Product Highlights
- Effortless drop-in replacement for stock radiator cap.
- Holds higher pressure than standard OEM caps to maximize your cooling system's capabilities (maximum pressure rating: 1.3 bar).
- Raises the temperature limit of your coolant, significantly reducing the risk of overheating under intense thermal loads.
- Delivers unmatched cooling efficiency and peace of mind for daily drivers, high-revving competition cars, off-road rigs, and custom builds.
- Engineered to seamlessly withstand the harshest high-performance environments while giving your engine bay a clean, simple look.
- Features upgraded silicone gaskets from less durable rubber gaskets for a secure and long-lasting seal.

Vehicle Applications
REMARK: Check your vehicle's radiator cap to ensure that it matches the type listed. If your radiator has been replaced with an aftermarket unit, it may use a different type of radiator cap.

Part number 2068-38N = Type B, Flat Valve
Part number 2068-40S = Type A, Spring-Loaded

Mazda 2 1.5L L4 (2011-2018)
Mazda 3 2.0L L4 (2014-2022)
Mazda 3 2.5L L4 (2014-2025)
Mazda 3 2.5L L4 Turbo (2021-2025)
Mazda 3 Sport 2.0L L4 (2017)
Mazda 323 1.6L L4 (1986-1994)
Mazda 323 1.6L L4 Turbo (1988-1989)
Mazda 5 2.3L L4 (2006-2010)
Mazda 5 2.5L L4 (2012-2015)
Mazda 6 2.5L L4 (2011-2021)
Mazda 6 2.5L L4 Turbo (2018-2021)
Mazda 626 2.0L L4 (1985-1987, 1993-2002)
Mazda 626 2.0L L4 DIESEL (1985)
Mazda 626 2.0L L4 Turbo (1986-1987)
Mazda 626 2.2L L4 (1988-1992)
Mazda 626 2.2L L4 Turbo (1988-1991)
Mazda 626 2.5L V6 (1993-2002)
Mazda 929 3.0L V6 (1988-1995)
Mazda B2000 2.0L L4 (1987)
Mazda B2200 2.2L L4 (1987-1993)
Mazda B2300 2.3L L4 (1996-1997)
Mazda B2500 2.5L L4 (1998-2001)
Mazda B2600 2.6L L4 (1987-1993)
Mazda B3000 3.0L V6 (1995-2008)
Mazda B3000 3.0L V6 FLEX (1999-2003)
Mazda B4000 4.0L V6 (1995-2010)
Mazda CX-3 2.0L L4 (2016-2021)
Mazda CX-30 2.5L L4 (2020-2025)
Mazda CX-30 2.5L L4 Turbo (2021-2025)
Mazda CX-5 2.0L L4 (2013-2018)
Mazda CX-5 2.5L L4 (2014-2025)
Mazda CX-5 2.5L L4 Turbo (2019-2025)
Mazda CX-50 2.5L L4 (2023-2025)
Mazda CX-50 2.5L L4 Hybrid (2025)
Mazda CX-50 2.5L L4 Turbo (2023-2025)
Mazda CX-7 2.3L L4 Turbo (2012)
Mazda CX-7 2.5L L4 (2011-2012)
Mazda CX-9 2.5L L4 Turbo (2016-2023)
Mazda CX-9 3.5L V6 (2007)
Mazda CX-9 3.7L V6 (2008-2015)
Mazda Miata 1.6L L4 (1990-1993)
Mazda Miata 1.8L L4 (1994-2005)
Mazda Miata 1.8L L4 Turbo (2004-2005)
Mazda Millenia 2.3L V6 Supercharged (1995-2002)
Mazda Millenia 2.5L V6 (1995-2002)
Mazda MPV 2.5L V6 (2000-2001)
Mazda MPV 2.6L L4 (1989-1994)
Mazda MPV 3.0L V6 (1989-1998, 2002-2006)
Mazda MX-3 1.6L L4 (1992-1995)
Mazda MX-3 1.8L V6 (1992-1995)
Mazda MX-30 EV EV (2022-2023)
Mazda MX-5 2.0L L4 (2006-2013)
Mazda MX-5 Miata 2.0L L4 (2006-2025)
Mazda MX-6 2.0L L4 (1993-1997)
Mazda MX-6 2.2L L4 (1988-1992)
Mazda MX-6 2.2L L4 Turbo (1988-1992)
Mazda MX-6 2.5L V6 (1993-1997)
Mazda Protege 1.5L L4 (1995-1998)
Mazda Protege 1.6L L4 (1999-2003)
Mazda Protege 1.8L L4 (1990-2000)
Mazda Protege 2.0L L4 (2001-2003)
Mazda Protege 2.0L L4 Turbo (2003)
Mazda Protege5 2.0L L4 (2002-2003)
Mazda RX-7 1.3L R2 (1986-1991)
Mazda RX-7 1.3L R2 Turbo (1986-1995)
Mazda RX-8 1.3L R2 (2004-2011)

Features and Benefits
The HPS Performance Stainless Steel Radiator Cap is designed as a direct replacement for your Mazda stock radiator cap, featuring a robust 1.3 bar pressure rating and silicone sealing gaskets. By holding a higher pressure than standard OEM caps, it effectively raises your coolant's boiling point to reduce the risk of overheating under intense thermal loads. This increased boiling point delivers unmatched peace of mind and cooling efficiency across a wide variety of applications, whether you are relying on an everyday vehicle in heavy stop-and-go traffic, pushing the limits in a high-revving competition car, navigating rugged terrain in an off-road rig, or putting the finishing touches on a custom build. Combining an effortless, drop-in installation with a clean, simple look, this premium stainless steel cap is engineered to seamlessly withstand the harshest high-performance environments while keeping your engine running cool.

Product Information
- Product Type: High-Pressure Stainless Steel Radiator Cap
- Material: Stainless Steel
- Color: Silver
- Warranty: 2 Years
- Weight: 6 oz
- Shipping Box Dimension: 4 inch x 4 inch x 4 inch