World's Largest Aftermarket Motorcycle Parts and Accessories Superstore!


Low Compression Piston Kit

Select your motorcycle to guarantee fitment! Select A Motorcycle

Low Compression Piston Kit
Product may vary from photo(s).


The Gold Club is our premier membership program. For most items members receive 10% off every day, plus exclusive sales and benefits just for members. More Info Gold Club Price: $106.19

Free Ground Shipping

Checking availability...

– Order in the next to ship today

J&P Part: 430-446


Low Compression Piston Kit

• Includes 2 cast alloy pistons, genuine Hastings 3-piece ring set, 2 wrist pins and 4 circlips

• All Big Twin and Sportster pistons have a steel expansion control strut cast in

Product Specs

Compression Ratio: 8.4:1

Dimension Oversize: Std.

Displacement Size CC: 1000cc

Material: Alloy

Material Processing Method: Cast

Piston Bore Size: 3-3/16″

Sold in Units: Kit


Select your motorcycle to guarantee fitment! Select A Motorcycle

Click (+) to view all compatible models

Harley-Davidson® Models

Sportster 1000 Café Racer XLCR1000 : 1977–1978
Sportster 1000 Electric Start Anniversary XLH1000 : 1978
Sportster 1000 Electric Start XLH1000 : 1972–1985
Sportster 1000 Kick Start XLCH1000 : 1972–1979
Sportster 1000 Roadster XLS1000 : 1979–1985
Sportster 1000 Touring XLT1000 : 1977–1978
Sportster 1000 XLX1000 : 1983–1985
Fast Free Shipping on Orders at $99.99 & Over
Free Tech
120 Day

Select Your Motorcycle

Live Help

Get Help From Our Industry Experts

Call Us 24/7 1-800-318-4823

Help / FAQs