Motorcycle Engine
Colony
#8783-8-P Cam Cover Smooth Allen Screw Kit 1971-1985 Harley-Davidson Sportster - Chrome Plated
1
$18.62
Colony
#2224-8-P Lifter Base Smooth Allen Screw Kit 2004-Up Harley-Davidson Sportster - Chrome Plated
$17.88
Colony
#9946-20 Cam Cover Mounting Allen Kit 1999-Up Twin Cam Dyna/FLT 2000-Up Softail - Chrome Plated
1
$14.89
Colony
#9523-1 Oil Pump Check Valve Plug 1936-1980 Harley-Davidson Big Twin 1937-Up UL/45s - Chrome Plated
2
$12.74
Colony
#2170-9 Water Pump Cover Thermostat Allen Hardware Kit 2002-Up Harley-Davidson VRSC - Chrome Plated
$12.67
Colony
#8702-2 Oil Pump Check Valve Plug 1936-1980 Harley-Davidson Big Twins OEM #26362-36 - Chrome Plated
1
$12.34
James Gaskets
Primary Cover Gasket 1952-1969 Harley-Davidson XL
$12.32
Colony
#8819-4 Clutch & Brake Lever Pivot Screw Kit 1941-1964 Harley-Davidson Big Twin/45s - CAD Plated
1
$12.10
James Gaskets
Points Cover Gasket 1971-1978 Harley-Davidson Big Twin
1
$1.34
Colony
#8402-2 Point Cover Acorn Head Screws 1971-Up Harley-Davidson Shovelhead & Sportster - Chrome Plated
3
$5.96
Colony
#9527-1 Oil Pump Bypass Valve Plug 1936-1952 Harley-Davidson Big Twin 1937-Up UL/45s - CAD Plated
$9.56
Colony
#9524-1 Oil Pump Check Valve Plug 1936-1980 Harley-Davidson Big Twin 1937-Up UL/45s - CAD Plated
$9.56
British Standard
Rotor Key - Triumph Unit 650 750
3
$10.13
The Heart of Your Build: Custom Motorcycle Engine Parts
The engine is the soul of your motorcycle, and keeping it running strong is what it's all about. Whether you're rebuilding a classic ironhead motor for sale you just scored or boosting the pe...
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Motorcycle Engine FAQ
I found a Sportster engine for sale. What are the first things I should check or replace?
When starting with a used engine of unknown history, it's wise to at least perform a top-end refresh. This typically includes new gaskets, checking cylinder and piston tolerances, and inspecting the valve train. This gives you peace of mind and a reliable starting point.
What are the easiest ways to get more power from my stock Sportster engine?
The most common and effective "Stage 1" upgrades are improving airflow. This means installing a high-flow air cleaner and a less restrictive exhaust system. These two changes allow the engine to breathe more freely and will deliver a noticeable performance gain without ever opening up the motor itself.
I'm rebuilding my engine. How important is it to replace all the hardware?
While not always strictly necessary, it's highly recommended. Engine hardware is subject to countless heat cycles and stress, which can cause it to stretch and weaken over time. Using new, high-quality head bolts, case bolts, and other hardware ensures proper torque specs and a leak-free, reliable engine for years to come.