Subject: New Vacuum Modulator Hoses
Model and Year: All 1972 - 1973 Models with Automatic Transmission
Source: Chevrolet Service News
Page Number: Page 1
Date: November 1972, Volume 44, Number 11
Two new vacuum modulator hoses have been released for service use on all 1972 and 1973 models equipped with automatic transmission. The new hoses have increased strength and heat resistant properties and should be utilized as follows:
| PART NUMBER | MATERIAL | YEARS | MODELS | LOCATION USED |
|---|---|---|---|---|
| 326560 | Hypalon | 1972 & 73 | All | Vac Mod Pipe to Trans. |
| (Black) | 1972 | All | Carb to Vac Mod Pipe | |
| 1973 | All (Exc. L6 Engine) | Carb to Vac Mod Pipe | ||
| 326560 | Viton (Green) | 1973 | L6 Engine Only | Carb to Vac Mod Pipe |
Bulk fuel resistant hose will continue to be released for past model service.
Article ID: 839
Created: August 10, 2014
Last Updated: August 10, 2014
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article/1972-1973-corvette-service-news-new-vacuum-modulator-hoses-839.html