Knucklehead Parts
217 parts
Shop the best parts for your Harley-Davidson Knucklehead motorcycle at Deadbeat Customs. The collection includes engine components, oil system parts, rocker boxes, exhaust components, ignition parts, fuel system components and restoration hardware for 1936-1947 Knucklehead models. Designed for dependable performance and authentic restorations, these parts complement Harley engine parts and vintage motorcycle restoration parts.
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V-Twin - 11-1139 - Cast Iron .004 Oversize Intake/Exhaust Knucklehead Valve
Kibblewhite
MSRP: $40.27$39.47V-Twin - 11-1139 - Cast Iron .004 Oversize Intake/Exhaust Knucklehead ValveDescriptionKnucklehead .004 oversize valve guide features a cast iron construction, as original, with a ground outer...MSRP: $40.27$39.47 -
V-Twin - 11-1138 - Cast Iron .002 Oversize Intake/Exhaust Knucklehead Valve
Kibblewhite
MSRP: $40.27$39.47V-Twin - 11-1138 - Cast Iron .002 Oversize Intake/Exhaust Knucklehead ValveDescriptionKnucklehead .002 oversize valve guide features a cast iron construction, as original, with a ground outer...MSRP: $40.27$39.47 -
V-Twin - 11-0899 - 1936 Pushrod Cover Clip Kit Stainless Steel
Colony Machine
MSRP: $81.15$80.33V-Twin - 11-0899 - 1936 Pushrod Cover Clip Kit Stainless Steel Description Smooth type pushrod cover clip kit features a stainless steel construction, without the lance for removal. Kit includes...MSRP: $81.15$80.33 -
V-Twin - 11-0879 - Knucklehead Rocker Arm Shaft Set
Motorshop
$315.00V-Twin - 11-0879 - Knucklehead Rocker Arm Shaft SetDescriptionKnucklehead rocker arm shaft set features oil galley's milled into each shaft, as required on the 1937 EL models, with the tea cup type...$315.00 -
V-Twin - 11-0790 - Cast Iron Standard Intake/Exhaust Knucklehead Valve Guide - Fits 1936-1940 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$29.79Knucklehead standard cast iron valve guide fits intake and exhaust and accepts valve stem seals.*NOTE: The guide is the same for intake and exhaust. Fits:EL 1936-1940FL 1941-1947Additional Information$29.79 -
V-Twin - 11-0575 - Knucklehead Tappet Block Set - Fits 1936-1940 EL / 1941-1947 FL Harley-Davidson
Motorshop
$330.07V-Twin - 11-0575 - Knucklehead Tappet Block Set Description Knucklehead tappet block set features cast iron constructionOver 500 pairs sold since 1999! Zinc plating may be painted or dulled to look...$330.07 -
V-Twin - 11-0506 - Replica 61 inch Knucklehead Cylinder Set Black
Motorshop
$1,065.81V-Twin - 11-0506 - Replica 61 inch Knucklehead Cylinder Set BlackDescriptionReplica 61" Knucklehead cylinder set features cast iron construction with 4 fins above head bolt line. Original markings...$1,065.81 -
V-Twin - 11-0499 - 74 inch Knucklehead Front Cylinder
Motorshop
$259.78V-Twin - 11-0499 - 74 inch Knucklehead Front CylinderDescriptionFront cylinder fits Knucklehead 1941-1947 74" models. Cylinders are for stock bore, stock stroke and compression.Cylinders must be...$259.78 -
V-Twin - 11-0498 - 74 inch Knucklehead Rear Cylinder
Motorshop
$259.78V-Twin - 11-0498 - 74 inch Knucklehead Rear CylinderDescriptionRear cylinder fits Knucklehead 1941-1947 74" models. Cylinders are for stock bore, stock stroke and compression.Cylinders must be honed...$259.78 -
V-Twin - 11-0495 - 61 inch Knucklehead Front Cylinder
Motorshop
$313.14V-Twin - 11-0495 - 61 inch Knucklehead Front CylinderDescriptionFront cylinder fits Knucklehead 1936-1947 61" models. Cylinders are for stock bore, stock stroke and compression, featuring 5 fins...$313.14 -
