Diesel Glow Plugs
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- Bosch®Glow PlugGlow Plug by Bosch®. Bosch Glow Plugs are critical for starting up a diesel engine. The pre-heat, starting and post-glow phases of a glow plug’s operation affect not only the start-up function, but the vehicle’s overall performance...Engineered for superior cold-start performanceRegulating coil controls current draw for rapid heat-up of the heating coil$8.39 - $109.21
- ACDelco®Genuine GM Parts™ Glow PlugGenuine GM Parts™ Glow Plug by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$8.15 - $50.72
- NGK®Glow PlugGlow Plug by NGK®. Get the most out of your diesel engine by installing these glow plugs by NGK. Manufactured using advanced technologies, the products ensure proper pre-heating of the engine block for easier cold engine start and...Ensure fast warm-up for better cold-startingReduced smoke emission on start-up$6.66 - $49.33
- Motorcraft®Glow PlugGlow Plug by Motorcraft®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$7.51 - $53.55
- Bremi®Glow PlugGlow Plug by Bremi®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even better...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$4.67 - $26.83
- Standard®Diesel Glow PlugDiesel Glow Plug by Standard®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$10.61 - $87.50
- Standard®Intermotor™ Diesel Glow PlugIntermotor™ Diesel Glow Plug by Standard®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$8.13 - $90.12
- ACDelco®Gold Glow PlugGold Glow Plug by ACDelco®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$11.52 - $19.74
- ACDelco®Professional™ Glow PlugProfessional™ Glow Plug by ACDelco®. Specially designed to give diesel engines the heat they need for cold starts, these ACDelco Professional Glow Plugs will maintain ignition in all cylinders, improving throttle response and reducing...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$11.41
- Mopar®Diesel Glow PlugDiesel Glow Plug by Mopar®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even...Designed to exact OEM specificationsMade from high-strength materials$9.92 - $205.23
- Champion®Spark Plugs Diesel Glow PlugsSpark Plugs Diesel Glow Plugs by Champion®. Designed, manufactured, and tested to OE standards and specifications, these glow plugs are what you need to ensure dependable cold-start performance. Manufactured using long post-heating...Specially engineered and designed for fast diesel engine startupProvide reliable cold-start performance$12.55
- DIY Solutions®Diesel Glow PlugDiesel Glow Plug by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When it comes to quality, reliability...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$29.67 - $250.85$31.57 - $255.97Save up to 9%
- Genuine®Diesel Glow PlugDiesel Glow Plug by Genuine®. If your engine ignition parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. On CarID...Designed to restore your vehicle’s engine cooling systemGenuine OE replacement parts from the OE manufacturer$28.54 - $54.41
- Autolite®Diesel Glow PlugDiesel Glow Plug by Autolite®. These products are specially designed to start diesel engines providing reliable performance for long-lasting service life. They are the ideal replacement parts when you need to get your engine started in...Designed to exact OEM specificationsMade from high-strength materials$6.73 - $15.05
- SMP®Diesel Glow PlugDiesel Glow Plug by SMP®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$14.25
- Beck Arnley®Diesel Glow PlugDiesel Glow Plug by Beck Arnley®. Designed utilizing the latest technology, this product by Beck Arnley features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet...OE quality products from top original equipmentTop quality materials$8.05 - $27.31
- Beru®Type GE/GN Diesel Glow PlugType GE/GN Diesel Glow Plug by Beru®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$8.64 - $161.51
- Original Equipment®Diesel Glow PlugDiesel Glow Plug by Original Equipment®. Looking for high-quality replacement parts to restore the performance of your vehicle? Then Original Equipment automotive parts are for you. They are manufactured from the finest materials...Perfect replacement for your damaged or worn out original partMade using high-grade materials for long-lasting dependability$20.06 - $86.59
- Meyle®Diesel Glow PlugDiesel Glow Plug by Meyle®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$5.25 - $215.23
- Vemo®Diesel Glow PlugDiesel Glow Plug by Vemo®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$9.71 - $282.61
