Cylinder Heads
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V-Twin - 49-0276 - Long Headbolt
V-Twin Mfg
$19.66V-Twin - 49-0276 - Long HeadboltDescriptionLong headbolt for side valve models Fits:G 1965-1973Additional Information OEM No.14-4OMA UOM1 - SET ManufacturerV-Twin OriginUSA 2025 Catalog Pages795$19.66 -
V-Twin - 49-0055 - Indian Aluminum Head Bolt Washer
V-Twin Mfg
MSRP: $23.86$22.31V-Twin - 49-0055 - Indian Aluminum Head Bolt WasherDescriptionIndian aluminum head bolt washer Fits:Chief 1936-1953Additional Information OEM No.I37618 UOM20 - PK ManufacturerV-Twin OriginUSA 2025 Catalog Pages825MSRP: $23.86$22.31 -
V-Twin - 49-0009 - Brass Head Primer Cups
V-Twin Mfg
MSRP: $81.92$81.09V-Twin - 49-0009 - Brass Head Primer CupsDescriptionHead primer cups are for Flathead and Overhead Valve models and features a solid brass construction for exact applications or restoration.Includes knurled knob and valve insert. Fits:UL 1937-1938EL...MSRP: $81.92$81.09 -
V-Twin - 42-6175 - Lower Valve Spring Cup Set Parkerized
V-Twin Mfg
$793.82V-Twin - 42-6175 - Lower Valve Spring Cup Set ParkerizedDescriptionLower valve spring cup set includes 4 piece set of parkerized lower valve spring cups and chrome covers with oil lines and nuts attached.Kit also includes rocker cover strip set with...$793.82 -
V-Twin - 42-6174 - Lower Valve Spring Cup Set Parkerized
V-Twin Mfg
$793.82V-Twin - 42-6174 - Lower Valve Spring Cup Set ParkerizedDescriptionParkerized lower valve spring cup set includes 4 piece set of lower covers with oil lines and nuts attached.Kit also includes rocker cover strip set with screws and cover set with gaskets...$793.82 -
V-Twin - 42-3637 - Lower Valve Spring Cup Set Parkerized
V-Twin Mfg
$683.11V-Twin - 42-3637 - Lower Valve Spring Cup Set ParkerizedDescriptionInclude 4 piece set of lower covers with steel oil lines and nuts brazed in place and 4 piece cover set, which features a parkerized finish.Complete set for four valves include four snap...$683.11 -
V-Twin - 42-1170 - M8 Finned Spark Plug Cover Set Granite
V-Twin Mfg
MSRP: $71.37$70.65V-Twin - 42-1170 - M8 Finned Spark Plug Cover Set GraniteDescriptionGranite finned spark plug cover set for M8 models. Fits:FLT 2017-UPAdditional Information OEM No.25800062 UOM1 - SET ManufacturerV-Twin OriginImported 2025 Catalog Pages33MSRP: $71.37$70.65 -
V-Twin - 42-1160 - M8 Finned Spark Plug Cover Set Black
V-Twin Mfg
MSRP: $71.37$70.65V-Twin - 42-1160 - M8 Finned Spark Plug Cover Set BlackDescriptionBlack finned spark plug cover set for M8 models. Fits:FLT 2017-UPAdditional Information OEM No.25800061 UOM1 - SET ManufacturerV-Twin OriginImported 2025 Catalog Pages33MSRP: $71.37$70.65 -
V-Twin - 42-1158 - Head Bolt and Spark Plug Cover Kit Chrome
V-Twin Mfg
$60.46V-Twin - 42-1158 - Head Bolt and Spark Plug Cover Kit ChromeDescriptionChrome cylinder head bolt and spark plug cover kit. Fits:XL 2004-UPAdditional Information OEM No.44432-04 UOM1 - KIT ManufacturerV-Twin OriginImported 2025 Catalog Pages854$60.46 -
V-Twin - 42-1157 - Head Bolt and Spark Plug Cover Kit Black
V-Twin Mfg
$60.46V-Twin - 42-1157 - Head Bolt and Spark Plug Cover Kit BlackDescriptionBlack cylinder head bolt and spark plug cover kit. Fits:XL 2004-UPAdditional Information UOM1 - KIT ManufacturerV-Twin OriginImported 2025 Catalog Pages854$60.46 -
V-Twin - 42-1156 - Head Bolt and Spark Plug Cover Kit Silver
V-Twin Mfg
