Product Description
CNC Fabrication 423009 99.5-03 7.3L Billet Plenums - Black
The CNC Fabrication 423009 Billet Intake Plenum Set is a premium upgrade for 1999.5-2003 Ford 7.3L Power Stroke engines. Precision CNC machined from high-strength 6061-T6511 aircraft-grade aluminum, these billet plenums replace the factory stamped steel units with a stronger, more durable design that resists deformation under high boost conditions.
Unlike the factory sheet metal plenums, CNC Fabrication billet plenums maintain their shape when tightening intercooler boot clamps and provide improved durability for performance, towing, and high-boost applications. Finished in a sleek black coating and manufactured in the USA, the 423009 plenum kit includes installation hardware and Permatex Ultra Gray RTV sealant for a complete installation solution.
Features
- Direct replacement billet intake plenums for 1999.5-2003 7.3L Power Stroke engines
- Precision CNC machined from 6061-T6511 aircraft-grade aluminum
- Durable black finish
- Thicker wall construction for high-boost applications
- Stronger than factory stamped steel plenums
- Prevents center inlet distortion during boot clamp installation
- Compatible with aftermarket HPOP line kits
- Compatible with aftermarket fuel line kits
- CNC machined in-house
- Made in the USA
- Ideal upgrade for towing, performance, and competition applications
Fitment
- 1999.5 Ford F-Series 7.3L Power Stroke
- 2000 Ford F-Series 7.3L Power Stroke
- 2001 Ford F-Series 7.3L Power Stroke
- 2002 Ford F-Series 7.3L Power Stroke
- 2003 Ford F-Series 7.3L Power Stroke
- Compatible with aftermarket HPOP line kits
- Compatible with aftermarket fuel system upgrades
Note: If converting a 1994.5-1997 OBS or Early 1999 7.3L Power Stroke to a T4 turbocharger setup, these 3-inch billet plenums are commonly used and recommended for the conversion.
What's Included
- (2) CNC Fabrication Billet Intake Plenums - Black
- Complete Bolt and Nut Installation Kit
- Tube of Permatex Ultra Gray RTV Sealant
Specifications
- Manufacturer: CNC Fabrication
- Part Number: 423009
- Application: Billet Intake Plenum Upgrade
- Engine Compatibility: 1999.5-2003 Ford 7.3L Power Stroke
- Material: 6061-T6511 Aircraft-Grade Aluminum
- Finish: Black
- Manufacturing Process: CNC Machined
- Design: Heavy-Duty Thick Wall Construction
- Boost Compatibility: High-Boost Performance Applications
- HPOP Line Compatibility: Works With Aftermarket HPOP Line Kits
- Fuel Line Compatibility: Works With Aftermarket Fuel Line Kits
- Sealant Included: Permatex Ultra Gray RTV
- Hardware Included: Yes
- Country of Origin: USA
Cross Reference Numbers
423009, CNC423009, 7.3 Billet Plenums, 7.3 Intake Plenums, 7.3 Power Stroke Billet Intake Manifold Plenums, 7.3L Billet Intake Upgrade, Black Billet Plenums
FAQ
What are the benefits of billet intake plenums over factory plenums?
Billet plenums offer significantly greater strength than factory stamped steel units, preventing deformation around the intercooler boot connection and providing improved durability for high-boost applications.
Will these fit my 2002 7.3L Power Stroke?
Yes. The CNC Fabrication 423009 plenum kit is designed for 1999.5-2003 Ford 7.3L Power Stroke engines.
Are installation hardware and sealant included?
Yes. The kit includes the necessary bolts, nuts, and a tube of Permatex Ultra Gray RTV sealant for installation.
Will these work with aftermarket HPOP lines?
Yes. These billet plenums are designed to work with aftermarket HPOP line kits as well as aftermarket fuel line systems.
Can these be used on a T4 turbo conversion?
Yes. These 3-inch billet plenums are commonly used when converting 1994.5-1997 OBS and Early 1999 7.3L Power Stroke engines to T4 turbocharger configurations.
What is the recommended plenum bolt torque specification?
CNC Fabrication recommends torquing the plenum bolts to 20 ft-lbs during installation.
