Engine
8416 parts
Harley engine parts for Evo, Twin Cam, Milwaukee-Eight and Sportster motors. Jump to cams, big bore kits, heads, gaskets and seals or engine covers. Free US shipping over $100.
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JE Pistons - 398735 - Piston Kit - 4.125" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 - Fits 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.125" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 Fits: 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide, 2018-2024 Softail Harley-Davidson...$498.99 -
JE Pistons - 398757 - Piston Kit - 4.250" Bore - 4.375" Stroke - 12.0:1 CR - 107" M8 - Fits 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.250" Bore - 4.375" Stroke - 12.0:1 CR - 107" M8 Fits: 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King, 2017-2018 Tri Glide, 2017-2018...$498.99 -
JE Pistons - 398756 - Piston Kit - 4.125" Bore - 4.375" Stroke - 12.0:1 CR - 107" M8 - Fits 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.125" Bore - 4.375" Stroke - 12.0:1 CR - 107" M8 Fits: 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King, 2017-2018 Tri Glide, 2017-2018...$498.99 -
JE Pistons - 398734 - Piston Kit - 4.080" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 - Fits 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.080" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 Fits: 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide, 2018-2024 Softail Harley-Davidson...$498.99 -
JE Pistons - 398736 - Piston Kit - 4.250" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 - Fits 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.250" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 Fits: 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide, 2018-2024 Softail Harley-Davidson...$498.99 -
JE Pistons - 398754 - Piston Kit - 3.937" Bore - 4.375" Stroke - 12.0:1 CR - 107" M8 - Fits 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King & More
Je Pistons
$498.99JE Pistons Piston Kit - 3.937" Bore - 4.375" Stroke - 12.0:1 CR - 107" M8 Fits: 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King, 2017-2018 Tri Glide, 2017-2018...$498.99 -
JE Pistons - 398755 - Piston Kit - 4.080" Bore - 4.375" Stroke - 12.0:1 CR - 107" M8 - Fits 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.080" Bore - 4.375" Stroke - 12.0:1 CR - 107" M8 Fits: 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King, 2017-2018 Tri Glide, 2017-2018...$498.99 -
JE Pistons - 398733 - Piston Kit - 4.075" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 - Fits 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.075" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 Fits: 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide, 2018-2024 Softail Harley-Davidson...$498.99 -
JE Pistons - 398728 - Piston Kit - 4.080" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 - Fits 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.080" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 Fits: 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King, 2017-2018 Tri Glide, 2017-2018...$498.99 -
JE Pistons - 398729 - Piston Kit - 4.125" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 - Fits 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.125" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 Fits: 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King, 2017-2018 Tri Glide, 2017-2018...$498.99 -
JE Pistons - 398731 - Piston Kit - 4.016" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 - Fits 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.016" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 Fits: 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide, 2018-2024 Softail Harley-Davidson...$498.99 -
JE Pistons - 398730 - Piston Kit - 4.250" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 - Fits 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.250" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 Fits: 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King, 2017-2018 Tri Glide, 2017-2018...$498.99 -
JE Pistons - 398732 - Piston Kit - 4.020" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 - Fits 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide & More
Je Pistons
$498.99JE Pistons Piston Kit - 4.020" Bore - 4.500" Stroke - 11.5:1 CR - 114" M8 Fits: 2017-2025 Electra Glide / Street Glide, 2017-2025 Road Glide, 2020-2022 Tri Glide, 2018-2024 Softail Harley-Davidson...$498.99 -
JE Pistons - 398727 - Piston Kit - 3.937" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 - Fits 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King & More
Je Pistons
$498.99JE Pistons Piston Kit - 3.937" Bore - 4.375" Stroke - 11.5:1 CR - 107" M8 Fits: 2017-2023 Electra Glide / Street Glide, 2017-2023 Road Glide, 2017-2022 Road King, 2017-2018 Tri Glide, 2017-2018...$498.99 -
Revolution Performance - RP9993-030 - Head and Base Gasket Kit - 100"/109" with 3-7/8" Bore - '84-'99 EVO Big Twin
Revolution Performance
