Select Your Ride

1
2
3

Wiseco Wrist Pin 20mm x 66mm for Harley-Davidson Roadster 1000 XLS 1979-1985 S521

Part Number: S521
WISECO
(No reviews yet) Write a Review
SKU:
S521
MPN:
S521
Condition:
New
Availability:
Ships Same Business Day
Weight:
0.20 LBS
On Sale
view larger
MSRP: $24.99
Now: $21.00
Was: $24.99
— You save $3.99
Prop 65 Warning Prop 65 Warning cancer & reproductive harm Price Match Call for more info on price match does not include 3rd party ads

Description

The Wiseco S521 wrist pin is engineered for Harley-Davidson Roadster engines that demand reliable, consistent performance under sustained high RPM operation. By pairing a lightweight design with superior thermal stability, this pin eliminates expansion-related timing inconsistencies that can rob you of power and precision. Whether you're rebuilding for street performance or competitive riding, the S521 delivers the durability and repeatability that separates quality builds from the rest.

  • Diameter: 20mm
  • Length: 66mm
  • Application: Harley XLS 1000
  • Years: 1979–1985
  • MPN: S521
  • Material: High-strength alloy
  • Lightweight construction
  • Minimal thermal expansion
  • Bolt-in fitment
  • Racing-proven reliability
View AllClose

Specs

MATERIAL:
SILICONE
OUTSIDE DIAMETER:
20 MM
OUTSIDE DIAMETER METRIC:
20 MM
LENGTH METRIC:
66 MM
UNITS:
EACH
APPLICATION:
PISTON
LENGTH:
66 MM
MATERIAL:
ALUMINUM
PRODUCT NAME:
WRIST PIN
RIDING STYLE:
STREET
View AllClose

0 Reviews

View AllClose

Fitment

Fitment for Wiseco Wrist Pin 20mm x 66mm for Harley-Davidson Roadster 1000 XLS 1979-1985 S521

View AllClose

FREE Shipping on orders of $99 or more!

Commercial Accounts

We offer tax-free commercial accounts, providing businesses with significant savings and streamlined benefits.

Details

Easy 30-Day Returns

We proudly offer 30-day easy returns, ensuring a hassle-free and convenient shopping experience for our customers.

Details

You May Also Like

Related Products

Related Products

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER

Privacy Policy | Terms of Use | Site Accessibility