand back in 2015.
  • As well as their other records, Toyota is known to consistently break sales records as well. It's not just the Corolla either. They have been so successful some years that they outsold Honda and Nissan combined!
  • The company is proud of the fact (and very vocal about it, rightly) that it spends $1million EVERY HOUR on research and development.
  • World-famous magazine the MIT Technology Review repeatedly includes Toyota in its list of the world's 50 smartest companies.
  • The first car company to produce over 10 million cars in a single year (which they did in 2013), Toyota also boasts the record-breaking sales of one Corolla sold every 37 seconds (every 27 seconds in 2013). That made the Corolla the best selling car of all time!