Engine
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Out of stock
V-Twin - 11-1678 - M8 Lower Rocker Box Cover Screw Set
V-Twin Mfg
$43.66V-Twin - 11-1678 - M8 Lower Rocker Box Cover Screw SetDescription18 piece lower rocker box cover screw set features a stainless steel finish. For use on M8 models.Sold as an 18 piece set including OEM #10200446 (8) 1/4"-20 x 1" flante hex head screws,...$43.66 -
Out of stock
V-Twin - 11-1676 - Evolution Knucklehead Rocker Box Cover - Fits 1985-1999 Harley-Davidson FLST, 1985-1998 FLT, 1985-1999 FXST
V-Twin Mfg
$249.48Evolution Knucklehead rocker box cover fetures a raw finish and is one piece only for use on Knucklehead rocker box kit. Fits:FLST 1985-1999FLT 1985-1998FXST 1985-1999Additional Information UOM1 - EA ManufacturerV-Twin OriginImported$249.48 -
Out of stock
V-Twin - 11-1675 - Knucklehead Rocker Box Cover Only - Fits 1985-1999 Harley-Davidson FLST, 1985-1998 FLT, 1985-1999 FXST
V-Twin Mfg
$232.77One piece rocker box cover features a raw finish and is for use on Knucklehead rocker box kits. Fits:FLST 1985-1999FLT 1985-1998FXST 1985-1999Additional Information UOM1 - EA ManufacturerV-Twin OriginImported$232.77 -
Out of stock
V-Twin - 11-1659 - M8 Shovelhead Rocker Box Cover Set
V-Twin Mfg
MSRP: $508.06$414.59V-Twin - 11-1659 - M8 Shovelhead Rocker Box Cover SetDescriptionShovelhead rocker box cover set features a raw natural cast finish and replaces stock covers. For use on M8 models.Offers imporved heat dissipation but readily accepts VHT black or colored...MSRP: $508.06$414.59 -
Out of stock
V-Twin - 11-1652 - Replica 74 inch Overhead Valve Piston Set .005 Oversize
Motorshop
MSRP: $146.43$131.77V-Twin - 11-1652 - Replica 74 inch Overhead Valve Piston Set .005 OversizeDescriptionReplica style 3-7/16" bore piston set has 8.5:1 compression ratio and is .005 oversize. Piston set includes Hasting rings, 2 wrist pins and 4 circlips. Pistons have a...MSRP: $146.43$131.77 -
Out of stock
V-Twin - 11-1635 - TC-88 Rocker Box Mount Kit Chrome - Fits 1999-2016 Harley-Davidson FLT, FLST, 1999-2017 FXST, FXD
V-Twin Mfg
$74.15Rocker box mount kit includes upper and lower rocker cover base and top screws in a chrome finish.Sold as a 36 piece kit. Fits:FLT 1999-2016FLST 1999-2016FXST 1999-2017FXD 1999-2017Additional Information UOM1 - KIT ManufacturerV-Twin OriginImported$74.15 -
Out of stock
V-Twin - 11-1610 - M8 Complete Lower Rocker Box Cover Screw Set Zinc
V-Twin Mfg
$44.44V-Twin - 11-1610 - M8 Complete Lower Rocker Box Cover Screw Set ZincDescriptionM8 complete lower rocker box cover screw set features a zinc finish.20 pieces screw set is for use on M8 models. Includes all OEM's size grade 8 screws, as following. Two hex...$44.44 -
Out of stock
V-Twin - 11-1609 - M8 Upper Rocker Box Mount Kit
V-Twin Mfg
$44.44V-Twin - 11-1609 - M8 Upper Rocker Box Mount KitDescriptionUpper rocker box mount kit for M8 models.. Fits:FLT 2017-UPFXST 2018-UPAdditional Information UOM1 - KIT ManufacturerV-Twin OriginImported$44.44 -
Out of stock
V-Twin - 11-1580 - Evolution Rocker Cover Set
Motorshop
$549.91V-Twin - 11-1580 - Evolution Rocker Cover SetDescriptionEvolution rocker cover set features a natural alloy finish with chrome hex nuts and chrome rocker cover tins. For Evolution Big Twin models and bolts on for a true Knucklehead style.Details include...$549.91 -
Out of stock
V-Twin - 11-1577 - TC-88 Finned Rocker Box Set - Fits 1999-2016 Harley-Davidson FL, 1999-2017 FLST, FXST
V-Twin Mfg
