GM 12458120 Aurora Intrigue Valve Cover Gasket

( Brand: Gm ), ( Manufacturer Part Number: 12458120 ), ( Type: Valve Cover Gasket ), ( Manufacturer Warranty: 1 Year ), ( Placement On Vehicle: Front Right ), ( Year: 1999 2000 2001 2002 ), ( Fitment Type: Direct Replacement ), ( Certification: Genuine Oem )

Review GM Genuine Oldsmobile Aurora Intrigue Valve Cover Gasket fits 1999–2002

The GM 12458120 valve cover gasket is a crucial component in the engine compartment of select Oldsmobile Aurora and Intrigue models manufactured between 1999 and 2002. This gasket is designed to seal the connection between the valve cover and the cylinder head, preventing the escape of engine coolant and combustion gases.

The valve cover gasket is made from a high-quality, heat-resistant material that can withstand the extreme temperatures and pressures encountered within the engine. It features an intricate, multi-layered design with raised sealing edges to ensure a tight seal and prevent leaks. The gasket also includes specific channels for the various engine sensors and breather system, allowing for proper function and maintenance.

This gasket is a direct replacement for the original part and comes in an easy-to-install format. It's designed to fit perfectly on the valve cover and cylinder head, minimizing the need for modifications or adjustments during installation. The gasket arrives packaged in protective materials to ensure it arrives at your doorstep in excellent condition, ready for immediate use.

Installing the new GM 12458120 valve cover gasket is a straightforward process, typically taking less than an hour for a skilled mechanic. However, if you are not comfortable working on your own vehicle, it is recommended that you consult a professional to ensure the job is done correctly and safely.

By replacing a worn or damaged valve cover gasket with this high-quality GM original equipment part, you can restore the sealing integrity of your engine and prevent costly repairs that may result from coolant or oil leaks. Additionally, a properly sealed engine can lead to improved performance, increased fuel efficiency, and extended engine life.

In summary, the GM 12458120 valve cover gasket is a vital component for the Oldsmobile Aurora and Intrigue models from 1999 to 2002. It is made from heat-resistant materials, features a multi-layered design for a tight seal, and is easy to install. By replacing a worn or damaged gasket with this original equipment part, you can restore the sealing integrity of your engine, improve performance, and extend engine life.

The GM 12458120 valve cover gasket is a part used in Oldsmobile Aurora vehicles from the model years 1999 to 2002. Replacing this gasket can help address issues related to oil leaks and improve engine performance. Here are some pros and cons associated with purchasing and installing this gasket.

1. Effective Leak Prevention: A faulty valve cover gasket can cause oil leaks, leading to messy driveways and expensive repairs. Installing a new gasket can prevent these leaks and save money in the long run.

2. Improved Engine Performance: A worn-out gasket can allow oil to enter the intake system, diluting the air/fuel mixture and negatively impacting engine performance. Replacing the gasket can help restore proper engine function.

3. Relatively Affordable: The GM 12458120 valve cover gasket is a relatively inexpensive part compared to other engine repairs. This makes it a cost-effective solution for addressing oil leak issues.

1. Labor Costs: Installing the gasket is not a trivial task and requires specialized tools and knowledge. Labor costs can add significantly to the total cost of the repair.

2. Potential for Other Issues: A leaking valve cover gasket may be a sign of more extensive engine problems. Replacing the gasket may uncover additional issues that require further repair or replacement.

3. Time Consuming: The process of removing the old gasket, preparing the surface for installation, and installing the new gasket can be time-consuming, taking several hours.

The GM 12458120 valve cover gasket is an essential component for maintaining the health of an Oldsmobile Aurora engine. While the process of replacing the gasket can be labor-intensive and time-consuming, the benefits of preventing oil leaks, improving engine performance, and potentially saving money on future repairs make it a worthwhile investment. If you are experiencing oil leak issues or notice a drop in engine performance, consider having the valve cover gasket inspected and replaced as needed.

part # 12458120 price

• $51.02

specifications maniheader:

• for makes: Oldsmobile
• for years: 1999-2002
• brand: Gm
• manufacturer part number: 12458120
• type: Valve Cover Gasket
• manufacturer warranty: 1 Year
• placement on vehicle: Front Right
• year: 1999 2000 2001 2002
• fitment type: Direct Replacement
• certification: Genuine Oem

shipping maniheader:

• service: UPS Ground
• class: Standard
• transit: 3-7 Days
• carrier: UPS
• type: Fixed
• cost: $0.00

payments maniheader:

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

offer maniheader:

• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• started: July 23, 2025
• best offers: True

returns maniheader:

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

general maniheader:

• condition: New
• Engines Engine Parts > Gaskets, Seals Hardware > Gaskets Seals

seller maniheader:

• # reviews: 1034123
• rating: 98.7%

Gm 12458120 Is Similar To:

• Buick 1297940 1937 Inline Straight 8 Exhaust Manifold Assembly - Chevrolet Oldsmobile Gm (30.7% similar) $49.94–$195.00. (September 15th, 2024)
• Gm 22017478 Day 2 A.i.r. Smog Exhaust Manifold Tube And Check Valve 1981 Camaro Z-28 (34% similar) $10.00–$19.99. (October 5th, 2024)
• Oldsmobile Gm573325lh 59-64 394 Left Exhaust Manifold Gm 573325 Lh (22.7% similar) $135.00–$500.00. (October 26th, 2024)
• Gm 12627203 2013-2020 Malibu Impala Envision Ats 2.5l Exhaust Manifold Heat Shield Cover (29.4% similar) $88.30–$89.01. (November 7th, 2024)
• Pontiac 10009617 77-81 Trans Am Firebird Formula Turbo 301 Valley Pan Push Rod Cover Gm (22.2% similar) $89.99–$134.00. (November 18th, 2024)
• Gm 1060001190 Duramax Diesel 6.6l Egr Valve Sierra Silverado Denali Oem (35.6% similar) $203.38. (November 20th, 2024)
• Oldsmobile 563300 1954-1955-1956 324 Exhaust Manifold 563300-rh Olds Super 88-98 Gm (24.1% similar) $150.00–$449.95. (November 25th, 2024)
• Gm 97376410 Genuine Fuel Injection Feed Manifold (34.1% similar) $50.00–$89.95. (December 18th, 2024)
• Gm 12658130 Camaro Ss Zl1 Engine Cover - V-8 Ls3 And L99 Red Hot G7c (37.8% similar) $119.95–$387.10. (December 22nd, 2024)
• Hooker Blackheart Bhs5205 A/c Evaporator Side Cover - Gm 2nd Gen F-body (30.1% similar) $161.95. (December 24th, 2024)
• Gm Cadillac Escalade Oem Genuine Original Factory 4 Door Suv 1a16814 14-20 6.2l Left Driver Engine Exhaust Manifold Pipe Header (25.7% similar) #180, vehicle: Cadillac Escalade RSV year: 2015 , engine size: v8 6.2L 8 cylinder drive train: rear wheel drive, paint color code: black raven gab/wa 8555. (January 8th, 2025)