Fluidampr 400018 Dry Sump Adapter 2011-2026 Ford F-250 F-350 F-450 F-550 6.7L Power Stroke

The Fluidampr 400018 is a competition-only dry sump adapter designed specifically for the 2011-2026 Ford F-250, F-350, F-450, and F-550 Super Duty with the 6.7L Power Stroke diesel. Built for race teams and engine builders running external dry sump oiling systems on the 6.7L Power Stroke, the 400018 mounts to the front flange of the Fluidampr p/n 800241 performance damper and positions the mandrel drive beyond the damper mounting bolts while maintaining common dry sump drive alignment. Constructed from lightweight aluminum with a corrosion-resistant black anodize finish, the 400018 is engineered and manufactured in the USA at Fluidampr's Springville, NY facility.

Key Features of the Fluidampr 400018 Dry Sump Adapter

• Lightweight aluminum construction reduces rotating mass compared to steel alternatives
• Black anodized finish provides corrosion resistance suited to demanding competition environments
• 3.20-inch bolt circle with three 3/8-16 UNC threaded holes for compatibility with common dry sump mandrel drive configurations
• Mounts via 3 of the 6 holes on the 800241 damper's 3.75-inch bolt circle using the existing 3/8-24 UNF-28 hole pattern
• Positions the mandrel drive correctly beyond the damper mounting bolts while maintaining standard dry sump drive alignment
• Made in USA at Fluidampr's ISO 9001:2015 certified facility in Springville, NY
• Designed exclusively for the 6.7L Power Stroke Ford F-250, F-350, F-450, and F-550 Super Duty (2011-2026)

Important Compatibility Requirements

The 400018 requires Fluidampr p/n 800241 (sold separately). This adapter is designed exclusively for use with the Fluidampr 800241 Performance Diesel crankshaft damper. It will not mount to any other damper, OEM balancer, or third-party unit. Do not order the 400018 unless you already have, or are ordering, the Fluidampr 800241.

NOT compatible with dual belt high-output alternator systems. The 400018 and the 800241 damper are not designed for Ford Super Duty applications fitted with the dual belt high-output alternator accessory drive configuration. A separate pulley solution for that configuration was announced by Fluidampr as a planned future release as of May 2026. Verify your truck's alternator and accessory drive configuration before purchasing.

What's Included

• 1x Fluidampr 400018 Dry Sump Adapter (black anodized aluminum)

Not included: Fluidampr p/n 800241 damper (required, sold separately). Mounting hardware is also sold separately. For high-performance installations, Fluidampr recommends the High Strength Bolt Kit p/n 300016, which includes ARP fasteners and a diamond-coated friction washer, sold separately.

Fitment - 2011-2026 Ford F-250, F-350, F-450, F-550 Super Duty 6.7L Power Stroke

The 400018 fits the 2011-2026 Ford F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, and F-550 Super Duty with the 6.7L Power Stroke diesel (turbocharged V8). This adapter is a competition accessory and requires Fluidampr p/n 800241 to be installed. It is not compatible with dual belt high-output alternator configurations. Confirm your truck's engine and accessory drive configuration before ordering.

Full Specifications

Warranty and Legal Information

The 400018 is covered by Fluidampr's 1-year limited warranty against defects in material and workmanship. The warranty applies to the original purchaser only and requires proof of purchase. Fluidampr will repair or replace the product at its discretion; the customer is responsible for shipping the item to Fluidampr, and Fluidampr covers return shipping via UPS Ground if the product is found to be defective. An RMA number is required for all warranty returns.

Important warranty exclusion: Fluidampr's warranty explicitly excludes use in racing applications or competitive purposes. Because the FDR400018 is a competition-only dry sump accessory intended for race engines, buyers should understand that warranty coverage does not apply to racing use. The warranty also excludes failures due to improper installation, misuse, modifications, or normal wear and tear.

The 400018 is not an emissions-related component and is not governed by CARB or EPA street-use regulations. It may be sold and used in all 50 states. Under the federal Magnuson-Moss Warranty Act, installing an aftermarket performance part cannot void your factory vehicle warranty unless the manufacturer can demonstrate that the specific part directly caused the failure being claimed.

California residents: This product contains chemicals known to the State of California to cause cancer and reproductive harm. See www.p65warnings.ca.gov for more information.

About Fluidampr

Fluidampr is a brand of Vibratech TVD, a division of Horschel Brothers LLC, manufactured 100% in the USA at their ISO 9001:2015 certified facility at 180 Zoar Valley Road, Springville, NY 14141. Fluidampr performance dampers use viscous damper technology a precision-machined housing filled with calibrated silicone fluid to provide broadband torsional vibration damping across a wide RPM range, unlike elastomer-based OEM balancers that are tuned to a narrow frequency band. This technology is used by professional race teams across diesel drag racing, sled pulling, and high-output competition diesel applications. The 400018 dry sump adapter is a purpose-built accessory that extends the competition capability of the Fluidampr 800241 damper to teams running external dry sump oiling on the 6.7L Power Stroke. All Fluidampr products are designed, engineered, and manufactured in the USA.

