PONTIAC W0133-1666493-OES Am Front Crankshaft Seal

( Manufacturer Part Number: W0133-1666493-OES ), ( Part Type: Seal Crankshaft ), ( Product Type: Engine ), ( California Prop 65 Warning: Cancer And Reproductive Harm ), ( Fitment Type: Direct Replacement ), ( Compatible Make S : Pontiac, Isuzu, Suzuki, Chevrolet, Daewoo ), ( Compatible Model S : Grand Am, Lemans, Sunbird, Rodeo, Rodeo Sport, Amigo, Forenza ), ( Fitnote: Drivetypename, Manufactured After August ), ( Drivetypename: Rwd ), ( Product Subtype: Crankshafts ), ( Product Details: Engine Crankshaft Seal ), ( Department: Replacement )

Review PONTIAC Genuine Am Front Crankshaft Seal fits GRAND 1987–1989

The **W0133-1666493-OES Front Crankshaft Seal** is a high-performance, original-equipment-specification (OES) replacement seal designed specifically for Pontiac engines manufactured between **1987 and 1989**, ensuring precise fitment and optimal sealing performance for models like the **G6, Trans Am, Firebird, Sunbird, and Grand Prix**. Crafted from **high-quality nitrile rubber**, this seal features a **reinforced lip design** that maintains a tight, consistent seal against the crankshaft, preventing oil leaks and reducing engine wear over time. The seal incorporates a **metal reinforcement ring** at the outer diameter, which enhances durability and resists deformation under pressure, making it ideal for high-mileage or performance applications where reliability is critical. Engineered to meet or exceed the original equipment manufacturer s (OEM) specifications, this seal is compatible with **3.8L V6 (LF1, LF4, LF5)** and **5.0L V8 (L30, L34, L67)** engines, ensuring a seamless fit with the factory crankshaft pulley and front cover assembly. Its **precise lip geometry** and **optimized spring tension** provide superior sealing efficiency, minimizing oil leakage while withstanding the thermal and mechanical stresses of daily driving or aggressive use. Whether installed during routine maintenance or as part of a crankshaft pulley replacement, this OES seal guarantees long-lasting performance and peace of mind, helping to extend the lifespan of your Pontiac s drivetrain.

### **Pros and Cons of buying a W0133-1666493-OES Front Crankshaft Seal for a 1987-1989 Pontiac**

1. **OEM Quality and Fitment** The OES (Original Equipment Supplier) designation means this seal is manufactured to match the original equipment specifications for your Pontiac model. This ensures proper fitment, reducing the risk of leaks or improper installation.

2. **Reliability and Durability** OEM parts are designed to meet the same performance standards as factory components, which can improve longevity compared to aftermarket alternatives that may cut corners on materials or tolerances.

3. **Compatibility with Factory Systems** Since it s an OES part, it should integrate seamlessly with your engine s existing components, including the timing cover, crankshaft, and related gaskets. This minimizes the chance of compatibility issues that can arise with non-OEM replacements.

4. **Warranty Coverage (If Applicable)** Some OES parts may come with manufacturer warranties, though this depends on the supplier. If purchased from an authorized dealer or reputable auto parts retailer, you may have some level of protection against defects.

5. **Reduced Risk of Voiding Warranty** If your vehicle is still under manufacturer warranty (unlikely for a 1987-1989 model, but worth noting), using an OES part is less likely to void coverage compared to aftermarket or non-genuine parts.

6. **Easier to Source Replacement Parts Later** If you ever need to replace the seal again, OES parts are widely available through dealerships, online retailers, and auto parts stores, ensuring you won t struggle to find a direct replacement.

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1. **Higher Cost** OES parts are typically more expensive than aftermarket alternatives. For a front crankshaft seal, this could mean paying significantly more than a generic or brand-name aftermarket seal, which may offer similar performance at a lower price.

2. **Limited Availability Outside Dealerships** While OES parts are sold by dealerships and some online retailers, they may not be as widely stocked as aftermarket options. This could require ordering online or waiting for delivery, adding inconvenience.

3. **Potential for Overkill** For a vehicle of this age (1987-1989), the OES seal may be more robust than necessary. Aftermarket seals designed for this era often use materials and construction that are sufficient for the engine s lifespan, while OES parts may be built to stricter modern standards, which could be unnecessary.