$89.95Revolution Performance Head and Base Gasket Kit - 100"/109" with 3-7/8" Bore - '84-'99 EVO Big Twin Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999...$89.95 -
Revolution Performance - RP201-209W - Cylinder Kit - Monster Big Bore - 100" - Natural - Evolution Big Twin '84-'99
Revolution Performance
$1,499.95Revolution Performance Cylinder Kit - Monster Big Bore - 100" - Natural - Evolution Big Twin '84-'99 Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999...$1,499.95 -
Revolution Performance - RP201-215W - Cylinder Kit - Monster Big Bore -109" - Natural - Evolution Big Twin '84-'99
Revolution Performance
$1,499.95Revolution Performance Cylinder Kit - Monster Big Bore -109" - Natural - Evolution Big Twin '84-'99 Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999...$1,499.95 -
Revolution Performance - RP201-210W - Cylinder Kit - Monster Big Bore - 100" - Black w/Highlighted Fins - Evolution Big Twin '84-'99
Revolution Performance
$1,499.95Revolution Performance Cylinder Kit - Monster Big Bore - 100" - Black w/Highlighted Fins - Evolution Big Twin '84-'99 Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road...$1,499.95 -
Revolution Performance - RP201-212W - Cylinder Kit - 85" - Big Bore - Black with Highlighted Fins - Evolution Big Twin - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
Revolution Performance
$1,479.95Revolution Performance Cylinder Kit - 85" - Big Bore - Black with Highlighted Fins - Evolution Big Twin Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999...$1,479.95 -
Revolution Performance - RP201-220W - Cylinder Kit - 92" - Big Bore - Black with Highlighted Fins - Evolution Big Twin - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
Revolution Performance
$1,479.95Revolution Performance Cylinder Kit - 92" - Big Bore - Black with Highlighted Fins - Evolution Big Twin Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999...$1,479.95 -
Revolution Performance - RP201-204W - Cylinder Kit - 85" - Big Bore - Black with Highlighted Fins - Evolution Big Twin - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
Revolution Performance
$1,479.95Revolution Performance Cylinder Kit - 85" - Big Bore - Black with Highlighted Fins - Evolution Big Twin Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999...$1,479.95 -
Revolution Performance - RP301-207W - Piston Kit - 85" - 9.0:1 Flat Top - Evolution - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
Revolution Performance
$495.95Revolution Performance Piston Kit - 85" - 9.0:1 Flat Top - Evolution Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999 Softail, 1991-1998 Dyna, 1984-1991...$495.95 -
Revolution Performance - RP301-208W - Piston Kit - 85" - 10.3:1 Domed - Evolution - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
Revolution Performance
$495.95Revolution Performance Piston Kit - 85" - 10.3:1 Domed - Evolution Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999 Softail, 1991-1998 Dyna, 1984-1991...$495.95 -
KB Performance - KB297.STD - Piston Kit - 3.498" Standard - 8.3:1 CR - 4.250" Stroke - 80" Big Twin - Fits 1978-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR & More
KB Performance
$246.95KB Performance Piston Kit - 3.498" Standard - 8.3:1 CR - 4.250" Stroke - 80" Big Twin Fits: 1978-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR, 1979-1984 Big Twin Harley-Davidson. Full...$246.95 -
KB Performance - KB292.030 - Piston Kit - 3.188" +0.030" - 8.2:1 CR - 1000 XL - Fits 1972-1985 Sportster, 1983-1984 Harley-Davidson
KB Performance
$269.95KB Performance Piston Kit - 3.188" +0.030" - 8.2:1 CR - 1000 XL Fits: 1972-1985 Sportster, 1983-1984 Harley-Davidson Harley-Davidson. Full year/model list is on the Fitment tab. KB Performance's...$269.95 -
KB Performance - KB297.020 - Piston Kit - 3.498" +0.020" - 8.3:1 CR - 4.250" Stroke - 80" Big Twin - Fits 1978-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR & More
KB Performance
$246.95KB Performance Piston Kit - 3.498" +0.020" - 8.3:1 CR - 4.250" Stroke - 80" Big Twin Fits: 1978-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR, 1979-1984 Big Twin Harley-Davidson. Full...$246.95 -
KB Performance - KB297.010 - Piston Kit - 3.498" +0.010" - 8.3:1 CR - 4.250" Stroke - 80" Big Twin - Fits 1978-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR & More
KB Performance
$246.95KB Performance Piston Kit - 3.498" +0.010" - 8.3:1 CR - 4.250" Stroke - 80" Big Twin Fits: 1978-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR, 1979-1984 Big Twin Harley-Davidson. Full...$246.95 -
KB Performance - KB292.020 - Piston Kit - 3.188" +0.020" - 8.2:1 CR - 1000 XL - Fits 1972-1985 Sportster, 1983-1984 Harley-Davidson
KB Performance
$269.95KB Performance Piston Kit - 3.188" +0.020" - 8.2:1 CR - 1000 XL Fits: 1972-1985 Sportster, 1983-1984 Harley-Davidson Harley-Davidson. Full year/model list is on the Fitment tab. KB Performance's...$269.95 -
KB Performance - KB263.060 - Piston Kit - 3.437" +0.060" - 9.0:1 CR - 74" Big Twin - Fits 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin
