John and Kathy Boehm
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Engine parts for Hercules NXB engines can be found here


Manifold studs, $2 each

1 1/2 rain cap to fit muffler, $9

Exhaust elbow and pipe with working spark arrestor and rain cap, $70

L/LA exhaust elbow, one broken ear, clean it up and braze an AC B muffler onto it to duplicate the original muffler assembly, as-is, $10

L4234T head for LA and LUC, no breaks or repairs, $25



Two views of L4106T head for L, $40, your choice

AL2652T Usable used head gasket, $10 each

Head bolts, $0.75 each

AL2285R Starting crank with pin, nice and original, $60

L4118T #2 pulley for L only with JD engine, teeth show some wear, hole for mounting pin is enlarged, $40


Orange painted L4240T pulley no breaks or repairs, excellent teeth, $75


- #2



Crankshaft pulley for JD LA/LUC engine (not for Hercules engine),
#1, teeth show some wear, no breaks or repairs, $70
#2, teeth show no wear at all, bolt is broken off in one puller hole, $70
Pressed steel pulley, $15 each, your choice
#3, worn teeth, $45
#6, fair original teeth, has been brazed on both sides, $20
NOTE: Casting # L4240T is the same as catalog part # AL2876T
NOTE: The L with JD engine has a different pulley

3 1/4 standard pistons for L $30 for one

Nice matched pair of 3 1/4 L pistons, standard bore, AL2347T, $60 for the pair

Standard bore pistons, similar to above, includes piston pin, $20 each

Connecting rod for L or LA, used bearings with nice bearing surfaces, $36 one only available

Connecting rod for L or LA, used bearings bearing surfaces may be slightly scored, as is, $13 each

AL2699T Good Crankshaft, $35 (Can ship inexpensively in a flat rate box)


L4115T Front oil seal plate, $5

AM1597T Clutch pilot bushing with retainer, $10

NOS AM1597T Clutch pilot bushing with retainer in original packaging, $20

L587T Ferrule, fuel inlet line, $2

Set Screw and jam nut for starter, $15


Rear engine seal housing, with used seal, $5

Camshaft and gear, $25

L803T Idler shaft thrust washer, $5 each

Idler shaft with gear, $20

Oil pump, $25
Oil pump screen, $20
Oil line, $8

NOS L820T new oil pump drive gear, $10


Cap, spring, and piston for oil pressure relief valve, $30

AT14098T Used dipstick, good condition, $5

Valve cover, $8

AL2675T Valve lifters, $5 each
Good used exhaust valves, none available at this time; Good used intake valves, $5 each; Springs $1 each; keeper rings, $1 each, Pins, $1 each

L/LA valve guide, new, $8

Oil pan similar to above, $10

Flywheel cover similar to above, $15

Front engine mounting bracket, $15

Spark plug wire holder, $15

Internal parts for governor as shown: $10

Governor housing and attached parts: $14

L4197T, $11

Rod from carb to governor, $15

L4252T bracket, $10

Bolt with 14H377 jam nut, $1

L4311T, Control cable clip, $9

L4294T, Control cable clamp, $7

L602T, Spring on throttle rod at ratchet plate, $20


AL2784T Throttle rod with ratchet (two views), $50

L4248T Throttle plate without spring, $4


L4248T Throttle rod plate with spring, $24, your choice


AM669T Dented breather caps, usable, similar to above, $8 each

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

New breather cap, $10

AL2726T Breather/Oil filler tube $5

Oil pipes to oil gauge, $8

25H125 Grooved and taped pin for crankshaft pulley, new, $2 each


Fan assemblies with very good bushings, similar to above, Ready to use, $75

- -

Good fan blades, $15 each, similar to above

AL2663T Engine front cover plate, $9

LA/LA/LI clutch pressure plate, $20
LA/L/LI clutch disk, $20

L4613T Expansion plug for engine block, $10

NOS L4128T Dowel pin used on front of engine block, $5


LA engine #1, 3 1/2 standard bore, all internal parts plus flywheel, clutch disk, and pressure plate included, engine turns over freely and bore looks good, but you will probably want to disassemble it and clean up the valves and install new piston rings, $150 and I can ship truck freight



LA engine 3 1/2 standard bore, all internal parts plus crankshaft pulley, clutch disk, and pressure plate included, engine is stuck, but bore looks good, $60