/live/media/SI/SI_VC173_Fro.jpg)
OE Quality
60-Day Returns
Standard Ignition VC-173 Distributor Vacuum Advance
Distributor Vacuum Advance for Dodge Ignition Service
Standard Ignition VC-173 is a distributor vacuum advance unit built for precise ignition timing control. It is calibrated to deliver correct advance response and tested at up to 30 inHg vacuum to help confirm leak-free operation. This distributor vacuum control supports service work on classic Dodge ignition systems, including Dodge Challenger, Dodge Charger, and Dodge Dart applications.
Key Features
- Distributor vacuum control for ignition timing adjustment
- Precision calibration for correct ignition advance response
- Vacuum-tested at 30 inHg maximum to verify sealing performance
- One hose connector for straightforward vacuum line connection
- Standard Ignition VC-173 for OE-style distributor service
Application Details
Compatible With 1975-1977 Dodge B100, 1975-1977 Dodge D100, and 1975-1977 Dodge Ramcharger with OE No. 3656257, 266. It also fits 1970-1972 Dodge Challenger and 1970-1972 Dodge Charger with distributor numbers 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, and 3656266, plus 1970-1972 Dodge Dart and 1969 Dodge Dart applications listed for U.S. emissions distributor ignition pickup and Canada emissions configurations. Standard Ignition VC-173 is a direct-fit service part for these distributor vacuum advance applications.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Problems It Can Address
- Incorrect ignition advance response during acceleration
- Vacuum leaks at the distributor advance unit
- Rough throttle transition caused by worn vacuum control components
- Timing instability in older Dodge distributor systems
- Service replacement needs for original vacuum advance hardware
Installation Notes and Tips
Verify distributor number, OE reference, and emissions configuration before installation. Inspect the vacuum hose and distributor canister connection for cracks, looseness, or contamination before replacing the unit. After installation, confirm timing and advance operation according to the vehicle service procedure.
Quality Assurance
Standard Ignition has supplied the automotive aftermarket since 1919 and maintains quality control from component manufacturing through finished product inspection. VC-173 is tested for vacuum integrity and built to support consistent ignition advance performance.
| Brand | Standard Ignition |
|---|---|
| Part Number | VC-173 |
| Contents | Distributor vacuum control |
| Hose Connector Quantity | 1 |
This part fits 54 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1977 | Dodge | B100 | 3.7L | L6 | N/A | OE No. 3656257, 266 | |
| 1977 | Dodge | D100 | 3.7L | L6 | N/A | OE No. 3656257, 266 | |
| 1977 | Dodge | Ramcharger | 3.7L | L6 | N/A | OE No. 3656257, 266 | |
| 1976 | Dodge | B100 | 3.7L | L6 | N/A | OE No. 3656257, 266 | |
| 1976 | Dodge | D100 | 3.7L | L6 | N/A | OE No. 3656257, 266 | |
| 1976 | Dodge | Ramcharger | 3.7L | L6 | N/A | OE No. 3656257, 266 | |
| 1975 | Dodge | B100 | 3.7L | L6 | N/A | OE No. 3656257, 266 | |
| 1975 | Dodge | D100 | 3.7L | L6 | N/A | OE No. 3656257, 266 | |
| 1975 | Dodge | Ramcharger | 3.7L | L6 | N/A | OE No. 3656257, 266 | |
| 1972 | Dodge | Challenger | 5.9L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1972 | Dodge | Challenger | 7.2L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1972 | Dodge | Challenger | Automatic | 3.7L | L6 | N/A | |
| 1972 | Dodge | Challenger | 6.6L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1972 | Dodge | Charger | 5.9L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1972 | Dodge | Charger | Automatic | 3.7L | L6 | N/A | |
| 1972 | Dodge | Charger | 3.7L | L6 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1972 | Dodge | Dart | Automatic | 3.7L | L6 | N/A | |
| 1972 | Dodge | Dart | 5.9L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1972 | Dodge | Dart | 3.2L | L6 | N/A | ||
| 1971 | Dodge | Challenger | 7.2L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Challenger | 3.2L | L6 | N/A | ||
| 1971 | Dodge | Challenger | Automatic | 3.7L | L6 | N/A | |
| 1971 | Dodge | Challenger | 6.3L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Challenger | 5.9L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Challenger | 7.0L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Charger | 3.7L | L6 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Charger | 7.2L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Charger | 7.0L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Charger | Automatic | 3.7L | L6 | N/A | |
| 1971 | Dodge | Charger | 5.9L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Charger | 6.3L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Dart | 3.7L | L6 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Dart | 3.2L | L6 | N/A | ||
| 1971 | Dodge | Dart | 5.9L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1971 | Dodge | Dart | Automatic | 3.7L | L6 | N/A | |
| 1971 | Dodge | Dart | 2.8L | L6 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1970 | Dodge | Challenger | 3.7L | L6 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1970 | Dodge | Challenger | 7.2L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1970 | Dodge | Challenger | 6.3L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1970 | Dodge | Challenger | Automatic | 3.7L | L6 | N/A | |
| 1970 | Dodge | Challenger | 3.2L | L6 | N/A | ||
| 1970 | Dodge | Challenger | 7.0L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1970 | Dodge | Charger | 6.3L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1970 | Dodge | Charger | Automatic | 3.7L | L6 | N/A | |
| 1970 | Dodge | Charger | 7.0L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1970 | Dodge | Charger | 5.6L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1970 | Dodge | Charger | 7.2L | V8 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1970 | Dodge | Dart | 3.2L | L6 | N/A | ||
| 1970 | Dodge | Dart | Automatic | 3.7L | L6 | N/A | |
| 1970 | Dodge | Dart | 2.8L | L6 | N/A | Dist. No. 2875826, 3438237, 3438440, 3438442, 3438524, 3656257, 3656266 | |
| 1969 | Dodge | Charger | 3.7L | L6 | N/A | ||
| 1969 | Dodge | Dart | 2.8L | L6 | N/A | Compatible with vehicles equipped with U.S. Emissions for Distributor Ignition Pickup. | |
| 1969 | Dodge | Dart | Automatic | 3.7L | L6 | N/A | Compatible with vehicles equipped with Canada Emissions. |
| 1969 | Dodge | Dart | Automatic | 3.7L | L6 | N/A | Compatible with vehicles equipped with U.S. Emissions for Distributor Ignition Pickup. |
* 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.