1. Engine Crankshafts Products
  2. sku: 20661884896740872
  3. MITSUBISHI MR309801

MITSUBISHI MR309801 Cruise Control Vacuum Pump

fits model: Galant. make: Mitsubishi. year: 1993–1998.

Mr309801 Mitsubishi 93-98 Galant Cruise Control Vacuum Pump

( Manufacturer Part Number: MR309801 ), ( Part Type: Cruise Control Vacuum Pump ), ( Genuine Oem: Yes )

Review MITSUBISHI Cruise Control Vacuum Pump fits GALANT 1993–1998

The **Mitsubishi MR309801 Cruise Control Vacuum Pump** is a precision-engineered component designed specifically for Mitsubishi Galant models produced between 1993 and 1998, ensuring seamless integration with the vehicle s cruise control system. This high-quality vacuum pump is crafted to deliver reliable and consistent vacuum pressure, which is essential for the smooth operation of the cruise control mechanism, allowing drivers to maintain a set speed with minimal effort. Constructed from durable materials, including a robust housing and a long-lasting diaphragm, this pump is built to withstand the demands of daily driving, providing long-term performance without frequent replacements. The MR309801 features a compact yet efficient design, ensuring it fits perfectly within the engine bay of the Galant, whether it s the base or higher trims, without requiring any modifications. Its smooth operation reduces engine strain while maintaining optimal vacuum levels, contributing to the overall efficiency and comfort of the vehicle. Whether replacing a worn-out original component or upgrading an older system, this vacuum pump offers a dependable solution that enhances the functionality of the cruise control, making long-distance travel more enjoyable and stress-free. Ideal for both professional mechanics and DIY enthusiasts, the MR309801 is a straightforward yet critical part that ensures the cruise control system operates with precision and reliability.

### Pros and Cons of Buying a Mitsubishi MR309801 (1993 1998 Galant) Cruise Control Vacuum Pump

#### **Pros:**

1. **Compatibility** The MR309801 is a direct-fit replacement for the cruise control vacuum pump in 1993 1998 Mitsubishi Galant models, ensuring an exact match in terms of mounting, wiring, and function.

2. **Reliability** Cruise control vacuum pumps are relatively simple mechanical components. A high-quality aftermarket or OEM replacement should function reliably if installed correctly.

3. **Cost-Effective Fix** Replacing the pump is often cheaper than overhauling the entire cruise control system or dealing with intermittent failures caused by a failing pump.

4. **Easy Installation** The part is typically accessible under the dashboard or near the firewall, and installation usually requires basic tools (screwdriver, wire connectors, possibly a vacuum gauge).

5. **Prevents Further Damage** A failing vacuum pump can cause erratic cruise control behavior, which may lead to wear on the vacuum lines, hoses, or even the cruise control module if left unaddressed.

6. **Aftermarket Options** Some aftermarket pumps are designed to be more durable than OEM units, potentially extending the lifespan of the cruise control system.

#### **Cons:**

1. **Aging Parts Risk** Even a new pump may fail prematurely if the vacuum lines, hoses, or the cruise control module itself are degraded. A thorough inspection of the system is recommended before purchase.

2. **Quality Variability** Not all aftermarket pumps are equal. Cheaper or low-quality replacements may fail quickly or have poor sealing, leading to leaks or erratic operation.

3. **Diagnostic Challenges** If the cruise control system has underlying issues (e.g., a faulty module, corroded wiring, or vacuum leaks elsewhere), replacing just the pump may not fully resolve the problem.

4. **Limited Availability** OEM pumps for older Mitsubishi models can be hard to find, and aftermarket options may require sourcing from specialty auto parts suppliers.

5. **Potential for Misinstallation** If not installed correctly (e.g., improper vacuum line connections, loose wiring, or incorrect vacuum pressure settings), the pump may not function as intended.

6. **False Sense of Security** Some drivers assume replacing the pump will fix all cruise control issues, only to discover other components (e.g., the vacuum switch or solenoid) are also failing.

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### **Conclusion:**

Replacing the Mitsubishi MR309801 cruise control vacuum pump is a practical solution for restoring basic cruise control functionality in 1993 1998 Galant models. The part is straightforward to source and install, and it can prevent further degradation of the system. However, success depends on selecting a high-quality replacement and ensuring the rest of the cruise control components (vacuum lines, module, wiring) are in good condition. If the issue persists after replacement, further diagnostics may be necessary.

### **Recommendation:**

1. **Verify the Problem** Confirm that the vacuum pump is indeed the source of the issue by checking for vacuum leaks, testing the pump s operation (if possible), or consulting a scan tool for cruise control error codes.

2. **Choose a Reputable Supplier** Opt for an OEM or high-quality aftermarket pump from a trusted brand (e.g., Dorman, Delphi, or a well-reviewed aftermarket manufacturer). Avoid extremely cheap no-name parts.

3. **Inspect the System** While replacing the pump, inspect the vacuum lines, hoses, and connections for cracks, leaks, or corrosion. Replace any damaged components.

4. **Professional Installation (If Needed)** If you lack experience with automotive electrical or vacuum systems, consider having a mechanic install the pump to ensure proper wiring and sealing.

5. **Test Thoroughly** After installation, test the cruise control at various speeds and conditions to confirm the pump is functioning correctly. Monitor for any recurring issues.

If the cruise control system continues to malfunction after the pump replacement, the problem may lie elsewhere (e.g., the cruise control module, solenoid, or wiring harness), and further diagnostics would be required.

Details:

New old stock.

part #: mr309801 price

  • $149.99

specifications cranshafengin:

  • for models: Galant
  • for makes: Mitsubishi
  • for years: 1993-1998
  • mpn: Mr309801
  • part type: Cruise Control Vacuum Pump
  • genuine oem: Yes

offer cranshafengin:

  • availability: In Stock
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  • started: June 2, 2026
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general cranshafengin:

  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
  • condition: New
for models: galant, for makes: mitsubishi, for years: 1993-1998, part type: cruise control vacuum pump, genuine oem: yes,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 20661884896740872,
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