Made in Germany. Application: Fits all 4 cylinder 240D diesel engines from 1980 to 1983 with pencil glow plugs. Excellent quality. They are built with the same materials and have the same specifications as the Bosch Duraterm pencil plugs. Even comes with 4 high quality locking nuts for the wires. Don't go by year only as someone could have installed an older engine in your 240D!!!
SVO WVO: If you are running SVO WVO fuel we have found that glow plugs may not last as long compared to running diesel fuel. The tips and chambers tend to coke up faster. Super important that you ream your glow plug chambers more often. These Monark plugs concentrate the heat more toward the tip and which keeps the glow plug ends cleaner.
Specifications: These Monark glow plugs are designed to be used with the original standard glow relay as well as the newer Monark upgrade pre-glow relays that use rapid pre-heating time and and prolonged post-heating for up to 180 seconds at an average voltage up to 14V. Their twin heating coil design allows for the best performance under these two conditions. They meet or exceed the specifications of the Bosch Duraterm and are still manufactured in Germany.
Here is what one of our customers said about his new Monarks: "I put in the new Monark glow plugs a couple weeks ago and, WOW, what a difference!!! I can't believe how quickly and smoothly my 1981 240D starts now - in COLD weather!!! I am so impressed with the Monark plugs, that I am contemplating purchasing the Monark injector nozzles from you as well." George J. Chicago
How to view the PDF digital instructions:
Once you complete the purchase of this product you will be able to download the digital instructions immediately when you are logged in and on your personal account page (click on My Account). Any PDFs will show up under My PDF Manuals. You will be allowed three downloads, so please save the file on your machine for backup.
Kent highly recommends:
Mercedes Anti-Seize Compound for Use on Critical Threads
You don't need much - sold here in small air tight container
Anti-seize compound is an amazing product that can prevent frustrating and damaging thread seizure. Good quality copper based anti-seize is not particularly cheap and when you buy it in a larger tube or container it may take years to use it all... in fact you may never use it all. Since you only need a very small film on the threads the average DIY mechanic does not need very much on hand. We offer it in a air tight seal 1/2 ounce clear container with a screw lid and we only fill it half full! You may even find 1/4 ounce ends up being a lot!.