MOTORAD 45VTVNNB Crankcase Breather Cap Tempest

( Brand: Motorad ), ( Manufacturer Part Number: 45VTVNNB ), ( Part Type: Breather Cap ), ( Engine: 3.2l 4 Cyl, 3.5l V8, 3.5l 6 Cyl, 5.3l V8, 6.4l V8 ), ( Compatible Make/model: Pontiac Tempest ), ( Compatible Years: 1963 1961 1962 1964 1965 1966 1967 63 61 62 64 65 66 67 ), ( Fitment Info: Engine Crankcase Breather Cap Except Closed Pcv System ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review MOTORAD Crankcase Breather Cap Pontiac Tempest fits 1961–1967

The **Motorad 45VT-VTN-NB Crankcase Breather Cap** is a meticulously engineered, high-performance replacement designed specifically for the classic Pontiac Tempest models produced between 1961 and 1967, particularly those equipped with the legendary **45VT, VTN, or VTN-NB V8 engines**. This breather cap is not merely a functional component but a precision-crafted solution that ensures optimal engine breathing, reduces oil consumption, and minimizes crankcase pressure buildup critical factors for maintaining peak performance and longevity in these powerful, high-revving engines. Crafted from durable, high-grade materials, the Motorad breather cap features a robust, oil-resistant design that resists degradation from heat, vibration, and the corrosive effects of gasoline and engine oils, making it ideal for both street-driven and enthusiast-restored Tempests. Its unique **venturi-style valve mechanism** allows for smooth, unrestricted airflow while effectively trapping oil vapors and preventing blow-by from escaping into the atmosphere, thereby reducing emissions and protecting the engine s internal components from premature wear. The cap s **threaded, secure fit** ensures a tight seal, preventing leaks that could compromise engine efficiency or lead to costly internal damage. Whether you re preserving the original performance of a showroom-fresh Tempest or restoring a vintage muscle car to its former glory, this breather cap is an essential upgrade that bridges modern reliability with classic engine integrity, offering enthusiasts the confidence that their engine is operating at its best just as it did in the golden era of American muscle.

### Pros and Cons of Buying a Motorad 45VT-VTNNB Crankcase Breather Cap for a 1961-1967 Pontiac Tempest

1. **Compatibility and Fit:** This breather cap is specifically designed for the 1961-1967 Pontiac Tempest, ensuring a proper fit without modifications. It is tailored to the engine s crankcase ventilation system, which helps maintain optimal oil pressure and prevent oil leaks.

2. **Prevents Oil Contamination:** The crankcase breather cap filters out contaminants such as dust, dirt, and moisture from entering the engine s crankcase. This helps keep the oil cleaner for longer, reducing wear on internal engine components.

3. **Reduces Oil Consumption:** By maintaining proper crankcase pressure, the breather cap helps minimize oil consumption, which is particularly beneficial in older engines prone to oil leaks or burning.

4. **Quieter Operation:** A properly functioning breather cap reduces the likelihood of excessive crankcase pressure, which can cause oil leaks or a hissing noise. This cap is designed to regulate airflow smoothly, contributing to quieter engine operation.

5. **Easy Installation:** The Motorad breather cap is typically designed for straightforward installation, requiring minimal tools and effort. It often comes with clear instructions, making it accessible for DIY enthusiasts.

6. **Durability:** Motorad products are known for their quality and durability. This breather cap is likely made from robust materials that can withstand the rigors of use over time, reducing the need for frequent replacements.

7. **Compatibility with Modern Additives:** The cap is designed to work with modern engine additives and oil treatments, ensuring that any additional protection or performance enhancements you add to your engine will function effectively.

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1. **Cost:** While the breather cap itself is relatively inexpensive, if you need to purchase additional components like a new breather hose or gasket to ensure a proper seal, the overall cost may increase slightly. However, this is usually a one-time expense.

