Injector Cup Billet Stainless Steel Sleeve Set 7.3L 94-03

Part Number:
RDP-F4TZ9F538A

Manufacturer:

$193.42
$179.88
(You save $13.54 )
Availability:
Rental Tool Ships Same Day

Riffraff Diesel Injector Cup Billet Stainless Steel Sleeve Set 7.3L 94-03

Now Offering our PATENTED Precision CNC Machined Stainless Steel Extreme Duty injector cups and are priced as a kit of 8.

Features:

  • CNC Machined for precise quality
  • USA Made Billet Stainless Steel 
  • 100% Designed and Manufactured in USA
  • Thicker wall in weak areas for longer lifespan 
  • Greatly increased durability versus stock brass

With your purchase of the cups, we offer you the option to rent the injector cup puller/installer for $75. The rental fee will be taken from the $499 rental tool deposit paid at checkout, with the remaining deposit refunded upon our receipt of the rental tool in good condition. Simply email us within 30 days when you finish with the tool and we will send you a pre-paid USPS shipping label to return the tool.* 

Our Patented puller allows you to remove the cups without removing the heads or using a slide hammer. Also, by using the tool to grab the cup, you can inspect each cup for damage once it has been removed. Other methods (typically a tap) are likely to damage the cup during the removal process and create shavings that end up in your cylinders. 

Our Patented install tool is really the breakthrough; rather than hammering on your new cups in tight spaces and hoping they are seated, simply use a socket and allow the tool to press the cup in. The tool allows for a completely seated cup every time; no guessing and no hammering, even on the back cylinders or e-series vans. To ensure our install tool doesn't deform your new cup as our competitors tools do, it is machined to engage both the full surface of the cup bottom and the top lip. The tool also features an o-ring as a keeper to allow strategic placement of the cup in the injector bore instead of dropping it in and risking displacement of your sealant. In order to allow the cup to seat without turning in the head, the install tool is engineered to include a ball bearing to prevent cup rotation while being pressed in. 

We also have available for purchase the retaining compound and injector o-rings used by Ford and International when reinstalling the cups. 

*Please note that if the tool is not received back within 30 days from customer receipt, then a $25 late charge will be withheld from you deposit. If tool is not received back within 60 days, you will lose your entire deposit. 

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Set Includes - 8 SS Injector Cups and optional rental of the tool. 

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  • 5
    Great product

    Posted by Cody Grudowski on May 14th 2025

    Easy install looked great. Great quality. Definitely recommend these over factory bronze cups

  • 5
    Great Quality

    Posted by Gregory Malcom on Mar 24th 2025

    These things were awesome! Perfect fit and an obvious upgrade over the OEM ones!

  • 5
    Injector cup

    Posted by Andrew on Mar 21st 2025

    Went in smooth and no issues

  • 5
    Amazing Quality

    Posted by RANDAL BERG on Mar 19th 2025

    Had the dreaded fuel in the coolant. Bought these along with their rental tool and wow what amazing quality and craftsmanship. I am 100% pleased with these and would recommend them to anyone who had the issue I did.

  • 5
    No More diesel in the antifreeze

    Posted by Derick on Mar 6th 2025

    Good product, reasonable price when in with no problems

  • 5
    Stainless Steel Injector Cup Kit

    Posted by Jason Warren on Feb 19th 2025

    An exceptional upgrade for my original brass cups. The installation process was straightforward, and the quality is evident. The packaging and boxing reflect the high quality of the product.

  • 5
    Well made!

    Posted by William Blair on Jan 1st 2025

    Installed perfectly! No coolant leaks.

  • 5
    Stainless Steel Injector Cups

    Posted by Unknown on Dec 13th 2024

    Really can not recommend these strongly enough. Way better quality than stock brass cups. Do yourself a favor and just do it right the first time and have your truck reliable for another 30 years.

  • 5
    Great quality

    Posted by PETER MOREY on Nov 20th 2024

    I forgot to select the sealant, so wound up using Loctite 620 and the SF 7649 primer (needed for stainless steel). They were a breeze to install and the truck is running incredible now with the cups and Full Force reman injectors.