What retaining screws does this tappet guide use?

This Twin Power tappet guide is machined to accept the later style 1/4"-20 retaining screws, commonly used from 1976 through 1984. If you are using it on an earlier engine, you may need a different screw set.

Can I use this tappet guide on my 1970 Harley-Davidson?

Yes, you can use this tappet guide on 1936-1976 engines. For those earlier models, you will need to use the P/N 041602 Allen screw set to ensure proper installation.

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Twin Power 66-E81 83-84 Shovelhead Chrome Rear Tappet Guide Replaces H-D 18602-80

Specifications

Brand: TwinPower
Part #: 601553

Twin Power 66-E81 83-84 Shovelhead Chrome Rear Tappet Guide Replaces H-D 18602-80

Name: Twin Power 66-E81 83-84 Shovelhead Chrome Rear Tappet Guide Replaces H-D 18602-80
Brand: TwinPower
SKU: twinpower-twin-power-66-e81-83-84-shovelhead-chrome-rear-tappet-guide-replaces-h-t14-610593
Price: 117.75 USD
Availability: InStock

$117.75

In Stock

Twin Power 66-E81 83-84 Shovelhead Chrome Rear Tappet Guide Replaces H-D 18602-80. Chrome-plated for durability and a clean look.

Key Features

Fits 1966-1984 Shovelhead models.
Chrome-plated steel construction resists corrosion.
Machined to accept late 1976-1984 1/4"-20 retaining screws.
Replaces Harley-Davidson part number 18602-80.
Can be used on earlier 1936-1976 engines with P/N 041602 Allen screw set.
Requires removal of tappet guide evacuation lines on 1981-1982 engines.

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Will this fit your vehicle?

Product Details

When you're rebuilding the top end of your Shovelhead engine, getting the valve train components right is key. This chrome rear tappet guide from Twin Power is designed to replace the stock Harley-Davidson part number 18602-80, fitting a wide range of Shovelhead models from 1966 through 1984.

This tappet guide is made from chrome-plated steel, offering a solid build that resists corrosion and looks sharp inside your engine. It's machined to accept the later style 1/4"-20 retaining screws used from 1976 to 1984. If you're working on an earlier 1936-1976 engine, you can still use this guide by adding the P/N 041602 Allen screw set. For 1981-1982 models, you'll need to remove the tappet guide evacuation lines for proper fitment.

This part is a direct replacement for many Harley-Davidson models including the FLHS Electra Glide Sport, FLHTC Electra Glide Classic, and FXST Softail Standard, ensuring a proper fit when you're putting your engine back together.