Standard Ignition Distributor Vacuum Advance VC-242
Standard Ignition Distributor Vacuum Advance VC-242 - view 2
Standard Ignition Distributor Vacuum Advance VC-242
Standard Ignition Distributor Vacuum Advance VC-242 - view 2

Distributor Vacuum Advance for 1980 Chevrolet Impala & More - Standard Ignition VC-242

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$26.99
MPN: VC-242
Item Package Quantity: 1
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Standard Ignition Distributor Vacuum Advance P/N:VC-242
Standard Ignition Distributor Vacuum Advance P/N:VC-242
$26.99

Help your distributor advance ignition timing the way it was designed to with the Standard Ignition Distributor Vacuum Advance VC-242. This vacuum advance control fits a wide range of classic GM cars and trucks. Examples include the 1977-1986 Chevrolet C10, 1977-1987 GMC Jimmy and 1981-1982 Chevrolet Corvette. See the Buyer's Guide tab for the full list of vehicles and engine details.

A distributor vacuum advance uses engine vacuum acting on a diaphragm to advance ignition timing at light load and part throttle. If a leaking or sticking vacuum advance is causing hesitation or sluggish cruise response, the VC-242 replaces it.

  • Precision calibration: The unit is calibrated for correct ignition advance.
  • Leak tested: Each unit is tested at 30HG maximum vacuum to confirm it does not leak.
  • Quality control: Standard is a global manufacturer of original equipment ignition products. It controls quality through the whole manufacturing process, from componentry to finished product.
  • Aftermarket heritage: Standard has served the automotive aftermarket since 1919 and focuses on quality and broad ignition coverage.

Interchange: 2-5313
25313 · V435 · DV1864 · VC1868 · 19138059 · 19733691 · 1973691

This part cross-references / interchanges with the following part numbers:

V435, DV1864, VC1868, 19138059, 19733691, 1973691, 2-5313

Frequently Asked Questions

What does a distributor vacuum advance do?

It uses engine vacuum acting on a diaphragm to advance ignition timing at light load and part throttle. Timing returns as vacuum drops. The VC-242 is designed to do this job on the listed GM applications.

What are signs a vacuum advance may need replacing?

Common signs include hesitation at cruise, reduced fuel economy, or a vacuum leak from a ruptured diaphragm. Other faults can cause these symptoms too, so diagnose the cause before replacing the part.

How is the VC-242 tested?

Each unit is tested at 30HG maximum vacuum to confirm it does not leak. It is also precision-calibrated for correct ignition advance.

Which vehicles does the VC-242 fit?

It fits many 1970s and 1980s GM vehicles, including the 1977-1986 Chevrolet C10, 1977-1987 GMC Jimmy and 1981-1982 Chevrolet Corvette. See the Buyer's Guide tab for the full list and engine details.

Who makes this vacuum advance?

Standard has served the automotive aftermarket since 1919 and manufactures original equipment ignition products. It maintains quality control from componentry to finished product.

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