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Deere stopped reselling Stanadyne fuel injection parts 20 years ago. The Deere #s would of been - 2 of T11290 shaft-seals(for pump driveshaft), and for the throttle shaft - 2 of T11915 orings and 2 of T15720 teflon washers. The part # T11927 you mention has nothing to do with any of this. It is a hard metal part that never wears out. Even back 20 years ago, those parts would not be ordered separately. You could buy the entire seal kit for that pump with all o-rings, washers, and seals for less then $20. You can still buy the kit for less then $20. www.usdiesel.com US Diesel in Fort Worth Texas is a dealer and will ship and sell to anyone.
800-328-0037. JDB seal kit - Stanadyne OEM # 24371 - Spaco # U24371 $12.10 last year, but probably went up a little. You are going to need the injection pump manual, unless you're a lot smarter then I am. As to errors in the IT manual? I don't know since I only have the factory manual for 1010s-2010s. I've never gone wrong yet though, with the ITs. I have just about every one ever printed EXCEPT for the 1010/2010 series. To remove pump: Remove timing window. Rotate engine (by hand) counter-clockwise
as viewed from the flywheel end of engine. Do so until the two timing marks inside the
window-hole are lined up. Turn off fuel, unhook all lines, linkage and pump mounting nuts. Then slide pump away
from engine. To install pump: Turn pump driveshaft, if needed until the two timing marks in the
window hole are lined up. Make sure engine is on top-dead-center (TDC) of compression
stroke for #1 cylinder. Install pump. Turn engine over in reverse rotation (clockwise as
viewed from flywheel end), and then back counter-clockwise until pump timing marks are
in line again. Verify engine is at TDC. Note, this process eliminates timing gear backlash
for checking static timing. Tighten pump mounting nuts. When installing injection lines to
the pump with new steel washers, if the banjo-bolts are black, torque to 420 inch-pounds.
If they are cadmium plated, torque to 295 inch-pounds. When viewing the injection pump
from the outlet end, firing order is 1-3-4-2 moving from the #1 port that is marked. After the engine is running, depending on specific pump model, load advance or speed
advance can be checked with a plastic timing window, if needed.
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