John and Kathy Boehm
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Engine and control Parts for John Deere Model 40 Tractors






M64T standard bore block from a Model 40 tractor but will also fit a Model M tractor, no breaks or repairs, with all internal parts, including M1692T crankshaft, M1766T crankshaft pulley, M1837T standard pistons, M1691T connecting rods, AM3631T camshaft with M49T cam gear, AM228T (sub AM739T) oil pump, flywheel, eing gear clutch disk and clutch pressure plate, and oil pan. $700. Pick up in Woodland, CA or ask for shipping quote via truck freight.




T10966T block for Model 40 (Subs for M64T and AM754T), no breaks or repairs ny visual inspection, includes bayonet oil gauge and main bearing caps, Standard bore with smooth bores (except the top 3/4 inch of one bore), $335, I prefer pick up here or to ship truck freight as it is not possible to properly crate it for UPS Ground shipment

Used head gasket, similar to above, $10

M285T head bolt with washer, $2 each


M1799T manifold #2, looks like it may need a repair at the yellow arrow, $20


Two views of M1195T exhaust pipe to convert to a down (orchard type) exhaust, $75


M1837T Set of standard bore aluminum pistons with piston pins, $100

M1691T Connecting rods with good bushings and used bearings, your choice, $40 each or both $75


M1766T crankshaft pulley #1 or #2 with no breaks or repairs, $40, your choice


M1766T #3 crankshaft pulley with no breaks or repairs, $40

M1692T crankshaft with good used main bearings, $100


M1766T crankshaft pulley with no breaks or repairs, later style without the built in crank jaws, $25


Starter ring gear for M or 40, $45

Flywheel for 40, Can ship UPS, 90 lb., $25

Bolts, flywheel to crankshaft, with lock strip, $5/ set

M3414T (sub for M27T) Cam followers , $8 each or four for $25

Camshaft, $55. Thrust plate, $7.50

M49T Camshaft gear, $35

Valve cover studs (one has the special cut on the threaded area, very nice condition, $12/pair

AM753T External oil tube, $8; Straight fitting, $5, 90 degree fitting, $5


Pushrod, 11 inch long, $16 each or four for $60

Rocker arm assembly, $80

AM274T End caps, $8 each

M76T Spring inside rocker arm shaft, $45

M72T rocker arm shaft, $8

M81T Spring, $5

AM272T or AM273T Rocker arm with adjusting screw, $10 each

AM271T Rocker arm bracket, $10 each

M285T Head bolt, $2 each; set of 7, $10

Carburetor to governor rod, $15

Throttle rod, $10



M1709T governor housing with levers and spring, very good condition, $45, your choice


M273T gear with M1683T weights, minimal play in weight pins and good gear, $85, two available, your choice

M273T gear with one M275T weight, as-is, there is some play in the weight pin, but the gear is very good, $15

L4197T Spring used on both governor housing and throttle linkage, $11


Oil pump screen, great condition, $20

L4121T set screw with M463T cap, $13


OIl pump with M38T pump body, pumps well, $60, your choice

Oil filter, has top plate, but no bottom plate, $25, similar to above

Oil filter base, $10

Flywheel guard, $20

Oil pan, $10

Nice AM669T breather cap with a few small dents, $15

Dented breather caps, usable, similar to above, $8 each

Valve cover, $15

Rear engine seal housing, $10

AM902T Front engine cover, $20

Front engine crankshaft seal cover plate, $9

M1758T throttle lever with spring and special washer, $25 (parts available separately)

M1067T with rods, $20

AM1810T Fan assembly, excellent condition, $95

M1803T Mounting bracket for fan, $12.50

M2946T Lower water pipe, $15

M1520T upper water pipe, $15