$282.05TC-88 finned rocker box set features a black finish. Fits:FL 1999-2016FLST 1999-2017FXST 1999-2017Additional Information UOM1 - SET ManufacturerV-Twin OriginImported$282.05 -
Out of stock
V-Twin - 11-1559 - 45 inch Valve Guide Set - Fits 1929-1931 Harley-Davidson DL
V-Twin Mfg
$290.2045" valve guide set is the long shoulder type and is the same guide intake and exhaust.Sold as a set of 4. Fits:DL 1929-1931Additional Information UOM1 - SET ManufacturerV-Twin OriginUSA 2025 Catalog Pages802$290.20 -
Out of stock
V-Twin - 11-1547 - 1936 Knucklehead Rocker Arm Set
V-Twin Mfg
$776.16V-Twin - 11-1547 - 1936 Knucklehead Rocker Arm SetDescription1936 Knucklehead rocker arm set is nickel plated and is for use with exposed rocker arms on 1936-1937 EL models only.Buttons are removeable. Remove steel plugs indicated by the arrows. *NOTE:...$776.16 -
Out of stock
V-Twin - 11-1545 - 45 inch DL Intake Valve - Fits 1929-1931 Harley-Davidson DL
V-Twin Mfg
$54.9645" DL intake valve. Fits:DL 1929-1931Additional Information OEM No.163-29 UOM1 - EA ManufacturerV-Twin OriginUSA$54.96 -
Out of stock
V-Twin - 11-1544 - 45 inch DL Exhaust Valve - Fits 1929-1931 Harley-Davidson DL
V-Twin Mfg
$54.9645" DL exhaust valve. Fits:DL 1929-1931Additional Information OEM No.165-29 UOM1 - EA ManufacturerV-Twin OriginUSA$54.96 -
Out of stock
V-Twin - 11-1543 - Valve Keeper Pins
Eastern Motorcycle Parts
MSRP: $37.35$33.27V-Twin - 11-1543 - Valve Keeper PinsDescriptionValve keeper pins for use in slotted valves.Sold as a pack of 5. Fits:JD 1915-1929DL 1929-1935Additional Information UOM5 - PK ManufacturerEastern OriginUSAMSRP: $37.35$33.27 -
Out of stock
V-Twin - 11-1484 - Full Finned Panhead Rocker Box Cover Set - Fits 1948-1965 Harley-Davidson FL
V-Twin Mfg
$508.06Full finned Panhead rocker box cover set features a polished finish.Full finned Panhead valve covers are manufactured from a billet of aluminum and forged to shape the shot peened for a natural finish, providing a more dense surface and grain structure...$508.06 -
Out of stock
V-Twin - 11-1449 - Evolution Knucklehead Rocker Box Cover Kit - Fits 1985-1999 Harley-Davidson FLST, 1985-1998 FLT, 1985-1999 FXST
V-Twin Mfg
MSRP: $723.95$400.31Knucklehead Rocker box kit features a natural cast finish for Evolution models and offers additional cooling. Rocker box cover kit includes two covers, two knucklehead and four chrome hex knucklehead nuts.Rocker box cover is two piece, as the "knuckle"...MSRP: $723.95$400.31 -
Out of stock
V-Twin - 11-1435 - OE Pushrod Cover Spring Cup Set Black
OE
MSRP: $49.90$48.50V-Twin - 11-1435 - OE Pushrod Cover Spring Cup Set BlackDescriptionOE pushrod cover spring cup set features a black finish.Sold as a set of 4. Requires the use of adjustable pushrods or removal of rocker box covers, rocker arms and fixed length pushrods...MSRP: $49.90$48.50 -
Out of stock
V-Twin - 11-1434 - Evolution D-Ring Set - Fits 1984-1991 Harley-Davidson FLH, FLST
V-Twin Mfg
$92.30Evolution rocker box cover d-ring set features an alloy natural finish.Sold as a pair. Fits:FLH 1984-1991FLST 1984-1991Additional Information UOM1 - SET FinishAlloy ManufacturerV-Twin OriginImported$92.30 -
Out of stock
V-Twin - 11-1413 - 1690cc Piston Ring Set Standard Size
Hastings
MSRP: $116.07$114.44V-Twin - 11-1413 - 1690cc Piston Ring Set Standard SizeDescriptionHasting ring set is standard size and for use with TC-103. Fits:FXD 2010-2017 TC-103FLT 2010-2016 TC-103FLST 2010-2017 TC-103FXST 2010-2017 TC-103Additional Information UOM1 - SET ...MSRP: $116.07$114.44 -
