PACKAGE INCLUDE--1 X 3-Row AA5052 Aluminum Radiator; 1 x CNC Machined Radiator Cap COMPATIBILITY--Replacement for 1966-1974 Jeep DJ5 3.8L 4.2L; Pls confirm the model carefully before buying, to avoid buying the wrong. KEY SPECIFICATIONS--High Performance Racing Spec. 3-Row of tubes Core Racing Design; Material: Aluminum; Core Dimensions: 15.75" WIDE x 16.46"HEIGHT; Overall Dimensions: 19.88" WIDEx 20.87"HEIGHT x 4.88" T; Upper Outlet Diameter: 1-1/2"; Lower Inlet Diameter: 1-1/2" STRICT QUALITY CHECKS & SECURE PACKAGING--Each radiator is pressure-tested for leaks before shipment and arrives in protective cushioning and reinforced cartons to prevent transit damage. For best results, professional installation is advised LONG-LASTING RELIABILITY--The all-aluminum construction, with its inherent strength and heat resistance, prevents deformation and leaks, even under extreme conditions. High-precision manufacturing ensures a durable, leak-free design PACKAGE INCLUDE-- 1 X 3-Row AA5052 Aluminum Radiator 1 x CNC Machined Radiator Cap COMPATIBILITY-- Replacement for 1966-1974 Jeep DJ5 3.8L 4.2L Pls confirm the model carefully before buying, to avoid buying the wrong. KEY SPECIFICATIONS-- High Performance Racing Spec. 3-Row of tubes Core Racing Design Material: Aluminum Core Dimensions: 15.75" WIDE x 16.46"HEIGHT Overall Dimensions: 19.88" WIDEx 20.87"HEIGHT x 4.88" T Upper Outlet Diameter: 1-1/2" Lower Inlet Diameter: 1-1/2" STRICT QUALITY CHECKS & SECURE PACKAGING-- Each radiator is pressure-tested for leaks before shipment and arrives in protective cushioning and reinforced cartons to prevent transit damage. For best results, professional installation is advised LONG-LASTING RELIABILITY-- The all-aluminum construction, with its inherent strength and heat resistance, prevents deformation and leaks, even under extreme conditions. High-precision manufacturing ensures a durable, leak-free design The AA5052 Aluminum Radiator is designed to provide superior cooling performance and extend engine life. It features lightweight aluminum and tube-and-fin construction to maximize cooling area for efficient heat dissipation. It dissipates heat 30-45% more efficiently than standard models, has a larger coolant capacity and is more adaptable to temperature fluctuations in professional racing conditions. Manufactured from AA5052 aircraft-grade aluminum, which is stronger and more corrosion-resistant than other alloys. Brazing technology for optimum performance and reliability. Made with 2mm thick aluminum tank and fittings for durability. Features a high-density core with 3/8" heat sink row spacing, 25% more than typical aluminum heat sinks. 14-16 fins per inch, approximately 1,500 fins more than other aluminum radiators for superior cooling performance.