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Engine and control Parts for John Deere Model 40 Tractors

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M64T block from a 40T, magnaflux test by my machinist was good, standard bore, smooth bores, no breaks or repairs, $350, pick up here or I can give you a truck freight quote

 

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M1768T Head #1, This came from the running engine shown in the video below. After removal, it was magnaflux tested good and the valves and seats were reground. It is definitely ready to go back to work on your tractor! $375

To view the running engine before disassembly, here is a video:

 

Used head gasket, similar to above, $10

M285T head bolt with washer, $2 each

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M1799T manifold #4, good condition, no breaks, burned out spots, or repairs, came from a running tractor, $75

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M1799T manifold #3, good condition, no breaks, burned out spots, or repairs, $75

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

4 inch standard aluminum piston with rings, tops have some corrosion, sides are good, one set of rings is loose, the other set is not, $25/pair as-is

M1691T connecting rod with good used bearings and bushings, $35 each

M29T connecting rod, good condition, $25

M1692T Crankshaft #1 with used bearings and good crankshaft gear, $75

M450T Good crankshaft #4 in very good condition, includes crankshaft gear, includes good used main bearings, $60 (45 lb)

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M450T Good crankshaft #1 in very good condition, includes crankshaft gear, includes good used main bearings, $60 (45 lb)

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M450T Good crankshaft #2 in very good condition, includes crankshaft gear, includes good used main bearings, $60 (45 lb)

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

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

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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

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, $70

AM274T End caps, $9 each

M76T Spring inside rocker arm shaft, $20

M72T rocker arm shaft, $8

M81T Spring, $5

AM272T or AM273T Rocker arm with adjusting screw, $12 each

AM271T Rocker arm bracket, $8 each

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

Carburetor to governor rod, $15

Throttle rod, $10

M273T gear with M1683T weights, minimal play in weight pins and good gear, $85

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

M1709T Governor housing and associated parts, $20

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

 

Oil pump screen, great condition, $20

 

Oil pump with M38T pump body, pumps well, screen needs repair, $75

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

Oil Pump set screw and cap $6


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

Oil filter base, $10

Flywheel guard, $20

Oil pan, $10

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Nice Oil filler/Breather cap similar to above, may have some small dents, $12.50

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

Choke cable for M/40/420/430: $9

M1803T Mounting bracket for fan, $12.50

M2946T Lower water pipe, $15

M265T water tube (not an original Deere part), $8

M1520T upper water pipe, $15