Description
HKS Oil Cooler Kit Black – 2023–Present Honda Civic Type R (FL5) | 15004-AH105
The HKS Oil Cooler Kit (Black) is designed specifically for the 2023–present Civic Type R (FL5) to control oil temperatures during sustained high-load driving (track days, +R mode, long pulls, and hot climates). HKS developed this kit around the FL5 platform with a dedicated ducting strategy that feeds fresh air directly to the cooler core and then evacuates it efficiently—helping maintain stable oil temps and consistent performance.
Key Features
- Application: 2023–Present Honda Civic Type R (FL5) | Engine: K20C
- HKS Part Number: 15004-AH105
- Core Style: S-Type
- Core Size / Rows: 200 x 122.5 x 48mm / 9-row
- Core Location: Inside right fender area
- Hose Size: #10 (stainless braided for durability)
- Thermostat: Opens at 70°C (±3), fully open at 80°C (±3)
- Safety Feature: Thermostat relief/bypass helps protect lines & fittings if flow is restricted
- Protection Included: Core protector to help guard against road debris
What’s Included
- Oil cooler core
- Resin-molded air ducts (ducting components included)
- Air intake duct
- Core protector
- Mounting brackets & hardware
- #10 oil lines & fittings
- Thermostat housing
- Oil filter
Why Upgrade?
- Helps reduce oil temperature spikes during repeated hard braking and acceleration
- Improves thermal stability for consistent power and protection under sustained load
- Purpose-built ducting approach to maximize airflow to the cooler core
Install Notes
- Modification required: bumper and splash shield trimming/modification is required to route/install ducts
- Estimated install time: ~6 hours (varies by experience & tools)
- Oil capacity note: plan for approximately +0.5L additional oil when installing the oil cooler
Optional Add-On
- Dry Carbon Air Duct (Optional): replaces the included duct — HKS 15999-AH001
Note: We recommend verifying fitment, planning for an oil change during installation, and performing an alignment/inspection if your front undertray or related components are removed during the install.
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