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Standard Ignition VC-168 Distributor Vacuum Advance
Distributor Vacuum Advance for Dodge Ignition Systems
Standard Ignition VC-168 is a distributor vacuum advance unit built for precise ignition timing control in classic Dodge applications. It uses one hose connector and is calibrated to help maintain correct advance response under vacuum conditions.
Compatible with 1970-1972 Dodge Challenger, 1970-1972 Dodge Charger, 1970-1972 Dodge Dart, and 1970 Dodge Monaco applications listed below, this Standard Ignition VC-168 distributor vacuum control is a direct-fit service part for breaker point and distributor-specific setups.
Key Features
- Distributor vacuum control for ignition timing advance
- Precision calibration for correct advance response
- Tested at 30HG maximum vacuum to verify leak resistance
- One hose connector for straightforward vacuum line connection
- Standard Ignition replacement for classic Dodge distributor service
Detailed Description
The VC-168 is a distributor vacuum advance component used to regulate ignition timing based on engine vacuum. In carbureted and breaker point ignition systems, proper vacuum advance helps the distributor respond correctly during light-load driving and idle conditions. Standard Ignition VC-168 is manufactured with calibration control throughout the process, from component selection to finished unit testing, to support consistent operation in the ignition system.
This part cross-references Standard Ignition V194 for the same application. It also serves as a replacement for select applications using distributor numbers 3438225, 3438517, and 3656390.
What It Helps Solve
- Incorrect ignition advance response
- Vacuum leak concerns in the distributor advance circuit
- Rough idle caused by a failing vacuum control unit
- Timing instability during light-throttle operation
- Service replacement needs for vintage Dodge ignition systems
Installation Notes and Tips
Verify distributor number and ignition type before installation. This part is listed for 1971-1972 Dodge Challenger, 1971-1972 Dodge Charger, and 1971-1972 Dodge Dart with distributor numbers 3438225, 3438517, or 3656390, plus 1972 Challenger, Charger, and Dart breaker point ignition applications. It is also listed for 1970-1972 Dodge Dart without NOx emission control, 1970-1971 Dodge Challenger, 1970-1971 Dodge Charger, 1971 Dodge Dart, and 1970 Dodge Monaco without NOx emission control. Confirm the vacuum hose connection and distributor setup before service.
Quality Assurance
Standard Ignition has served the automotive aftermarket since 1919 and manufactures ignition products with quality control maintained through the production process. VC-168 units are tested at 30HG maximum vacuum to help ensure the vacuum advance does not leak.
| Brand | Standard Ignition |
|---|---|
| Part Number | VC-168 |
| Contents | Distributor Vacuum Control |
This part fits 31 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1972 | Dodge | Challenger | 6.6L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1972 | Dodge | Challenger | 7.2L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1972 | Dodge | Challenger | 5.9L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1972 | Dodge | Challenger | Automatic | 5.2L | V8 | N/A | Breaker Point Ignition |
| 1972 | Dodge | Charger | 5.9L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1972 | Dodge | Charger | 3.7L | L6 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1972 | Dodge | Charger | Automatic | 5.2L | V8 | N/A | Breaker Point Ignition |
| 1972 | Dodge | Dart | 5.9L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1972 | Dodge | Dart | Automatic | 5.2L | V8 | N/A | w/o NOx Emission Control |
| 1971 | Dodge | Challenger | Automatic | 5.6L | V8 | N/A | |
| 1971 | Dodge | Challenger | 6.3L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Challenger | 7.2L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Challenger | 5.9L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Challenger | 7.0L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Challenger | Automatic | 5.2L | V8 | N/A | |
| 1971 | Dodge | Charger | Automatic | 5.6L | V8 | N/A | |
| 1971 | Dodge | Charger | 5.9L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Charger | Automatic | 5.2L | V8 | N/A | |
| 1971 | Dodge | Charger | 7.2L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Charger | 3.7L | L6 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Charger | 7.0L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Charger | 6.3L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Dart | 2.8L | L6 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Dart | 3.7L | L6 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Dart | 5.9L | V8 | N/A | Dist. No. 3438225, 3438517, 3656390 | |
| 1971 | Dodge | Dart | Automatic | 5.2L | V8 | N/A | w/o NOx Emission Control |
| 1971 | Dodge | Dart | Automatic | 5.6L | V8 | N/A | |
| 1970 | Dodge | Challenger | Automatic | 5.2L | V8 | N/A | |
| 1970 | Dodge | Charger | Automatic | 5.2L | V8 | N/A | |
| 1970 | Dodge | Dart | Automatic | 5.2L | V8 | N/A | w/o NOx Emission Control |
| 1970 | Dodge | Monaco | Automatic | 5.2L | V8 | N/A | w/o NOx Emission Control |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.