John and Kathy Boehm
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Allis-Chalmers Model B and C Parts

This page contains engine parts

These parts are from both Allis Chalmers B and C tractors. Many are interchangeable, but some are specific to on or the other. If you are unsure, ask and I will verify if it will fit your tractor.



Standard bore 3 3/8" sleeves, $30 each; two

3 3/8" flat top aluminum pistons with good used rings, $25 each, one available


3 3/8 " concave top piston, $15 each, two available


Connecting rod, casting # 207459, with end cap, $25 each

Piston pin. $4

Manifold #2, no breaks or repairs, $95 (From a CA)

Set of manifold studs and nuts, $9

AM2917-7 casting number fron an early B; Head with good valves, guides, and seats, The bottom of the front end where the water pipe bolts onto has a well done brazed repair as shown in the last photo. $80, (50 lb shipping weight)


AM2917T casting number; Head that needs valves and grinding, $25 (50 lb shipping weight)

AM2917T casting number; Good head that needs valves reground, $50 (50 lb shipping weight)

Head bolts, $1 each

Valve cover studs, includes the one that is grooved for oil flow, Set of two, $12

Tappet lever, $9 each

Tappet lever shaft, $9

Post for tappet lever shaft, $16 each

Spring for tappet lever shaft, $5 each

Washer for tappet lever shaft, $1 each

Pushrods, 9 13/16 inch overall length, $9 each, eight available


Original Hand crank, $25

Flywheel without a ring gear, $20 (can ship flat rate box)

Housing for rear engine seal, $10

Internal governor assembly for CA, minimal play in weight pins, $50

Arm from CA, $10



Earlier style governor link to carburetor, $15, your choice

Governor link to carburetor, $12

Long throttle rod from a B, $16


Throttle rod, $15

Ratchet plate and throttle rod, $20

Ratchet plate for throttle, $10

Throttle lever, $14

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Front engine cover, $15, your choice

Oil pan, no dents, no rust, $20

Pressed steel Oil pan, $12

Oil pump, tested, good condition, $45

Pipe for oil pick up tube, $3

Oil pick up screen, $25

Oil filter base with filter, $25

Oil filter base with AC oil filter and AC oil pressure gauge (glass is cloudy). $25

Oil filter base with oil line, $25

Oil line at oil filter base, $5

Oil line with special brass tee, $15

Oil pipe to head, $7
Tee $7

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

Valve cover, four bolt holes, $15


Painted valve cover, two bolt holes, $15

Oil dipstick, $6

Oil line (short, small diameter), $5



Fan hub and pulley, adjustable, $16, your choice

Sealing plate for water pump, new, $12.50

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Water pump. turns freely, $15, your choice

Fan similar to the one shown above, $10

Set Screw and jam nut for starter, $12

Instruction for Fairbanks Morse type J magneto, Free via email


Generator bracket, $10

The following parts are for B, C, and CA equipped with distributor:

New point set, $8

New dust cap, $8

DR426 dust cap, $8

6 volt coil, $5