4. **Installation Complexity** Replacing a front crankshaft seal often requires removing the timing belt, water pump, and other components. While the seal itself is OEM-quality, the labor involved in installation is the same regardless of the seal s brand. If you re not experienced with engine work, this could be a time-consuming or costly DIY project.

5. **No Significant Performance Advantage** Unless your engine has been heavily modified or you re experiencing specific issues (e.g., oil leaks due to wear), an OES seal won t provide a noticeable performance benefit over a well-made aftermarket seal. The primary advantage is fitment and reliability, not power or efficiency.

6. **Environmental and Ethical Considerations** OES parts are often sourced from new manufacturing runs, which may involve higher environmental costs compared to refurbished or recycled aftermarket parts. If sustainability is a concern, aftermarket options might be a more eco-friendly choice.

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The **W0133-1666493-OES front crankshaft seal** is a solid choice if your priority is **fitment, reliability, and compatibility** with your 1987-1989 Pontiac s original specifications. It s particularly justified if you re replacing a failed OEM seal or if you ve experienced issues with aftermarket seals in the past. However, the **higher cost** and **limited availability** outside dealerships may not make it the most practical option for every situation.

For most owners of this era s Pontiac, an **aftermarket seal from a reputable brand** (such as Gates, Dayco, or Fel-Pro) offers a **cost-effective alternative** that still meets performance needs without the premium price. Aftermarket seals are often backed by warranties, widely available, and designed specifically for this generation of engines.

If you re **replacing a known leak or have had poor results with aftermarket seals before**, the OES part is worth considering. Otherwise, an aftermarket seal provides a **good balance of quality, cost, and accessibility**.

- You ve had issues with aftermarket seals in the past.

- You want the most direct replacement for your original equipment.

- You re comfortable paying the premium for peace of mind.

- You re on a budget and want to save money without sacrificing quality.

- You re replacing the seal as a routine maintenance item (not due to a failure).

- You prefer the convenience of wider availability and lower cost.

For a 1987-1989 Pontiac, **aftermarket seals from brands like Gates or Dayco** are often a practical and cost-effective alternative to the OES part, provided they are the correct part number for your engine configuration. Always verify the seal s compatibility with your specific engine (e.g., V6, V8, fuel-injected vs. carbureted) before purchasing.

Details:

And how do you know if you re getting the best price. You won't have those concerns with Genuine replacement engine parts. Designed to meet your specific needs. Genuine is here to give you the ultimate in quality and reliability at a cost can afford. Manufactured to meet or exceed strict quality requirements.

And unlike many other on-line vendors, Genuine don't just have the big items and let you scramble for details. Front Crankshaft Seal W OES by Genuine. Designed to deliver trouble-free, consistent performance. Genuine carries only top name products from well-known OE and aftermarket suppliers.

No traffic, no standing in line, order from the comfort of your home or office. Designed utilizing the latest technologies and manufactured from premium materials using state-of-the-art manufacturing equipment, this Genuine product will provide years of dependable performance reliability. Genuine carries everything from gaskets and seals to repair oil leaks, engine control system sensors make that dash light go out, parts like camshafts timing chains for major repairs. Features: Made with precision and quality in mind.

Do you recognize the name on box.

part #: w01331666493 price

• $93.55

specifications cranshafengin:

• for models: Grand
• for makes: Pontiac
• for years: 1987-1989
• mpn: W0133-1666493-oes
• part type: Seal Crankshaft
• product type: Engine
• california prop 65 warning: Cancer And Reproductive Harm
• fitment type: Direct Replacement
• compatible make s : Pontiac, Isuzu, Suzuki, Chevrolet, Daewoo
• compatible model s : Grand Am, Lemans, Sunbird, Rodeo, Rodeo Sport, Amigo, Forenza
• fitnote: Drivetypename, Manufactured After August
• drivetypename: Rwd
• product subtype: Crankshafts
• product details: Engine Crankshaft Seal
• department: Replacement

general cranshafengin:

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

seller cranshafengin:

• rating: 99.1%
• city: Shawnee, Kansas
• # reviews: 372022

payments cranshafengin:

• other
• wallet: Apple-pay
• credit card: Discover

returns cranshafengin:

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

shipping cranshafengin:

• service: UPS Ground
• carrier: UPS
• class: Standard
• cost: $15.00
• type: Fixed
• transit: 2-5 Days

offer cranshafengin:

• options: Ship-to-home
• quantity: 4
• availability: In Stock
• sold: 0
• started: May 14, 2026

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