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Dorman 904231 Diesel Fuel Injector Rail Plug for High Pressure Oil Rail

(Audi S4 2010-16, S5 2008-15, S8 2008-09; Ford F-250 Super Duty 2004-07, F-350 Super Duty 2004-07, Excursion 2003-05, E-350 Super Duty 2004-10 + 6 more models)

Manufacturer

Picture for manufacturer Dorman

Part Number

904231
19 reviews
Sale Price

$15.55

2 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Dorman 904231 Diesel Fuel Injector Rail Plug is a direct replacement component designed for diesel engines equipped with high-pressure oil activation systems. This plug seals the high-pressure oil rail ports, maintaining proper oil pressure required to power the fuel injectors and ensure optimal engine performance.

Key Features:

  • Direct replacement for OE plugs on diesel vehicles
  • Constructed from durable materials to withstand high-pressure oil system demands
  • Essential for repairing leaking high-pressure oil tubes that cause poor engine performance or no-start conditions
  • Includes sealing components to maintain proper oil rail pressure
  • Commonly replaced during oil galley service or when performing injector work

This injector rail plug is a necessary repair component when servicing diesel fuel injection systems. O-rings should be replaced when accessing the oil galley to prevent leaks and maintain system integrity. For complete high-pressure oil system repairs, related components such as high-pressure oil standpipes are sold separately.

Products specifications

Fits

Audi S4 2010-16, S5 2008-15, S8 2008-09; Ford F-250 Super Duty 2004-07, F-350 Super Duty 2004-07, Excursion 2003-05, E-350 Super Duty 2004-10, F-450 Super Duty 2005-07, F-550 Super Duty 2005-07, E-450 Super Duty 2005-08 + 3 more models

Feature - Benefit 1

O-Rings require replacement when going into the Oil Galley for Service

Feature - Benefit 2

Leaking high pressure oil tubes cause the engine to run poorly or not at all

Feature - Benefit 3

Direct fit replacement

Feature - Benefit 4

High pressure oil stand pipe also available, sold seperately

Outer Diameter (in)

0.52 In

Fitting 2 Thread Type

An

Package Contents

Rail Plug

Fitting Material

Metal

Fitting 1 Gender

Male

Fitting 1 Thread Type

An

Material

Metal

Color

Manganese Phosphate

Fitting 2 Gender

Male

Inside Diameter (in)

0.32 in

Length

3.1

First time user let’s see what happens. Easy to use so far.

The price was high could have been lower and shipping was high for a little round thing

Fast and easy check out

No issues

Very informative, easy to use.

Nice and quick.

Item arrived on and was correct part

Product is what I wanted, An is all good.

fast excellent service.

Easy to order and nice to know inventory quantity availability.

Was linked here by Amazon. I found the absolute best price on the item I was looking for, I had a confirmation as soon as I ordered it, and shipping as prompt. I would definitely recommend these guys and will be shopping here myself in the future.

Awesome pricing. Needed Pertonix setup for my wifes 62 Mercury Monterey Convertible S-55.

Great website, with definitely the lowest prices online. Their system kept me informed every step of the way on my order status. More than the average online store. Autoplicity is now my first stop for auto parts and accessories.

Great pricing, Great service, and Great variety !!! I highly reccomend this site!!!

In stock, fast delivery, painless!

so far so good

Quick and easy, with good price

Great prices, better than any competitors and shipped fast. You do pay for shipping, but the discount on the merchandise makes up for that! So far would purchase from them again!

Had the cheapest parts I could find, shipped within 2 days. Very reasonable shipping rates.

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