What specific Shovelhead models does this rocker arm fit?

This rocker arm is designed for Harley-Davidson Shovelhead models from 1966 to 1984. This includes various Electra Glide, Super Glide, and Low Rider variants from those years.

What is the function of this rocker arm?

This rocker arm serves as a direct replacement for the original H-D 17375-66 part. It is used for both the rear intake and front exhaust valve positions in the Shovelhead engine.

Is any special installation hardware included?

This product is the rocker arm itself. It is recommended to refer to the manufacturer's installation instructions for any specific hardware or procedures required for installation.

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Trusted Since 1957

Est. 1957

Twin Power 66-84 Shovelhead Shovelhead Rocker Arm Replaces H-D 17375-66 Rear Intake Front Exhaust

Specifications

Brand: TwinPower
Part #: 492861
UPC: 887337171555

Twin Power 66-84 Shovelhead Shovelhead Rocker Arm Replaces H-D 17375-66 Rear Intake Front Exhaust

Name: Twin Power 66-84 Shovelhead Shovelhead Rocker Arm Replaces H-D 17375-66 Rear Intake Front Exhaust
Brand: TwinPower
SKU: twinpower-twin-power-66-84-shovelhead-shovelhead-rocker-arm-replaces-h-d-17375-6-t14-630394
Price: 61.43 USD
Availability: BackOrder

$61.43

On Backorder — Expected to ship by Apr 18, 2026

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

Twin Power rocker arm for 1966-1984 Harley-Davidson Shovelhead models. Replaces H-D 17375-66.

Key Features

Fits 1966-1984 Harley-Davidson Shovelhead models.
Replaces Harley-Davidson part number 17375-66.
Functions as a rear intake and front exhaust rocker arm.
Manufactured to O.E.M. specifications and tolerances.

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Will this fit your vehicle?

Product Details

Manufactured to O.E.M. specifications and tolerances, this rocker arm is built to fit 1966-1984 Harley-Davidson Shovelhead models. It serves as a direct replacement for the H-D 17375-66 part, functioning as both a rear intake and front exhaust rocker arm. This well-built component is designed to maintain the original performance and feel of your Shovelhead engine.

When you're rebuilding or refreshing the top end of your Shovelhead, using parts made to factory specs ensures proper valve train geometry and function. This rocker arm is a solid option for getting your engine back to its intended operation, whether you're performing routine maintenance or addressing wear and tear. It's a straightforward replacement that helps keep your classic Harley running smoothly.