GXARTS AN-6 Stainless Steel Braided Transmission Cooler Lines 70" 2-Pack for 700R4/4L60 — Billet Adapters, Corrosion-Resistant

GXARTS 70" AN-6 stainless steel braided transmission cooler lines are a complete retrofit kit that replaces OEM soft lines for 700R4 and a range of 4L-series transmissions to improve durability and leak resistance. These braided cooler hoses and adaptors are designed for late-model GM and compatible Ford transmissions, supplied as two 70" stainless-steel braided hoses with AN-6 fittings and multiple billet adaptors to suit a variety of OEM ports and conversions. The kit targets owners who want stronger, longer-lasting transmission cooler plumbing than factory rubber hoses, offering corrosion-resistant stainless braid, anodized fittings, and included adapters to simplify installation on Turbo 350/400/200 series and many 700R4/4L60-family applications.

Will these lines fit my 700R4 or 4L60E transmission?

The kit is intended for 1996 and newer GM 700R4/4L60/4L60E/4L65E/4L80E transmissions and can also work with many Ford C4/C6/AOD applications with the included adaptors. Fitment depends on your transmission cooler port thread type; the kit provides multiple adaptor options to match common NPT and inverted flare fittings.

• Compatible with GM Chevy 1996–2021 700R4 and 4L-series transmissions.
• Includes AN-6 to 1/4" NPT and AN-6 to 3/8" NPT billet adaptors.
• Adapters for 90° inverted flare and 4L80E-specific aluminum fittings included.
• Confirm your transmission’s port thread and size before ordering.

How do these braided lines improve reliability compared with stock hoses?

Stainless steel braided hoses resist abrasion, swelling, and premature failure that can occur with rubber lines, especially under higher pressure and heat. The braided outer layer protects the inner hose and fittings, reducing the risk of leaks and extending service life.

• Stainless braid shields inner hose from road debris and chafing.
• AN-6 fittings provide secure, reusable connections with high pullout strength.
• Billet adaptors reduce thread seal complications versus mismatched fittings.
• Each hose is factory-tested for leak and pressure integrity before shipment.

What’s included in the kit and what tools are typically needed to install it?

The package contains two 70" stainless steel braided hoses, a selection of AN-6-to-NPT and AN-6-to-NPT billet adaptors, 90° inverted flare adaptors, and two aluminum 4L80E adapter fittings. Basic hand tools plus wrenches sized for AN fittings and thread-seal tape are usually all that’s needed for a home installation.

• 2x 70" stainless steel braided hoses with 3/8" I.D.
• 4x AN-6 flared to 1/4" NPT billet adaptors and 2x AN-6 to 3/8" NPT adaptors.
• 4x 90° AN-6 inverted flare to AN-6 flare adaptors and 2x aluminum 4L80E adaptors.
• Recommended tools: wrench set, thread sealant/tape, and clamps or brackets as required.

Who is this for? This kit is made for vehicle owners, mechanics, and restorers who need durable transmission cooler plumbing for performance or longevity — especially those converting older transmissions or replacing degraded rubber lines. Choose this GXARTS set if you want corrosion-resistant braided hoses, multiple fitting options for cross-compatibility, and a pre-tested assembly that reduces the time spent hunting individual adaptors. If you’re unsure about fitment, measure your transmission cooler port threads and compare them with the included adaptor types or contact GXARTS for assistance before purchasing.

FAQ

Q: Are these hoses compatible with my 1998 Chevy 700R4?

A: Yes if your 700R4 has standard cooler ports used on 1996+ GM models; check port threads and use included adaptors for proper fit.

Q: Do these braided lines need special maintenance?

A: No special maintenance; inspect fittings and routing periodically and check for abrasion or loose fittings after initial installation.