What is the main function of a crankpin?

The crankpin is a crucial component of the crankshaft assembly. It connects the connecting rod to the crankshaft, allowing the linear motion of the piston to be converted into the rotational motion of the crankshaft.

Does this crankpin come with any hardware?

This product listing is for the standard size tapered crankpin only. Any necessary nuts, washers, or other associated hardware would need to be sourced separately.

What is the difference between a standard size and an oversized crankpin?

Standard size means the crankpin is manufactured to the original equipment manufacturer's specifications. Oversized crankpins are used when the crankshaft journals have been machined to a larger diameter due to wear or damage during an engine rebuild.

Questions? Call Us:631-982-0042

M-F 8AM-4PM ET

Trusted Since 1957

Est. 1957

S&S Cycle 81-99 BT 1.249in Tapered Crankpin

1 / 2

Specifications

Brand: S&S Cycle
Part #: 34-2102
UPC: 34-2102

S&S Cycle 81-99 BT 1.249in Tapered Crankpin

Name: S&S Cycle 81-99 BT 1.249in Tapered Crankpin
Brand: S&S Cycle
Price: 165.67 USD
Availability: InStock

$165.67

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle 81-99 BT 1.249in Tapered Crankpin for Harley-Davidson Big Twin engines.

Key Features

Fits 1981-1999 Harley-Davidson Big Twin and S&S 96, 107, 113 V-series engines.
Standard size tapered crankpin with a 1.249 inch diameter.
Replaces OEM part number 23961-80A.
Well-built component for engine crankshaft assembly.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

If you're rebuilding the crankshaft assembly on your 1981-1999 Harley-Davidson Big Twin or an S&S 96, 107, or 113 V-series engine, this standard size tapered crankpin is what you need. It's designed to replace the original equipment part, ensuring a proper fit and function for your engine's internal components.

This crankpin is built to the original specifications, measuring 1.249 inches in diameter. It's a well-built component that's essential for the correct timing and operation of your engine's rotating assembly. When you're working on the heart of your motorcycle, using the right parts makes all the difference for a reliable rebuild.

This part fits a wide range of Harley-Davidson models from 1981 through 1999, including popular bikes like the FLHTC Electra Glide Classic, FLSTC Heritage Softail Classic, and FXD Dyna Super Glide. Make sure to verify fitment for your specific year and model.