$60.46V-Twin - 42-1156 - Head Bolt and Spark Plug Cover Kit SilverDescriptionSilver cylinder head bolt and spark plug cover kit. Fits:XL 2004-UPAdditional Information OEM No.44296-04 UOM1 - KIT ManufacturerV-Twin OriginImported 2025 Catalog Pages854$60.46 -
V-Twin - 42-1154 - Head Bolt and Spark Plug Cover Kit Silver
V-Twin Mfg
$60.46V-Twin - 42-1154 - Head Bolt and Spark Plug Cover Kit SilverDescriptionSilver cylinder head bolt and spark plug cover kit for carbureted models. Fits:FLST 1999-2006FXST 1999-2006FLT 1999-2006FXD 1999-2006Additional Information OEM No.43840-01 UOM1 -...$60.46 -
V-Twin - 42-1153 - Head Bolt and Spark Plug Cover Kit Black
V-Twin Mfg
$80.75V-Twin - 42-1153 - Head Bolt and Spark Plug Cover Kit BlackDescriptionBlack cylinder head bolt and spark plug cover kit for EFI models. Fits:FLT 1999-2016FLST 2000-UPFXST 2000-UPFXD 1999-2017Additional Information OEM No.43859-00 UOM1 - KIT ...$80.75 -
V-Twin - 42-1092 - Brass Cylinder Head Bolt Cover
V-Twin Mfg
$50.39V-Twin - 42-1092 - Brass Cylinder Head Bolt CoverDescriptionSolid brass cylinder head bolt cover is a four piece set. Fits:FXD 1991-2017FLST 1986-2017FXST 1984-2017FXR 1984-1994FLT 1984-2017Additional Information UOM1 - SET ManufacturerV-Twin ...$50.39 -
V-Twin - 42-0772 - Cylinder Head Locker Aluminum
V-Twin Mfg
$27.92V-Twin - 42-0772 - Cylinder Head Locker AluminumDescriptionCylinder head locker fits Big Twin 1340 models in shot peened natural aluminum. Set screws are included for installation. Fits:FXR 1986-1991FXST 1986-1991FLST 1986-1991FLT 1986-1991Additional...$27.92 -
V-Twin - 3717-16 - Cylinder Head Bolt Set 12 Point Black
Colony Machine
MSRP: $49.90$48.50V-Twin - 3717-16 - Cylinder Head Bolt Set 12 Point BlackDescriptionBlack oxide 12 point cylinder head bolt kit includes washers. Fits:XLCH 1973-1985XLH 1973-1985Additional Information UOM1 - SET ManufacturerColony OriginUSAMSRP: $49.90$48.50 -
V-Twin - 37-9399 - Cylinder Headbolt Cover Set Black
V-Twin Mfg
$36.59V-Twin - 37-9399 - Cylinder Headbolt Cover Set BlackDescription4 piece cylinder headbolt cover set features a black finish. Fits:XL 1986-UPFLST 1986-UPFXST 1986-UPFLT 1986-UPFXR 1986-UPAdditional Information UOM1 - SET ManufacturerV-Twin ...$36.59 -
V-Twin - 37-9131 - Head Bolt Cover Set Chrome
V-Twin Mfg
$30.20V-Twin - 37-9131 - Head Bolt Cover Set ChromeDescriptionChrome grooved head bolt cover set. Fits:FXD 1991-2017FLT 1986-2017XL 1986-UPFXST 1986-2017FXR 1986-1994FLST 1986-2017Additional Information OEM No.43890-93 UOM4 - SET ManufacturerV-Twin ...$30.20 -
V-Twin - 37-9019 - Head Bolt Set Chrome
V-Twin Mfg
$98.20V-Twin - 37-9019 - Head Bolt Set ChromeDescriptionChrome 12 point head bolt set Fits:FXR 1986-1991FXD 1991-1991XL 1986-1992FXST 1986-1991FLST 1986-1991FLT 1986-1991Additional Information UOM1 - KIT ManufacturerV-Twin OriginImported 2025 Catalog...$98.20 -
V-Twin - 37-8897 - Head Bolt Cover Set Dome Chrome
V-Twin Mfg
MSRP: $19.86$19.66V-Twin - 37-8897 - Head Bolt Cover Set Dome ChromeDescriptionChrome dome style head bolt cover set Fits:FXST 1984-1985FLT 1984-1985FXR 1984-1985Additional Information UOM4 - SET ManufacturerV-Twin OriginImported 2025 Catalog Pages36MSRP: $19.86$19.66 -
V-Twin - 37-8831 - Cylinder Headbolt Set Chrome
Gardner-Westcott
MSRP: $84.52$82.41V-Twin - 37-8831 - Cylinder Headbolt Set ChromeDescriptionChrome cylinder headbolt set with coarse thread for use with early style STD heads only. Fits:Special applicationAdditional Information UOM10 - SET ManufacturerGardner-Westcott OriginUSA 2025...MSRP: $84.52$82.41 -
