Engine
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Colony - 9728-36 Parkerized Headbolt Kit fits '37-'48 UL '29-'52 WL, '29-'73 G Models
Colony Machine
$103.71Colony - 9728-36 Parkerized Headbolt Kit fits '37-'48 UL '29-'52 WL, '29-'73 G Models Parkerized stock headbolt kit for Flathead engines. Fitment: UL 1937-1948 WL 1929-1952 G 1929-1973$103.71 -
Colony - 3677-10 7/16-14 x 2-1/2" Knurled Head Allen Bolt fits '06-'17 FXD Cast or Spoke Wheel Model
Colony Machine
$31.18Colony - 3677-10 7/16-14 x 2-1/2" Knurled Head Allen Bolt fits '06-'17 FXD Cast or Spoke Wheel Model Knurled head allen bolt is 7/16-14 x 2-1/2". Fitment: FXD 2006-2017 cast or spoke wheel$31.18 -
Colony - 37-0009 3/8"-24 Chrome Hex Nuts fits '37-'48 UL, '36-'40 EL, '41-'57 FL Models (OEM #7789)
Colony Machine
$9.02Colony - 37-0009 3/8"-24 Chrome Hex Nuts fits '37-'48 UL, '36-'40 EL, '41-'57 FL Models (OEM #7789) 3/8"-24 hex nuts with chrome finish. Fitment: UL 1937-1948 EL 1936-1940 FL 1941-1957$9.02 -
Colony - 37-0023 1/8" Parkerized Inner Diameter Flat Washers - 10 Pack
Colony Machine
$19.88Colony - 37-0023 1/8" Parkerized Inner Diameter Flat Washers - 10 Pack Parkerized flat washers from Colony Motorcycle Products measure 5/16" x 11/16" x 1/8". Fitment: All models$19.88 -
Colony - 9746-7 Parkerized Rear Chain Guard Mount Kit fits '36-'52 WL Model
Colony Machine
$21.52Colony - 9746-7 Parkerized Rear Chain Guard Mount Kit fits '36-'52 WL Model Parkerized rear chain guard mount kit for side valve models Note: Assembly order, from outside in: Inner Primary -> Outside, Rigid Chain Guard -> Between, Oil...$21.52 -
Colony - 9748-16 Allen Type Headbolt Kit fits '73-'85 Sportster Model
Colony Machine
$58.35Colony - 9748-16 Allen Type Headbolt Kit fits '73-'85 Sportster Model Allen type headbolt kit. Fitment: XL 1973-1985$58.35 -
Colony - 9752-4 Allen Type Oil Filter Adapter Screw Kit fits '86-Up Sportster Model
Colony Machine
$7.86Colony - 9752-4 Allen Type Oil Filter Adapter Screw Kit fits '86-Up Sportster Model Allen type oil filter adapter screw kit Fitment: XL 1986-UP$7.86 -
Colony - 9759-4 Allen Type Tappet Block Screw Kit fits '91-'94 Sportster Model
Colony Machine
$13.86Colony - 9759-4 Allen Type Tappet Block Screw Kit fits '91-'94 Sportster Model Tappet block allen type screw kit. Fitment: XL 1991-1994$13.86 -
Colony - 9760-4 Allen Type Tappet Block Screw Kit fits '95-'03 Sportster Model
Colony Machine
$15.86Colony - 9760-4 Allen Type Tappet Block Screw Kit fits '95-'03 Sportster Model Tappet block allen type screw kit. Fitment: XL 1995-2003$15.86 -
Colony - 9761-4 Kick Starter Trip Bolt and Nut Kit fits '41-'52 WL, '41-'63 G Models (OEM #33456-26)
Colony Machine
$30.85Colony - 9761-4 Kick Starter Trip Bolt and Nut Kit fits '41-'52 WL, '41-'63 G Models (OEM #33456-26) Trip bolt and nut kit for kick starter on side valve models Fitment: WL 1941-1952 G 1941-1963 Measurements: Length: 1-1/16" Thread: 1/4"-24$30.85 -
V-Twin - Black Rocker Box Cover Set fits '04-'06 Sportster Model
V-Twin Manufacturing
$402.23V-Twin - Black Rocker Box Cover Set fits '04-'06 Sportster Model Rocker box cover set with black finish. Four piece set for two cylinders Fitment: XL 2004-2006$402.23 -
