GM 12634365 Engine Front Crankshaft Oil Seal

( Brand: Gm ), ( Manufacturer Part Number: 12634365 ), ( Part Type: Oil Seal Engine Crankshaft ), ( Manufacturer Warranty: 1 Year ), ( Oe/oem Part Number: 91212-r70-a01 ), ( Items Included: Seal ), ( Material: Steel ), ( Vintage Part: No )

Review GM Engine Front Crankshaft Oil Seal

The **GM 12634365 Engine Front Crankshaft Oil Seal** is a precision-engineered, high-performance sealing component designed specifically for General Motors (GM) applications, ensuring reliable protection against oil leaks while maintaining optimal engine performance. Crafted from durable **nitrile rubber (NBR)** reinforced with high-quality steel and fiber reinforcements, this oil seal is engineered to withstand extreme temperatures, mechanical stress, and prolonged exposure to engine lubricants, making it an ideal choice for both original equipment and aftermarket repairs. The seal features a **precision-molded lip design** with a self-adjusting, spring-loaded mechanism that provides a consistent, low-friction seal against the crankshaft, minimizing wear while preventing oil from escaping the engine bay or contaminating external components. Its **robust construction** includes a **metal-reinforced housing** that ensures proper alignment and durability, reducing the risk of premature failure especially in high-mileage or performance-oriented vehicles. Whether installed in applications such as the **LS-series V8 engines, Ecotec inline-4 engines, or other GM powertrains**, this oil seal delivers long-lasting reliability, helping to extend engine life and prevent costly leaks. Built to meet or exceed OEM specifications, the **GM 12634365** is a trusted solution for mechanics and DIY enthusiasts seeking a dependable replacement part that balances performance, durability, and ease of installation.

**Pros and Cons of buying a GM 12634365 Engine Front Crankshaft Oil Seal**

1. **Direct Fitment:** This part is specifically designed for GM engines, ensuring compatibility with your vehicle s crankshaft configuration. This reduces the risk of improper installation or functionality issues that can arise with aftermarket or non-specific parts.

2. **Quality and Reliability:** GM parts are generally manufactured to meet strict quality standards, which can translate to better durability and performance compared to lower-quality alternatives. The seal is engineered to withstand the demands of your engine s operation.

3. **Warranty Coverage:** Purchasing from an authorized GM dealer or a reputable supplier often includes warranty coverage, providing peace of mind in case the seal fails prematurely or doesn t perform as expected.

4. **Ease of Installation:** Since it is an OEM (Original Equipment Manufacturer) part, it is designed to fit seamlessly with the existing components in your engine. This can simplify the replacement process, especially if you are familiar with engine work or have access to professional help.

5. **Prevents Leaks:** A faulty crankshaft oil seal can lead to oil leaks, which can cause engine damage, reduced performance, or even catastrophic failure. Replacing it with a genuine GM part helps maintain proper lubrication and prevents such issues.

6. **Compatibility with Other GM Components:** The seal is likely designed to work harmoniously with other GM engine components, reducing the likelihood of compatibility issues that might arise with aftermarket parts.

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1. **Higher Cost:** GM OEM parts are typically more expensive than aftermarket alternatives. The price may be a significant factor, especially if you are working with a limited budget or replacing multiple components.

2. **Limited Availability:** Depending on your location, genuine GM parts might not be readily available at local auto parts stores. You may need to order online, which could involve shipping delays or additional costs.

3. **Potential for Overkill:** If your vehicle is older or has been heavily modified, an OEM part might be more robust than necessary. In such cases, an aftermarket seal that offers similar performance at a lower cost could be a more practical choice.

4. **Mixed Quality Perceptions:** While GM parts are generally reliable, there have been instances where quality control issues have led to defects. This is relatively rare but worth considering, especially if you are purchasing from a less reputable source.

5. **Environmental and Ethical Concerns:** Some consumers prefer to avoid purchasing new OEM parts due to environmental concerns (e.g., manufacturing processes, disposal of old parts) or ethical considerations (e.g., labor practices in GM s supply chain). Aftermarket or refurbished parts might be seen as more sustainable alternatives.

6. **Risk of Counterfeit Parts:** When purchasing online, there is a risk of receiving counterfeit GM parts, which may not meet the quality or performance standards of genuine parts. Buying from authorized dealers or well-reviewed sellers can mitigate this risk but adds an extra layer of caution.

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The GM 12634365 engine front crankshaft oil seal is a high-quality, reliable choice for replacing a worn or damaged seal in your GM vehicle. Its direct fitment, compatibility with other GM components, and potential warranty coverage make it a strong option for those prioritizing performance, longevity, and peace of mind. However, the higher cost and potential availability issues may be drawbacks, particularly for budget-conscious buyers or those in remote locations. If you value brand consistency and long-term reliability, the OEM part is a solid investment. For those looking to save money or have specific concerns about the seal s necessity, an aftermarket part from a reputable manufacturer could be a viable alternative after thorough research.

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If you are replacing the seal due to a confirmed leak or wear and your vehicle is still under warranty (if applicable), purchasing the genuine GM part is highly recommended. This ensures the best fit, performance, and compatibility with your engine. If you are working with a limited budget or the seal is not critical to your vehicle s immediate operation, consider comparing aftermarket options from well-reviewed brands (e.g., Fel-Pro, Goodyear, or Gates) that offer similar specifications and warranties. Always verify the part s compatibility with your exact engine model and consult with a mechanic if you are unsure about the installation process. Prioritize purchasing from authorized dealers or trusted online retailers to avoid counterfeit parts.

Details:

Honda P/N- 91212-R70-A01 New part in bag, unopened, no manufacturer warranty provided. Fits 3.5L V6 Honda engine that was fitted to Saturn vie.

part #: 12634365 price

• $10.00

specifications cranshafengin:

• brand: Gm
• mpn: 12634365
• part type: Oil Seal Engine Crankshaft
• manufacturer warranty: 1 Year
• oe/oem part number: 91212-r70-a01
• items included: Seal
• material: Steel
• vintage part: No

payments cranshafengin:

• credit card: Discover
• other
• wallet: Paypal

returns cranshafengin:

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

general cranshafengin:

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

shipping cranshafengin:

• type: Calculated
• cost: $10.19
• class: Standard
• transit: 5-13 Days
• service: UPS Ground
• carrier: UPS

offer cranshafengin:

• sold: 0
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: June 11, 2026

seller cranshafengin:

• rating: 100.0%
• city: Orlando, Florida
• # reviews: 82

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