1999-2018 Cummins 5.9L/6.7L Hamilton Cams Retainer Set (07-s-004)
When pushing your engine beyond 4,500 RPM—especially with a high-lift camshaft—our Performance Valve Spring Retainers are a must. Engineered to withstand intense valvetrain stresses, these retainers pair perfectly with our #110 valve springs for reliable high-RPM performance.
Key Benefits
- Built for High RPM: Designed to handle the extra strain of 4,500+ RPM
- Optimized for Large Lobe Lift: reduced mass for precise valve control with aggressive cam profiles.
- Superior Strength & Durability: Robust materials and expert craftsmanship ensure long-lasting performance under extreme conditions.
- Must Use #110 Springs Above 4,500 RPM: Guarantee safe and efficient valvetrain function by combining these retainers with our #110 springs.
Safeguard your valvetrain and extract maximum power from your high-lift cam setup—install our High-Lift Valve Spring Retainers for dependable performance at the track or on the street.
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 can change quickly. For the most accurate information, 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.
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.
