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  3. MOPAR 4227167

MOPAR 4227167 Nos Air Pump Check Valve Omni Charger Horizon 4105999 Omni/charger/horizon

fits make: Mopar. year: 1981–1987.

4227167 Mopar Nos Air Pump Check Valve Fits 81-87 Omni/charger/horizon

( Manufacturer Part Number: 4227167 ), ( Part Type: Valve Pump Check Charger ), ( Ipn: 4105999 ), ( Manufacturer Warranty: No Warranty ), ( Universal Fitment: Direct Replacement ), ( Vintage Part: Yes ), ( Finish: Anodized Metal ), ( Country Of Origin: United States ), ( Performance Part: No )

Review MOPAR Nos Air Pump Check Valve Omni/charger/horizon fits 1981–1987

The **Mopar 4227167 NOS (New Old Stock) Air Pump Check Valve** is a meticulously preserved, high-performance component designed exclusively for Chrysler s iconic 1981 through 1987 models, including the **Omni, Charger, and Horizon** series. This check valve is a critical part of the vehicle s supercharger system, ensuring proper airflow and pressure regulation within the forced induction setup. Crafted from durable, high-grade materials, this NOS part retains the original factory specifications, guaranteeing an exact fit and seamless integration with the engine s intake manifold and supercharger assembly. The check valve operates by allowing air to flow freely into the supercharger while preventing backflow, which helps maintain optimal boost levels and prevents engine vacuum loss critical for both performance and drivability. Ideal for restorers, enthusiasts, and mechanics seeking authentic, high-quality replacement parts, this valve is a testament to Mopar s commitment to preserving the integrity of classic Chrysler applications. Whether used in a meticulously restored project car or as a reliable upgrade for a high-mileage vehicle, the **4227167 check valve** delivers the reliability and precision expected from a genuine NOS component, ensuring peak performance and longevity in your engine s forced induction system.

The **Mopar 4227167 NOS (No-Order-Special) Air Pump Check Valve** is designed for Chrysler vehicles from the 1981 1987 model years, specifically for the **Omni, Charger, and Horizon** platforms. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Original Equipment Quality (OEM)**

The part is a direct replacement for the factory air pump check valve, meaning it meets Chrysler s original specifications. This ensures proper fitment, functionality, and compatibility with the vehicle s emissions and cooling systems.

2. **Reliability and Durability**

As a NOS part, it is sourced from Chrysler s original inventory or authorized suppliers, which typically means it is built to withstand the same conditions as the original component. This reduces the risk of premature failure compared to aftermarket parts of unknown quality.

3. **Emissions Compliance**

The air pump check valve plays a critical role in the vehicle s evaporative emissions control system (EVAP). A failing check valve can lead to emissions failures or poor engine performance. A NOS part ensures the system operates as intended, helping the vehicle pass emissions tests.

4. **Ease of Installation**

Since it is a direct replacement, the installation process is straightforward. No modifications to the vehicle are required, and it should fit seamlessly into the existing air pump assembly.

5. **Availability of Support**

Mopar (Chrysler s parts division) provides customer support and warranty coverage for NOS parts, which can be useful if issues arise post-installation. This is less common with generic aftermarket parts.

6. **Compatibility with Other NOS Parts**

If you are restoring or maintaining your vehicle with NOS components, this check valve will integrate seamlessly with other Mopar parts, ensuring consistency in performance and reliability.

7. **Reduced Risk of Counterfeit Parts**

NOS parts are less likely to be counterfeit or substandard compared to cheaper aftermarket alternatives, which may cut corners on materials or manufacturing processes.

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### **Cons**

1. **Cost**

NOS parts are generally more expensive than aftermarket alternatives. The price reflects the quality, authenticity, and support, but it may be a significant investment for budget-conscious buyers. The cost can vary depending on availability and demand, but it is typically higher than non-OEM options.

2. **Limited Availability**

NOS parts may not be as widely stocked as common aftermarket parts. This could result in longer lead times or difficulty finding the part if you are not purchasing from a well-stocked dealer or online retailer. Some NOS parts become harder to source as they age out of production.

3. **Overkill for Some Applications**

If your vehicle is not heavily used or is primarily driven in mild conditions, the benefits of a NOS part may not justify the cost. For example, if the check valve is only failing due to age and not due to extreme stress, a lower-cost aftermarket part might suffice.

