Dial in ignition timing on your 1983 Nissan Sentra (L4-1.5L) with the Standard Ignition Distributor Vacuum Advance, MPN VC-499 (also VC499). This vacuum advance unit mounts on the distributor and uses engine vacuum to advance ignition timing under light-load conditions, helping the engine run efficiently across its operating range. If a leaking or out-of-calibration original advance is the cause of poor timing response, this replaces it.
- Precision calibrated: set to deliver the correct ignition advance.
- Leak-tested: each unit is tested at 30 HG maximum vacuum to confirm it does not leak.
- Two hose connectors: built with two vacuum hose connections.
- Original-equipment heritage: from a manufacturer that has served the automotive aftermarket since 1919 with OE-level ignition products.
Signs the original advance may need replacing include a diaphragm that won't hold vacuum, sluggish part-throttle response, or reduced fuel economy — diagnose the cause before replacing. Country of origin: Italy. This item is available only while supplies last.
Interchange: V556 · JV1456 · VC4011 · 2230123
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicle does this vacuum advance fit?
It is a direct-fit replacement for the 1983 Nissan Sentra with the L4-1.5L engine. Confirm fitment for your vehicle before ordering.
What does a distributor vacuum advance do?
It uses engine vacuum to advance ignition timing under light-load conditions, helping the engine run more efficiently across its operating range.
How is this unit tested?
Each unit is leak-tested at 30 HG maximum vacuum to confirm it does not leak, and it is precision calibrated for the correct ignition advance.
How many hose connectors does it have?
This vacuum advance has two hose connectors for its vacuum connections.
What numbers does this part interchange with?
It interchanges with V556, JV1456, VC4011, and 2230123M07. Its own manufacturer part number is VC-499.
Write a Review