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Original price $74.99 - Original price $74.99
Original price
$74.99
$74.99 - $74.99
Current price
$74.99

Pinion Right Side Case Race Standard - Eastern A-24585-57 - OEM 24585-57 - Ironhead 1957-1976

Eastern

Eastern #: A-24585-57 · OEM #: 24585-57 Machined and ground to factory specifications. Fitment: 1957-1976 XL

Original price $74.99 - Original price $74.99
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$74.99
$74.99 - $74.99
Current price
$74.99
Original price $89.99 - Original price $89.99
Original price
$89.99
$89.99 - $89.99
Current price
$89.99

Pinion Right Side Case Race.005 - Eastern A-24601-40 - OEM 24601-40

Eastern

Eastern #: A-24601-40 · OEM #: 24601-40, 413-40AC Machined and ground to factory specifications. Fitment: 1940-1954 FL

Original price $89.99 - Original price $89.99
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$89.99
$89.99 - $89.99
Current price
$89.99
Original price $29.99 - Original price $29.99
Original price
$29.99
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Current price
$29.99

Idler Gear Stud Kit - V-Twin 10-0197 - Ironhead 1957-1985

V-Twin Manufacturing

Kit includes cam chest idler gear stud with two bushings and two fiber red washers. Fitment: 1957-1985 XL

Original price $29.99 - Original price $29.99
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$29.99
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Current price
$29.99
Original price $339.99 - Original price $339.99
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$339.99
$339.99 - $339.99
Current price
$339.99

S&S Supreme Rod Set - S&S Cycle 34-7210

S&S Cycle

S&S Cycle #: 34-7210 Supreme rod set. Fitment: 1981-1984 FL 1981-1984 FX

Original price $339.99 - Original price $339.99
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$339.99
$339.99 - $339.99
Current price
$339.99
Original price $74.99 - Original price $74.99
Original price
$74.99
$74.99 - $74.99
Current price
$74.99

Sifton Hydraulic Tappet Unit - Sifton 11460 - OEM 17920-53

Sifton

Sifton #: 11460 · OEM #: 17920-53 Inserts are precision machined and designed to meet OEM specifications to ensure that the valve train operates wi...

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Original price $74.99 - Original price $74.99
Original price
$74.99
$74.99 - $74.99
Current price
$74.99
Original price $299.99 - Original price $299.99
Original price
$299.99
$299.99 - $299.99
Current price
$299.99

Connecting Rod Assembly - V-Twin 10-0188 - OEM 24281-83 - Evolution 1984-1998

V-Twin Manufacturing

OEM #: 24281-83 Assembly includes new rods 2 hole crank pin nuts alloy cages and standard rollers fitted and assembled. Piston pin bushings are ins...

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Original price $299.99 - Original price $299.99
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$299.99
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$299.99
Original price $209.99 - Original price $209.99
Original price
$209.99
$209.99 - $209.99
Current price
$209.99

Sifton Hydraulic Tappet Unit - Sifton 40241 - OEM 17920-53

Sifton

Sifton #: 40241 · OEM #: 17920-53 Inserts are precision machined and designed to meet OEM specifications to ensure that the valve train operates wi...

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Original price $209.99 - Original price $209.99
Original price
$209.99
$209.99 - $209.99
Current price
$209.99
Original price $369.99 - Original price $369.99
Original price
$369.99
$369.99 - $369.99
Current price
$369.99

Connecting Rod Assembly - V-Twin 10-0196 - OEM 24275-80 - Ironhead 1981-1985

V-Twin Manufacturing

OEM #: 24275-80 Includes new rods crank pin nuts cages and standard rollers fitted and assembled. Piston pin bushings are installed and honed for s...

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Original price $369.99 - Original price $369.99
Original price
$369.99
$369.99 - $369.99
Current price
$369.99
Original price $349.99 - Original price $349.99
Original price
$349.99
$349.99 - $349.99
Current price
$349.99

Connecting Rod Assembly - V-Twin 10-0186 - OEM 24277-37

V-Twin Manufacturing

OEM #: 24277-37 Includes new rods crank pin nuts cages and standard roller fitted and assembled. Rod set includes step-crank pin for use in OEM fly...

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Original price $349.99 - Original price $349.99
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$349.99
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$349.99
Original price $39.99 - Original price $39.99
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$39.99
$39.99 - $39.99
Current price
$39.99

Crank Pin Lock and Nut Kit - Eastern A-23966-78 - OEM 23966-78

Eastern

Eastern #: A-23966-78 · OEM #: 23966-78 Kit includes 2 nuts 2 locks and mount screws. Fitment: 1954-1980 FL 1971-1981 FX

Original price $39.99 - Original price $39.99
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$39.99
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Current price
$39.99
Original price $29.99 - Original price $29.99
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$29.99
$29.99 - $29.99
Current price
$29.99

Crank Pin Nut and Lock Kit - Eastern A-23967-79 - OEM 23967-79 - Ironhead 1957-1981

Eastern

Eastern #: A-23967-79 · OEM #: 23967-79 Kit includes 2 nuts 2 locks and mount screws. Fitment: 1957-1981 XL

Original price $29.99 - Original price $29.99
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$29.99
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Current price
$29.99
Original price $409.99 - Original price $409.99
Original price
$409.99
$409.99 - $409.99
Current price
$409.99

Connecting Rod Assembly - V-Twin 10-0176 - OEM 24275-57 - Ironhead 1957-1980

V-Twin Manufacturing

OEM #: 24275-57 Includes new rods crank pin nuts cages and standard rollers fitted and assembled. Piston pin bushings are installed and honed for s...

