XYWZV transmission cooler lines 6AN 2-pack — 7ft PTFE hoses, stainless braid & CNC fittings

XYWZV 2Set 6AN PTFE transmission cooler lines are a complete replacement bundle of two 7-foot PTFE hoses with stainless braid and matched AN fittings designed to upgrade or repair transmission cooling on a wide range of GM and other automatic transmissions.

This kit supplies two full-length AN6 (6AN) PTFE-lined transmission cooler hoses, CNC-machined aluminum fittings, and adapters to adapt to common threaded ports. Built for high heat and pressure, the hoses combine a PTFE inner core with a stainless-steel braid and a nylon outer jacket for abrasion resistance and long service life. The package is intended for customers replacing factory rubber lines, building a custom cooler loop, or prepping a vehicle for towing or motorsport use.

What transmissions and vehicles will these 6AN PTFE lines fit?

These hoses are manufactured to be compatible with many common automatic transmissions by using AN6 hose ends and included adapters for 1/2" x 20 and 1/4" NPT connections. They are commonly used with 4L60, 700R4, TH350, TH400, CBC350 and 3L80 family installations and other applications that accept AN6 hardware.

• Includes AN6 male-to-1/2" x 20 male inverted adapters and AN6-to-1/4" NPT 90° fittings
• Two 7 ft hose lengths suitable for most routing layouts
• Commonly replaces factory rubber cooler lines or augments aftermarket coolers

How durable are the hoses under heat, pressure and road use?

The hoses combine a PTFE inner liner with a stainless-steel braid and a black nylon outer jacket to resist abrasion, chemical exposure and high temperatures. Rated for a working pressure up to 3,000 psi and a burst pressure near 10,000 psi, they are designed to handle heavy-duty and high-temperature environments.

• Temperature range: -76°F to 446°F (-60°C to 230°C)
• PTFE inner core for chemical compatibility and smooth flow
• Stainless braid plus nylon jacket for abrasion and UV resistance

What fittings and adapters come with the kit, and how do they connect?

The bundle ships with two AN6 straight hose ends pre-installed on the 7 ft hoses, plus two AN6 male to 1/2" x 20 male inverted fittings and two AN6-to-1/4" NPT 90° fittings to adapt to common cooler ports. All aluminum fittings are 6061-T6 CNC machined and finished with black anodizing for corrosion resistance and consistent sealing geometry.

• 2 x AN6 straight hose assemblies (7 ft each)
• 2 x AN6 male → 1/2" x 20 male inverted adapters included
• 2 x AN6 → 1/4" NPT 90° adapters for tight fittings or threaded cooler ports

Can I install these myself, and what should I know before attempting it?

The PTFE tube and stainless braid produce a hose that is relatively stiff compared with ordinary rubber lines; professional installation is recommended unless you have experience handling AN hose assemblies. If you plan DIY installation, allow for precise routing, correct torque on fittings, and verify leak-free connections before road use.

• PTFE core resists kinking but is harder to bend — plan routing ahead
• Use proper torque values and thread sealants rated for transmission fluid if required
• If unsure, consider a shop installation; seller support and how-to video resources are available

Who is this for: This XYWZV 2-pack AN6 transmission cooler line bundle suits mechanics, restorers, and performance builders upgrading cooling systems on GM-based automatics or any application accepting AN6 fittings. It’s particularly useful for vehicles experiencing high transmission temperatures, custom cooler installations, trailer towing setups, and those replacing aged rubber lines with a longer-lasting PTFE/stainless solution.