1. Engine Cooling Components Deals
  2. sku: 20988260227792722
  3. MAXPEEDINGRODS 5TGK73

MAXPEEDINGRODS 5TGK73 Expansion Recovery Coolant Tank 78-87

fits model: Century, Regal. make: Buick.

5tgk73 Maxpeedingrods Expansion Recovery Coolant Overflow Tank Aluminum For Buick Century Regal 78-87

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 5TGK73 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Color: Silver ), ( Features: Easy Installation ), ( Finish: Polished ), ( Manufacturer Warranty: 2 Year ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part., California Prop 65 Warning., This Is Aftermarket Replcement Part ), ( Oe/oem Part Number: Overflow Tank, Coolant Radiator Overflow Expansion Recovery Tank, Coolant Expansion Tank, Radiator Overflow Tank, Aluminum Coolant Expansion Tank, Universal Radiator Overflow Tank, Universal Coolant Recovery Tank, Coolant Reservoir Universal, Coolant Expansion Tank Universal, Coolant Expansion Tank ), ( Style: Overflow ), ( Type: Overflow Tank ), ( Universal Fitment: Direct Replacement )

Review MAXPEEDINGRODS Expansion Recovery Coolant Overflow Tank Aluminum Buick 78-87 fits CENTURY REGAL

The **Maxpeedingrods 5T-GK73 Expansion Recovery Coolant Tank** is a meticulously engineered aftermarket upgrade designed specifically for enthusiasts of the classic Buick Century and Regal models from 1978 to 1987, particularly those equipped with the legendary **5.0L (305ci) V8 engine** a powerplant renowned for its durability and raw performance potential. This high-quality expansion and recovery coolant tank serves as a critical component in maintaining optimal cooling system efficiency, ensuring peak performance and longevity under demanding driving conditions. Crafted from durable, corrosion-resistant materials, the 5T-GK73 tank is built to withstand the rigors of high-performance applications while seamlessly integrating into the stock cooling system architecture. Its precise fitment eliminates the need for extensive modifications, allowing for a straightforward installation that preserves the vehicle s original aesthetic while significantly enhancing its cooling capabilities. The tank s expanded capacity provides superior thermal management by accommodating additional coolant volume, reducing the risk of overheating during spirited driving, extended highway runs, or heavy-duty towing scenarios. This upgrade is particularly beneficial for those who have modified their engines with performance parts, such as high-flow water pumps, larger radiators, or forced induction systems, as it helps mitigate the increased heat loads generated by these enhancements. Additionally, the tank s design incorporates a smooth, efficient recovery system that minimizes air entrapment, ensuring consistent coolant flow and preventing the formation of vapor locks common issues in high-performance applications. Whether you're a weekend warrior pushing your classic Buick to its limits or a restomodder fine-tuning a project car for track use, the Maxpeedingrods 5T-GK73 Expansion Recovery Coolant Tank is an indispensable addition that bridges the gap between stock cooling limitations and the demands of modern performance driving. With its blend of precision engineering, compatibility, and reliability, this component is an essential upgrade for anyone serious about preserving their engine s health while unlocking its full potential.

**Pros and Cons of buying a Maxpeedingrods 5TKG73 Expansion Recovery Coolant Tank for Buick Century/Regal (1978 1987)**

### **Pros**

1. **Improved Cooling System Efficiency** The expansion recovery tank helps maintain proper coolant pressure, reducing the risk of coolant boiling over, especially during high-performance driving or hot climates. This can prevent overheating and engine damage.

2. **Prevents Coolant Loss** The system captures and recirculates coolant that would otherwise escape through the pressure cap, reducing the need for frequent top-offs and extending coolant life.

3. **Compatibility with Stock Systems** Designed specifically for the 1978 1987 Buick Century/Regal, this aftermarket part integrates seamlessly with the factory cooling setup, requiring minimal modifications.

4. **Durable Construction** Made from high-quality materials, the tank is built to withstand engine heat and pressure, offering a long-term solution compared to DIY hacks or cheap alternatives.

5. **Easy Installation** The kit typically includes all necessary components (hoses, clamps, and mounting hardware) and is designed for straightforward installation, even for those with basic mechanical skills.

6. **Cost-Effective Upgrade** Compared to a full cooling system overhaul, this expansion tank is a relatively inexpensive way to enhance reliability without sacrificing performance.

7. **Reduces Coolant Degradation** By minimizing air intake and maintaining proper pressure, the system helps slow down coolant breakdown, extending the interval between flushes.

8. **Works with Stock Coolant** No need for specialized or expensive coolant; standard ethylene glycol or extended-life coolant can be used.

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### **Cons**

1. **Limited Performance Gains for Stock Engines** If you re not pushing the engine beyond its original specifications (e.g., forced induction, high RPM, or extreme heat), the benefits may be marginal. The expansion tank is more beneficial for modified or high-stress applications.

2. **Potential Leak Risks** Like any aftermarket part, improper installation or low-quality hoses/clamps could lead to leaks. Ensuring a tight seal and using the correct fittings is critical.

