Kloc Fabrication
GMT400/5.7L 350 Oil Cooler AN Line Kit
GMT400/5.7L 350 Oil Cooler AN Line Kit
Kit parts are in stock but are currently being built to order. Current lead time for shipment is about 1 week.
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This kit eliminates the problematic factory oil cooler lines/fitting connections and replaces them with braided CPE lines and AN fittings.
This kit fits all GMT400 oil filter housings, and all GMT400 radiators equipped with M20x1.5 fitting connection threads.
Shipping & Returns
Shipping & Returns
Free Shipping in the Continental U.S.
In most cases, we try to have all orders (in-stock items only, NOT built-to-order items) placed before 3:00 p.m. EST shipped out same day or next business day. Please allow up to 2 business days for shipment of all in-stock orders.

Specifications
- (2) 3/8 NPT - 6AN Oil Cooler Adapter Fittings
- (2) M20x1.5 - 6AN Radiator Fittings
- (2) Pre-Fabricated 6AN CPE Lines - ready to install
- (3) Hose Separator Clamps (installed)
- Instruction Sheet
Kit includes (2) P-Clamps with 1/4x20 stainless hardware - this will bolt in place of the OEM oil cooler line mounting bracket on the engine mount frame bracket.
Note: The M20x1.5 radiator fittings have been shortened on a lathe to fit the GMT400 Radiator ports. No thread sealant should be used but we do recommend using red or blue Loctite during installation.