Gen V Auxiliary Vacuum Port Manifold with Brass Hose Barb – 1/4" & 3/8"

Product Description

The PnP Tech Works Auxiliary Vacuum Port Manifold provides a clean, reliable, direct bolt-on solution for adding an additional intake manifold vacuum and pressure reference port to compatible Gen V engines.

Designed to install between the factory EVAP purge solenoid and OEM intake manifold, this assembly provides a convenient connection for aftermarket accessories such as boost controllers, auxiliary manifold absolute pressure (MAP) sensors, vacuum gauges, and other vacuum or pressure-operated devices.

The manifold body is precision CNC-machined from 6061-T6 aluminum and is available in either a natural raw aluminum finish or Type III black hardcoat anodizing for enhanced surface hardness, wear resistance, and corrosion protection.

The included brass hose barb fitting is precision CNC-machined from high-quality 360 brass and is available in 1/4" and 3/8" sizes, providing a convenient connection for compatible vacuum and pressure reference hoses.

Whether you're adding aftermarket engine management accessories, installing a boost controller, or monitoring intake manifold pressure, this complete assembly provides a durable, purpose-built solution without drilling, tapping, or permanently modifying the factory intake manifold.

Key Features

• Dedicated Auxiliary Vacuum/Pressure Port – Provides an additional intake manifold reference source for aftermarket accessories and instrumentation.

• Direct Bolt-On Installation – Installs between the factory EVAP purge solenoid and OEM intake manifold without drilling, tapping, or permanent modifications.

• Versatile Accessory Compatibility – Ideal for boost controllers, auxiliary MAP sensors, vacuum gauges, and other compatible vacuum or pressure-operated accessories.

• Brass Hose Barb Connection – Available in 1/4" and 3/8" sizes to accommodate compatible vacuum and pressure reference hoses.

• Precision CNC-Machined Aluminum Manifold – Manufactured from 6061-T6 aluminum for excellent strength, durability, and lightweight construction.

• CNC-Machined 360 Brass Fitting – Provides a durable, corrosion-resistant hose connection.

• Two Available Finishes – Choose between natural raw aluminum or Type III black hardcoat anodizing.

• Retains Factory EVAP Purge Solenoid – Maintains the original purge solenoid mounting arrangement while adding an additional manifold pressure reference port.

• No Intake Manifold Modifications – Utilizes the factory mounting location for a clean installation.

• Ideal for Engine Swaps and Custom Builds – Popular for applications utilizing L83 5.3L, L86 6.2L, L8T 6.6L, and L8P 6.6L engines with compatible OEM intake manifolds.

Common Applications

• Aftermarket boost controllers

• Auxiliary manifold absolute pressure (MAP) sensors

• Vacuum and boost gauges

• Aftermarket engine management systems

• Data logging and manifold pressure monitoring

• Vacuum-operated accessories

• Custom engine swap vacuum and pressure reference connections

Available Fitting Sizes

1/4" Brass Hose Barb

• Designed for compatible 1/4" inside-diameter vacuum or pressure reference hose

• Ideal for smaller accessory connections and instrumentation

3/8" Brass Hose Barb

• Designed for compatible 3/8" inside-diameter vacuum or pressure reference hose

• Suitable for accessories requiring a larger hose connection

Available Finishes

Raw Aluminum

• Natural CNC-machined 6061-T6 aluminum

• Clean, industrial appearance

• Ideal for custom finishing or natural aluminum engine builds

Type III Black Hardcoat Anodized

• Durable black hardcoat finish

• Enhanced surface hardness and wear resistance

• Improved corrosion protection

• Professional, low-profile appearance

Vehicle Applications

Chevrolet Silverado

• 2014–2018: LV3 4.3L, L83 5.3L, L86 6.2L

• 2019 Silverado Legacy: L83 5.3L

GMC Sierra

• 2014–2018: LV3 4.3L, L83 5.3L, L86 6.2L

• 2019 Sierra Limited: L83 5.3L

Chevrolet Tahoe

• 2015–2020: L83 5.3L, L86 6.2L

GMC Yukon

• 2015–2020: L83 5.3L, L86 6.2L

Chevrolet Suburban

• 2015–2020: L83 5.3L, L86 6.2L

GMC Yukon XL

• 2015–2020: L83 5.3L, L86 6.2L

Engine Swap Applications

Also popular for custom engine swaps utilizing compatible OEM intake manifolds:

• LV3 – 4.3L Gen V V6

• L83 – 5.3L Gen V V8

• L86 – 6.2L Gen V V8

• L8T – 6.6L Gen V V8

• L8P – 6.6L Gen V V8

Technical Specifications

• Manifold Material: CNC-Machined 6061-T6 Aluminum

• Fitting Material: CNC-Machined 360 Brass

• Available Finishes: Raw Aluminum / Type III Black Hardcoat Anodized

• Fitting Type: Hose Barb

• Available Fitting Sizes: 1/4" and 3/8"

• Hose Compatibility: Corresponding 1/4" or 3/8" Inside-Diameter Hose

• Application: Auxiliary Intake Manifold Vacuum/Pressure Reference

• Installation Location: Between Factory EVAP Purge Solenoid and OEM Intake Manifold

• Installation Type: Direct Bolt-On

• Engine Family: Gen V

What's Included

• (1) CNC-Machined 6061-T6 Aluminum Auxiliary Vacuum Port Manifold

• (1) CNC-Machined 360 Brass Hose Barb Fitting in Selected Size

Important Fitment Information

Designed for applications utilizing compatible Gen V OEM intake manifolds where an additional intake manifold vacuum or pressure reference source is required.

The manifold retains the factory EVAP purge solenoid and provides an additional port for aftermarket accessories without modifying the factory intake manifold.

Note: Select the appropriate hose barb size for your application. Compatible vacuum or pressure-rated hose and an appropriate hose retention method are required.

Verify intake manifold configuration, hose size, accessory requirements, and operating pressure compatibility before ordering.

Important: This product is intended for auxiliary vacuum and manifold pressure reference applications. It is not intended for brake booster vacuum supply or as a factory vacuum pump replacement.