PONTIAC 494817 Trans Am Egr Vacuum Switch

( Manufacturer Part Number: 494817 ), ( Type: Distributor )

Review PONTIAC Trans Am Egr Ported Vacuum Switch fits FIREBIRD PRIX GRAND 1974

Pontiac 494817 EGR Vacuum Switch for 1974 Firebird Trans Am/Prix

The Pontiac 494817 EGR Vacuum Switch is specifically designed for use in 1974 Firebird Trans Am and Prix models. This vital component is an essential part of the engine management system, regulating the operation of the Engine Gas Recirculation (EGR) valve.

This switch is built with high-quality materials to ensure durability and reliability. Its robust construction is capable of withstanding the harsh conditions of an automotive engine bay. The switch features a compact design, fitting perfectly into the existing wiring harness and vacuum system of your 1974 Firebird Trans Am or Prix.

The EGR vacuum switch is engineered to maintain appropriate vacuum pressure for optimal performance of the EGR system. Proper EGR valve operation is crucial as it helps reduce exhaust emissions by recirculating a portion of exhaust gases back into the engine intake for a more complete combustion cycle. This, in turn, leads to improved engine efficiency and lower emissions.

Replacing your worn-out or malfunctioning EGR vacuum switch with this Pontiac original equipment (OE) part guarantees a reliable and hassle-free performance. OEM parts like this Pontiac 494817 EGR Vacuum Switch are engineered to meet the exact specifications as the original part, ensuring that your vehicle will function as intended.

Installation of this part is relatively straightforward for the moderately skilled DIY mechanic or professional technician. It simply plugs into the existing wiring harness, allowing for a quick and easy installation process. No special tools are required for the swap, making this an accessible upgrade for those looking to maintain or restore their cherished 1974 Firebird Trans Am or Prix.

Installing this new EGR vacuum switch will help you avoid the inconvenience of engine misfires, rough idling, or reduced power associated with a faulty switch. Furthermore, improving your vehicle's EGR system with a new switch can positively contribute to its overall performance and longevity. This Pontiac 494817 EGR Vacuum Switch is an affordable yet crucial investment in the continued operation and enjoyment of your 1974 Firebird Trans Am or Prix.

Buying a used Pontiac Firebird Trans Am Prix EGR Vacuum Switch (494817) from the year 1974 comes with its unique set of advantages and disadvantages. Here's a breakdown of each:

1. Cost-Effective: You can often find used EGR vacuum switches at a lower cost compared to purchasing a new one from the dealership.

2. Availability: You may find a used EGR vacuum switch more readily available than a new one, especially from auto parts retailers or private sellers.

3. Working Condition: A used switch in good condition may perform as well as a new one, especially if it has been tested and certified as functional.

1. Uncertainty: When buying a used EGR vacuum switch, you cannot be entirely sure of its condition. It may have been used and worn down, which could lead to potential issues down the line.

2. Wear and Tear: A used EGR vacuum switch could show signs of wear and tear, such as cracks or damaged connections, which could negatively impact its performance and necessitate further repairs or replacement.

3. Compatibility: While the part number (494817) should be the same, you must ensure that the used switch is compatible with your specific vehicle and engine configuration.

4. Warranty: Used parts, by their very nature, do not come with any manufacturer's warranty. This could leave you financially responsible for any issues that may arise after installation.

Buying a used EGR vacuum switch (494817) for a 1974 Pontiac Firebird Trans Am Prix comes with some risk as its condition is uncertain, and it may not come with a warranty. However, it can potentially save you money as compared to purchasing a new one. It's advisable to thoroughly inspect the used switch before purchase and consider the potential risks and benefits before deciding.

I would recommend buying a certified rebuilt or refurbished EGR vacuum switch if possible, as this option offers some of the advantages of a new part with the potential cost savings of a used one. Ensure to purchase from a reputable dealer or seller and ask for a warranty or guarantee on the part, if possible. Additionally, consider purchasing a new switch if you prioritize the peace of mind that a new part provides or if the cost difference is negligible.

In summary, your decision to buy a used EGR vacuum switch (494817) for a 1974 Pontiac Firebird Trans Am Prix depends on your budget, tolerance for risk, and priority for peace of mind. Inspect the part closely and weigh the potential advantages and disadvantages carefully before making a purchase.

