MSV Racing “OptiFlo” High Flow ’85-’01 CR500 H₂O Cover – A Premium Cooling Upgrade!
At MSV Racing, engineering meets performance, and when OEM just isn’t good enough, our “OptiFlo” High Flow H₂O Cover delivers maximum cooling efficiency for your 1985-2001 Honda CR500. This precision-designed premium water pump cover provides superior coolant flow, reduced backpressure, and smoother fluid dynamics, ensuring your impeller works efficiently helps your engine stay cool under extreme conditions.
Why Choose the MSV Racing OptiFlo H₂O Cover?
🔥 Fully Radiused Interior for Maximum Flow
- Unlike OEM and billet replicas with sharp 90° turns, our OptiFlo cover features a fully radiused interior, improving coolant flow efficiency and reducing turbulence and backpressure.
- Better flow = better cooling, allowing for lower operating temperatures and improved overall performance.
🚀 +1 GPM Increased Coolant Flow
- Our design adds an average of +1.3 GPM more coolant flow when paired with OEM or MSV Racing Impellers, ensuring faster heat dissipation and preventing overheating issues.
⚙️ Built for Performance & Durability
- Available in Shiny Billet, Military Spec (MIL-A-8625) Black Anodized, and Military Spec (MIL-A-8625) Red Anodized finishes for enhanced corrosion resistance and a premium look.
- O-ringed design eliminates the need for gaskets and separator plates, reducing the risk of leaks and simplifying installation.
✅ Complete Installation Kit for a Hassle-Free Upgrade
- Comes with HIGH TEMP FDM O-ring and 2 new dowel pins for a perfect seal and long-lasting durability.
🔄 Direct OEM Replacement for:
- 19221-KA5-690 (Cover, Water Pump)
- 19229-MAC-680 (Gasket, Water Pump Cover)
- 19222-KA5-690 (Separator, Water Pump)
- 94301-08100 (Pin, Dowel 8×10)
- 90701-679-000 (Pin A, Dowel 8×10)
Upgrade Today & Keep Your CR500 Running Cool!
Whether you’re racing, trail riding, or dune blasting, overheating is never an option. The MSV Racing OptiFlo H₂O Cover is designed for riders who demand peak cooling efficiency—ensuring your engine stays cool and runs strong every ride. 🔧 MSV Racing—Where Performance Meets Innovation!
Pete December (verified owner) –
Photos to come, bike rebuild in progress
Greg E. (verified owner) –
Your CNC water pump cover is far the best I’ve seen. I ordered CNC billet cases from Built500.com and there’s is not as good as yours.
Dylan S. (verified owner) –
Very good finish
Lee Wadsworth (verified owner) –
Quality made part great fit ,better than oem highly recommended 👍
Gary Janssen (verified owner) –
My career is aerospace so I appreciate excellent machine work.
Robert Paige (verified owner) –
Easy to install
John (verified owner) –
Quality part. Well made, fits perfect, looks killer.