Skip to Main Content
Home
About Us
My Account
Contact Us
Blog
Login
Register
0
Items -
$0
0
Items
Toggle navigation
Powerstroke Diesel
7.3 Powerstroke 1994-1997
7.3 Powerstroke Early 1999
7.3 Powerstroke 1999.5-2003
6.0 Powerstroke 2003-2007
6.4 Powerstroke 2008-2010
6.7 Powerstroke 2011-2022
3.0 Powerstroke 2018-2021
Cummins Diesel
5.9 12V Cummins Parts 1989-1993
5.9 12V Cummins Parts 1994-1998
5.9 24V Cummins Parts 1998.5-2002
5.9 Cummins Parts 2003-2007
6.7 Cummins Parts 2007.5-2023
5.0 Cummins Nissan Titan XD
3.9 Cummins 4BT
Duramax Diesel
LB7 Duramax 2001-2004
LLY Duramax 2004.5-2005
LBZ Duramax 2006-2007
LMM Duramax 2007.5-2010
LML Duramax 2011-2016
L5P Duramax 2017-2023
Shipping Forms
Military Discount
Core Buying
Help Resources
Rewards
Helpful Videos
Remote Help
Dealer Access
Become A Dealer
FFD Merchandise
Stickers
Shirts & Hoodies
Hats
More Products
Contact Us | Phone
Home
Powerstroke Diesel
7.3 Powerstroke 1999.5-2003
Transmission
Transmission Coolers
DieselSite 4R100 Transmission Cooler Bypass Delete Kit
Add to Wish List
Email a friend
7.3 Powerstroke DieselSite 4R100 Transmission Cooler Bypass Delete Kit
2
Review(s)
5
0
5
Write a Review
Your Price:
$79.00
Questions about this item? Ask here.
Part Number:
dst4RCDK
Usually Ships in 24 Hours
Fits:
7.3 Powerstroke 1999-2003
Put me on the Waiting List
Put me on the Waiting List
Quantity
+
-
Add to Cart
Description
Customer Reviews
Questions and Answers
CA Prop 65
From 1999-2003 the Ford 7.3L Automatic Transmission (4R100) had an external cooler bypass tube that redirected transmission fluid from the pump output back to the return line of the transmission. The bypassing of the cooler was supposed to happen until the fluid reached operating temps. Unfortunately, these bypass tubes commonly fail preventing transmission fluid flow to the cooler. Another design flaw is even when operating perfectly, the bypass never fully closes, meaning not all fluid is ever sent to the cooler, ever.
The result: transmission overheat.
Many delete kits are available on the market that eliminates the bypass tube and the common failure. However, these kits do not address the restriction in the banjo bolt. If you look at the cut away photo of the banjo bolt, you can see the spring and check ball which restricts about 75% of the fluid flow to the cooler. The spring and check ball was designed to allow the proper function of the cooler bypass tube. Once the bypass tube is deleted, this check ball and spring are no longer needed.
Will not work on E-Series 4R100 Cooler Bypass.
The Dieselsite cooler bypass delete for the 4R100 comes with new banjo bolts with no spring and check ball to allow 100% fluid flow to the cooler. You must still delete the bypass tube itself!
Rating Snapshot
Select a row below to filter reviews.
5 Stars
2
4 Stars
0
3 Stars
0
2 Stars
0
1 Stars
0
4 Stars
Clear Filter
×
Average Customer Ratings
5.0
Technician
Work great on our 1999 F450 . excellent Product.
Did you find this helpful?
Reviewed by:
Mike
from usa on 10/12/2023
5
Blueberry grower/ Beekeeper
Worked perfect. Pretty sure my old bypass tube was failing and making tranny run warmer than usual. Installed, threw bypass tube in trash and all is well!??
Did you find this helpful?
Reviewed by:
Captain Greg
from Axson, GA on 9/21/2023
5
Q:
Will this work on a early 99 f350 7.3 automatic?
Asked by:
Duzzi
- 1/3/2024
A:
Yes
Was this answer helpful?
0 of 0
Customer(s) found this Answer helpful.
Answer provided by:
FFD Staff (1/8/2024)
Questions about this item? Ask here.
Proposition 65 Warning Information -
P65Warnings.ca.gov
Reward Points
79 points will be rewarded to you when you buy this item.
Related Items
BD 1300601-DS Double Stacked Transmission Cooler
$687.95
Universal
Usually Ships in 24 to 48 Hours
Add to Wish List
Add To Cart
BD 1030607 Universal Transmission Cooler Electric Fan
$80.95
Universal - 80 Watts, 10 in, 800CFM
Usually Ships in 24 Hours
(1)
Add to Wish List
Add To Cart
Mishimoto MMTC-TF-2075 Universal Transmission Fluid Cooler
$94.95
Universal - 20 x 7.5 x .75 (3/8 Fittings)
Usually Ships in 24 Hours
Add to Wish List
Add To Cart
Dorman 624-253 Transmission Oil Cooler Line
$19.73
7.3/6.0 Powerstroke 1996-2005
Usually Ships in 24 Hours
Add to Wish List
Add To Cart
Dorman 624-430 Transmission Oil Cooler Line (Outlet)
$42.36
7.3/6.0 Powerstroke 1999-2004 (Passenger Side)(With Auxiliary Oil Cooler)
Usually Ships in 1-3 Days
Add to Wish List
Add To Cart
Derale 13001 Insta-Mount Nylon Cooler Mounting Kit
$5.99
Universal - Fits Many Electric Fans and Coolers
In Stock.
Add to Wish List
Add To Cart
Browse Similar Items
Powerstroke Diesel
>
7.3 Powerstroke 1999.5-2003
>
Transmission
×
Menu Links
Categories
×
Earn Rewards!