V-Twin - Black Top Rocker Box Cover and D-Ring Kit fits '86-'03 Sportster Model
V-Twin Manufacturing
$214.19V-Twin - Black Top Rocker Box Cover and D-Ring Kit fits '86-'03 Sportster Model Black top rocker box cover set includes d-ring kit. Fitment: XL 1986-2003$214.19 -
Colony - 9772-22 Allen Type Lower Motor Mount Kit fits '86-Up Sportster Model
Colony Machine
$44.27Colony - 9772-22 Allen Type Lower Motor Mount Kit fits '86-Up Sportster Model Lower motor allen type mount kit. Fitment: XL 1986-UP$44.27 -
Colony - 9781-5 Parkerized Top Motor Mount Kit fits '37-'52 WL, '32-'73 G Models
Colony Machine
$23.67Colony - 9781-5 Parkerized Top Motor Mount Kit fits '37-'52 WL, '32-'73 G Models Parkerized top motor mount kit Fitment: WL 1937-1952 G 1932-1973$23.67 -
Colony - 9787-12 Zinc Oil Pump Mount Kit fits '79-'91 FLT, '82-'91 FXR, '86-'91 FLST Models
Colony Machine
$16.98Colony - 9787-12 Zinc Oil Pump Mount Kit fits '79-'91 FLT, '82-'91 FXR, '86-'91 FLST Models Oil pump mount kit with a zinc finish. Fitment: FLT 1979-1991 FXR 1982-1991 FXD 1991-1991 FL 1978-1984 FLST 1986-1991 FXST 1984-1991 FX 1978-1984$16.98 -
Colony - 9794-12 Chrome Cam Cover Screw Kit fits '41-'69 FL, '36-'40 EL Models
Colony Machine
$35.07Colony - 9794-12 Chrome Cam Cover Screw Kit fits '41-'69 FL, '36-'40 EL Models Chrome cam cover screw kit with a 1/4-20 thread. Fitment: FL 1941-1969 EL 1936-1940$35.07 -
Colony - 9795-12 Cadmium Cam Cover Screw Kit '41-'69 FL, '36-'40 EL Models
Colony Machine
$31.20Colony - 9795-12 Cadmium Cam Cover Screw Kit '41-'69 FL, '36-'40 EL Models Cam cover screw kit has a cadmium finish with a 1/4-20 thread. Fitment: FL 1941-1969 EL 1936-1940$31.20 -
Colony - 9797-20 Front Motor Mount Kit Allen Type fits '57-'84 Sportster Model
Colony Machine
$74.32Colony - 9797-20 Front Motor Mount Kit Allen Type fits '57-'84 Sportster Model Allen type front motor mount kit. Fitment: XL 1957-1984$74.32 -
Colony - 9799-20 Front Motor Mount Kit Hex Type fits '57-'84 Sportster Model
Colony Machine
$48.15Colony - 9799-20 Front Motor Mount Kit Hex Type fits '57-'84 Sportster Model Hex type front motor mount kit with a cadmium finish. Fitment: XL 1957-1984$48.15 -
Colony - 9806-8 Acorn Type Oil Pump Mount Kit fits '77-'90 Sportster Model
Colony Machine
$11.86Colony - 9806-8 Acorn Type Oil Pump Mount Kit fits '77-'90 Sportster Model Acorn type oil pump mount kit Fitment: XL 1977-1990$11.86 -
Colony - 9808-6 Oil Line Nipple Cap fits '38-'48 UL, '41-'64 FL, '36-'40 EL Models (OEM #3583-15)
Colony Machine
$23.53Colony - 9808-6 Oil Line Nipple Cap fits '38-'48 UL, '41-'64 FL, '36-'40 EL Models (OEM #3583-15) Cadmium plated oil line nipple cap set is used to cap oil fitting during storage Fitment: J 1915-1926 EL 1936-1940 FL 1941-1964 UL 1938-1948$23.53 -
Colony - 9814-16 Chrome Tappet Block Screw Kit fits Special Application for Using Pre 1976 Tappet Blocks
Colony Machine
$25.02Colony - 9814-16 Chrome Tappet Block Screw Kit fits Special Application for Using Pre 1976 Tappet Blocks Chrome tappet block screw kit with a 1/2-20 slotted thread Fitment: Special application for using pre 1976 tappet blocks$25.02 -
Colony - 9819-12 Allen Type Timing Cover Screw Kit fits '93-'94 FXR, '93-'99 FXD/FXST/FLST/FLT Models
