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SPECTRE SPE-4338 Performance Hex Radiator Cap 089601433806

Spe-4338 Spectre Performance 4338 Hex Style Radiator Cap

( Brand: Spectre ), ( Manufacturer Part Number: SPE-4338 ), ( Part Type: Cap ), ( UPC: 089601433806 ), ( Gtin: 00089601433806 )

Review SPECTRE Performance 4338 Hex Radiator Cap

The Spectre SPE-4338 Performance Radiator Cap is a premium upgrade for your cooling system, designed for high-performance applications and heavy-duty use. This hexagonal radiator cap boasts an impressive 16 psi pressure rating, ensuring effective cooling even under the most demanding conditions.

Crafted from durable, 6061-T6 aluminum alloy, the cap is both robust and lightweight. Its polished finish not only adds a touch of elegance to your engine bay but also enhances heat dissipation. The cap's hexagonal shape not only provides a secure seal but also makes it easier to tighten and loosen with a wrench or your hands.

The cap features a large, easy-to-read pressure gauge, allowing you to monitor your cooling system's pressure at a glance. The gauge's red pointer indicates when the system has reached its ideal operating pressure, ensuring optimal engine performance.

The Spectre SPE-4338 Performance Radiator Cap is a direct replacement for your OEM radiator cap and fits most standard radiators. It is designed to meet or exceed original equipment manufacturer (OEM) specifications, ensuring a reliable and seamless installation.

This high-performance radiator cap is perfect for those seeking to enhance their cooling system's capabilities. Whether you're a weekend warrior, a professional racer, or simply want to ensure your vehicle's engine stays cool and performs at its best, the Spectre SPE-4338 Performance Radiator Cap is an excellent choice. Upgrade your cooling system today with this top-quality, reliable, and durable accessory.

The Spectre SPE-4338 Performance Radiator Cap is a popular choice for overcooling applications due to its high-performance design. Here are some pros and cons to help you make an informed decision:

Pros:

1. High-performance design: The SPE-4338 cap can handle coolant flow rates up to 100 GPM (gallons per minute), making it ideal for high-performance engines and racing applications.

2. Temperature relief valve: The cap includes a built-in temperature relief valve that helps prevent pressure buildup in the cooling system, reducing the risk of damage or failure.

3. Durable construction: The cap is made from heavy-duty materials, including a brass body and stainless steel components, ensuring long-lasting performance and resistance to corrosion.

4. Easy installation: The cap is designed to fit most standard 1-inch radiators and comes with a gasket and mounting hardware for easy installation.

5. Adjustable pressure relief valve: The valve can be adjusted to provide optimal cooling system pressure and prevent boilover.

Cons:

1. Higher price point: The Spectre SPE-4338 Performance Radiator Cap is priced higher than some other radiator caps due to its high-performance features and durable construction.

2. Not suitable for all applications: The cap is designed for high-performance applications and may not be necessary for standard vehicles or everyday driving.

3. Requires regular maintenance: Like all radiator caps, the SPE-4338 cap requires regular maintenance, including checking the pressure relief valve and ensuring the gasket is properly sealed.

Conclusion:

The Spectre SPE-4338 Performance Radiator Cap is a high-quality, durable option for those seeking superior cooling performance and protection for their engine. Its adjustable pressure relief valve, temperature relief valve, and high-flow design make it an ideal choice for high-performance vehicles and racing applications. However, its higher price point and the fact that it may not be necessary for all vehicles are important considerations.

Recommendation:

If you're looking for a radiator cap that offers superior cooling performance and protection for your high-performance engine or racing application, the Spectre SPE-4338 Performance Radiator Cap is an excellent choice. However, if you're looking for a more standard radiator cap for everyday driving, there may be more affordable options available that better suit your needs.

Details:

New, removed from package.

part #: spe4338 prices

  • $12.89-$21.74

specifications thermoditto:

  • brand: Spectre
  • mpn: Spe-4338
  • part type: Cap
  • upc: 089601433806
  • gtin: 00089601433806

payments thermoditto:

  • wallet: Apple-pay
  • credit card: Visa
  • other

returns thermoditto:

  • policy: No Returns

general thermoditto:

  • Heating, Cooling Air > Thermostats > Programmable Thermostats
  • condition: Open box

seller thermoditto:

  • # reviews: 450
  • city: Penngrove, California
  • rating: 100.0%

shipping thermoditto:

  • class: Standard
  • carrier: USPS
  • cost: $0.00
  • type: Fixed
  • transit: 5-12 Days
  • service: USPS Ground Advantage

offer thermoditto:

  • availability: In Stock
  • quantity: 1
  • started: August 22, 2025
  • options: Ship-to-home
  • sold: 0
part type: cap, gtin: 00089601433806,
category: home & garden > heating, cooling air > thermostats > programmable thermostats, sku: 4899590138262751,
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5 offers $12.89–$21.74 USD
  • Offer #1: $21.74 price + $0.00 shipping estimate = $21.74* total. Cap Type: Spring Loaded Twist. Designed to perform as good as they look using high quality materials Spectre's radiator cap is engineered for optimum fit and function.FREE SHIPPING
  • Offer #2: $12.89 price + $17.99 shipping estimate = $30.88* total. Cover Finish: Plated. Quantity: Each.+$17.99 shipping
  • Offer #3: $20.99 price + $13.99 shipping estimate = $34.98* total. This cap has been pressure rated for 14-18 pounds Spectre s triple chrome plated steel Hex-Style Radiator Cap fits the majority of radiators requiring a 14-18 pound cap.+$13.99 shipping
  • Offer #4: $29.67 price + $0.00 shipping estimate = $29.67* total. With Trusted Carriers. Available to Help.FREE SHIPPING
  • Offer #5: $34.99 price + $0.00 shipping estimate = $34.99* total.FREE SHIPPING

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