Ignitions and Electrical› Distributors, Magnetos and Crank Triggers

Petris

Optispark Distributor Vacuum Harness

$99.99

SKU: OEM / Interchange Numbers = 12555323

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Petris Optispark Distributor Vacuum Harness is a replacement component for LT1 and LT4 engines equipped with a ventilated Optispark distributor. It fits B-, D-, and F-body vehicles from 1993-1997, including the Camaro, Firebird, Impala SS, Fleetwood, Caprice, and Roadmaster. This harness replaces the discontinued GM part number 12555323.

The check valve and filter are constructed from durable Viton material and feature an integral orifice to help prevent cap implosion.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandPetris
Part NumberOEM / Interchange Numbers = 12555323
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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