Mishimoto MMRAD-K2-14 Aluminum Radiator 2014-2018 Silverado Sierra 1500 V8 K2

Vehicle Fitment

• 2014-2018 Chevrolet Silverado 1500 (5.3L V8 and 6.2L V8, K2 Chassis)
• 2014-2018 GMC Sierra 1500 (5.3L V8 and 6.2L V8, K2 Chassis)
• 2015-2018 Cadillac Escalade (6.2L V8, K2 Chassis)
• 2015-2020 Chevrolet Suburban (5.3L V8, K2 Chassis)
• 2016-2019 Chevrolet Suburban (6.0L V8, K2 Chassis)
• 2019-2020 Chevrolet Suburban (6.2L V8, K2 Chassis)
• 2015-2020 Chevrolet Tahoe (5.3L V8, K2 Chassis)
• 2018-2020 Chevrolet Tahoe (6.2L V8, K2 Chassis)
• 2015-2020 GMC Yukon / Yukon Denali (5.3L V8 and 6.2L V8, K2 Chassis)

Fitment Notes

• Fits V8 models only (5.3L EcoTec3 L83, 6.0L L96, and 6.2L EcoTec3 L86). Does not fit 4.3L V6 variants of the Silverado, Sierra, Tahoe, Suburban, or Yukon on the K2 platform.
• Built-in oil cooler and transmission cooler ports with pre-installed stock-style adapters are included - the radiator accepts factory oil and transmission cooler line connections without sourcing additional fittings. No modification to the truck is required.
• Drain plug thread size: M12 x 1.5.
• Patent: D912,702. Installation difficulty rated Medium. Official Mishimoto PDF installation guide is available.

Features

• Direct OEM-fit performance aluminum radiator engineered specifically for the 2014-2018 K2 Chevrolet Silverado/GMC Sierra 1500 and the K2 SUV platform (Tahoe, Suburban, Yukon, Escalade) - delivers a 45% increase in core volume, 78% increase in tube surface area, and 47% increase in fin surface area over the stock radiator, maximizing use of every square inch of the open K2 grille aperture.
• Three-row aluminum core with a 34.25" x 17.57" x 1.8" thick profile provides substantially increased coolant volume and heat transfer surface area compared to the OEM plastic-tank radiator, enabling efficient temperature management under sustained towing, hauling, off-road use, and hot ambient conditions.
• Extruded tubes with internal struts (strutted tubes) in the top 8 and bottom 8 rows of the core - strutted extrusions can withstand significantly greater internal pressure than standard drawn tubes and resist deflection and flexing over rough or uneven terrain, providing structural integrity under the thermal and mechanical stress of K2 truck operation.
• Full aluminum construction with TIG-welded end tanks - aluminum provides superior heat dissipation, corrosion resistance, and weight savings over the OEM plastic-tank/aluminum-core construction, and eliminates the end-tank cracking failure mode associated with aged OEM plastic tank radiators.
• Pre-installed oil cooler adapters (2x) and transmission cooler adapters (2x) accept the stock K2 oil cooler and transmission cooler line connections directly - no additional fittings, adapters, or modification required, making for a straightforward drop-in installation.
• Magnetic drain plug (M12 x 1.5) captures ferrous metallic particles from the cooling circuit before they can circulate through the core and water pump, extending cooling system service life.
• Patent D912,702. Backed by the Mishimoto Lifetime Warranty.

Specifications

• Overall Dimensions: 43.1 in (L) x 20.0 in (H) x 5.7 in (W)
• Core Dimensions: 34.25 in (L) x 17.57 in (H) x 1.8 in thick
• Rows: 3
• Coolant Capacity: 1.15 gal
• Drain Plug Thread: M12 x 1.5
• Core Volume Increase vs. Stock: 45%
• Tube Surface Area Increase vs. Stock: 78%
• Fin Surface Area Increase vs. Stock: 47%
• Strutted Tubes: Yes - top 8 rows and bottom 8 rows
• Oil Cooler: Built-in, pre-installed stock-style adapters
• Transmission Cooler: Built-in, pre-installed stock-style adapters
• Chassis: K2
• Patent: D912,702

Included Components

• 1x Mishimoto performance aluminum radiator
• 2x Pre-installed oil cooler adapters
• 2x Pre-installed transmission cooler adapters
• 1x Magnetic drain plug (M12 x 1.5)
• Mishimoto Lifetime Warranty

Product Description

The Mishimoto MMRAD-K2-14 is a direct OEM-fit performance aluminum radiator engineered for the K2 platform - encompassing the 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 with V8 engines, and extending to the K2-based SUV family including the Tahoe, Suburban, Yukon, Yukon Denali, and Cadillac Escalade with V8 powerplants. The K2 truck and SUV platform is defined by the combination of significant towing and payload capability with an interior comfort level that sets it apart from prior generations - but its factory radiator, constructed with plastic end tanks, is sized for stock engine output in normal driving conditions. Owners who tow frequently, drive in sustained hot weather, push power output higher, or operate in demanding off-road environments regularly find the OEM cooling system working at or beyond its design margins.

Mishimoto's direct-fit replacement delivers a 45% increase in core volume, 78% more tube surface area, and 47% more fin surface area compared to the stock radiator - figures achieved by engineering the radiator to fill the maximum available space within the K2 radiator support opening. The three-row core is built with extruded tubes featuring internal structural struts in the top and bottom eight rows, a construction method that allows these tubes to withstand substantially greater internal pressure than standard drawn tubes and resist the bending and flexing loads imposed by rough terrain and sustained hard driving. The full aluminum TIG-welded construction eliminates the plastic-tank end-tank cracking failure mode that is a known aging characteristic of OEM radiators on these trucks.

The radiator includes pre-installed stock-style adapters for both the oil cooler and transmission cooler connections, allowing the factory oil and ATF lines to connect directly without sourcing additional fittings or making any modification to the truck's cooling circuit. A magnetic drain plug is included to capture metallic debris from the coolant stream. Installation is rated Medium difficulty; a Mishimoto PDF installation guide is available. The radiator fits V8 models only - 4.3L V6 variants of the K2 platform use a different radiator and are not compatible. Patent D912,702. Covered by the Mishimoto Lifetime Warranty.