GReddy 13-Row Oil Cooler Kit – Nissan Skyline GT-R R33 (BCNR33) | RB26DETT Twin-Turbo | Direct-Fit Application-Specific Kit

The GReddy 13-Row Oil Cooler Kit for the Nissan Skyline GT-R R33 (BCNR33) is a complete, application-specific oil cooler kit engineered to reduce oil temperatures in the RB26DETT twin-turbo inline-six under sustained high-performance and track use. The Nissan Skyline GT-R R33 (BCNR33) is one of the most celebrated and iconic Japanese performance cars ever produced — powered by the legendary RB26DETT 2.6L twin-turbo inline-six, a platform with extraordinary power potential and a global enthusiast community that has pushed the RB26 to extraordinary power levels. Under sustained track use and at elevated power outputs, the RB26DETT generates significant heat — and oil temperature management is a critical reliability consideration for any performance or track-driven R33 GT-R. The GReddy 13-row oil cooler kit provides the additional oil cooling capacity required to maintain safe oil temperatures under the most demanding conditions. GReddy (Trust) is one of the most iconic and respected JDM performance brands in the world — a Japanese manufacturer with decades of motorsport and performance development experience for Nissan, Toyota, Honda, and other Japanese performance platforms.

Key Features:

• 13-row oil cooler core — GReddy's 13-row oil cooler core provides substantial additional oil cooling capacity — correct for the RB26DETT's heat output under sustained track use and at elevated power levels
• Application-specific kit — engineered specifically for the Nissan Skyline GT-R R33 (BCNR33) — correct oil cooler sandwich plate, fittings, and lines for the RB26DETT's oil filter location and engine bay routing
• RB26DETT specific — correct for the BCNR33's RB26DETT twin-turbo inline-six — the correct oil cooler specification for the R33 GT-R's engine and cooling system layout
• Reduces oil temperatures — lower oil temperatures maintain correct oil viscosity under sustained high-load use — protecting the RB26DETT's engine bearings, turbocharger bearings, and other oil-lubricated components from the accelerated wear caused by overheated, thinned oil
• Turbocharger protection — the RB26DETT's twin turbochargers rely on engine oil for bearing lubrication and cooling — lower oil temperatures protect the turbo bearings from heat soak and extend turbocharger service life
• Extends oil service life — lower operating temperatures significantly slow oil oxidation and degradation — maintaining oil quality between service intervals
• Complete kit — a complete oil cooler kit including the cooler core, sandwich plate adapter, lines, and fittings — everything required for installation in a single kit
• GReddy quality — manufactured by GReddy (Trust), one of the most iconic and respected JDM performance brands in the world

Why the R33 GT-R Needs an Oil Cooler:

The Nissan Skyline GT-R R33 (BCNR33) is powered by the RB26DETT — a 2.6L twin-turbo inline-six that produces 276HP in factory specification (with significantly more available through modification). The RB26DETT's twin turbochargers, high compression ratio, and high power output generate substantial heat under sustained track use. The factory oil cooling system is designed for street use and moderate performance driving — under sustained track conditions, particularly at elevated power outputs, oil temperatures can rise to levels that thin the oil beyond its effective viscosity range. Thinned oil provides inadequate lubrication at the RB26DETT's main and rod bearings, camshaft bearings, and critically, the twin turbocharger bearings — accelerating wear and risking catastrophic failure. An oil cooler is not optional for a track-driven or high-power R33 GT-R — it is a fundamental reliability component.

13-Row Core — Why This Specification for the R33 GT-R:

GReddy's 13-row core is a larger specification than the 10-row kit used on naturally aspirated applications like the S2000 — correct for the RB26DETT's higher heat output from its twin-turbo configuration and higher power potential. The 13-row core provides the cooling capacity required to manage oil temperatures under sustained track use and at elevated power levels, while remaining practical for a street-driven R33 GT-R. For R33 GT-R owners who primarily track their car or are running significantly elevated power outputs, the 13-row specification is the correct choice.

Specifications:

• Brand: GReddy (Trust)
• Part Number: GRE12024421
• Core Rows: 13
• Type: Complete oil cooler kit
• Application: Nissan Skyline GT-R R33 — BCNR33 — RB26DETT
• Weight: 20 lbs (shipping weight — complete kit)

Fitment Information:

• Nissan Skyline GT-R R33 — BCNR33 — RB26DETT twin-turbo inline-six
• Application-specific — correct sandwich plate, fittings, and line routing for the BCNR33's oil filter location and engine bay
• Note: Verify your specific R33 GT-R configuration before ordering — confirm that GRE12024421 is the correct oil cooler kit for your BCNR33. Professional installation strongly recommended. An oil thermostat is recommended for street-driven R33 GT-Rs to prevent oil from running too cold in winter conditions.

What's Included:

• GReddy 13-row oil cooler core
• Oil cooler sandwich plate adapter (oil filter relocation)
• Oil cooler lines and fittings
• All required hardware
• Refer to GReddy's product documentation for complete kit contents and installation instructions

Installation Notes:

• Professional installation strongly recommended — oil cooler installation on the R33 GT-R requires correct sandwich plate torque, correct line routing through the engine bay, and a thorough leak check before the first start
• Perform a thorough oil leak check after installation before the first start — pressurize the oil system by cranking without starting and inspect all connections for leaks before firing the engine
• Route oil lines away from exhaust components, turbocharger heat shields, moving suspension parts, and sharp edges — oil line contact with hot exhaust or turbocharger components will cause line failure
• An oil thermostat is recommended for street-driven R33 GT-Rs — a thermostat prevents oil from flowing through the cooler until it reaches operating temperature, preventing overcooling in cold weather and ensuring correct oil viscosity at startup
• Use fresh, high-quality full-synthetic engine oil after installation — the additional oil volume in the cooler and lines will dilute the existing oil
• Monitor oil temperature after installation — verify that oil temperatures remain within the correct operating range under both street and track conditions
• Allow the turbochargers to cool down after track use before shutting off the engine — a turbo timer or idle cool-down period prevents oil coking in the turbo bearings from heat soak after shutdown

Why GReddy?

GReddy (Trust) is one of the most iconic and respected JDM performance brands in the world — a Japanese manufacturer with decades of motorsport and performance development experience for Nissan, Toyota, Honda, and other Japanese performance platforms. GReddy's oil cooler kits are application-specific — engineered for the correct fit, correct line routing, and correct cooling capacity for each specific platform. For R33 GT-R owners who want a quality, application-specific oil cooler kit from one of the most trusted names in JDM performance, GRE12024421 is the correct choice.

Perfect For:

• Nissan Skyline GT-R R33 (BCNR33) owners who track their car or are running elevated power outputs and need a 13-row oil cooler to maintain safe oil temperatures under sustained high-load use — a critical reliability upgrade for any performance or track-driven R33 GT-R
• High-power RB26DETT builds where elevated boost and power output significantly increase heat generation and oil temperature management is a priority for engine and turbocharger longevity
• R33 GT-R owners who want a complete, application-specific oil cooler kit from GReddy — correct fitment, correct 13-row cooling capacity for the RB26DETT's heat output, and GReddy's proven JDM performance engineering

Note: Oil thermostat recommended for street-driven R33 GT-Rs to prevent overcooling. Thorough leak check required before first start. Route lines away from exhaust, turbochargers, and moving components. Use fresh full-synthetic oil after installation. Allow turbochargers to cool down after track use before shutdown. Professional installation strongly recommended. Verify BCNR33 configuration before ordering.