V-Twin - 11-0494 - 61 inch Knucklehead Rear Cylinder
Motorshop
$313.14V-Twin - 11-0494 - 61 inch Knucklehead Rear CylinderDescriptionRear cylinder fits Knucklehead 1936-1947 61" models. Cylinders are for stock bore, stock stroke and compression, featuring 5 fins...$313.14 -
V-Twin - 10-8181 - Replica Lightning Cam for Knucklehead
Motorshop
$294.98V-Twin - 10-8181 - Replica Lightning Cam for Knucklehead Description Replica lightning cam for 1936-1947 Knucklehead.Stock .355 lift cam with a 236 duration. Fits: EL 1936-1940 FL...$294.98 -
V-Twin - 10-2965 - Andrews N Grind Cam Knucklehead
Andrews
$266.82V-Twin - 10-2965 - Andrews N Grind Cam Knucklehead Description Andrews N grind cam is a stock replacement cam for Knucklehead models and 61" engines. Cam is excellent to use for stock motors or...$266.82 -
V-Twin - 10-1939 - Replica Knucklehead Cam Cover
Motorshop
$371.69V-Twin - 10-1939 - Replica Knucklehead Cam Cover Description Replica cam cover includes bushings and breather pipe with smooth natural finish. This OEM Replica is cast with exclusive V-Twin molds...$371.69 -
V-Twin - 10-1936 - Replica Cast Cam Cover
Motorshop
$625.53V-Twin - 10-1936 - Replica Cast Cam Cover Description Cast cover is an exact replica of the early 1936 61" EL models, perhaps for the first 200 units made that year. Cover features natural cast...$625.53 -
V-Twin - 10-1748 - 8-Finned Knucklehead Cam Cover Chrome - Fits 1936-1947 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$352.13Forged aluminum 1940 Knucklehead 8-finned cam cover features a chrome finish and includes the "welch" plug installed, as original, in the top and rear. Cam cover also includes OHO oil feed hole...$352.13 -
V-Twin - 10-1645 - 8-Finned Knucklehead Cam Cover Polished - Fits 1936-1947 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$345.97Forged aluminum 1940 Knucklehead 8-finned cam cover features a polished finish and includes the "welch" plug installed, as original, in the top and rear. Cam cover also includes OHO oil feed hole...$345.97 -
V-Twin - 10-1640 - 1937 Knucklehead Head Set
Motortechnic
$5,268.01V-Twin - 10-1640 - 1937 Knucklehead Head SetDescription1937 Knucklehead head set is accurately cast with the original factory markings for the 61" models and features a black finish. The heads...$5,268.01 -
V-Twin - 10-1626 - 8-Finned Knucklehead Cam Cover Cast - Fits 1936-1947 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$310.05Forged aluminum 1940 Knucklehead 8-finned cam cover features a natural cast finish and includes the "welch" plug installed, as original, in the top and rear. Cam cover also includes OHO oil feed hole...$310.05 -
V-Twin - 10-1453 - Knucklehead Cam Chest Kit - Fits 1941-1947 Harley-Davidson FL
V-Twin Mfg
$1,031.73V-Twin Knucklehead cam chest kit is for use when building our replica engines.Kit includes a standard cam chest breather valve gear, a smooth cam cover, oil pump drive gear, cam case pump drive gear,...$1,031.73 -
V-Twin - 10-1209 - Knucklehead Engine Case Set - Fits 1941-1947 Harley-Davidson FL, 1937-1947 EL
V-Twin Mfg
$1,926.772023 New Production motor case set features a blank number boss, there are no serial numbers on the case. Sold with Bill of Sale only. Includes the welch plug, and the right and left case races...$1,926.77 -
V-Twin - 10-1186 - Knucklehead Cast Tab Set - Fits 1936-1947 EL / 1941-1947 FL Harley-Davidson
Motorshop
$97.17V-Twin - 10-1186 - Knucklehead Cast Tab Set Description Knucklehead Rocker Box Mount Tab Replacements include a set of two tabs made in a single mold casting.The tabs must be cut to size, one long...$97.17 -
