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Product Details
| Part Number: | FN2313 |
| Brand: | Koyo Radiator |
Complete your cooling system upgrade with the Koyo FN2313 Aluminum Radiator Filler Neck. Designed specifically for 2006–2011 Honda Civic applications, this CNC-machined aluminum filler neck provides a durable solution when using cooling system configurations that require a remote radiator fill point. It is an ideal companion for Koyorad aluminum radiators and engine swap applications where the factory filler location is no longer practical.
Constructed from high-quality aluminum for superior strength and corrosion resistance, the FN2313 is engineered to provide a secure seal and reliable coolant filling and bleeding. This filler neck requires a Koyorad SK-C13 (Type A) radiator cap or an equivalent deep-plunger cap, as the factory Honda radiator cap is not compatible.
Features
- Genuine Koyo Aluminum Radiator Filler Neck
- Part Number: FN2313
- Precision-machined aluminum construction for maximum durability
- Provides a convenient remote coolant fill point for modified cooling systems
- Corrosion-resistant finish for long service life
- Ideal for custom radiator hose routing and engine swap applications
- Direct-fit design for select 2006–2011 Honda Civic models
- Commonly used with Koyorad aluminum racing radiators
- Accepts Koyorad SK-C13 (Type A) or equivalent deep-plunger radiator caps
- OEM Honda radiator cap is not compatible
- Helps simplify coolant filling and air bleeding during installation and maintenance
- Engineered to Koyorad's high standards for fit, quality, and performance
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 2006 | Honda | Civic | Si |
| 2007 | Honda | Civic | Si |
| 2008 | Honda | Civic | MUGEN Si |
| 2008 | Honda | Civic | Si |
| 2009 | Honda | Civic | Si |
| 2010 | Honda | Civic | Si |
| 2011 | Honda | Civic | Si |
1 Reviews ★★★★★
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David | April 12th, 2022
If you're upgrading the plastic radiator might as well upgrade the neck and cap. Very happy with my purchase nice fit and finish.