- Ford OEDiesel Glow Plug Controller Nut (W707137S440)Diesel Glow Plug Controller Nut (W707137S440) by Ford OE. If you want to keep your Ford performing the way it did when it left the factory, rely on Ford OE products. Manufactured to strict specifications for fit, form, and function, they...Genuine OEM Ford part made to fit your vehicle perfectlyDesigned to restore OEM performance for a safe ride$2.24
- Ram OEDiesel Glow Plug (68576776AA)Diesel Glow Plug (68576776AA) by Ram OE. Want to be sure that your prized possession will operate the way it was designed to and that the repair will be done right the first time? Then RAM OE parts and accessories are right up your...Genuine RAM OEM part designed to fit your specific vehicle perfectlyCrafted from premium-grade materials to ensure superior quality$21.50
- Ram OEDiesel Glow Plug (68490011AA)Diesel Glow Plug (68490011AA) by Ram OE. Want to be sure that your prized possession will operate the way it was designed to and that the repair will be done right the first time? Then RAM OE parts and accessories are right up your...Genuine RAM OEM part designed to fit your specific vehicle perfectlyCrafted from premium-grade materials to ensure superior quality$70.68
- Ram OEDiesel Glow Plug (68460484AB)Diesel Glow Plug (68460484AB) by Ram OE. Want to be sure that your prized possession will operate the way it was designed to and that the repair will be done right the first time? Then RAM OE parts and accessories are right up your...Genuine RAM OEM part designed to fit your specific vehicle perfectlyCrafted from premium-grade materials to ensure superior quality$85.05
- Ram OEDiesel Glow Plug Controller (68282916AA)Diesel Glow Plug Controller (68282916AA) by Ram OE. Want to be sure that your prized possession will operate the way it was designed to and that the repair will be done right the first time? Then RAM OE parts and accessories are right up...Genuine RAM OEM part designed to fit your specific vehicle perfectlyCrafted from premium-grade materials to ensure superior quality$130.44
- Dodge OEDiesel Glow Plug (68102087AA)Diesel Glow Plug (68102087AA) by Dodge OE. If you want to ensure peak performance of your Dodge mile after mile and keep it looking brand new, rely on superior-quality Dodge OE parts and accessories. They match the parts and accessories...Genuine Dodge OEM part designed for your make, model, and yearCrafted from premium-quality materials for long-lasting service$57.60
- Dodge OEDiesel Glow Plug (5080047AB)Diesel Glow Plug (5080047AB) by Dodge OE. If you want to ensure peak performance of your Dodge mile after mile and keep it looking brand new, rely on superior-quality Dodge OE parts and accessories. They match the parts and accessories...Genuine Dodge OEM part designed for your make, model, and yearCrafted from premium-quality materials for long-lasting service$53.40
- Ford OEDiesel Glow Plug (MC3Z12A342F)Diesel Glow Plug (MC3Z12A342F) by Ford OE. If you want to keep your Ford performing the way it did when it left the factory, rely on Ford OE products. Manufactured to strict specifications for fit, form, and function, they not only help...Genuine OEM Ford part made to fit your vehicle perfectlyDesigned to restore OEM performance for a safe ride$17.39
- Ford OEDiesel Glow Plug (4C3Z12A342A)Diesel Glow Plug (4C3Z12A342A) by Ford OE. If you want to keep your Ford performing the way it did when it left the factory, rely on Ford OE products. Manufactured to strict specifications for fit, form, and function, they not only help...Genuine OEM Ford part made to fit your vehicle perfectlyDesigned to restore OEM performance for a safe ride$27.64
- Ford OEDiesel Glow Plug (3C3Z12A342A)Diesel Glow Plug (3C3Z12A342A) by Ford OE. If you want to keep your Ford performing the way it did when it left the factory, rely on Ford OE products. Manufactured to strict specifications for fit, form, and function, they not only help...Genuine OEM Ford part made to fit your vehicle perfectlyDesigned to restore OEM performance for a safe ride$29.35
Because the air in the cylinders of a diesel engine must get very hot for the fuel to ignite, a diesel can be difficult to start when ambient temperatures are extremely cold. Not only is the intake air cold, but the cold metal of the engine can absorb the heat of compression, preventing ignition. To aid cold starting, many diesel engines have glow plugs threaded into the combustion chamber or pre-chambers. As the name suggests, glow plugs contain a heating element that gets so hot it glows when current is applied. Operation varies according to vehicle, but in general the glow plugs should operate for a period of time when the engine is cold, to heat the air and ignite the incoming fuel.
