Motorcycle Engine
Colony
#9928-20 Motor Mounting Allen Kit 1988-2006 Harley-Davidson FLT/FLHT/FXR/FXRS - Chrome Plated
1
$44.89
British Standard
Points Cover Gasket Triumph Twins and Singles
9
$6.41
Colony
#3036-22 Upper and Lower Motor Mount Kit 1937-1947 Harley-Davidson Big Twin Side Valve - Parkerized
1
$43.82
British Standard
Timing Cover Gasket for unit Triumph Motorcycles OEM #71-7263
8
$10.64
Colony
#2370-8 Cylinder Head Motor Brace Mounting Kit 1966-1984 Harley-Davidson Shovelhead - CAD Plated
2
$20.85
Colony
#2369-8 Cylinder Head Motor Brace Mounting Kit 1948-1965 Harley-Davidson Panhead - CAD Plated
6
$19.48
Colony
#2015-6 Oversize Valve Cover Screws 1948-1965 Harley-Davidson Panhead W/Steel D Rings - CAD Plated
$19.12
Colony
#9523-1 Oil Pump Check Valve Plug 1936-1980 Harley-Davidson Big Twin 1937-Up UL/45s - Chrome Plated
2
$12.74
James Gaskets
Primary Cover Gasket 1977-1990 Harley-Davidson XL
$12.18
Colony
#3049-7 Chain Oiler Adjusting Screw Kit 1932-E1950 Harley-Davidson Twins 1932-1957 45's - Parkerized
$12.09
Colony
#8204-4 Hydraulic Lifter Converters Eliminate Hydraulic Units 1953-Up Harley-Davidson Big Twins
$34.05
James Gaskets
Primary Cover Gasket 1967-1976 Harley-Davidson XL
3
$6.73
British Standard
Sludge Tube for your 650cc 750cc Triumph Motorcycle OEM #70-3903
6
$31.79
Colony
#9946-20 Cam Cover Mounting Allen Kit 1999-Up Twin Cam Dyna/FLT 2000-Up Softail - Chrome Plated
1
$14.89
Colony
#8474-8 Cylinder Base High Crown Cap Nut Set 1978-1984 Harley-Davidson Shovelhead - Chrome Plated
$29.34
British Standard
Triumph Cylinder Base Nut Set Unit 650cc 1969-1972 OEM #S692 21-0692
6
$29.25
Colony
#2745-2 Oversized Ignition Timer Cover Stud Kit 1972-1979 Harley-Davidson Big Twin - Zinc Plated
$13.92
Colony
#2070-1 Oil Line Fitting Chrome 1/8 NPT Thread for 3/8 inch Hose OEM #63533-41 - Chrome Plated
6
$4.54
Colony
#9757-2-P Generator Smooth Allen Mounting Screws 1957-1970 Harley-Davidson Sportster - Chrome Plated
$13.55
British Standard
Allen Sludge Trap Plug for your Triumph Motorcycle
10
$27.02
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.