V-Twin - 10-0945 - Knucklehead 74 inch Engine Case Set Natural
Motortechnic
$4,992.10V-Twin - 10-0945 - Knucklehead 74 inch Engine Case Set NaturalDescription74" motor case for knucklehead motors accurately cast and machined. Features a natural cast finish and a blank number boss...$4,992.10 -
V-Twin - 10-0942 - 1936 61 inch Knucklehead Engine Case Set
Motortechnic
$3,755.65V-Twin - 10-0942 - 1936 61 inch Knucklehead Engine Case SetDescriptionFor 61" Knucklehead motors accurately cast and machined by Motortechnic in Germany. Features a natural cast finish and a blank...$3,755.65 -
V-Twin - 10-0629 - Lightning Cam Chest Assembly Kit Knucklehead
Motorshop
$737.63V-Twin - 10-0629 - Lightning Cam Chest Assembly Kit KnuckleheadDescriptionV-Twin Motor Shop lightning cam chest assembly kit includes internal Big Twin replacement type parts for years listed,...$737.63 -
V-Twin - 10-0498 - Knucklehead Cam Chest Assembly Kit - Fits 1936-1940 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$1,156.78V-Twin Knucklehead cam chest assembly kit includes internal Big Twin replacement type parts for years listed, including a Sifton cam, Replica cam cover and hardware. Fits:EL 1936-1940FL...$1,156.78 -
V-Twin - 10-0349 - Knucklehead Cam Chest Assembly Kit - Fits 1936 Harley-Davidson EL
V-Twin Mfg
$1,306.12V-Twin Knucklehead cam chest assembly kit includes internal Big Twin replacement type parts for years listed, including a Sifton cam, Replica cam cover and hardware. Fits:EL 1936-1936Additional...$1,306.12 -
V-Twin - 10-0065 - 8-Finned Knucklehead Cam Cover Die Cast
Motorshop
$293.36V-Twin - 10-0065 - 8-Finned Knucklehead Cam Cover Die CastDescription8-finned cam cover includes bushings and breather pipe with a stock die cast finish.Cam cover bushings must be checked and fitted...$293.36 -
V-Twin - 51-3647 - Knucklehead Raw Front Engine Mount - Fits 1936-1947 Harley-Davidson EL, 1937-1948 U, 1941-1947 FL
V-Twin Mfg
$332.57Raw front engine mount features detailed forging with DIF numbers, fully machined.Front engine mount is authentically constructed with DIF forge mark and casting marks. Must be assembled by a...$332.57 -
V-Twin - 51-1946 - Replica inchHM inch Knucklehead 30 Rake Frame
V-Twin Mfg
$2,687.51V-Twin - 51-1946 - Replica inchHM inch Knucklehead 30 Rake FrameDescriptionKnucklehead frame is an authentic reproduction of the factory style bull neck frames, with numbered forgings, seat post...$2,687.51 -
V-Twin - 51-1942 - Replica inchHM inch Knucklehead 29 Rake Rigid Frame
V-Twin Mfg
$2,687.51V-Twin - 51-1942 - Replica inchHM inch Knucklehead 29 Rake Rigid FrameDescriptionKnucklehead rigid frame with a 29 rake neck angle is an authentic reproduction of the factory style featuring 12...$2,687.51 -
V-Twin - 51-1041 - Replica Knucklehead 28 Rake Frame - Fits 1938-1940 Harley-Davidson EL
V-Twin Mfg
$2,452.27Replica Knucklehead frame is a reproduction of the factory style frame.Frame includes seat post, brake cross shaft, rear axle assembly, transmission plate and a motor alignment plate pre-installed...$2,452.27 -
V-Twin - 51-0827 - Knucklehead Rigid Rear Frame Section - Fits 1937-1947 Harley-Davidson U, 1936-1947 EL, 1941-1947 FL
V-Twin Mfg
$1,296.82Rigid hardtail frame raw steel rear section is the replica construction with components featuring brazed joints. Forgings do not have factory hallmark numbers.The rear transmission mounts are 2" from...$1,296.82 -
