SKU: MMRT-RS-16EWBL | UPC: 748354036947
Mishimoto 2013+ Ford Focus ST/2016+ Focus RS Aluminum Expansion Tank - Wrinkle Blue
Replace the fragile stock plastic coolant reservoir on your 2013-2018 Ford Focus ST or 2016-2018 Focus RS with this durable Mishimoto aluminum expansion tank in wrinkle blue. Internal baffles eliminate coolant starvation from overflow and minimize sloshing during hard cornering, braking, and acceleration for consistent cooling performance. Add engine bay style while gaining reliability that lasts through extreme temperature cycles.
Key Features
- Internal Baffles: Prevent coolant starvation at overflow ports and reduce sloshing under high-speed cornering, braking, or acceleration for reliable flow
- Sight Tube: Allows quick visual checks of hot and cold coolant levels to simplify maintenance and monitoring
- TIG-Welded Aluminum Construction: Replaces failure-prone plastic with corrosion-resistant material for long-term durability in harsh conditions
- Stock Cap Compatibility and Overflow Nipple: Reuses OEM cap and includes nipple for extra tank to maintain NHRA compliance
- Wrinkle Blue Finish and Direct Fit: Enhances engine bay aesthetics with three color options, installs in under 1 hour on 2013-2018 Focus ST and 2016-2018 Focus RS
Product Notes
- Direct replacement upgrades reliability and appearance over stock tank
- Compatible with OEM hardware for seamless integration
- Ships ready to install with lifetime warranty coverage
Installation Notes
- Professional installation recommended.
- Completes in under 1 hour using basic hand tools
- Bolts into factory location and reuses stock mounting hardware and cap
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2016 | Ford | Escape | S |
| 2013-2016 | Ford | Escape | SE |
| 2013 | Ford | Escape | SEL |
| 2013-2016 | Ford | Escape | Titanium |
| 2013-2018 | Ford | Focus | Electric |
| 2016-2018 | Ford | Focus | RS |
| 2013-2018 | Ford | Focus | S |
| 2013-2018 | Ford | Focus | SE |
| 2017-2018 | Ford | Focus | SEL |
| 2013-2018 | Ford | Focus | ST |
| 2013-2018 | Ford | Focus | Titanium |
| 2014-2021 | Ford | Transit Connect | Titanium |
| 2014-2021 | Ford | Transit Connect | XL |
| 2014-2021 | Ford | Transit Connect | XLT |
Why Choose Mishimoto?
- Direct-fit parts engineered specifically for Ford Focus models
- High-quality TIG-welded aluminum withstands daily heat cycles
- Lifetime warranty backs every component
Frequently Asked Questions
-
Q: Will this fit my 2016 Ford Focus RS?
A: Yes, designed for direct installation on 2016-2018 Focus RS and 2013-2018 Focus ST with no modifications -
Q: What material is the expansion tank made from?
A: Constructed from durable TIG-welded aluminum with wrinkle blue finish for strength and style -
Q: What warranty comes with this part?
A: Includes Mishimoto Lifetime Warranty covering defects in materials and workmanship
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed, 10 x 8 x 8 inches
- Weight: 2.1 lbs
Coolant Reservoirs
Coolant reservoirs, also called expansion tanks or overflow bottles, maintain a pressurized coolant supply that the radiator draws from as the cooling system cools down after engine-off. A cracked or leaking reservoir causes coolant loss and eventual overheating, while an upgraded billet or aluminum tank improves appearance and durability in performance engine bays.Popular UpgradesAluminum and billet coolant expansion tanks for LS and LT engine swaps and popular domestic performance vehicles are the most popular upgrades, providing a clean look and superior durability compared to factory plastic bottles that crack from heat cycling. Universal inline overflow tanks made from polished aluminum or anodized billet are popular on custom engine bays where the stock location has been eliminated. Direct-fit OEM-style replacement tanks restore coolant system function on high-mileage vehicles where the factory tank has cracked or the cap seat has deteriorated.How do I know if my coolant reser...
View Coolant Reservoirs Products
Cooling
Shop performance cooling parts at Black Ops Auto Works for premium radiators, thermostat housings, thermostats, coolant reservoirs, expansion tanks, radiator hoses, oil coolers, transmission coolers, fans and shrouds, water pumps, and thermal management upgrades for street, track, towing, diesel, and high-horsepower builds. Whether you are trying to control engine temps, improve reliability, or support demanding performance use, this collection is built around proven cooling-system upgrades for serious enthusiasts. Shop Cooling Parts by Category Browse automotive cooling system components across key product categories, including: Radiators Coolant reservoirs and expansion tanks Thermostat housings and thermostats Radiator hose kits and silicone coolant hoses Oil coolers and oil cooler accessories Transmission coolers Coolant bypass kits and coolant filters Fans and shrouds Radiator caps Water pumps Radiator shrouds, radiator stays, and cooling plates Thermal wrap, thermal tape, an...
View Cooling Products
Engine
This engine parts collection covers oil catch cans, thermostats, thermostat housings, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, supercharger pulleys, idler pulleys, tensioner pulleys, and engine bay dress-up parts for trucks, SUVs, muscle cars, boosted builds, high-horsepower street cars, and performance vehicles that need better reliability, cooling, airflow, oil control, and under-hood styling. The collection is particularly strong for Dodge Challenger, Charger, Durango, Jeep Grand Cherokee Trackhawk, and Ram TRX platforms running 6.2L Hellcat, 6.4L HEMI, and 5.7L HEMI engines, where oil catch can and cooling upgrades address known OEM weaknesses in the PCV and thermal management systems. Import performance platforms including GM LS-based builds, Chevrolet Camaro, and Corvette applications are also represented through Mishimoto, CSF, and ZPE GripTec product lines. Builders who invest in engine bay organization and reliab...
View Engine Products
Mishimoto
Shop premium Mishimoto performance parts at Black Ops Auto Works, including Mishimoto radiators, intercoolers, oil coolers, baffled catch cans, silicone radiator hoses, thermostats, intake systems, charge pipes, transmission coolers, exhaust tips, wheel accessories, and universal cooling components. Mishimoto is a leading aftermarket brand for performance cooling, airflow, oil control, and engine bay upgrades. Whether you are building a street car, track car, tow rig, diesel truck, Jeep, off-road SUV, or daily driver, this collection helps you find Mishimoto parts by brand, vehicle application, and product category. Shop Mishimoto Cooling, Intake & Performance Parts Black Ops Auto Works carries a wide selection of Mishimoto aftermarket parts for cars, trucks, SUVs, Jeeps, diesel applications, and universal performance builds. Mishimoto Radiators & Cooling Components - performance aluminum radiators, coolant hoses, thermostats, expansion tanks, and thermal bypass solutions ...
View Mishimoto Products