Gas engines are called spark ignition engines, because they rely on a spark provided by the ignition system to ignite the air/fuel mixture in the combustion chamber. Combustion in a diesel engine, which is called a compression ignition engine, is initiated when atomized fuel is injected into highly compressed hot air in the combustion chamber or a pre-chamber. To raise the temperature of the air in the cylinder to the diesel fuel’s self-ignition temperature, diesel engines have much higher compression ratios than gas engines, typically 17-25:1. Reaching self-ignition temperature is easy for initial starting at warmer ambient temperatures or when a warm engine is restarted, but when it’s very cold outside starting aid is needed to get a diesel engine running.
There are a variety of ways to add some warmth to a diesel engine vehicle and make it less difficult to start on a frosty morning. A block heater is typically installed in place of a freeze plug. It has a heating element, which is connected by a cord to house current, that projects into the coolant. Block heaters warm the coolant and also raise the temperature of the engine oil. Engine oil can also be heated with a dipstick heater, which directly heats the oil in a similar manner. Cold oil is more viscous, which makes cranking difficult. Cold weather adversely affects car batteries, slowing internal chemical processes and reducing their cranking capability. Keeping the battery warm with a battery warmer will help the battery function normally and deliver the current needed to turn over the engine and supply power to the glow plugs. A battery warmer wraps around the battery and is also 120-volt powered.
Some diesel engines have a grid heating element in the air intake to heat air entering the engine and aid cold starting, but glow plugs are a more common way of introducing heat into the cylinders of a cold diesel engine. Glow plugs are pencil-shaped electrical devices that are powered by the vehicle’s battery. They are threaded into each cylinders’ pre-chambers on indirect injected diesel engines or into the combustion chambers on direct injected engines. When the ignition key is turned to the on position, a light will illuminate on the dash indicating the glow plugs are heating up. On modern diesel engines, glow plugs generally require a period of seconds to reach their normal operating temperature, then the light will go out and the engine can be started. The glow plugs will raise the temperature in the combustion chambers sufficient for the diesel fuel to ignite when injected. On some vehicles the glow plugs will continue to operate after the engine has started to improve combustion efficiency and reduce emissions.
Glow plug operation is governed by a glow plug control module using input from the engine control computer. When the ignition key is turned on, the module establishes the amount of current and glow plug on-time duration, then activates the glow plugs via a glow plug relay. The control module also determines the length of time the glow plugs should continue to operate after the engine starts in order to achieve complete combustion with minimal emissions.
Since glow plugs are essential for cold starting on many diesel engines, an engine that is difficult to start, starts but smokes and runs rough, or fails to start, may indicate defective glow plugs. A defective control module can result in current being applied to the glow plugs for an excessive time period, raising their temperature to a point where they overheat and fail. To test a glow plug, connect a 12-volt test light between the glow plug terminal and the positive terminal of the battery. If the test light doesn’t illuminate, the glow plug is defective. Glow plug integrity can also be determined by measuring resistance and current draw.
No matter whether you’re working on a diesel engine car or truck, or an import or domestic vehicle, if you’re experiencing starting problems, we have the replacement glow plugs and related components to restore easy starting in cold weather, and optimal cold weather engine performance with minimal emissions. We offer components that are manufactured to original equipment specifications, so when repairs are completed you can count on the performance your vehicle was designed to deliver.