V-Twin - 37-8799 - Cylinder Headbolt Cover Set Chrome
V-Twin Mfg
$30.20V-Twin - 37-8799 - Cylinder Headbolt Cover Set ChromeDescription4 piece cylinder headbolt cover set featuring a chrome finish. Fits:FXD 1991-2017FLT 1986-2017XL 1986-UPFXST 1986-2017FXR 1986-1994FLST 1986-2017Additional Information OEM No.43890-93 UOM1...$30.20 -
V-Twin - 37-4050 - Head Screw
V-Twin Mfg
$14.16V-Twin - 37-4050 - Head Screw Description Head screw, 10/24 X 3/8 Fits: FX 1971-1984 FL 1941-1984 Additional Information UOM 10 - PK Manufacturer V-Twin Origin USA 2025 Catalog Pages 485$14.16 -
V-Twin - 37-1209 - Head Bolt Cover Set Chrome
V-Twin Mfg
MSRP: $17.64$17.46V-Twin - 37-1209 - Head Bolt Cover Set ChromeDescriptionChrome head bolt cover set.Sold as a set of 4. Fits:FLT 1999-2016FXST 1999-UPFLST 1999-UPFXD 1999-2017Additional Information UOM1 - SET MeasurementsAdditional InformationHeight: 5/8"Base...MSRP: $17.64$17.46 -
V-Twin - 3648-16 - Stock Head Bolt Kit Cadmium Plated
Colony Machine
MSRP: $56.57$54.98V-Twin - 3648-16 - Stock Head Bolt Kit Cadmium PlatedDescriptionStock head bolt kit features a cadmium plated finish. Fits:XLH 1967-1972XL 1957-1972XLCH 1971-1972Additional Information UOM1 - KIT ManufacturerColony OriginUSAMSRP: $56.57$54.98 -
V-Twin - 3619-1 - Cylinder Head Bracket Parkerized
Colony Machine
$64.02V-Twin - 3619-1 - Cylinder Head Bracket ParkerizedDescriptionCast iron cylinder head bracket features a parkerized finish. Fits:G 1932-1950WL 1932-1950Additional Information OEM No.2806-32 UOM1 - EA ManufacturerColony OriginUSA$64.02 -
V-Twin - 3127-20 - Parkerized Headbolt Kit
Colony Machine
$98.68V-Twin - 3127-20 - Parkerized Headbolt KitDescriptionParkerized plain headbolt kit includes washers. Fits:FL 1940-1947Additional Information UOM1 - KIT ManufacturerColony OriginUSA 2025 Catalog Pages515$98.68 -
V-Twin - 2947-1 - Aluminum Cylinder Head Bracket Chrome
Colony Machine
MSRP: $49.62$48.22V-Twin - 2947-1 - Aluminum Cylinder Head Bracket ChromeDescriptionAluminum cylinder head bracket features a chrome finish. Fits:WL 1936-1952G 1936-1973Additional Information OEM No.2806-40 UOM1 - EA ManufacturerColony OriginUSA 2025 Catalog Pages795MSRP: $49.62$48.22 -
V-Twin - 2946-1 - Aluminum Cylinder Head Bracket Cadmium
Colony Machine
MSRP: $43.08$41.87V-Twin - 2946-1 - Aluminum Cylinder Head Bracket CadmiumDescriptionAluminum cylinder head bracket features a cadmium finish. Fits:WL 1936-1952G 1936-1973Additional Information OEM No.2806-40 UOM1 - EA ManufacturerColony OriginUSA 2025 Catalog...MSRP: $43.08$41.87 -
V-Twin - 2945-1 - Aluminum Cylinder Head Bracket Parkerized
Colony Machine
MSRP: $43.08$41.87V-Twin - 2945-1 - Aluminum Cylinder Head Bracket ParkerizedDescriptionAluminum cylinder head bracket features a parkerized finish. Fits:WL 1936-1952G 1936-1973Additional Information OEM No.2806-40 UOM1 - EA ManufacturerColony OriginUSA 2025 Catalog...MSRP: $43.08$41.87 -
V-Twin - 2432-18 - Head Bolt Washer Kit Parkerized
Colony Machine
MSRP: $51.57$50.12V-Twin - 2432-18 - Head Bolt Washer Kit ParkerizedDescriptionParkerized early style tapered head bolt washer kit used on Flatheads with aluminum heads. Fits:UL 1939-1948W 1939-1952Additional Information OEM No.16822-39 UOM1 - KIT ManufacturerColony ...MSRP: $51.57$50.12 -
V-Twin - 2262-4 - Cylinder Head Bolt Cover Set Pike Type
Colony Machine
