TC178 Nitrous Solenoid

Name: TC178 Nitrous Solenoid
Brand: NOS
SKU: 741-18178NOS
Price: 318.95 USD
Availability: InStock

^$318⁹⁵

Ships on Sep 04, 2026

Lowest Price Guarantee

TC Series Solenoids

TC178 Nitrous Solenoid

900 Max HP

1/4 in. NPT Inlet

1/8 in. NPT Outlet

Bottom or Side Outlet Location

0.178 in. Orifice

PTFE Plunger

20 Amps Current Draw @ 12VCD

Blue Finish

NOS INC/HOLLEY 18178NOS Features:

NOS TC178 Nitrous Solenoid was developed for one purpose; deliver the most nitrous volume possible for a single solenoid. With a 0.178" outlet orifice, the TC178 has the ability to flow in excess of 900 horsepower of nitrous from a single solenoid. The TC178 base is also constructed of 6061 Aluminum and then clear anodized. This reduces the weight by 1/4 of a pound over the NOS Super BigShot Trash Can Solenoid, and still retains the mounting location on the base. If maximum power from a single stage of nitrous is what you need, get the new NOS TC17Current Draw is 20 Amps at 12 volts DC.This Solenoid can be used with a progressive controller

Supports in excess of 900 horsepower
Inlet Port Size - 1/4" NPT (Side)
Outlet Port Size - 1/8" NPT (Bottom)
Purge Port Size - 1/8" NPT (Side)
Orifice - 0.178"
Plunger - PTFE
Light Weight Aluminum - 1.66 lbs.
Material - 6061 Aluminum
Saves 1/4 lb. over similar steel solenoids

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeNitrous Solenoid

BrandNOS

Package Height3.5

Package Width4.4

Package Length4.7

Weight1.79 PG

Part CategoryPerformance Parts

Part FitmentUniversal

Vendor Part Number18178NOS

Package Qty1

Package TypeEA