Out of stock
V-Twin - 11-1398 - 96 inch Twin Cam Piston Ring .005
Hastings
MSRP: $96.82$91.24V-Twin - 11-1398 - 96 inch Twin Cam Piston Ring .005DescriptionHastings moly piston ring set is .005 oversize. Set includes moly top compression ring and chrome oil rings. Sold in sets for 2 pistons. Fits:FLT 2007-2016FLST 2007-2017FXD 2007-2017FXST...MSRP: $96.82$91.24 -
Out of stock
V-Twin - 11-1382 - 1000cc Piston Ring Set .050 Oversize
Hastings
$92.69V-Twin - 11-1382 - 1000cc Piston Ring Set .050 OversizeDescriptionHastings moly piston ring set is for a 3-3/16" bore and is .050 oversize. Features moly top compression rings with a size of 1/16" and oil rings with a size of 3/16".Sold as a pair for 2...$92.69 -
Out of stock
V-Twin - 11-1381 - 1000cc Piston Ring Set .040 Oversize
Hastings
MSRP: $93.74$88.34V-Twin - 11-1381 - 1000cc Piston Ring Set .040 OversizeDescriptionHastings moly piston ring set is for a 3-3/16" bore and is .040 oversize. Features moly top compression rings with a size of 1/16" and oil rings with a size of 3/16".Sold as a pair for 2...MSRP: $93.74$88.34 -
Out of stock
V-Twin - 11-1350 - 88 inch Twin Cam Moly Piston Ring Set Standard
Hastings
MSRP: $116.09$74.91V-Twin - 11-1350 - 88 inch Twin Cam Moly Piston Ring Set StandardDescriptionHastings moly piston ring set is standard size. Set includes moly top compression ring and chrome oil ring.Sold as a pair for 2 pistons. Fits:FLST 1999-2006FXST 1999-2006FLT...MSRP: $116.09$74.91 -
Out of stock
V-Twin - 11-1347 - 61 inch Overhead Valve 3-5/16 inch Piston Set .005 Oversize
Motorshop
$285.96V-Twin - 11-1347 - 61 inch Overhead Valve 3-5/16 inch Piston Set .005 OversizeDescriptionPiston set with 3-5/16" bore is .005 oversized. Set includes hasting 3 piece ring set, 2 wrist pins, and 4 circlips. Pistons have a steel expansion control strut...$285.96 -
Out of stock
V-Twin - 11-1304 - 1270cc/883cc Piston Kit
V-Twin Mfg
$237.50V-Twin - 11-1304 - 1270cc/883cc Piston KitDescription1270cc/883cc piston kit with rings.MC forged pistons have teflon coated tops to aid in a more complete combustion. Final cylinder is done with our 6 position Rottlier honing machine. **NOTE: Run engine...$237.50 -
Out of stock
V-Twin - 11-1303 - Replica Knucklehead Solid Pushrod Set
Motorshop
$127.50V-Twin - 11-1303 - Replica Knucklehead Solid Pushrod SetDescriptionSifton pushrod set is constructed of steel for use on Knucklehead engines.Pushrod has a diameter of 3/8". ...$127.50 -
Out of stock
V-Twin - 11-1297 - Knucklehead Cylinder Head Set
Motorshop
$3,853.31V-Twin - 11-1297 - Knucklehead Cylinder Head SetDescriptionKnucklehead cylinder head set features original cast iron construction with a black finish. Head set includes valves, springs, collars and guides with chrome rocker arm covers. Set includes head...$3,853.31 -
Out of stock
V-Twin - 11-1293 - 74 inch Panhead Cylinder Set
Motorshop
$379.30V-Twin - 11-1293 - 74 inch Panhead Cylinder SetDescriptionReplica set includes the front and rear cylinders with OE style casting number code.The cylinders are bored and honed to 3.438" inner dimaeter. Bore size is 3.4380" - 3.4385". ...$379.30 -
Out of stock
V-Twin - 11-1276 - Piston Kit .080 Oversize
Motorshop
$207.80V-Twin - 11-1276 - Piston Kit .080 OversizeDescriptionKit includes .080 pistons, thick ring set, wrist pin and lock piston that features a steel expansion strut cast in.Pistons have a steel expansion control strut cast as original. Fits:G 1929-1949WL...$207.80 -
Out of stock
V-Twin - 11-1246 - M8 Lower Pushrod Cover Set Chrome
