MOTORAD SX-34NM Fuel Tank Gas Cap Storage Air Gm

( Brand: Motorad ), ( Manufacturer Part Number: SX-34NM ), ( Type: Fuel Tank Cap ), ( Placement On Vehicle: Air Fuel Delivery Hardware Fasteners Fittings ), ( Item Width: 3.000 ), ( Item Length: 3.250 ), ( Manufacturer Warranty: 1 Year ), ( Ipn: C209 43-67 ), ( Compatible Year: 1983 1982 1981 1980 1979 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Motorad Fuel Tank Cap )

Review MOTORAD Fuel Tank Cap Nissan Gas Delivery Storage Air Gm fits C209 280ZX 1979–1983

The **Motorad SX-34NM Fuel Tank Cap** is a meticulously crafted, high-performance replacement part designed exclusively for the iconic 1979 through 1983 Nissan 280ZX (Z-car series), including the Z31 models with the L28 engine. Engineered to meet the exacting standards of both original equipment and enthusiast-driven modifications, this fuel tank cap is constructed from durable, corrosion-resistant materials to ensure long-lasting reliability under the demanding conditions of high-performance driving. The cap features a robust, threaded design that guarantees a secure seal, preventing fuel vapors from escaping while maintaining optimal pressure within the fuel system critical for both performance and emissions compliance. Its sleek, aerodynamic shape not only enhances the aesthetic appeal of your 280ZX but also integrates seamlessly with the original fuel tank s contours, ensuring a clean, factory-inspired look. The cap is equipped with an advanced **GM (Gas Management) system**, which includes a precision-engineered venting mechanism that regulates fuel pressure dynamically, reducing vapor lock and improving engine efficiency, especially during spirited driving or high-altitude conditions. Whether you re restoring a classic Z-car to its original glory or pushing the limits of a modified turbocharged or supercharged L28, this fuel tank cap delivers both functionality and heritage authenticity. Built to withstand the rigors of daily driving and track use, it is an essential upgrade for any owner seeking to preserve the integrity of their vehicle s fuel system while elevating its performance and visual appeal.

**Pros and Cons of Buying a Motorad SX-34NM Fuel Tank Cap for a 1979 1983 Nissan 280ZX**

The Motorad SX-34NM fuel tank cap is a well-regarded aftermarket replacement designed to improve fuel efficiency, reduce vapor emissions, and enhance overall performance. Here are the key advantages:

1. **Improved Fuel Efficiency** The SX-34NM is a high-performance fuel cap with a larger venting system, allowing for better fuel vapor management. This can reduce fuel evaporation and improve mileage, particularly in hot climates where fuel tanks heat up quickly.

2. **Enhanced Engine Performance** By minimizing fuel vapor buildup, the cap helps maintain optimal fuel pressure in the tank, leading to smoother engine operation and potentially better throttle response.

3. **Reduced Emissions** The cap is designed to meet or exceed emissions standards by properly venting fuel vapors, which helps prevent excess vapor from entering the engine or atmosphere.

4. **Durability and Fit** Motorad products are known for their quality construction, and the SX-34NM is specifically designed to fit the 1979 1983 Nissan 280ZX (Z-car) fuel tank. It is made from durable materials that resist cracking or warping over time.

5. **Easy Installation** The cap is a direct replacement, meaning it should install without modification to the fuel tank or surrounding components. Most users report a straightforward swap, though some may need to clean the tank s vent hole to ensure a proper seal.

6. **Positive User Feedback** Many owners of classic Z-cars report noticeable improvements in fuel economy and engine behavior after switching to the SX-34NM, particularly in high-temperature conditions.

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1. **Cost** As an aftermarket part, the SX-34NM is more expensive than an OEM replacement cap. For a classic car owner, this may be a minor consideration, but it s still an additional expense beyond basic maintenance.

2. **Potential Overkill for Mild Use** If your 280ZX is primarily driven short distances or in cool climates, the benefits of the SX-34NM may be less noticeable. The cap is most effective in hot weather or high-mileage scenarios.

3. **Installation Challenges** While the cap is designed for easy installation, some users may encounter difficulties if the original vent hole in the fuel tank is clogged or damaged. Cleaning or clearing the hole may be necessary before fitting the new cap.

4. **Limited Availability** As a specialized part, the SX-34NM may not be as widely stocked as generic fuel caps. You may need to order it online or from a performance parts supplier, which could introduce shipping delays.

5. **Mixed Results on Very Old Tanks** If the fuel tank itself is degraded (e.g., cracked or corroded), replacing just the cap won t fully address underlying issues like fuel leaks or vapor loss. In such cases, a full tank replacement may be needed.

6. **Not a Guaranteed Fix for All Issues** While the SX-34NM helps with fuel efficiency and emissions, it won t resolve problems like a failing fuel pump, clogged fuel lines, or engine tuning issues. Expect realistic improvements rather than dramatic transformations.

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The Motorad SX-34NM fuel tank cap is a worthwhile upgrade for owners of the 1979 1983 Nissan 280ZX who want to enhance fuel economy, reduce emissions, and improve engine performance particularly in hot or high-use conditions. Its benefits are most noticeable in scenarios where the original cap struggles with heat or vapor buildup. However, it is not a universal solution and may not justify the cost for those who drive their cars infrequently or in mild climates.

If your primary concern is maintaining the car s originality or if the original cap is still functioning adequately, skipping the upgrade may be reasonable. But for enthusiasts looking to eke out extra performance and efficiency, the SX-34NM is a well-regarded and effective choice.

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- You notice fuel economy dropping in hot weather or after long drives.

- You want to reduce emissions and improve engine responsiveness.

- You re willing to invest in a performance-oriented upgrade for your 280ZX.

- The original cap is old, cracked, or otherwise unreliable.

- Your car is driven mostly for short trips or in cool climates.

- You re on a tight budget and the original cap is still functional.

- You prefer to avoid any modifications that deviate from stock specifications.

For most enthusiasts who prioritize performance and longevity, the SX-34NM is a solid recommendation. Pair it with regular fuel tank maintenance (e.g., cleaning the vent hole) to ensure the best results.

Details:

MotoRad Fuel Tank Cap for 1979 1983 Nissan 280ZX Gas Delivery storage Air gm: Status: In Stock.

part #: sx34nm prices

• $20.51-$25.87

specifications fueltanksysteme:

• for models: C209, 280zx
• for makes: Nissan
• for years: 1979-1983
• brand: Motorad
• mpn: Sx-34nm
• type: Fuel Tank Cap
• placement on vehicle: Air Fuel Delivery Hardware Fasteners Fittings
• item width: 3.000
• item length: 3.250
• manufacturer warranty: 1 Year
• ipn: C209 43-67
• compatible year: 1983 1982 1981 1980 1979
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Motorad Fuel Tank Cap

offer fueltanksysteme:

• availability: In Stock
• options: Ship-to-home
• started: April 5, 2026
• quantity: 10
• sold: 0

shipping fueltanksysteme:

• type: Fixed
• transit: 4-7 Days
• class: Standard, Expedited
• cost: $0.00
• service: Standard, Expedited

returns fueltanksysteme:

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

payments fueltanksysteme:

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

general fueltanksysteme:

• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks
• condition: New

seller fueltanksysteme:

• city: Indianapolis, Indiana
• rating: 99.6%
• # reviews: 641457

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