Zarklenu 3 Row Aluminum Radiator for 1973-1987 Chevy C10 C20 C30 K10 K20 K30 GMC Truck Blazer Suburban AT MT 1973 1974 1975 1976 1977 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 — Open-Box, 14% Off

[Vehicle Specific Fitment]: Engineered as a direct bolt-on cooling upgrade for 1973-1987 Chevy/GMC C/K series Square Body trucks, Blazers, Jimmys, Suburbans, and select 1988-1993 R/V series applications. [High Capacity 3 Row Core]: Features a 3 row racing spec tube core design (19" H x 28-1/4" W) to drastically expand fluid capacity and eliminate stubborn engine bay heat saturation. [Premium Build & No Epoxy]: Fabricated entirely from high-tensile aircraft aluminum with 100% precision TIG-welded end tanks and zero epoxy, directly replacing weak, failure-prone factory setups. [Dual Transmission Utility]: Outfitted with an integrated internal transmission fluid cooler loop (G1/4 fittings), providing seamless plug-and-play versatility for both Automatic (AT) and Manual (MT) trucks. [Interchange & OEM Alignment]: Built to match OEM reference numbers 716, CC716, CU716, and 1599, featuring a 1-1/2" driver-side upper inlet and a 1-1/2" passenger-side lower outlet layout with a matching radiator cap.

HEAVY-DUTY 3 ROW PERFORMANCE COOLING OVERHAUL FOR 1973-1987 CHEVY & GMC C/K SQUARE BODY TRUCKS

Bring maximum thermal command and modern dependability to your classic American workhorse with the Zarklenu High-Performance 3 row Aluminum Radiator. Purpose-built for the iconic 1973-1987 Chevy and GMC C/K series trucks (including C10, C20, C30, K10, K20, and K30), Blazer, Jimmy, and Suburban platforms, this upgrade permanently solves the threat of severe overheating. Hauling heavy payloads, tackling rugged off-road paths, or idling at classic car meets puts incredible stress on vintage engine loops. Clogged original copper-brass radiators scale up internally and deteriorate at the seams over decades of service. Zarklenu completely replaces this weak link with a robust full-aluminum multi-row core engineered to conquer heat soak.

AIRCRAFT-GRADE STRUCTURAL QUALITY WITH UNIVERSAL ENGINE VERSATILITY

Ditch fragile original configurations and brittle structural elements for absolute long-term road safety. Zarklenu re-engineers this conversion assembly using 100% premium aircraft aluminum with advanced brazed core technology and robust full-seam TIG welds, completely avoiding weak epoxy compounds. By replacing restrictive factory single-row cores with a free-flowing, high-density 3 row racing matrix, this unit delivers excellent pressure retention and maximized coolant circulation. This highly adaptable radiator handles everything from Inline-6 setups up to high-displacement 5.7L (350ci) and 7.4L (454ci) Big Block V8s, equipped with built-in transmission cooling lines for seamless automatic or manual installation.

KEY TECHNICAL SPECIFICATIONS:

• Radiator Core Layout: 3 row High-Performance Racing Spec Design

• Welding Standards: 100% TIG-Welded End Tanks (No Structural Epoxy Used)

• Material Construction: Full Aircraft-Grade Aluminum Core & End Tanks

• Core Dimensions: 19" Height x 28-1/4" Width

• Overall Dimensions: 20-1/4" Height x 33-1/4" Width

• Inlet / Outlet Connection: 1-1/2" Driver Side Upper Inlet / 1-1/2" Passenger Side Lower Outlet Layout

• Transmission Oil Cooler: Internal Transmission Cooler Loop Integrated (￠32×215×G1/4 Fittings)

• Interchange Cross Reference: Fits 716, CC716, CU716, DPI716, CU1599, CR1599, and 1599 Placements

• Engine Range Compatibility: Universally Adapts to 4.1L, 4.3L, 4.8L, 5.0L, 5.7L, 6.2L Diesel, 6.6L, and 7.4L Powerplants

PACKAGE INCLUDES: 1x 3 row Performance Radiator, 1x High-Pressure Safety Radiator Cap.