A-Premium Transmission Cooler Line Hose Assembly 45-inch for 2006–2008 F-150 & Lincoln Mark LT, OEM Fit

A-Premium inlet and outlet transmission oil cooler line hose assembly replaces damaged cooler lines on select 2006–2008 Ford F-150 and Lincoln Mark LT models equipped with an auxiliary oil cooler and no bypass valve.

This direct-replacement hose assembly restores the transmission oil feed and return connections between the transmission and auxiliary cooler. Engineered to the original fitment dimensions, the A-Premium kit is intended for vehicles listed in the compatibility notes and carries the manufacturer's reference numbers 624-551, 5801499, and 7L3Z7R081A. It arrives as a 45-inch assembly without gaskets or seals, so plan to reuse or replace any required fittings during installation.

Will this hose assembly fit my 2006–2008 Ford F-150 or Lincoln Mark LT?

This assembly is designed specifically for F-150s and Lincoln Mark LTs from model years 2006 to 2008 with V8 4.6L or 5.4L engines when the vehicle has an auxiliary oil cooler and does not have a bypass valve. Always check vehicle configuration and parts cross-references before ordering.

• Compatible models: Ford F-150 2006–2008 (4.6L and 5.4L V8)
• Also fits: Lincoln Mark LT 2006–2008 (5.4L V8)
• Required configuration: auxiliary oil cooler present, bypass valve absent
• Reference numbers to verify: 624-551, 5801499, 7L3Z7R081A

How do I install this inlet and outlet transmission oil cooler line hose?

Installation is generally straightforward for a mechanically inclined DIYer or pro technician: remove the old lines, route the new 45-inch assembly along the original path, and secure the fittings. Because the kit does not include gaskets or seals, have replacements on hand and torque fittings to manufacturer specs to prevent leaks.

• Length: 45 inches — route to match original line path
• Fitment type: direct replacement — no rerouting required
• Gaskets/seals: not included — obtain compatible seals prior to install
• Tools recommended: line wrenches, torque wrench, fluid catch pan

What materials and quality assurances come with the A-Premium hose assembly?

The line assembly is manufactured to meet the dimensional and connection standards of the original equipment it replaces, designed to handle transmission oil flow between the transmission and auxiliary cooler. A-Premium backs this product with a one-year unlimited-mileage warranty for added confidence after purchase.

• Direct-replacement construction for OEM-style fit and connections
• Engineered for transmission oil flow to and from auxiliary cooler
• Warranty: one-year unlimited-mileage guarantee from A-Premium
• Sold as assembly — does not include bypass valve or auxiliary cooler components

What should I check before ordering to avoid returns?

Confirm your truck has an auxiliary oil cooler and no bypass valve, and cross-check the part reference numbers with your vehicle’s service information. Verify the 45-inch length and the connection types match the original lines to ensure a correct fit and avoid installation delays.

• Verify vehicle: model year, engine size, and auxiliary cooler presence
• Confirm absence of bypass valve—product is incompatible if bypass valve installed
• Match reference numbers: 624-551, 5801499, 7L3Z7R081A
• Prepare replacement seals/gaskets if old ones are worn or missing

Who is this for: This A-Premium inlet and outlet transmission oil cooler line hose assembly is intended for owners and technicians servicing 2006–2008 Ford F-150 and Lincoln Mark LT trucks with V8 engines that use an auxiliary oil cooler without a bypass valve. It suits repair shops, DIY mechanics, and fleet maintenance teams who need an OEM-style, direct-replacement hose assembly backed by a one-year warranty. If your vehicle matches the listed fitment and you can source any required seals, this assembly provides a simple path to restore the transmission cooler line connections.