V-Twin Mfg
$56.91V-Twin - 11-1246 - M8 Lower Pushrod Cover Set ChromeDescriptionM8 lower pushrod cover set features a chrome finish.This lower pushrod cover set replaces OEM#25701000. Sold as a set of 4. Fits:FLST 2018-UP M8 modelsFLT 2017-UP M8 modelsFXST 2018-UP M8...$56.91 -
Out of stock
V-Twin - 11-1245 - Lower Pushrod Cover Chrome - Fits 1979-1985 Harley-Davidson XL (Late 1979)
V-Twin Mfg
$51.682023 New Production chrome lower pushrod covers.Sold as a set of 4. Fits:XL 1979-1985 Late 1979Additional Information OEM No.17937-79 UOM1 - SET FinishChrome ManufacturerV-Twin OriginImported$51.68 -
Out of stock
V-Twin - 11-1237 - Billet Lower Pushrod Cover Set - Fits 1984-1999 Harley-Davidson FX, FL
V-Twin Mfg
$112.44Billet lower pushrod cover set features a natural alloy finish. Set fits Evolution models.Sold as a four piece set. Fits:FX 1984-1999FL 1984-1999Additional Information UOM1 - SET MeasurementsAdditional InformationLength: 95mm ManufacturerV-Twin ...$112.44 -
Out of stock
V-Twin - 11-1235 - Sifton Billet Lower Pushrod Cover Set
Sifton
$112.44V-Twin - 11-1235 - Sifton Billet Lower Pushrod Cover SetDescriptionSifton billet lower pushrod cover set features a natural alloy finish. Set fits Panhead and Shovelhead motors. Fits:FX 1948-1978FL 1948-1978Additional Information UOM1 - KIT ...$112.44 -
Out of stock
V-Twin - 11-1224 - M8 Cast Iron Intake Valve Guide
Kibblewhite
MSRP: $13.86$12.47V-Twin - 11-1224 - M8 Cast Iron Intake Valve GuideDescriptionCast iron intake valve guide is for M8 models and is .001" oversize. Fits:FLT 2017-UPAdditional Information UOM1 - EA ManufacturerKibblewhite MaterialCast Iron OriginUSA Size.001 2025...MSRP: $13.86$12.47 -
Out of stock
V-Twin - 11-1210 - Solid Tappet Screw Set - Fits 1936-1952 Harley-Davidson EL
V-Twin Mfg
$35.46Solid tappet screw set includes 4 screws with lock nut. Set is for solid puhsrods on Panhead, Knucklehead and Sportser. Fits:EL 1936-1940EL 1941-1952Additional Information UOM1 - SET ManufacturerV-Twin OriginImported$35.46 -
Out of stock
V-Twin - 11-1201 - 1200cc Cylinder and Piston Kit
Motorshop
$658.82V-Twin - 11-1201 - 1200cc Cylinder and Piston KitDescriptionMotorshop 1200cc cylinder kit includes Wiseco fitted 9:1 piston and ring sets to be used with 1200cc heads only.Can not be used as Big Bore kit for 883 models. Fits:XL 1988-2003Additional...$658.82 -
Out of stock
V-Twin - 11-1200 - 1200cc Cylinder and Piston Kit
Motorshop
$742.64V-Twin - 11-1200 - 1200cc Cylinder and Piston KitDescriptionMotorshop 1200cc cylinder kit includes Wiseco fitted 9:1 piston and ring sets to be used with 1200cc heads only.Can not be used as Big Bore Kit for 883 models. Order head base gasket separately...$742.64 -
Out of stock
V-Twin - 11-1196 - M8 Big Bore Black Cylinder Set
Motorshop
$488.03V-Twin - 11-1196 - M8 Big Bore Black Cylinder SetDescriptionBlack 4.250" big bore cylinder set with machined edge fins increase the bore size from 124" to 128". Features a slightly larger fin area for better heat dissipation and increased cooling.For use...$488.03 -
Out of stock
V-Twin - 11-1157 - Knucklehead Rocker Arm Set - Fits 1940-1947 Harley-Davidson FL, 1938-1947 EL
V-Twin Mfg
$639.57Machined Knucklehead rocker arm set.For use on the 1936-1937 valve spring cup and cap style covers, where the rocker arms will be exposed. The outer diameter of the rocker arm is turned down to .80" on the center portion, excluding the seal surface area...$639.57
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.