3. **Not a Cure for Major Cooling Issues** If your cooling system has underlying problems (e.g., a failing water pump, clogged radiator, or bad thermostat), the expansion tank alone won t fix them. It s a supplementary solution, not a standalone repair.

4. **May Require Additional Modifications** Some users report needing to adjust the radiator cap pressure or bleed the system thoroughly after installation to avoid air pockets.

5. **Compatibility with Aftermarket Cooling** If you plan to add a larger radiator, electric fan, or other cooling upgrades, you may need to reassess the expansion tank s role in the system.

6. **Minimal Aesthetic Impact** The tank itself is functional but not visually appealing, and installation may require routing hoses through the engine bay, which could be messy.

7. **Dependence on Proper Maintenance** Like any cooling system, the expansion tank requires periodic checks for leaks, coolant level, and system pressure. Neglecting maintenance could negate its benefits.

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### **Conclusion**

The Maxpeedingrods 5TKG73 expansion recovery coolant tank is a **practical and cost-effective upgrade** for Buick Century/Regal owners who want to enhance their cooling system s reliability, especially under demanding conditions. It s particularly useful for those who modify their engines, drive in hot climates, or experience frequent coolant loss. However, it s not a universal fix it works best when paired with a well-maintained cooling system and isn t a replacement for neglected or failing components.

For **stock or lightly modified engines** running under normal conditions, the benefits may be modest, and the expense might not be justified. But for **performance-oriented drivers or those prone to coolant-related issues**, the tank provides a simple, effective solution to prevent overheating and extend the life of the cooling system.

### **Recommendation**

**Buy the Maxpeedingrods 5TKG73 expansion tank if:**

- You notice frequent coolant loss or boiling issues.

- You modify your engine (turbocharging, forced induction, or high-RPM use).

- You live in a hot climate or push your vehicle hard.

- You want a low-cost, easy-to-install upgrade to improve cooling system longevity.

**Avoid it if:**

- Your engine runs reliably without overheating under normal conditions.

- You re on a tight budget and prioritize other cooling system upgrades (e.g., a high-flow radiator or upgraded water pump).

- You re not comfortable with basic installation or maintenance tasks.

**Final Verdict:** A **solid choice for reliability-focused Buick owners**, especially those who value preventative maintenance. Install it with care, monitor coolant levels, and pair it with good practices (e.g., regular flushes, leak checks) to maximize its effectiveness.

Details:

Made with High Quality Aluminum for Enhanced Strength and Durability, Replaces Factory Plastic Tank a Heavier Duty model, 5/16 Hose Barb Fittings, Reuses Hoses, 100 Thick Walls, Built in Sight Gauge on Side to Inspect Fluid Level. Fast Shipping. 7th, After Apr. Guaranteed Fitment Always the correct part.

Package Included. . 1 x Coolant Recovery Overflow Tank, 1x Hardware as Shown in the Picture Above. Condition: 100% New, Colour: Silver, Material: Aluminum.

specifications ocoosys:

  • for models: Century, Regal
  • for makes: Buick
  • brand: Maxpeedingrods
  • mpn: 5tgk73
  • california prop 65 warning: California Prop 65 Warning
  • color: Silver
  • features: Easy Installation
  • finish: Polished
  • manufacturer warranty: 2 Year
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part., California Prop 65 Warning., This Is Aftermarket Replcement Part
  • oe/oem part number: Overflow Tank, Coolant Radiator Overflow Expansion Recovery Tank, Coolant Expansion Tank, Radiator Overflow Tank, Aluminum Coolant Expansion Tank, Universal Radiator Overflow Tank, Universal Coolant Recovery Tank, Coolant Reservoir Universal, Coolant Expansion Tank Universal, Coolant Expansion Tank
  • style: Overflow
  • type: Overflow Tank
  • universal fitment: Direct Replacement

seller ocoosys:

  • rating: 99.5%
  • city: Houston, Texas
  • # reviews: 8888

shipping ocoosys:

  • class: Standard
  • carrier: FedEx
  • type: Fixed
  • cost: $0.00
  • service: FedEx Ground / FedEx Home Delivery
  • transit: 3-5 Days

offer ocoosys:

  • sold: 0
  • quantity: 14
  • availability: In Stock
  • best offers: True
  • options: Ship-to-home
  • started: April 12, 2026

general ocoosys:

  • Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components
  • condition: New

payments ocoosys:

  • wallet: Google-pay
  • other
  • credit card: Diners-club

returns ocoosys:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller
for models: century, regal, for makes: buick, california prop 65 warning: california prop 65 warning, features: easy installation, finish: polished, manufacturer warranty: 2 year, note: no instruction included, notice: this is aftermarket replcement part., california prop 65 warning., this is aftermarket replcement part, oe/oem part number: overflow tank, coolant radiator overflow expansion recovery tank, coolant expansion tank, radiator overflow tank, aluminum coolant expansion tank, universal radiator overflow tank, universal coolant recovery tank, coolant reservoir universal, coolant expansion tank universal, coolant expansion tank, style: overflow, type: overflow tank, universal fitment: direct replacement,
category: auto parts > car truck parts accessories > engine cooling components, color: silver, sku: 20988260227792722,
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