Welcome to K-Jet.org, the web site dedicated to Volvo automobiles with Bosch K-Jetronic fuel injection systems. This site focuses mainly on Volvo 240-series automobiles manufactured from 1976 to 1985 and the B21F and B21FT motors. These are some of the most common K-Jet-powered cars in the United States and are also the cars that I own and am most familiar with.

That’s not to say, however, that owners of other Volvo automobiles won’t find something useful on this site.  In fact, I no longer own any K-Jet-powered cars today.

Although they are not thoroughly discussed on this web site, the Bosch K-Jet system was also mated to many other Volvo motors, such as the B19E, B20F, B21E, B21ET, B23E, B200E, B230E, and the B27F and B28F 6-Cylinder motors. It can be found on various Volvo models (as well as other makes, such as Volkswagen, Audi and Mercedes) from the mid 1970s to the early 1990s throughout the world. The Volvo B21F was used in 240-series cars from 1976 until it was discontinued in the USA in 1982. Some cars made that year had a B21F with the Bosch LH-Jetronic 1.0 EFI system, while others had the familiar K-Jet.

From 1983 on, most Volvo 240’s in the United States (excluding the 240 Turbos which still had the K-Jet-powered B21FT through the end of their production) were equipped with Bosch LH-Jetronic, an electronically controlled, pulsed fuel injection system mated to a non-B21 series motor, such as the B23 and B230 series.

Most “E-Series” motors (B19E/B21E/B23E/B23ET/B200E/B230E) had K-Jet fuel injection systems until 1986 or even later, but were never shipped to the United States market, as they have higher compression ratios and lacked the proper emissions controls to comply with US laws. These motors can be found throughout Europe, Canada, Australia and elsewhere.

In 1985, the Volvo 240 Turbo was discontinued in the United States , and turbocharged motors were only available in the 700 series automobiles. Nonetheless, the B21F had a good run from 1976 to 1982, and the B21FT from 1981 to 1985. Most Volvo’s in the United States that fall within these years have one of these motors, excluding the Diesel and 6-Cylinder models (badged ‘Diesel’ and 262/264/265, respectively).

K-Jet.org was first founded March 24th, 2005 as a composite of several other pages which were first published in May of 2003.



K-Jet.org is a non-profit auto-enthusiast web site. Company names, products, logos, brands, and other trademarks featured or referred to within this web site and its content (downloadable documents etc.) are the property of their respective trademark holders. These trademark holders are not affiliated with K-Jet.org and do not sponsor or endorse this web site. All material generated by the site’s author is Copyright © 2010. All Rights Reserved.

Opinions expressed within K-Jet.org are those of the webmaster / administrator of the site and/or, in the case of comments to posts, its guests, and are not necessarily those of any other parties, including, but not limited to, the site’s hosting company and any company or person mentioned on this site (as described above).

Information provided within K-Jet.org in any form is strictly available for research and educational purposes ONLY. The best efforts have been made to ensure its accuracy, but no one should rely on information presented on this web site for any reason. Anything you decide to do to yourself, your car, or your property is your own decision, and you are doing so at your own risk. Maintaining your own automobile carries with it the risk of injury and/or death. No matter what you are doing, always use the proper safety equipment, exercise caution, and do not attempt any task if you are unsure of what you are doing or lack the proper safety equipment.

In short, neither the author of this web site nor anyone else makes or implies any guarantees whatsoever. Good luck in your research!


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