2001-2016 Duramax LB7/LLY/LBZ/LMM/LML PPE Head Stud Kit (118034350)
For engine builders who demand the ultimate level of strength and precision in their fasteners, the PPE-288 Head Stud Kit is the ultimate solution. Our proprietary alloy is specially formulated for improved hardenability and superior stability in high-temperature environments. Its ultra-low impurity level also allows for better durability when compared to its competitions.
With an independent lab tested tensile strength of over 280,000 psi, these studs allow for the extra high clamp load in extreme applications as well as preserving excellent fatigue behavior - they will definitely surpass your expectations and deliver the performance and reliability that you need.
With accuracy and durability in mind, each PPE fastener is heat treated, precision centerless grinded, thread rolled, and surface treated, resulting in superior durability and reduced stress concentration at threads.
- Proprietary alloy formulated for improved hardenability
- Superior stability in high-temperature environments
- Ultra-low impurity level for better durability than competitors
- Independent lab tested tensile strength of over 280,000 psi
- Supports extra-high clamp loads for extreme applications
- Excellent fatigue resistance
- Heat treated, precision centerless ground, thread rolled, and surface treated
- Reduced stress concentration at the threads
GM Duramax
2001-2016 LB7/LLY/LBZ/LMM/LML
Please note that actual products may differ from images shown on our website. While we strive for accuracy in product listings, manufacturers may make changes to design, contents, color, or packaging without notice. Product images are for illustrative purposes only and may not represent the exact item you receive.
By purchasing, you acknowledge and accept that variations may occur and release OCDiesel from any liability related to product appearance differences.
Order Processing Time:
Orders are typically processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days depending on the product and customization required.
Shipping Methods:
Standard Shipping (3-7 business days - location dependent)
Express Shipping (1-2 business days- location dependent)
Packaging:
All parts are securely packaged to better prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.
Shipping Rates:
Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.
Order Tracking:
Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your OCDiesel account.
USA Shipping:
We ship to the USA! (Except California) Please note that USA shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.
Not all products are stocked in-house. To ensure you receive your desired items promptly, please check for availability before placing your order. Some products may be backordered due to high demand or supply chain constraints, which could result in longer delivery times.
We strive to keep our inventory updated regularly, but availability & pricing can change quickly without notice. For the most accurate information & pricing, contact the OCDiesel customer service team using either this link, or the chat bubble on the bottom right of this page.
Most items are eligible for return within 30 days of shipping, provided they are unused, in original manufacturer packaging, and in resalable condition.
All returns & cancellations are subject to restocking and cancellation fees.
On products with status "Contact for availability" please contact us before ordering to confirm availability. Orders placed without prior availability confirmation are subject to current lead times and our cancellation/restocking policy.
Returns must include a Return Authorization Number (RA #) and be shipped with tracking. Return shipping costs are the responsibility of the customer.
Custom/special orders, electronics, and digital goods are final sale—no returns, refunds, or exchanges.
For full return instructions, fee details, and conditions, click here.
Q&A
No questions answered yet. Have a question about this product? Ask our team below.