Colony Machine
$22.60Colony - 9819-12 Allen Type Timing Cover Screw Kit fits '93-'94 FXR, '93-'99 FXD/FXST/FLST/FLT Models Chrome timing cover allen type screw kit Fitment: FXD 1993-1999 FXST 1993-1999 FXR 1993-1994 FLST 1993-1999 FLT 1993-1999$22.60 -
Colony - 9821-4 Chrome Oil Filter Adapter Mount Kit fits '92-'99 FXST/FLST Model
Colony Machine
$7.86Colony - 9821-4 Chrome Oil Filter Adapter Mount Kit fits '92-'99 FXST/FLST Model Chrome oil filter adapter mount kit Fitment: FXST 1992-1999 FLST 1992-1999$7.86 -
Colony - 9827-12 Allen Type Timing Cover Screw Kit fits '41-'69 FL, '36-'40 EL Models
Colony Machine
$32.91Colony - 9827-12 Allen Type Timing Cover Screw Kit fits '41-'69 FL, '36-'40 EL Models Allen type timing cover screw kit with a 1/4-20 thread. Fitment: FL 1941-1969 EL 1936-1940$32.91 -
Colony - 9828-16 Chrome Tappet Block Screw Kit fits Special Application for Using Pre 1976 Tappet Blocks
Colony Machine
$22.45Colony - 9828-16 Chrome Tappet Block Screw Kit fits Special Application for Using Pre 1976 Tappet Blocks Chrome tappet block screw kit with a 1/4-20 thread. Fitment: Special application for using pre 1976 tappet blocks$22.45 -
V-Twin - Chrome Rocker Box Screw Kit fits '77-'85 Sportster Model
V-Twin Manufacturing
$15.86V-Twin - Chrome Rocker Box Screw Kit fits '77-'85 Sportster Model Chrome rocker box screw kit without studChrome rocker box screw kit without stud Fitment: XL 1977-1985$15.86 -
Colony - 9832-28 Cadmium Rocker Box Screw Kit fits '77-'85 Sportster Model
Colony Machine
$34.98Colony - 9832-28 Cadmium Rocker Box Screw Kit fits '77-'85 Sportster Model Rocker box screw kit with a cadmium finish Fitment: XL 1977-1985$34.98 -
Colony - 9840-8 Chrome Rocker Arm Shaft End Nut Kit fits '36-'40 EL, '41-'47 FL Models
Colony Machine
$23.67Colony - 9840-8 Chrome Rocker Arm Shaft End Nut Kit fits '36-'40 EL, '41-'47 FL Models Chrome Knucklehead rocker arm shaft end nut kit. The thread measures 7/16 x 20 Fitment: EL 1936-1940 FL 1941-1947 Tech Note: Shovelhead rocker arm...$23.67 -
Colony - 9842-8 Parkerized Rocker Arm Shaft End Nut Kit fits '36-'40 EL, '41-'47 FL Models
Colony Machine
$23.67Colony - 9842-8 Parkerized Rocker Arm Shaft End Nut Kit fits '36-'40 EL, '41-'47 FL Models Knucklehead rocker arm shaft end nut kit with a parkerized finish Fitment: EL 1936-1940 FL 1941-1947 Tech Note: Shovelhead rocker arm shims may be used...$23.67 -
Colony - 9847-9 Chrome Oil Line Fitting Kit fits '36-'40 EL, '41-'41 FL Models
Colony Machine
$56.13Colony - 9847-9 Chrome Oil Line Fitting Kit fits '36-'40 EL, '41-'41 FL Models Chrome oil line fitting kit with washer. Fitment: EL 1936-1940 FL 1941-1941$56.13 -
Colony - 9848-9 Cadmium Oil Line Fitting Kit fits '36-'40 EL, '41-'41 FL Models
Colony Machine
$43.32Colony - 9848-9 Cadmium Oil Line Fitting Kit fits '36-'40 EL, '41-'41 FL Models Oil line fitting kit with cadmium finish. This 9 piece kit includes 2 banjo bolts, 4 washers, 2 reducer sleeves, and 1 nipple. Fitment: EL 1936-1940 FL 1941-1941$43.32 -
Colony - 9854-28 Chrome Upper and Lower Engine Bolts fits '84-'99 FXST, '86-'99 FLST Models
Colony Machine
$57.58Colony - 9854-28 Chrome Upper and Lower Engine Bolts fits '84-'99 FXST, '86-'99 FLST Models Upper and lower engine mount bolts with a chrome finish Fitment: FXST 1984-1999 FLST 1986-1999$57.58 -
