Harley Shovel Engines

We dig Shovelheads


Easily install instant oil pressure in Harley Shovelhead engines. Replace your stock Harley oil pressure relief valve spring with the SP-1. 

E.R.T. Products for Shovelheads

SP-1 Superpump-Kit

Harley Shovel & Evo oil pressure relief valve spring kit

 Install instant oil pressure in your Shovel. Replace the stock Harley oil pressure relief spring. Easy installation!   

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PJ-2 Pro-Just

Harley Shovel and Evo adjustable relief valve spring cap with relief spring. E.R.T. Products

 Precise adjustable oil pressure for Shovel engines. Replaces the stock Harley oil pressure relief cap & oil pressure relief spring. 

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PG-1T Pro-Gauge &Tappet Adapter

Harley liquid filled oil pressure gauge kit. E.R.T. Products

 The Harley-Davidson oil pressure gauge!   Tough, beautiful & accurate. This Stainless bodied 1 1/2" liquid filled oil pressure gauge is awesome!  

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CV-1 Check Valve Kit

Harley Shovel & Evo oil pump check valve kit. Prevent wet sumping in Harley engines. E.R.T. Products

 Stop blowing excess crankcase oil out of you breather! E.R.T. Products has the parts & shows you how to fix this dangerous yet simple problem once and for all. 

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More info


Click on each picture for installation details and more info on E.R.T. Products for Shovels

Harley Davidson is What We Do

Since 1990, we've specialized in increasing Harley oil pressure. This cures noisy lifters and gains horsepower! Improve performance and quiet your engine at the same time. 

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