Frequently Asked Questions

What is a dry sump oiling system, and why does it need an adapter like the 400018?
A dry sump oiling system replaces the engine's wet sump (stock oil pan) with an external oil tank, scavenge pumps, and a pressure pump driven by a mandrel on the front of the crankshaft. These systems are common in dedicated race vehicles because they maintain consistent oil pressure under hard cornering, acceleration, and braking where a wet sump would slosh and uncover the pickup. The 400018 provides the mandrel drive attachment point on the Fluidampr 800241 damper, allowing teams to bolt a standard dry sump mandrel drive to the 3.20-inch bolt circle without interfering with the damper's mounting hardware.

Does the 400018 fit my 2011-2026 Ford F-250, F-350, F-450, or F-550 with the 6.7L Power Stroke?
Yes, the 400018 is designed for the 2011-2026 Ford F-250, F-350, F-450, and F-550 Super Duty with the 6.7L Power Stroke diesel engine. However, fitment requires that you have already installed or are purchasing the Fluidampr 800241 performance damper, which is sold separately. This adapter does not attach to your OEM balancer. Also confirm that your truck does not have a dual belt high-output alternator system, as that configuration is not supported.

What else do I need besides the 400018?
You need the Fluidampr p/n 800241 performance damper (sold separately), which is required for the FDR400018 to mount. For the damper installation itself, Fluidampr recommends the High Strength Bolt Kit p/n 300016, which includes ARP fasteners and a diamond-coated friction washer (sold separately). You will also need your dry sump mandrel drive assembly, which is sourced from your dry sump system supplier.

Does the Fluidampr warranty cover racing use of the 400018?
No. Fluidampr's 1-year limited warranty explicitly excludes use in racing applications or competitive purposes. The 400018 is sold as a competition-only part, and the intended use dry sump oiling in a race engine falls outside the warranty coverage. Buyers should understand this before purchasing. The warranty exclusion also covers failures caused by improper installation, modifications, or misuse.

Is the 400018 compatible with the dual belt high-output alternator on my Super Duty?
No. The 400018 and the companion Fluidampr 800241 damper are not compatible with dual belt high-output alternator accessory drive configurations. As of May 2026, Fluidampr announced a separate pulley solution for that configuration is planned for a future release. Do not order the 400018 if your truck is equipped with a dual belt high-output alternator. If you are unsure which alternator configuration your truck has, consult your dealer or a diesel performance shop before ordering.

How difficult is it to install the 400018?
The 400018 itself is a straightforward bolt-on adapter it attaches to three of the six existing 3/8-24 UNF-28 holes on the 800241 damper's 3.75-inch bolt circle using three 3/8-16 UNC fasteners (hardware sold separately via p/n 300016). The more involved portion of the installation is fitting the Fluidampr 800241 damper to the 6.7L Power Stroke crankshaft, which requires proper torque specs, a harmonic balancer installation tool, and experience with diesel engine front-end work. This installation is best performed by a qualified engine builder or diesel performance shop familiar with competition 6.7L Power Stroke builds.

Will installing the 400018 and the 800241 damper void my Ford factory warranty?
Under the federal Magnuson-Moss Warranty Act, a manufacturer cannot void your factory powertrain warranty simply because you installed an aftermarket part. They must demonstrate that the specific aftermarket part directly caused the failure in question. That said, the 400018 is a competition-only accessory intended for race-built engines, not street-driven vehicles. If you are running this product on a street truck, note that the dry sump system installation itself involves significant engine modifications that may affect warranty coverage. Consult your Ford dealer and an automotive attorney if warranty coverage is a concern.

What is the Prop 65 warning on the 400018?
California's Proposition 65 requires businesses to provide a warning before knowingly exposing anyone to chemicals listed as causing cancer or reproductive harm. The FDR400018 carries a Prop 65 warning because it contains materials such as metals and coatings found in aluminum and anodized components that appear on the Prop 65 list. This warning does not restrict the sale of the product in California or any other state. For more information, visit www.p65warnings.ca.gov.

Is the 400018 compatible with other Fluidampr dampers or non-Fluidampr balancers?
No. The 400018 is designed exclusively for the Fluidampr p/n 800241 damper. It uses 3 of the 6 pre-drilled holes on the 800241's specific 3.75-inch bolt circle. It will not fit OEM Ford balancers, the predecessor Fluidampr 800221, or any other third-party damper. Do not attempt to use the FDR400018 with any damper other than the Fluidampr 800241.