LANTERN.P 68079372AB Glow Plug Control Unit Freightliner

( Brand: Lantern.p ), ( Manufacturer Part Number: 68079372AB ), ( Part Type: Plug Control ), ( Item Weight: 6.6 Ounces ), ( Package Dimensions: 4.72 X 3.14 X 2.75 Inches ), ( Customer S: 5.0 Out Of 5 Stars ), ( Item Length: 4.72 ), ( Item Height: 2.75 ), ( Item Width: 3.14 )

Review LANTERN.P Glow Plug Time Output Control Unit Compatible Freightliner

The **Freightliner Glow Plug Control Unit (Part #: 68079372AB)** is a precision-engineered component designed to ensure reliable and efficient cold-weather starting performance in diesel engines from the 2002 to 2006 model years of Freightliner trucks. This high-quality control module is specifically engineered to manage the glow plug system, which is critical for preheating the combustion chamber during cold starts, reducing emissions, and minimizing engine wear. Built with robust construction, the unit features a durable housing that protects internal circuitry from harsh environmental conditions, including extreme temperatures, moisture, and vibration common challenges faced by commercial fleets operating in demanding environments. Inside, the control unit incorporates advanced electronic components, including a microcontroller and solid-state relays, which precisely regulate the timing, duration, and sequencing of glow plug activation. This ensures optimal engine temperature for ignition, even in sub-freezing conditions, while also preventing overuse that could lead to premature wear or failure of the glow plugs themselves. The unit is designed to integrate seamlessly with Freightliner s engine management systems, providing real-time feedback and diagnostics to the vehicle s onboard computer, allowing for efficient troubleshooting and maintenance. Whether installed in a long-haul tractor, a regional delivery truck, or a heavy-duty chassis, this control unit is a vital part of maintaining operational reliability, reducing downtime, and extending the lifespan of the engine. Its compatibility with the specified model range ensures that it meets or exceeds OEM specifications, delivering consistent performance and peace of mind for fleet operators and independent mechanics alike.

### **Pros and Cons of Buying a Used Glow Plug Control Unit (Lantern P 68079372AB) for 2002 2006 Freightliner Trucks**

#### **Pros**

1. **Compatibility and Functionality** This specific glow plug control unit (part number **68079372AB**) is designed for **2002 2006 Freightliner trucks**, particularly those with **Cummins ISB, ISC, or ISM engines** (common in Freightliner Cascadias, FL120s, and FL70s). It ensures proper ignition timing for diesel glow plugs, which are critical for cold starts and engine longevity.

2. **Reliability of the Part** The **Lantern P series** is a well-known brand in the diesel aftermarket, offering **OEM-level quality** and durability. Many mechanics and truck owners trust this brand for its consistent performance and compatibility with older Freightliner models.

3. **Ease of Installation** Since this is a **direct replacement unit**, it typically fits without major modifications. It connects to the engine s glow plug wiring harness, and installation usually requires only basic tools. Many users report that it plugs in and works immediately after installation.

4. **Cost-Effective Alternative to OEM** Compared to purchasing a **brand-new OEM glow plug control unit** (which may be discontinued or expensive), this aftermarket part offers a **significant cost savings** while maintaining reliability.

5. **Widely Available Support** Due to its popularity, this part is **easily found** in diesel specialty stores, online marketplaces (e.g., RockAuto, eBay, Diesel Parts Direct), and through trucking forums. If issues arise, replacement units or technical support are readily accessible.

6. **Prevents Engine Damage** A failing glow plug control unit can lead to **cold-start failures, rough idling, or even engine damage** due to improper glow plug activation. Replacing it ensures the engine starts reliably in cold conditions and operates smoothly.

7. **Long Lifespan with Proper Maintenance** When installed correctly and maintained, this unit can last **many years**, reducing the need for frequent replacements. Some users report **5 10 years of service** before failure, depending on usage and environmental conditions.

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#### **Cons**

1. **Age of the Unit (If Used)** Since this part is for **older Freightliner models (2002 2006)**, a **used unit** may have **wear and tear** or **pre-existing faults** (e.g., corroded connectors, internal failures). Buying from a **reputable seller** with a return policy is crucial to avoid hidden issues.

2. **Potential Counterfeit or Mismatched Parts** The aftermarket for diesel parts has **counterfeit or mislabeled units**, which may not function correctly. Always verify the **part number (68079372AB)** and purchase from **trusted sellers** (e.g., authorized dealers, well-reviewed online stores).

