Replace every primary coolant line at once with a six-piece silicone kit, handmade in the UK to a stated 170°C rating.
$590
Mazda RX8 silicone hoses from SAMCO replace every primary coolant line across Series 1 and Series 2 cars in a single job. The Renesis rotary runs a compact, heat-dense engine bay. Original rubber hoses soften, crack and swell with age.
This six-piece kit cuts that risk entirely. It brings a clean, known-condition baseline to the cooling circuit. Each hose is handmade in the UK from multi-layered silicone and fibre. The stated temperature rating is 170°C, and dimensional tolerance is held to ±0.5mm.
For rotary enthusiasts refreshing the cooling system, switching to Mazda RX8 silicone hoses means the primary circuit is consistent from day one. There is no guessing which hose was last replaced or what condition it is in.
The laminated silicone structure suppresses hose expansion. That contributes to better airtightness and helps stabilise coolant temperatures across the system. Eight colour options add a deliberate engine-bay detail that aged rubber simply cannot offer.
Round out the cooling refresh by pairing these hoses with the GENUINE MAZDA OEM Radiator Hose Replacement Set to address any remaining OEM rubber in the system. On Series 1 cars, the R-MAGIC Super High Flow Water Pump improves coolant circulation through the lines these Mazda RX8 silicone hoses feed, making it a natural companion upgrade. For the full SAMCO hose range and manufacturer background, visit SAMCO’s official website.
Related RX8 Upgrades
Yes, the SAMCO silicone coolant hose set is designed to fit both Series 1 (2003-2008) and Series 2 (2009-2012) RX8 models. The kit is held to a stated ±0.5mm dimensional tolerance, so each hose seats correctly against OEM fittings across both series.
The kit is a six-piece set covering all primary coolant lines in the Renesis engine bay. Replacing the entire main circuit in one job means every hose is matched, same-age silicone from day one, with no guessing about which lines have or have not been previously replaced.
SAMCO rates these hoses to 170°C, which sits well above the normal thermal demands of the Renesis rotary. That margin supports long-term hose integrity through the sustained heat and pressure cycles common in the compact, heat-dense RX8 engine bay.
The kit is available in eight colours: Black, Blue, British Racing Green, Green, Orange, Purple, Red and Yellow. You can match an existing build theme or keep the engine bay understated with Black - something aged rubber simply cannot offer.
Original rubber hoses soften, crack and swell with age, particularly in the heat-dense Renesis engine bay. The SAMCO silicone and fibre multi-layered construction resists those degradation modes, and the flat inner bore eliminates the collapse risk that aged rubber can present under vacuum. A new set also gives you a known-condition baseline across the entire primary cooling circuit.
SAMCO silicone hoses are handmade in the UK. Each hose in the RX8 kit is individually constructed from multi-layered silicone and fibre to a stated ±0.5mm dimensional tolerance.
The six-piece kit is designed to replace OEM hose runs like-for-like, and the ±0.5mm dimensional tolerance means each hose seats against standard RX8 fittings without modification. Many owners complete the job at home during a cooling system service, though anyone unfamiliar with draining and refilling a rotary cooling system may prefer to have a workshop carry it out.
While you have the cooling circuit open, it is worth addressing any remaining OEM rubber with a Genuine Mazda OEM Radiator Hose Replacement Set. On Series 1 cars, the R-MAGIC Super High Flow Water Pump is a natural companion, improving coolant circulation through the same circuit these hoses feed.