4. **Potential for Overpaying**

Some buyers may pay a premium for the NOS designation without fully understanding the differences between NOS, remanufactured, or new aftermarket parts. In some cases, a high-quality aftermarket part (e.g., from a reputable brand like ACDelco or Bosch) may offer similar performance at a lower cost.

5. **No Guarantee of Original Condition**

While NOS parts are new or reconditioned to original specifications, they are not necessarily in "like-new" condition. For example, a used NOS part that has been refurbished may still have wear or minor imperfections that could affect longevity.

6. **Environmental and Ethical Considerations**

NOS parts are sourced from original inventory or authorized suppliers, which may involve ethical or environmental concerns depending on the supplier. Some buyers prefer to support fully new or recycled parts to reduce waste.

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### **Conclusion**

The **Mopar 4227167 NOS Air Pump Check Valve** is an excellent choice if you prioritize **reliability, emissions compliance, and OEM quality** for your 1981 1987 Chrysler Omni, Charger, or Horizon. Its direct replacement nature ensures proper fitment and functionality, and the support from Mopar adds an extra layer of confidence. However, the higher cost and potential availability issues may be drawbacks for some buyers.

If your primary concern is **cost savings** and the vehicle is not heavily used, a **high-quality aftermarket alternative** (e.g., from a trusted brand) could be a viable option. On the other hand, if you are restoring a classic vehicle, maintaining originality, or ensuring emissions compliance, the NOS part is a strong recommendation.

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### **Recommendation**

**Buy the Mopar 4227167 NOS Air Pump Check Valve if:**

- You value OEM quality and want to ensure the vehicle meets emissions standards.

- You are restoring or maintaining a classic vehicle and prefer authenticity.

- You are willing to invest in a part that offers long-term reliability and support.

- You have confirmed that the part is available from a reputable supplier (e.g., Mopar dealers, online marketplaces like RockAuto, or specialty classic car parts stores).

**Consider an aftermarket alternative if:**

- You are on a tight budget and the vehicle is not heavily used.

- You have verified that a high-quality aftermarket part (e.g., from ACDelco, Bosch, or a well-reviewed brand) meets your needs.

- You are unable to source the NOS part quickly and need a replacement sooner.

Ultimately, the best choice depends on your priorities whether that is **cost efficiency, convenience, or adherence to original specifications**. For most enthusiasts restoring or maintaining a classic vehicle, the NOS part is the safest and most reliable option.

Details:

Shipped with USPS Priority Mail. NOS MOPAR 4227167 Air Pump Check Valve Fits 81-87 Omni/Charger/Horizon.

part #: 4227167 price

  • $30.00

specifications emissyste:

  • for makes: Mopar
  • for years: 1981-1987
  • mpn: 4227167
  • part type: Valve Pump Check Charger
  • ipn: 4105999
  • manufacturer warranty: No Warranty
  • universal fitment: Direct Replacement
  • vintage part: Yes
  • finish: Anodized Metal
  • country of origin: United States
  • performance part: No

shipping emissyste:

  • class: Expedited
  • carrier: USPS
  • cost: $0.00
  • transit: 3-8 Days
  • type: Fixed
  • service: USPS Priority Mail

payments emissyste:

  • credit card: Discover
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offer emissyste:

  • options: Ship-to-home
  • availability: In Stock
  • best offers: True
  • quantity: 1
  • sold: 0
  • started: March 2, 2026

seller emissyste:

  • rating: 100.0%
  • # reviews: 3885
  • city: Appleton, Wisconsin

general emissyste:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
  • condition: New other see details

returns emissyste:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days
for makes: mopar, for years: 1981-1987, part type: valve pump check charger, manufacturer warranty: no warranty, universal fitment: direct replacement, vintage part: yes, finish: anodized metal, country of origin: united states, performance part: no,
category: auto parts > car truck parts accessories > exhaust emission systems > exhaust emission parts, sku: 20478943474002861,
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  • New other (see details). Offer #1 priced at $30.00 + $0.00 shipping estimate = $30.00* total. Shipped with USPS Priority Mail. NOS MOPAR Air Pump Check Valve Fits 81-87 Omni/Charger/Horizon .FREE SHIPPING

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