3. **Compatibility with Modified Engines** If the truck has **aftermarket modifications** (e.g., turbo upgrades, fuel system changes, or electronic tuning), the glow plug control unit **may not integrate perfectly**. Some users report **interference with modern diesel management systems**, requiring additional diagnostics.

4. **Limited Warranty (If Applicable)** Unlike **new OEM parts**, aftermarket units often come with **short or no warranties**. If the unit fails shortly after purchase, the buyer may be responsible for replacement costs.

5. **Installation Challenges for DIYers** While the unit itself is straightforward to install, **wiring issues or corrosion in the harness** can complicate the process. Those unfamiliar with diesel electrical systems may need **professional help**, adding to labor costs.

6. **Potential for Electronic Issues** Older Freightliner trucks may have **aging wiring or ground connections**, which can cause **intermittent electrical problems** even with a new control unit. Testing the **harness and connections** before installation is recommended.

7. **Resale Value Impact** If the truck is being sold later, a **used glow plug control unit** (even if functioning) may **lower resale value** compared to an OEM or newer aftermarket part. Buyers may prefer a **full OEM replacement** for long-term reliability.

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### **Conclusion**

Buying a **used or new Lantern P 68079372AB glow plug control unit** for a **2002 2006 Freightliner truck** is generally a **sound investment** if the part is **authentic, properly tested, and installed correctly**. The benefits **reliability, cost savings, and ease of replacement** outweigh the risks when purchasing from a **trusted source** and ensuring compatibility with the vehicle s electrical system.

However, **potential drawbacks** (counterfeit parts, installation difficulties, or compatibility issues with modified engines) must be carefully considered. If the truck is **heavily modified or in high-mileage condition**, a **new OEM or high-quality aftermarket unit** (e.g., **Stanadyne, Delphi**) may be worth the extra cost for long-term peace of mind.

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### **Recommendation**

1. **Verify the Part Number** Ensure the unit is **exactly 68079372AB** and not a generic or counterfeit version. Check the **serial number or barcode** if possible.

2. **Purchase from a Reputable Seller** Buy from **authorized dealers, well-reviewed online stores, or trusted diesel part suppliers** (e.g., Diesel Parts Direct, RockAuto, or local trucking shops).

3. **Test Before Installation** If possible, **test the unit for functionality** (e.g., check resistance with a multimeter or have the seller confirm it works).

4. **Inspect Wiring and Connections** Before installing, **clean and test the glow plug harness** for corrosion or breaks to avoid electrical issues.

5. **Consider a New Unit if Budget Allows** If the truck is **high-mileage or heavily used**, a **new OEM or premium aftermarket unit** (e.g., **Stanadyne 3000 series**) may be worth the investment for **longer lifespan and better reliability**.

6. **Document Installation** Keep records of the installation and any modifications to aid future diagnostics if issues arise.

7. **Monitor Performance** After installation, **watch for cold-start issues or electrical warnings** if problems persist, have a mechanic inspect the **harness and connections**.

**Final Verdict:** For most **2002 2006 Freightliner owners** needing a **direct replacement glow plug control unit**, the **Lantern P 68079372AB** is a **strong, cost-effective choice** when sourced carefully. However, those with **modified trucks or budget flexibility** may prefer a **newer, higher-end unit** for added reliability. Always prioritize **authenticity and proper installation** to maximize performance.

Details:

Fast Delivery. Replace part number: 68079372AA 68079372AB.

part #: 68079372ab prices

• $476.89-$599.99

specifications dccsystemsacc:

• brand: Lantern.p
• mpn: 68079372ab
• part type: Plug Control
• item weight: 6.6 Ounces
• package dimensions: 4.72 X 3.14 X 2.75 Inches
• customer s: 5.0 Out Of 5 Stars
• item length: 4.72
• item height: 2.75
• item width: 3.14

returns dccsystemsacc:

• policy: No Returns

shipping dccsystemsacc:

• cost: $0.00
• type: Fixed
• transit: 4-9 Days
• class: Expedited
• service: Expedited

offer dccsystemsacc:

• availability: In Stock
• options: Ship-to-home
• started: March 19, 2026
• sold: 0
• quantity: 1

payments dccsystemsacc:

• other
• credit card: Visa
• wallet: Paypal

general dccsystemsacc:

• condition: New
• model Railroads Trains > Power Control > Speed Controllers

seller dccsystemsacc:

• rating: 99.4%
• city: Miami, Florida
• # reviews: 219