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Original price $409.99 - Original price $409.99
Original price
$409.99
$409.99 - $409.99
Current price
$409.99
Original price $299.99 - Original price $299.99
Original price
$299.99
$299.99 - $299.99
Current price
$299.99

Connecting Rod Assembly - V-Twin 10-0175 - OEM 24281-80

V-Twin Manufacturing

OEM #: 24281-80 Includes new rods crank pin nuts alloy cages and standard rollers fitted and assembled. Piston pin bushings are installed and honed...

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Original price $299.99 - Original price $299.99
Original price
$299.99
$299.99 - $299.99
Current price
$299.99
Original price $159.99 - Original price $159.99
Original price
$159.99
$159.99 - $159.99
Current price
$159.99

Replica Polished Tappet Block Set - V-Twin 10-0182 - OEM 18607-57 - Ironhead 1957-1985

V-Twin Manufacturing

OEM #: 18607-57 Replica tappet block 4 piece set for 1957-1984 in polished finish. Fitment: 1957-1985 XL

Original price $159.99 - Original price $159.99
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$159.99
$159.99 - $159.99
Current price
$159.99
Original price $29.99 - Original price $29.99
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$29.99
$29.99 - $29.99
Current price
$29.99

Connecting Rod Roller Bearing Set.0008 - V-Twin 10-0164 - Sportster 1952-1986

V-Twin Manufacturing

Bearing set.0008 oversize and contains 17 long and 34 short rollers for use with alloy cages. Fitment: 1952-1956 K 1957-1986 XL

Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price
$29.99
Original price $299.99 - Original price $299.99
Original price
$299.99
$299.99 - $299.99
Current price
$299.99

Connecting Rod Assembly - V-Twin 10-0174 - OEM 24281-74A

V-Twin Manufacturing

OEM #: 24281-74A Includes new rods crank pin nuts alloy cages and standard rollers fitted and assembled. Piston pin bushings are installed and hone...

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Original price $299.99 - Original price $299.99
Original price
$299.99
$299.99 - $299.99
Current price
$299.99
Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price
$329.99

Connecting Rod Assembly - V-Twin 10-0173 - OEM 24281-41A

V-Twin Manufacturing

OEM #: 24281-41A Includes new rods crank pin nuts alloy cages and standard rollers fitted and assembled. Piston pin bushings are installed and hone...

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Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price
$329.99
Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price
$29.99

Connecting Rod Roller Bearing Set.0004 - V-Twin 10-0162 - Sportster 1952-1986

V-Twin Manufacturing

Set is.0004 oversize and contains 17 long and 34 short rollers for use with alloy cages. Fitment: 1952-1956 K 1957-1986 XL

Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price
$29.99
Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
Current price
$34.99

Connecting Rod Roller Bearing Set.0008 - V-Twin 10-0156

V-Twin Manufacturing

Torrington bearing set is.0008 oversize with 18 long and 36 short rollers. Roller bearing set supplies enough rollers for application only for use ...

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Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
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$34.99
Original price $24.99 - Original price $24.99
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$24.99
$24.99 - $24.99
Current price
$24.99

Connecting Rod Roller Bearing Set Standard - V-Twin 10-0160 - Sportster 1952-1986

V-Twin Manufacturing

Set is standard size and contains 17 long and 34 short rollers for use with alloy cages. Fitment: 1952-1956 K 1957-1986 XL

Original price $24.99 - Original price $24.99
Original price
$24.99
$24.99 - $24.99
Current price
$24.99
Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price
$29.99

Connecting Rod Roller Bearing Set.0006 - V-Twin 10-0163 - Sportster 1952-1986

V-Twin Manufacturing

Bearing set.0006 oversize and contains 17 long and 34 short rollers for use with alloy cages. Fitment: 1952-1956 K 1957-1986 XL

Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price
$29.99
Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
Current price
$34.99

Connecting Rod Roller Bearing Set.0004 - V-Twin 10-0154

V-Twin Manufacturing

Torrington bearing set is.0004 oversize with 18 long and 36 short rollers. Roller bearing set supplies enough rollers for application only for use ...

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Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
Current price
$34.99
Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price
$29.99

Connecting Rod Roller Bearing Set.0008 - V-Twin 10-0148 - Shovelhead 1973+

V-Twin Manufacturing

Torrington bearing set is.0008 oversize with 17 long and 34 short rollers. Roller bearing set supplies enough rollers for application only for use ...

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Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price
$29.99
Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
Current price
$34.99

Connecting Rod Roller Bearing Set.0002 - V-Twin 10-0153

V-Twin Manufacturing

Torrington bearing set is.0002 oversize with 18 long and 36 short rollers. Roller bearing set supplies enough rollers for application only for use ...

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Original price $34.99 - Original price $34.99
Original price
$34.99
$34.99 - $34.99
Current price
$34.99
More about Engine

Our Engine catalog covers Harley-Davidson Big Twin and Sportster models, with everything organized below so you can go straight to the part you need. Sourced primarily from Colony, with genuine OEM-spec pieces filling in where it counts.

Everything below is organized by sub-category - Seals, Gaskets & O-Rings, Rocker Box, Cam, Piston, Tools, and Oil Pump - so you can jump straight to what your build needs next.

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