Details:

I have a limited number of these 5. Pictured is a THERMAL Vacuum Ported switch which gets mounted on the intake. The multi-port switch goes to the distributor vacuum advance EGR valve and controls spark. They've been in storage since the mid-90's.

part #: 494817 prices

• $75.00-$95.00

specifications disripa:

• for models: Firebird, Prix, Grand
• for makes: Pontiac
• for years: 1974
• mpn: 494817
• type: Distributor

seller disripa:

• city: Lansdale, Pennsylvania
• rating: 100.0%
• # reviews: 1493

offer disripa:

• quantity: 1
• options: Ship-to-home
• started: January 10, 2025
• availability: In Stock
• sold: 0

shipping disripa:

• transit: 4-11 Days
• cost: $26.64
• carrier: FedEx
• class: Standard
• service: FedEx Ground or FedEx Home Delivery
• type: Calculated

returns disripa:

• time: 14 Days
• policy: Returns Accepted
• paid by: Buyer

general disripa:

• Car Truck Parts Accessories > Ignition Systems Components > Distributors
• condition: New other see details

payments disripa:

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

Pontiac 494817 Is Similar To:

• 0745501 Prw Distributor Drive Gear Fits Pontiac Firebird Bonneville 842864003038 (26.1% similar) All products are covered by manufacturers warranty. 491 - long 80: distributor gear, bronze, pont V8. 24X7 online. Listing data is catalog provider. Pre supplied your vehicles manufacturer with the distributor drive gear...(March 26th, 2018)
• 1111105 Pontiac Original Distributor Firebird Gto (34.4% similar) This was used on 1970 pontiac firebird 455 model's, possibly other applications too. See my offers. Up for offer is an original distributor dated 9H28. This is an early take off distributor in un restored condition. Looks very good, not sure if it requires a rebuild...(December 2nd, 2018)
• 1111250 Pontiac Distributor Firebird Gto Gp Catalina (36.8% similar) I make no guarantees as to its origins. My research indicates that it is appropriate for a 1967 firebird or got with 400 CID engine, grand prix, Catalina, Bonneville 428 engine. 1967 pontiac distributor I purchase years ago with a large lot of parts. I did an internet search and that's what came...(April 2nd, 2018)
• 1112070 Pontiac Distributor Grand Prix (37.8% similar) It has been completely disassembled, cleaned, inspected, re-lubed, and re-assembled. Shipping is to the 48 continuous states only. Vacuum advance canister works and a new set of Delco D-109P point installed...(September 12th, 2018)
• 1116050 Delco Remy Vacuum Advance Pontiac Nos New Unopened (22.9% similar) Nos unopened Delco REM vacuum advance for Pontiac's...(April 10th, 2018)
• 1116167 Delco Remy Pontiac Nos Oem Distributor Vacuum Advance (37.3% similar) Stamped Delco REM. Search for: old car parts NW NW, inc. Buy now to make sure you get this for your car or truck. This is not an overseas knock off but original Delco REM vacuum advance made in USA. Pontiac 8 cylinder, 1960 1ST production with distributor nos oem Delco REM vacuum advance number, ...(October 19th, 2018)
• 16135270 Pontiac Firebird Vats Module Theft Deterrant (34.9% similar) Please see pics, and my other listings. Gm pn part worked well when removed. For sale is a used vats module, removed from 1991 pontiac firebird formula...(March 4th, 2018)
• 1965864 Acdelco Gm Original Equipment Fits Pontiac Firebird Grand Prix (37.8% similar) Orders ship from 12 major metropolitan markets in the us. The return id that begins with a 5 is not our rma. and we urge you to take a look if cannot find what are looking for at egghead...(March 25th, 2018)
• 20-2114 Arc Remanufacturing Inc Distributor Fits Pontiac Fiero Firebird Grand Am (32.7% similar) ...(March 4th, 2019)
• 30-1851 Cardone Industries Reman Distributor Point Type Fits Pontiac Firebird Bonne (24.4% similar) ...(March 31st, 2018)
• 30-1874 Cardone Industries Electronic Reman Fits Pontiac Firebird 082617028882 (22.5% similar) ...(November 6th, 2018)