RSG Engineered RX-7 FC3S S5 Turbo Billet Thermostat Neck
RSG Engineered RX-7 FC3S S5 Turbo Billet Thermostat Neck
AVAILABILITY & LEAD TIME
In-stock items are normally dispatched promptly. Products not currently in stock may require additional supplier lead time before dispatch.
If you need an item urgently, please contact RSG before ordering to confirm current availability.
RSG FC3S S5 Billet Thermostat Neck
The RSG Engineered Billet Thermostat Neck is designed for the Mazda RX-7 FC3S Series 5 / Kouki cooling system.
The factory S5 uses a 3-bolt plastic thermostat cover, unlike the earlier S4 2-bolt arrangement. With decades of heat cycles and age, the original plastic component can become brittle, crack or deteriorate.
The RSG replacement is CNC machined from billet aluminium, eliminating the ageing plastic neck and providing a permanent upgrade for restored and performance FC3S builds.
KEY FEATURES
- RSG Engineered
- Mazda RX-7 FC3S Series 5
- Suitable for S5 Turbo / 13B Turbo II
- CNC-machined billet aluminium
- Replaces the original plastic thermostat neck
- 3-bolt S5 mounting pattern
- Ideal for restoration and performance builds
- Clean billet engine-bay appearance
- Small-batch manufactured by RSG
S5 / 3-BOLT APPLICATION — NOT S4
Worldwide Shipping Available.
PRODUCT SPECIFICATIONS
Manufacturer: RSG Engineered
Part Number: RSG-FC-S5-COOL-THNECK
Condition: New
Country of Origin: Greece
RETURNS & REFUNDS
Returns are accepted in accordance with our Returns & Refund Policy.
Items must meet the applicable return conditions.
Please contact Rotary Secret Garage before returning any item.
SHIPPING & DELIVERY
Worldwide shipping with FedEx.
Rotary Secret Garage ships international orders using FedEx tracked courier services, providing reliable door-to-door delivery and shipment tracking.
Orders outside the European Union are shipped by FedEx Express.
Available shipping services and costs are calculated at checkout.
DUTIES & IMPORT TAXES
Orders shipped outside the European Union may be subject to import duties, taxes and customs fees imposed by the destination country.
These charges are the responsibility of the recipient and are not included in the product price or shipping cost, unless explicitly stated otherwise.
PARTS & FITMENT
Compatible Vehicle / Engine:
Please verify the vehicle application and part number before ordering.
If you are unsure whether a part is suitable for your vehicle, engine or specific setup, contact Rotary Secret Garage before placing your order.
RSG can assist with product selection and compatibility for parts supplied through our store.
PRODUCT SUPPORT
Technical product support is available from Rotary Secret Garage for parts supplied through our store.
If you need assistance with product selection, installation or application, contact RSG and include your order number and relevant vehicle, engine or setup details.