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![551927-375NP Brake Booster Vacuum Port Fitting for GM Gen III/IV LS Engines w/Truck Crank Pulley [3/8 in. NPT]](https://www.jegs.com/images/mini_750/300/335/335-551927-375np.jpg)
Vehicle Info NeededICT BILLETPART NUMBER: 335-551927-375NP
551927-375NP Brake Booster Vacuum Port Fitting for GM Gen III/IV LS Engines w/Truck Crank Pulley [3/8 in. NPT]
$2000
Ships on 09/21/2026
Lowest Price GuaranteeBrake Booster Fitting
- Brake Booster Vacuum Port Fitting
- GM Gen III/IV LS Engines w/ Truck Crank Pulley
- Converts Rear Intake Port to 3/8 in. NPT
- Supports Brake Booster or Vacuum Accessories
- Billet Aluminum
- Sold Individually
This billet aluminum vacuum fitting converts the push lock rear port on GM Gen III/IV LS intake manifolds to a 3/8 in. NPT thread, making it easier to route custom vacuum lines or attach a brake booster. Designed for LS intake manifolds using the truck crank pulley spacing, the fitting ensures a secure seal in performance and street applications.
ICT Billet 551927-375NP Features:
- Converts Rear Intake Port to 3/8 in. NPT Thread
- Compatible with Gen III/IV LS Manifolds Using Truck Pulley Spacing
- Supports Brake Boosters or Vacuum Accessories
- Machined from Aerospace-Grade Billet Aluminum
Part TypeVacuum Fitting
BrandICT BILLET
Package Height1.0
Package Width3.0
Package Length4.0
Weight0.04 PG
Part CategoryAccessories
Fitting StyleCoupler
Thread Size (In.)3/8 NPT
MaterialBillet Aluminum
Fitting TypeHose Barb to Vaccum
Part FitmentSemi Universal
Vendor Part Number551927-375NP
Package Qty1
Package TypeEA
No Questions
No Reviews
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