Holley 135-4 Vacuum Secondary Diaphragm
genuine image
Holley 135-4 Vacuum Secondary Diaphragm
Holley has been the undisputed leader in fuel systems for over 100 years.
Holley 135-4 Vacuum Secondary Diaphragm
Articolo #: 281500

Holley 135-4 Vacuum Secondary Diaphragm

Articolo #: 281500

€ 28

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from Stati Uniti

In magazzino
Stati Uniti Importato dal negozio USA
Ordina subito e indossalo Mercoledì, Luglio 22
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

I nostri principali partner logistici
  • fedex
  • dhl
Holley has been the undisputed leader in fuel systems for over 100 years.
Garanzia U-Care:
Nessuna
Seleziona un piano
buy now pay later

Buy Now Pay Later

fast shipping

Consegna
veloce

free return

Reso
gratuito*

Imballaggio sicuro

Imballaggio sicuro

Prodotti originali al 100%

Prodotti originali al 100%

pci-dss

Conformità PCI DSS

iso certified

Certificazione ISO 27001

paypal payment
visa payment
mastercard payment
klarna payment
Note: Step Down Voltage Transformer required for using electronics products of Stati Uniti store (110-120). Recommended power converters Acquista ora.

Cosa salta all'occhio

Precise Performance
Engineered for optimal air-fuel mixture control, enhancing engine response and efficiency across varied driving conditions.
Diseño Duradero
Constructed with high-quality materials to withstand extreme conditions, ensuring longevity and reliability for high-performance vehicles.
Installazione semplice
Designed for straightforward installation, allowing enthusiasts to quickly upgrade their carburetor without extensive mechanical knowledge.

Dettagli del prodotto

Shop for Holley Vacuum Secondary Diaphragm online at Ubuy Italia. Find the best deals and discounts for this high-quality performance auto part.
  • Made from high-performance rubber material
  • Replaces worn-out diaphragms
  • Resistente e di lunga durata
  • Fit type: Vehicle Specific
  • Holley has been the leader in fuel systems for over 100 years
  • Offers performance fuel pumps, intake manifolds & engine dress–up products for street performance, race, and marine applications
Peso del artículo140 grammi

A chi è consigliato?

Suitable For
  • Entusiastas del rendimiento

    Ideal for car enthusiasts looking to improve engine performance with quicker throttle response and better air-fuel mixture.

  • Classic Car Restorers

    Perfect for restoring classic vehicles that utilize Holley carburetors needing replacement diaphragms without compromising authenticity.

  • DIY Mecánica

    Great for DIYers seeking to perform their own carburetor maintenance and upgrades, ensuring reliable vehicle performance.

Not Suitable For
  • Modern Fuel Injected Cars

    Not suitable for modern fuel-injected vehicles where electronic systems and sensors are required for optimal performance.

  • Low Budget Users

    Might not fit budget-conscious users who require economical solutions rather than top-tier performance carburetor components.

  • Inexperienced Beginners

    Less ideal for those unfamiliar with carburetor mechanics, as incorrect installation could lead to engine issues.

DESCRIZIONE DEL PRODOTTO

Holley 135-4 Vacuum Secondary Diaphragm

Hai qualche domanda? chatta con noi

Domande e risposte dei clienti

  • domanda: What is the Holley 135-4 Vacuum Secondary Diaphragm used for?

    Rispondere: The Holley 135-4 Vacuum Secondary Diaphragm is designed to optimize the performance of your carburetor by controlling the operation of the secondary throttle plates. This diaphragm provides the necessary response based on engine vacuum, enhancing throttle response and overall efficiency. It is particularly useful in high-performance applications where precise fuel delivery is crucial for improved acceleration and power.
  • domanda: How do I install the Holley 135-4 Vacuum Secondary Diaphragm?

    Rispondere: Installing the Holley 135-4 Vacuum Secondary Diaphragm involves removing the carburetor top and accessing the secondary throttle mechanism. Once you have the carburetor disassembled, replace the old diaphragm with the new one, ensuring that it is seated correctly. Reassemble the carburetor and adjust any necessary settings. This installation is critical for ensuring the diaphragm functions properly to enhance engine performance.
  • domanda: Is the Holley 135-4 compatible with all Holley carburetors?

    Rispondere: The Holley 135-4 Vacuum Secondary Diaphragm is specifically designed for use with Holley carburetors equipped with vacuum secondary systems. While it is compatible with various models, it is essential to verify that your carburetor model supports this part. Checking the specifications ensures you achieve optimal performance and compatibility with your vehicle's engine setup.
  • domanda: What symptoms indicate a failing vacuum secondary diaphragm?

    Rispondere: Signs of a failing vacuum secondary diaphragm include poor acceleration, inconsistent engine performance, and difficulty maintaining a steady speed. You might also notice a rough idle or an increase in backfiring. These symptoms indicate that the diaphragm may not be opening or closing correctly, affecting the fuel-air mixture entering the engine and ultimately compromising performance.
  • domanda: Can I use the Holley 135-4 in a performance build?