KB Performance
$239.95KB Performance Piston Kit - 3.437" +0.060" - 9.0:1 CR - 74" Big Twin Fits: 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin Harley-Davidson. Full year/model list is on...$239.95 -
KB Performance - KB263.020 - Piston Kit - 3.437" +0.020" - 9.0:1 CR - 74" Big Twin - Fits 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin
KB Performance
$239.95KB Performance Piston Kit - 3.437" +0.020" - 9.0:1 CR - 74" Big Twin Fits: 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin Harley-Davidson. Full year/model list is on...$239.95 -
KB Performance - KB263.040 - Piston Kit - 3.437" +0.040" - 9.0:1 CR - 74" Big Twin - Fits 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin
KB Performance
$239.95KB Performance Piston Kit - 3.437" +0.040" - 9.0:1 CR - 74" Big Twin Fits: 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin Harley-Davidson. Full year/model list is on...$239.95 -
KB Performance - KB263.010 - Piston Kit - 3.437 +0.010" - 9.0:1 CR - 74" Big Twin - Fits 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin
KB Performance
$239.95KB Performance Piston Kit - 3.437 +0.010" - 9.0:1 CR - 74" Big Twin Fits: 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin Harley-Davidson. Full year/model list is on the...$239.95 -
KB Performance - KB263.030 - Piston Kit - 3.437" +0.030" - 9.0:1 CR - 74" Big Twin - Fits 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin
KB Performance
$239.95KB Performance Piston Kit - 3.437" +0.030" - 9.0:1 CR - 74" Big Twin Fits: 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin Harley-Davidson. Full year/model list is on...$239.95 -
KB Performance - KB263.050 - Piston Kit - 3.437" +0.050" - 9.0:1 CR - 74" Big Twin - Fits 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin
KB Performance
$239.95KB Performance Piston Kit - 3.437" +0.050" - 9.0:1 CR - 74" Big Twin Fits: 1955-1979 Electra Glide / Street Glide, 1965-1979 Softail, 1941-1979 Big Twin Harley-Davidson. Full year/model list is on...$239.95 -
KB Performance - 25014.STD - Ring Set - 4.250" Standard - 124"/128" M8 - Pair - Fits 2017-2024 Electra Glide / Street Glide, 2017-2024 Road Glide, 2017-2024 Road King & More
KB Performance
$48.95KB Performance Ring Set - 4.250" Standard - 124"/128" M8 - Pair Fits: 2017-2024 Electra Glide / Street Glide, 2017-2024 Road Glide, 2017-2024 Road King, 2017-2024 Tri Glide, 2017-2024 Freewheeler,...$48.95 -
KB Performance - KB920C.010 - Piston Kit - 3.498" +0.010" - 9.5:1 CR - Evolution Big Twin - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
KB Performance
$299.95KB Performance Piston Kit - 3.498" +0.010" - 9.5:1 CR - Evolution Big Twin Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999 Softail, 1991-1998 Dyna,...$299.95 -
Jims - 24029-KIT - Sprocket Shaft Spacers - Set of 8 - Fits 1958-1969 Electra Glide / Street Glide, 1955-1969 Big Twin, 1955-1957 Harley-Davidson
Jims
$124.15Jims Sprocket Shaft Spacers - Set of 8 Fits: 1958-1969 Electra Glide / Street Glide, 1955-1969 Big Twin, 1955-1957 Harley-Davidson Harley-Davidson. Full year/model list is on the Fitment tab. Jims'...$124.15 -
Pingel - RM2 - Rear Motor Mount - XL - Pair - Fits 1957-1981 Sportster, 1952-1956 Harley-Davidson
Pingel
$212.95Pingel Rear Motor Mount - XL - Pair Fits: 1957-1981 Sportster, 1952-1956 Harley-Davidson Harley-Davidson. Full year/model list is on the Fitment tab. Pingel's Xl Rear Motor Mount. Heavy-duty - made...$212.95 -
Jims - 26346-36 - Oil Pump Shaft - Big Twin - Fits 1958-1967 Electra Glide / Street Glide, 1941-1967 Big Twin, 1936-1957 Harley-Davidson
Jims
$49.80Jims Oil Pump Shaft - Big Twin Fits: 1958-1967 Electra Glide / Street Glide, 1941-1967 Big Twin, 1936-1957 Harley-Davidson Harley-Davidson. Full year/model list is on the Fitment tab. Jims' Oil Pump...$49.80 -
Jims - 35125-37 - Main Shaft Bearing Race - 4-Speed - '37-E'77 Big Twin
Jims
$112.50Jims Main Shaft Bearing Race - 4-Speed - '37-E'77 Big Twin Fits: 1958-1977 Electra Glide / Street Glide, 1941-1977 Big Twin, 1937-1957 Harley-Davidson Harley-Davidson. Full year/model list is on the...$112.50
About Engine
Harley Engine Parts for Rebuilds and Performance
From a fresh gasket set to a full big bore build, we stock the Harley engine parts you need to rebuild, maintain or wake up your motor. Match parts to your engine: Evo, Twin Cam, Milwaukee-Eight and Sportster parts don't swap across.
Shop Engine Parts
- Camshafts
- Big bore kits
- Cylinders
- Heads
- Pushrods
- Lifters
- Rockers
- Gaskets & seals
- Oil pumps
- Oil filters
- Motor mounts
- Engine covers
We carry engine parts from S&S Cycle, Drag Specialties, V-Twin Mfg, Alloy Art, HardDrive and Rocker Lockers. Pair your build with an air cleaner and exhaust that let it breathe.
Not Sure It Fits?
Year, model and engine all matter, and plenty of parts look the same but aren't. If you can't tell whether something fits your bike, hit us up with your year and model and we'll check it before you order.