GM 14015693 Nos Cranshaft Pulley Bolt 14090949
fits make: Pontiac, Buick.
( Brand: Gm ), ( Manufacturer Part Number: 14015693 ), ( Part Type: Bolt ), ( Country Of Origin: United States )
Review GM Nos Oem Genuine Cranshaft Pulley Bolt Pontiac Buick
The **GM 14015693 (Part Number: 14090949) Crankshaft Pulley Bolt** is a precision-engineered fastener specifically designed for use in the crankshaft pulley assembly of select **Pontiac** and **Buick** vehicles, ensuring reliable performance and proper alignment within the engine s auxiliary drive system. This high-strength bolt is crafted from **heat-treated alloy steel**, delivering exceptional durability and resistance to fatigue, vibration, and the high torque loads encountered during engine operation. Its **fine-threaded design** and **hex head configuration** allow for secure installation and removal using standard socket wrenches, while its **zinc-plated finish** provides corrosion protection, extending the component s lifespan even in harsh environmental conditions. The bolt features a **tight tolerance** to prevent loosening over time, which is critical for maintaining proper tension on the crankshaft pulley an essential component for the smooth operation of the serpentine belt system, alternator, power steering pump, and other engine accessories. This part is a direct replacement for OEM (Original Equipment Manufacturer) specifications, ensuring a perfect fit and seamless integration into the engine bay, whether in applications such as the **LS-series V8 engines** found in models like the **Buick Enclave, GMC Acadia, or Pontiac G8**, or other compatible GM platforms. Proper installation requires adherence to torque specifications to avoid stripping or over-tightening, which could compromise engine performance or lead to premature wear. Ideal for both **original equipment replacement (OER)** and **aftermarket upgrades**, this bolt is a must-have for mechanics, DIY enthusiasts, and fleet maintenance teams seeking dependable, long-lasting hardware for their GM powertrains.
**Analysis of Buying GM 14015693 (Crankshaft Pulley Bolt) Part Numbers 14090949**
### **Pros of Purchasing This Part**
1. **Direct Fitment** This bolt is designed specifically for GM engines (common in Pontiac and Buick models) and is a direct replacement for the original equipment manufacturer (OEM) part. It ensures compatibility without modification.
2. **Reliability** GM parts, especially aftermarket replicas, are engineered to meet or exceed OEM standards. A quality bolt from a reputable supplier (e.g., RockAuto, Summit Racing, or an authorized GM parts dealer) should provide durability and prevent crankshaft pulley issues like slipping or loosening.
3. **Prevents Engine Damage** A faulty or loose crankshaft pulley bolt can lead to pulley detachment, which may damage the timing belt/chain, water pump, or alternator. Replacing it proactively avoids costly repairs.
4. **Ease of Installation** These bolts are standard fasteners and require basic tools (socket wrench, torque wrench). No specialized equipment is needed, making DIY replacement straightforward.
5. **Cost-Effective** Replacing a single bolt is far cheaper than repairing damage caused by a failed pulley (e.g., $10 $30 for the bolt vs. $500 for a timing belt replacement).
6. **Availability** These part numbers are widely stocked by online retailers and auto parts stores, ensuring quick access.
### **Cons of Purchasing This Part**
1. **Potential Counterfeit Risks** Some aftermarket parts, especially from unbranded sellers, may be counterfeit or substandard. Low-quality bolts can strip threads, loosen over time, or fail prematurely. Always buy from trusted sources (e.g., RockAuto, Summit, or a local dealer with return policies).
2. **Torque Specifications Must Be Followed** Over-tightening or under-tightening can damage the crankshaft pulley or bolt threads. The correct torque spec (typically **80 100 ft-lbs** for these bolts) must be adhered to, which requires a torque wrench.
3. **Accessibility Challenges** The crankshaft pulley bolt is located behind the timing cover or alternator, requiring removal of these components. This may involve disconnecting belts, hoses, or sensors, adding labor time if not experienced.
4. **Warranty Concerns** If the vehicle is under warranty, replacing a bolt with an aftermarket part may void certain coverage. Check with the dealer or manufacturer before proceeding.
5. **Mismatched Part Numbers** Double-check the part numbers against your engine s specifications. Some GM engines (e.g., LS-series vs. older V6/V8) may have slightly different bolt designs or torque specs. Verify compatibility with your vehicle s service manual.
6. **Rust or Corrosion Risk** Older vehicles may have rusted bolts or threads, making removal difficult. A penetrating oil (PB Blaster) may be needed, adding time to the job.
### **Key Considerations Before Purchase**
- **Source Verification**: Purchase from a reputable supplier (e.g., RockAuto, Summit Racing, or an authorized GM dealer) to avoid counterfeit parts.
- **Torque Tool Requirement**: Ensure you have a **torque wrench** calibrated to the correct specification (usually **80 100 ft-lbs** for these bolts).
- **Engine Access**: Be prepared to remove the timing cover, alternator, or accessory belt to reach the bolt. Consult a repair manual if unsure.
- **Alternate Solutions**: If the bolt is seized, consider using a **bolt extractor** or **thread chaser** to avoid damaging the crankshaft pulley.
- **DIY vs. Professional Help**: If you lack mechanical experience, a mechanic may charge **$50 $150** for labor, but the part itself remains inexpensive.
### **Conclusion**
Buying the **GM 14015693 crankshaft pulley bolt (part numbers 14090949)** is a **cost-effective and practical solution** for preventing engine damage caused by a failed pulley. The risks are minimal if you source the part from a trusted supplier and follow proper installation procedures. The primary drawbacks counterfeit parts, torque precision, and accessibility can be mitigated with careful planning and the right tools.
### **Recommendation**
1. **Buy from a trusted source** (e.g., RockAuto, Summit Racing, or a local GM dealer) to ensure authenticity and quality.
2. **Verify part numbers** against your vehicle s engine specifications to confirm compatibility.
3. **Use a torque wrench** and follow the manufacturer s torque specification to avoid damage.
4. **Prepare for removal challenges** be ready to disassemble parts of the engine bay if necessary.
5. **Consider professional help** if you re uncomfortable with engine disassembly or torque application.
**Final Verdict**: **Proceed with purchase** if you re confident in your ability to install it correctly. The bolt is a simple, high-value fix that prevents far more expensive repairs. If unsure, consult a mechanic for guidance.
Details:
part #: 14015693 prices
- $15.00-$35.00
specifications cranshafengin:
- for makes: Pontiac, Buick
- brand: Gm
- mpn: 14015693
- part type: Bolt
- country of origin: United States
returns cranshafengin:
- policy: No Returns
seller cranshafengin:
- city: Waldo, Wisconsin
- # reviews: 7522
- rating: 100.0%
offer cranshafengin:
- availability: In Stock
- options: Ship-to-home
- started: March 17, 2026
- sold: 0
- best offers: True
- quantity: 1
payments cranshafengin:
- other
- wallet: Apple-pay
- credit card: Diners-club
shipping cranshafengin:
- service: USPS Priority Mail, USPS Priority Mail Padded Flat Rate Envelope, UPS Ground
- type: Calculated
- cost: $15.60
- class: Expedited, Standard
- transit: 3-8 Days
- carrier: USPS, UPS
general cranshafengin:
- Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
- condition: Used
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