    Rispondere: Absolutely! The Holley 135-4 Vacuum Secondary Diaphragm is an excellent choice for performance builds. By improving the efficiency of your carburetor's fuel delivery, it can significantly enhance engine output and throttle response. Whether you're working on a street rod, muscle car, or a high-performance racing engine, this diaphragm can help optimize your setup and maximize power.
  • domanda: What materials is the Holley 135-4 made from?

    Rispondere: The Holley 135-4 Vacuum Secondary Diaphragm is constructed from durable materials designed to withstand fluctuating temperatures and pressures typical in automotive applications. Its robust design ensures longevity and reliable performance, making it effective even in demanding conditions. This durability is crucial for maintaining consistent engine performance over extended periods, especially in high-stress scenarios.
  • domanda: How can I troubleshoot issues with my vacuum secondary diaphragm?

    Rispondere: Troubleshooting your vacuum secondary diaphragm involves checking for visible damage, testing for leaks, and ensuring the proper alignment within the carburetor. Begin by inspecting the diaphragm for cracks or tears. If you suspect leaks, you can perform a vacuum test to determine if the diaphragm is functioning correctly. Identifying these issues early can prevent more significant performance problems and enhance your vehicle’s overall efficiency.
  • domanda: What is the difference between vacuum and mechanical secondaries?

    Rispondere: Vacuum secondaries, like the Holley 135-4, use engine vacuum to control the opening of secondary throttle plates, allowing for smoother acceleration based on engine needs. In contrast, mechanical secondaries open based on throttle position, providing a more immediate response but potentially leading to less manageable power delivery. Choosing between the two depends on your driving style and the specific performance demands of your vehicle.
  • domanda: What performance gains can I expect from replacing my diaphragm?

    Rispondere: Replacing your diaphragm with the Holley 135-4 can lead to improved throttle response, better fuel economy, and enhanced acceleration. Users often report smoother transitions during the acceleration process and a noticeable increase in overall power output. These gains are especially beneficial in high-performance builds where efficiency and responsiveness are crucial for achieving optimal driving experiences.
  • domanda: Where can I buy Holley 135-4 Vacuum Secondary Diaphragm in Italy?

    Rispondere: You can purchase the Holley 135-4 Vacuum Secondary Diaphragm at Ubuy in Italy. Ubuy offers a convenient shopping experience with a selection of automotive parts, making it easy to find what you need for your vehicle's performance enhancements.

Holley Secondary Diaphragms Editorial Review

Customers have had mixed experiences with the Holley Vacuum Secondary Diaphragm. Some customers found that it fit their specific Holley carburetor models, while others had to consult Holley directly for the correct diaphragm. One customer expressed frustration with vacuum secondary systems, citing them as unreliable. Overall, the reception of this product is fairly average.

Recensioni e valutazioni del cliente

5.0
1 valutazioni dei clienti
  • 5 stella
    100%
  • 4 stella
    0%
  • 3 stella
    0%
  • 2 stella
    0%
  • 1 stella
    0%

Recensisci questo prodotto

Condividi le tue impressioni con altri clienti

Professionisti

  • Fits some Holley carburetor models
  • Consulting Holley directly can provide accurate information

Contro

  • May not fit all Holley carburetor models

Platform Trust & Buyer Confidence

trustpilot logo
4.3/5 9,000 + reviews
Read reviews
MT
Mohd
Verified buyer

“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer

“Accurate delivery timing given”

16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer

“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
LM
Leila
Verified buyer

“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
Pagamento sicuro Global Delivery Easy Returns Genuine Products

Cronologia dei prezzi del prodotto

Informazioni importanti

  • Limitazioni: per i prodotti spediti a livello internazionale, si prega di notare che ogni garanzia del produttore potrebbe non essere valida, le opzioni di assistenza del produttore potrebbero non essere disponibili, i manuali del prodotto, le istruzioni e gli avvisi di sicurezza potrebbero non essere nella lingua del paese di destinazione. I prodotti (e i materiali di accompagnamento) potrebbero non essere progettati in conformità con gli standard, le specifiche e i requisiti di etichettatura del paese di destinazione e i prodotti potrebbero non essere conformi alla tensione di rete del paese di destinazione e ad altri standard elettrici (richiedendo l'uso di un adattatore o di un trasformatore, se necessario). Il destinatario è responsabile di assicurare che il prodotto possa essere legalmente importato nel paese di destinazione. Quando si ordina da Ubuy o dai suoi affiliati, il destinatario è l'importatore registrato ed è tenuto a rispettare tutte le leggi e i regolamenti del paese di destinazione.
  • Non tutti i prodotti elencati su Ubuy sono in vendita, poiché Ubuy è un motore di ricerca globale. I prodotti sono soggetti a regolamenti di esportazione/commercio.

€ 28

Ordina subito e indossalo Mercoledì, Luglio 22

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

I nostri principali partner logistici
  • fedex
  • dhl
Consegna transfrontaliera più veloce

Caratteristiche e benefici

  • Holley has been leading fuel systems for 100 years
  • Their carburetors have powered every Monster Energy NASCAR Cup team
  • Their EFI products are now dominating the performance world
  • They have products for street performance, race, and marine applications
  • They provide a single solution or can be partnered with other Holley companies
  • This diaphragm carb is durable and long-lasting

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.