Holley Regulator Diaphragm Repair Kit

$ 8.35

Score By Feature

Based on 115 ratings

Value for money

9.08

Giftable

9.00

Packaging

9.10

Customer service

8.82

OveReview Final Score

How Our Score Is Calculated

Product Description

The kit is used to replace the diaphragm inside a fuel pressure regulator

A fuel pressure regulator for Holley

Included are the diaphragms

The low and high pressure springs are included

This product lasts a long time

The type of fit is Based on the type of vehicle

Questions & Answers

Under what pressure will you be able to set fuel pressures using the low pressure spring?

A Psi of 4) is required.

Do you think this kid will be able to replace the 12-year-old Do you know the 804 number ?

The 804 low pressure regulator is a low pressure regulator. For low pressure, this kit is right for you.

In what size does it come?

The part fits only the 12-inch model The 803 or 12-digit code There are 804 fuel pressure regulators. Thank you for your interest in the product.

Selected User Reviews For Holley Regulator Diaphragm Repair Kit

A crappy gas station

5/5

In our facility, three Holley regulators are in service. We find that E10 pump gas gums up the regulators if they are left in between racing seasons. We have to remove and clean the regulators after they are taken apart. We found that the diaphragm was weak and separating after a cleaning, so we have been replacing it annually since then. In some cases, ethanol attacks the diaphragms of mechanical fuel pumps. We chose Holley regulators because we believed they would be able to handle methanol and alcohol. The fault does not lie with Gas that is caustic and nasty is to blame.

Ana Newman

| Jan 02, 2021

Fit like a glove

5/5

This was the parts I needed to replace my Three old diaphragms of the regulator were blown out by the electric pump. I ordered this rebuild kit and it has been holding up well. Tires and rubber fatigue over time, and this is exactly what you need to ensure the product remains effective.

Tomas Baker

| May 04, 2021

Fit like a glove

5/5

The fuel pressure regulator was the right fit for me. Unfortunately I was unable to determine a model number because my regulator does not have a number on it.

Zahir Gallegos

| Oct 19, 2020

It does what it is supposed to do

5/5

Having to replace the diaphragm on a regulator is something I've been forced to do twice in 11 years due to the gas that we are using right now. The pressure resulting from the pressure is no longer controlled by the hardening, stiffening, and pulsations of the polymer. This is a simple fix so that you don't need to buy.

Annika Alvarez

| Aug 27, 2020

Having said that, the fix is just what the issue needed, and it is a little pricey compared to the alternative

3/5

I believe the new regulator is only 30 dollars so this part is 30% of the price of the Holly regulator, not 10 dollars, especially if you have to replace it ever 5 years or so. Buying a new regulator will save you the hassle of adjusting and adjusting every 5 years.