Paughco - Chrome Ribbed Panhead Cover Set fits '48-'65 FL Model
Paughco
$278.31Paughco - Chrome Ribbed Panhead Cover Set fits '48-'65 FL Model Chrome ribbed Panhead cover set. Order d-rings separately. Fitment: FL 1948-1965$278.31 -
Paughco - Chrome Panhead Cover Set fits '48-'65 FL Model (OEM #17500-48)
Paughco
$274.95Paughco - Chrome Panhead Cover Set fits '48-'65 FL Model (OEM #17500-48) Panhead cover set features a chrome steel construction. Order d-rings separately. Fitment: FL 1948-1965$274.95 -
V-Twin - Black and White Knucklehead Engine Patches
V-Twin Manufacturing
$12.98V-Twin - Black and White Knucklehead Engine Patches Patches with black and white Knucklehead Engine lineart design can be easily ironed or sewn on. Set of two. Note: When using an electric iron to apply the patches to clothing, NEVER use steam...$12.98 -
V-Twin - Panhead Motor Patch Set
V-Twin Manufacturing
$21.80V-Twin - Panhead Motor Patch Set Patches of a 1948-1965 Panhead engine measures 4" x 4". Patches can easily be ironed or sewn on. Sold as a pair. Note: When using an electric iron to apply the patches to clothing, NEVER use steam. Patch can be...$21.80 -
V-Twin - Nose Cone Shovelhead Patches
V-Twin Manufacturing
$17.44V-Twin - Nose Cone Shovelhead Patches Patches with a nose cone Shovelhead deisgn can easily be ironed or sewn on. Sold as a set of 2. Note: When using an electric iron to apply the patches to clothing, NEVER use steam. Patch may be sewn on...$17.44 -
V-Twin - Knucklehead Rocker Box Cap with Fitting fits '36-'37 EL Model (OEM #97-36)
V-Twin Manufacturing
$45.43V-Twin - Knucklehead Rocker Box Cap with Fitting fits '36-'37 EL Model (OEM #97-36) Natural brass cap includes a screw-in fitting for front rocker boxes on 1936 61" Knuckleheads only. Machined of brass, should be cadmium plated for accurate...$45.43 -
V-Twin - Knucklehead Rocker Box Fitting fits '36-'37 EL Model (OEM #94-36)
V-Twin Manufacturing
$43.60V-Twin - Knucklehead Rocker Box Fitting fits '36-'37 EL Model (OEM #94-36) Knucklehead rocker box fitting features a brass finish. Machined of brass should be cadmium plated by customer for exact/correct restoration. Fitment: EL 1936-1937$43.60
Harley Engine
At Deadbeat Customs, we offer a wide selection of Harley engine parts built for performance, reliability, and long-lasting power. Whether you're rebuilding a vintage motor or upgrading a modern setup, we’ve got the top-end and bottom-end components you need to get the job done right.
We carry engine parts for a wide range of Harley Davidson models, including Dyna, Sportster, FXR, Touring, Softail, Shovelhead, and Panhead. From the classic Evo 1340 and Shovelhead to Twin Cam 88/96/103/110, and the modern Milwaukee-Eight 107/114/117, our catalog covers nearly every era of Harley engine design.
Choose from trusted brands like S&S Cycle, Fueling, Vance & Hines, and more—known for producing high-quality components that meet or exceed OEM standards.
Explore our full collection of Harley engine parts today and build your motor with confidence—because whether it’s vintage or modern, your Harley deserves the best from the inside out.