Knucklehead Engine

New and used Harley Davidson Knucklehead engines for sale by individuals, parts suppliers, and dealers.

Clicking on the links below will open a detailed description of the Knucklehead engine in a new window on eBay.

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OEM 1940 1947 Date Match Big Port Head Knucklehead Harley Engine UL Panhead 420
OEM 1940 1947 Date Match Big Port Head Knucklehead Harley Engine UL Panhead 420
$2,995.00
Buy It Now for only: $2,995.00
Engine Motor Bare Cylinder Head Set Pair 38 39 Harley Knucklehead EL Big Twin 45
Engine Motor Bare Cylinder Head Set Pair 38 39 Harley Knucklehead EL Big Twin 45
$2,602.30
Buy It Now for only: $2,602.30
S&S CYCLE KNUCKLEHEAD HD ENGINE KN74 Gen
S&S CYCLE KNUCKLEHEAD HD ENGINE KN74 Gen
$9,645.99
Buy It Now for only: $9,645.99
S&S CYCLE KNUCKLEHEAD HD ENGINE KN93 Gen
S&S CYCLE KNUCKLEHEAD HD ENGINE KN93 Gen
$9,764.99
Buy It Now for only: $9,764.99
S&S CYCLE KNUCKLEHEAD HD ENGINE KN93 Alt/Gen
S&S CYCLE KNUCKLEHEAD HD ENGINE KN93 Alt/Gen
$9,974.99
Buy It Now for only: $9,974.99
Complete S&S 93
Complete S&S 93" KN93 Series Alternator Generator Style Knucklehead Motor Engine
$9,849.94
Buy It Now for only: $9,849.94
FREE FREIGHT! S&S CYCLE 310 0025 KN74
FREE FREIGHT! S&S CYCLE 310 0025 KN74" Knucklehead ENGINE '36 99 HARLEY DAVIDSON
$9,645.93
Buy It Now for only: $9,645.93
FREE FREIGHT S&S CYCLE 106 2161 KN93
FREE FREIGHT S&S CYCLE 106 2161 KN93" Knucklehead ENGINE 1936 47 HARLEY DAVIDSON
$9,764.93
Buy It Now for only: $9,764.93
FREE FREIGHT S&S CYCLE 106 2560 KN93
FREE FREIGHT S&S CYCLE 106 2560 KN93" Knucklehead ENGINE 1970 99 HARLEY DAVIDSON
$9,974.93
Buy It Now for only: $9,974.93
FLATSIDE SHOVELHEAD 74
FLATSIDE SHOVELHEAD 74" MOTOR ENGINE RIGID 80 PANHEAD KNUCKLEHEAD PICKUP ONLY
$5,495.50
Buy It Now for only: $5,495.50

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