MSRP: $58.65$57.00V-Twin - 2262-4 - Cylinder Head Bolt Cover Set Pike TypeDescriptionPike type cylinder head bolt cover set. Fits:FXR 1986-1994XL 1985-2003FLST 1999-2017FXST 1999-2017FXD 1999-2017FLT 1999-2017Additional Information UOM4 - SET MeasurementsAdditional...MSRP: $58.65$57.00 -
V-Twin - 2183-16 - Head Stud Set Parkerized
Colony Machine
MSRP: $66.00$64.15V-Twin - 2183-16 - Head Stud Set ParkerizedDescriptionParkerized head stud set. Fits:WL 1929-1950Additional Information OEM No.16802-29 UOM1 - KIT ManufacturerColony OriginUSA 2025 Catalog Pages795MSRP: $66.00$64.15 -
V-Twin - 2152-36 - Cylinder Head Bolt Nut Kit Parkerized
Colony Machine
MSRP: $43.92$42.68V-Twin - 2152-36 - Cylinder Head Bolt Nut Kit ParkerizedDescriptionCylinder head bolt nut kit with a parkerized finish. Fits:WL 1929-1941Additional Information OEM No.15-26 UOM1 - KIT ManufacturerColony OriginUSA 2025 Catalog Pages391MSRP: $43.92$42.68 -
V-Twin - 2055-1 - Headbolt Chrome
Colony Machine
MSRP: $11.86$10.67V-Twin - 2055-1 - Headbolt ChromeDescriptionChrome head bolt for alternator mount. Fits:G 1965-1973Additional Information OEM No.16813-65 UOM1 - EA ManufacturerColony OriginUSA 2025 Catalog Pages795MSRP: $11.86$10.67 -
V-Twin - 2024-4 - Engine Cylinder Head Bolt Cover Chrome
Colony Machine
MSRP: $56.57$54.98V-Twin - 2024-4 - Engine Cylinder Head Bolt Cover ChromeDescriptionChrome engine cylinder head bolt cover.Sold as a set of 4. Fits:FXR 1986-1994XL 1985-UPFLST 1999-2017FXST 1999-2017FXD 1999-2017FLT 1999-2017Additional Information UOM1 - SET ...MSRP: $56.57$54.98 -
V-Twin - 16-1019 - Headbolt Wrench Tool
Motorshop
MSRP: $19.86$19.66V-Twin - 16-1019 - Headbolt Wrench ToolDescriptionHeadbolt wrench tool with angled handle is for 3/8" bolts. Fits:WL 1930-1936G 1936-1973U 1936-1948W 1936-1952Additional Information UOM1 - EA ManufacturerMotorshop OriginImported 2025 Catalog Pages1287MSRP: $19.86$19.66 -
V-Twin - 16-0531 - Valve Seat Wheel
V-Twin Mfg
$37.28V-Twin - 16-0531 - Valve Seat WheelDescriptionValve seat wheel is 1.875"-45 . Fits:Custom applicationAdditional Information UOM1 - EA ManufacturerV-Twin OriginUSA$37.28 -
V-Twin - 16-0416 - Headbolt Tap Tool
Motorshop
$114.68V-Twin - 16-0416 - Headbolt Tap ToolDescriptionHeadbolt tap tool Fits:UL 1937-1948WL 1929-1952G 1930-1973VL 1930-1936Additional Information UOM1 - EA ManufacturerMotorshop OriginUSA$114.68 -
V-Twin - 16-0044 - Sav-A-Thread Tool Kit
Helicoil
MSRP: $78.28$76.41V-Twin - 16-0044 - Sav-A-Thread Tool KitDescriptionHeli-coil sav-a-thread tool kit for all spark plugs includes 14mm top, insertion tool and three inserts.Kit repairs spark plug holes for 14mm short or long reach plugs on aluminum heads. Fits:All...MSRP: $78.28$76.41
Harley Cylinder Heads
Harley cylinder heads are key to unlocking better combustion, more horsepower, and crisper throttle response. Whether you're rebuilding a vintage ride or dialing in your current setup, the right heads can completely transform your V-twin—bringing out that iconic Harley sound and strong, reliable torque.
At Deadbeat Customs, we carry Harley cylinder heads from top brands like S&S. These heads are made from premium aluminum and feature CNC-machined combustion chambers, multi-angle valve seats, and high-performance valve springs. Upgrade your motor with Harley cylinder heads that run cooler, last longer, and hit harder. Check out the collection and take your build to the next level.