2. **Potential for Counterfeit Products:** As with any aftermarket part, there is a risk of purchasing a counterfeit or low-quality replica. Ensure you buy from a reputable seller to avoid receiving a substandard product that could fail prematurely.

3. **Limited Customization:** This breather cap is designed for a specific application (1961-1967 Pontiac Tempest). If you plan to modify your engine significantly or use it in a different vehicle, this part may not be suitable without further adjustments.

4. **Maintenance Requirements:** While the breather cap itself requires little maintenance, the associated breather hose and filters (if applicable) may need periodic inspection or replacement to ensure continued effectiveness. Neglecting this could lead to reduced performance or failure.

5. **Availability:** Depending on the region or seller, this specific part might not always be in stock. You may need to order it online or from a specialty parts supplier, which could introduce delays.

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The Motorad 45VT-VTNNB crankcase breather cap is a highly specialized and beneficial component for maintaining the health of your 1961-1967 Pontiac Tempest s engine. Its primary advantages such as improved oil cleanliness, reduced oil consumption, and quieter operation make it a worthwhile investment for any owner looking to preserve their engine s longevity and performance. The ease of installation and compatibility with the vehicle s specifications further enhance its appeal.

The potential drawbacks, while minor, are largely mitigable by purchasing from a trusted source and staying attentive to the part s maintenance needs. Given the relatively low cost and significant benefits, the breather cap is a practical upgrade for any Tempest owner.

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If you are experiencing issues such as oil leaks, excessive crankcase pressure, or a dirty oil condition in your 1961-1967 Pontiac Tempest, replacing the stock crankcase breather cap with the Motorad 45VT-VTNNB is a highly recommended step. This upgrade is particularly valuable if you drive your vehicle frequently or in environments where dust, moisture, or debris is prevalent.

- Purchase the part from a reputable seller to avoid counterfeits.

- Inspect the breather hose and gasket for wear or damage during installation and replace them if necessary.

- Consider pairing this upgrade with other maintenance tasks, such as an oil change or filter replacement, to maximize the benefits.

In summary, the Motorad breather cap is a straightforward yet impactful improvement that will contribute to the long-term reliability and performance of your Tempest.

Details:

Motorad Crankcase Breather Cap fits Pontiac Tempest 1961-1967 45VTVNNB: Brand: condition: New Notes: Engine Except Closed PCV System, Features:Stops engine blow by. Type: Standard. Meets all OEM specifications. Universal Or Specific Fit.

Product Specifications Replaceable Filter: No. Detailed Applications Years: Vehicle: Engine: 1965-1967Pontiac Tempest5.3L V8, 1965Pontiac Tempest3.5L 6 Cyl, 1961-1962Pontiac Tempest3.2L 4 V8. Housing Color: Silver. Housing Material: Metal.

High quality construction. Provides proper seal to ensure leak prevention.

part #: 45vtvnnb price

• $21.94

specifications cranshafengin:

• for makes: Pontiac
• for years: 1961-1967
• brand: Motorad
• mpn: 45vtvnnb
• part type: Breather Cap
• engine: 3.2l 4 Cyl, 3.5l V8, 3.5l 6 Cyl, 5.3l V8, 6.4l V8
• compatible make/model: Pontiac Tempest
• compatible years: 1963 1961 1962 1964 1965 1966 1967 63 61 62 64 65 66 67
• fitment info: Engine Crankcase Breather Cap Except Closed Pcv System
• manufacturer warranty: 12 Month Warranty
• attention: Read Full Description To Confirm Fitment
• cs-sku: 400

general cranshafengin:

• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
• condition: New

seller cranshafengin:

• # reviews: 23873
• city: Rockland, Massachusetts
• rating: 99.2%

shipping cranshafengin:

• transit: 3-7 Days
• cost: $0.00
• type: Fixed
• class: Economy
• service: Economy

returns cranshafengin:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

offer cranshafengin:

• started: April 7, 2026
• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home

payments cranshafengin:

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

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