The earliest of this series of classic TMCC/RS equipped Geeps, six of them, including the 15565, were not equipped with electrocouplers. Below is an article from the old Coil Couplers web site which sets out the differences. As shown in the article, additional features were gradually added to the engines as production continued. The Lionel parts diagram is generic, so it may show things that weren't present on certain models. Note the parts diagram also says Postwar Celebration, which none of the engines shown on the Coil Couplers article were, except the Burlington. There were some additional Geeps of this type produced after the article was published, that were part of the PWC series.
I have the No. 18866 (cab no. 2383) later version of the Milwaukee Geep. It's an improvement over the 15565, because it came with electrocouplers, and also came with diecast pilots and a diecast fuel tank, which gives it added weight. The pilots and fuel tank on the 18565 are plastic. Lionel also had refreshed the mold, so the body details are slightly crisper on the later engines including the 18866, although it's not something a casual observer would notice. Below is a photo of my 18866, with the electocouplers (I added the Milwaukee Road lettering). My no. 2383, like the other five TMCC/RS Geeps I have from this era, runs very well, without any issues at all. Bulletproof engines, with great sounds.
Electrocouplers are very easy to add if a person has one of the six early versions of this engine that came without them. Diecast fuel tanks are also available at Lionel parts if one has an earlier version with a plastic fuel tank (like the OP's 18565) and wants to replace it.
Lionel's Command Equipped Geeps Roll On
Evolution of the Trainmaster Command Geeps
by Clyde Coil
In 1996, LIONEL introduced the first Command equipped Geeps, the 2380 Southern Pacific and the 2380 New York Central. Today's Geeps have evolved in a way that tells a story. One of the stories of today's LIONEL.
A list of released GP-7s and GP-9s with relevant feature information follows.
|Built with Diecast trucks, metal frame, plastic tank and pilots|
Diecast magnetic couplers, directional lighting, magnetraction
Pullmor Powered, Trainmaster and Railsounds equipped
|1996 Lionel Corp.||2380||Southern Pacific||6-18562||Oct-96|| |
|1996 Lionel Corp.||2380||New York Central||6-18563||Nov-96|| |
|1997 Classic-1||2380||Canadian Pacific||6-18564||Jun-97|| |
|1997 Classic-2||2338||Milwaukee Road||6-18565||May-97|| |
|1997 Classic-2||2028||Pennsylvania||6-18567||Jun-97|| |
|Electrocouplers, Crew Talk and Tower Comm introduced|
|1997 Stocking Stuffer||1997||Lionel Centennial||6-18846||Oct-97||finished interior, diecast pilot, no electrocouplers|
|1997 Heritage Fall||2380,2381||Union Pacific||6-11956||Dec-97||Double Lashup with second unit non powered, electrocouplers, no Railsounds|
|1997 Heritage Fall||2397||Union Pacific set||6-11837||Dec-97|| |
|1998 Classic||2380||Chicago Burlington & Quincy||6-18569||Mar-98|| |
|1998 Classic||2398||Custom Series #1||6-18575||Sept-98|| |
|Diecast Fuel Tank introduced|
|1998 Heritage||2380, 2381, 2389||Boston and Maine||6-11843||Sept-98||Triple Lashup with middle unit non powered, electrocouplers, no Railsounds|
|Diecast Pilot introduced|
|1998 Classic-II||2029||Pennsylvania||6-18870||Nov-98|| |
|1998 Classic-II||2383||Milwaukee Road||6-18866||Dec-98|| |
|1999 Preview||5616||Baltimore & Ohio||6-18879||May-99|| |
|1999 Preview|| ||Custom series #2||6-18881||April-99|| |
|Finished Cab interior introduced|
|1999 Heritage||453,454,455||Wabash||6-18872||May-99||Triple Lashup with middle unit non powered, electrocouplers, no Railsounds|
|1999 Classic-I||2328||Burlington||6-18892||May-99||Postwar Celebration Series|
|1999 Classic-III||607,608,609||Florida East Coast||6-28509||April-00||Triple Lashup with non-powered middle unit|
|1999 Classic-III||2924||Sante Fe Merger||6-28502||Oct-99|| |
|Other cataloged items|
|2000 Volume 1||178||Atlantic Coast Line||6-28503||April-00|| |
|2000 Volume 2||1518||Chicago & North Western||6-28517||May-01||includes Cab-1 & Command Base|
|2001 Volume 1||1406||New Haven Command Control Set||6-31905||Nov-01||includes 4 cars, power and track|
|2001 Volume 1||2001||Atomic Energy Commission||6-28527||April-01||Glows in the dark|
|2001 Volume 1||102||Norfolk Southern Service Station Set||6-21789||Sept-01||includes 5 cars|
|2001 Volume 1||2349||Northern Pacific||6-28519||April-01||Postwar Celebration Series|
|2001 Volume 2||4134||Grand Trunk Western||6-28534||(Jan-02)||Archive Collection|
|2002 Volume 1||4601||US Army Transportation Corps||6-28535||(Nov-02)||GP-9m|
|2002 Volume 1||1274||Rock Island||6-28536||July-02|| |
These Geeps tell a story, Lionel is constantly striving to improve the classic designs from the postwar era, and has produced the most innovative and fun versions ever of the Classic Lionel Geep.