99-01 Cobra/03-04 Mach 1 Coolant Crossover Tube by LMR® Products

Price: 119.99 USD
Availability: InStock

99-01 Cobra/03-04 Mach 1 Coolant Crossover Tube

1996-2004 Mustang: 4V 4.6L Replacement Coolant Crossover Tube - How To Install

Replace the cracked or leaking coolant crossover tube in your 1999-01 SVT Cobra or 2003-04 Mach 1 with this high-quality reproduction from industry leader LMR!

Item #LRS-8548A-K

Everyday Low Price: $119.99

In Stock

This item is returnable. Details

Free Shipping over $99

Add to Cart

× close

Images

LMR showroom & will call pickup service will be closed beginning Monday 9/21/26 for renovations until further notice. Need help? Contact Us.

Benefits

Replaces Cracked Or Leaking Crossover Tube
Restores Cooling System
Allows Proper Coolant Flow

Features

Black E-Coat Finish
O-ring Seals Pre-installed
Steel Construction
Correct Diameter Fittings

What's in the Box

(1) Coolant Crossover Tube
(1) Tube Thread Sealant w/ PTFE

LMR Coolant Crossover Tube - Cobra/Mach 1

Restore your New Edge cooling system with LMR’s 1999-2001 SVT Cobra or 2003-2004 Mach 1 coolant crossover tube! This high-quality reproduction crossover tube is designed to replace the cracked or leaking factory unit commonly found on these Mustangs. The original OE tube was susceptible to rusting from the inside out due to the lack of an internal protective coating, often leaving owners searching for hard-to-find used parts or costly NOS replacements. LMR’s solution is a durable reproduction crossover tube that features both internal and external corrosion-resistant coatings to help prevent future rust issues. Each tube is manufactured with the correct tubing diameters, factory-style mounting brackets, and proper seals to ensure a hassle-free installation.

LMR Quality

Late Model Restoration’s commitment to delivering quality, solution-based products is evident in every detail of this coolant crossover tube. Constructed from durable steel and finished with a satin black E-coat both inside and out, this tube is built to last. Precision-stamped and welded mounting brackets are positioned exactly like the factory unit for an OE-style fit and function. Factory dual sensor ports are retained, along with the original vent port on top of the tube. Preinstalled O-ring seals are included for convenience, as well as a block-off plug for applications where the factory sensor port is not used. LMR added a sensor port for use with aftermarket gauges or engine management systems. Installation is straightforward; simply remove the factory crossover tube, transfer your sensors, and install the new LMR replacement. Complete your engine cooling system refresh with a brand-new LMR coolant crossover tube for your 1999-2001 SVT Cobra or 2003-2004 Mach 1!

Suggested Parts

LMR Products Limited Warranty - LMR.com

Ford Mustang - 1999, 2000, 2001, 2002, 2003, 2004

Fitment Notice

Fits 1999-2001 SVT Cobra
Fits 2003-2004 Mach 1
Will NOT fit 2003-2004 SVT Cobra

1996-2004 Mustang: 4V 4.6L Replacement Coolant Crossover Tube - How To Install

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

1996-2004 Mustang GT 4.6 Heater & Coolant Hose Routing Diagram

Published 4/16/25
1999-2004 Ford Mustang Fluid Capacity

Published 9/8/16
How To Install 1996-2004 Mustang 4.6L 4V Replacement Coolant Crossover Tube

Published 7/31/26

California Residents:

WARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov

About This Brand

Late Model Restoration is dedicated to providing superior, solution-based products made from the highest quality materials for Ford Mustang , Ford Lightning, and Ford Bronco enthusiasts. Through extensive research, LMR® branded items are comprised of the best, most effective parts our team has found to save the customer time, money, and present a complete offering that is ready to be installed. Built on automotive enthusiasts, LMR® is driven by a deep passion for delivering peace of mind through convenient solutions to common issues. Rest assured that when you purchase an LMR® branded part, you will experience industry-leading service.