Motorcycle Engine
Colony
#2734-3 Transmission 2nd Gear Retaining Bracket Kit 1935-1973 Harley-Davidson 45s - Parkerized
$7.87
Colony
#2308-2 Rocker Arm Cover to Frame Bracket Stud Kit 1978-1985 Harley-Davidson XL/XLCH - Zinc Plated
2
$20.31
Colony
#2185-4 Upper Bracket BoltAnd Lock Kit 1949-1984 Harley-Davidson FL 1958-1973 Servicar - CAD Plated
$19.36
Colony
#2286-1 Sprocket Shaft and Pinion Gear Shaft Nut 1936-E1981 Harley-Davidson Big Twins - Parkerized
$8.80
Colony
#2219-2 Point Cover Button Head Torx Screws 2004-Up Harley-Davidson Sportster - Chrome Plated
$4.38
British Standard
Pushrod Tube Seal Kit - Triumph 650
18
$30.56
British Standard
Ignition Pillar Bolt - Triumph / BSA
7
$9.20
British Standard
Engine and Transmission Lock Tab Set - 1963 - 1972 Triumph 650 with 4 Speed Gearbox
14
$25.25
Colony
#9883-20 Motor Case Flanged Hardware Kit 1996-Up Harley-Davidson Big Twin Evo - Chrome Plated
$43.45
Colony
#9926-17 Upper & Lower Motor Mounting Allen Kit 1970-1984 Harley-Davidson Big Twin - Chrome Plated
$39.11
Colony
#2011-8 Head Bolt Set 12 Point 1985-1991 Harley-Davidson Big Twin 1986-1992 XL - Chrome Plated
2
$109.99
Colony
#2140-40 Early Style Pushrod Cover Adaptor Kit 1990-2003 Harley-Davidson Sportster - Chrome Plated
1
$155.00
Colony
#2091-12 Replacement Pushrod Covers Late 1979-1984 Harley-Davidson Shovelhead - Chrome Plated
2
$70.39
Colony
#2116-15 Lower Front Hex Head Motor Mount Kit 2000-Up Harley-Davidson Softail - Chrome Plated
1
$58.20
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.