V-Twin - 51-0683 - Knucklehead Rear Top Frame Tube Set - Fits 1936-1947 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$315.00Rear top frame tube set constructed of steel, featuring a raw finish, is for use with Knucklehead frames. Set connects the seat area to the rear axle plates.The front of the tube is channeled to fit...$315.00 -
V-Twin - 51-0594 - Knucklehead Seat Mount - Fits 1936-1947 Harley-Davidson EL
V-Twin Mfg
$593.91V-Twin - 51-0594 - Knucklehead Seat Mount Description Seat mount for Knucklehead models. Fits: EL 1936-1947 Additional Information$593.91 -
V-Twin - 51-0427 - Knucklehead Seat Post Forging - Fits 1936-1947 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$315.00V-Twin - 51-0427 - Knucklehead Seat Post Forging Description Knucklehead seat post is an accurately forged steel part with factory numbers on the underside.NOTE: Stamped with "XE-1 DIF4". ...$315.00 -
V-Twin - 51-0388 - Knucklehead Frame Speedometer Hole Piece - Fits 1936-1947 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$90.99Knucklehead frame speedometer hole piece needs to be welded into place for detailed repair and restoration of frames. Fits:EL 1936-1947FL 1941-1947Additional Information$90.99 -
V-Twin - 40-2102 - Knucklehead Banjo Oil Line Kit Zicad Plated - Fits 1936-1947 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$199.35Banjo oil line kit features a zicad finish. Kit includes banjo y-line, with oiler bolts, brass washers and fittings.Kit gives motor the early look with conversion of banjo line style. *NOTE:...$199.35 -
James Gaskets - JGI-16770-36-C - Copper Head Gasket/Metal Base Gasket - Fits '36-'47 Knucklehead Models
James Gaskets
$54.95James Gaskets - JGI-16770-36-C - Copper Head Gasket/Metal Base Gasket - Fits '36-'47 Knucklehead Models Fits: '36-'47 Knucklehead Models. Full year/model list is on the Fitment tab. Copper Head...$54.95 -
James Gaskets - JGI-36-FLH - Oil Pump Gasket Kit - Fits '36-'47 Knucklehead Models
James Gaskets
$16.95James Gaskets - JGI-36-FLH - Oil Pump Gasket Kit - Fits '36-'47 Knucklehead Models Fits: '36-'47 Knucklehead Models. Full year/model list is on the Fitment tab. Oil Pump Gasket Kit from James...$16.95
Knucklehead Parts Restoration Systems – Classic Engine Components & Replacement Parts
Knucklehead Parts offers quality replacement and restoration components for classic Harley-Davidson Knucklehead motorcycles. The lineup includes engine cases, cylinders, cylinder heads, rocker boxes, cam chest components, valve train parts, oil pumps, oil lines, distributor assemblies and engine hardware built to support reliable rebuilds and period-correct restorations. These products work perfectly with Harley engine parts, motorcycle gaskets, ignition components and motorcycle oil system parts.
The product range also includes exhaust systems, air cleaners, carburetor components, fuel tanks, frame parts, manuals, restoration hardware and vintage accessories for 1936-1947 Knucklehead models. Whether you're replacing worn components or completing a full restoration, Knucklehead Parts provides dependable solutions that pair with motorcycle exhaust systems, motorcycle carburetors, motorcycle fuel system parts, motorcycle engine rebuild kits and vintage Harley parts.
Shop Knucklehead Parts at Deadbeat Customs for premium parts that help keep classic Harley-Davidson motorcycles running and looking their best. Complete your project with Harley replacement parts, classic motorcycle parts, motorcycle engine components, motorcycle restoration hardware and vintage Harley accessories.