2003-2018 Cummins 5.9L/6.7L 24V Manton Conical Valve Spring Kit (D-105-KIT-24v)
2003-2018 Cummins 5.9L/6.7L 24V Manton Conical Valve Spring Kit (D-105-KIT-24v) is backordered and will ship as soon as it is back in stock.
Shipping & delivery
Usually ships in 2–3 business days unless a different lead time is shown on this page. Shipping cost is calculated at checkout (UPS or USPS to the contiguous U.S.).
Shipping policy · Returns · Fitment questions? (561) 207-7988
Delivery and Shipping
Delivery and Shipping
Standard order processing is 2–3 business days unless this product or your order confirmation states a different lead time. Custom-built, made-to-order, backorder, and pre-order items follow their stated lead times.
Enclosures and subwoofer boxes ship for $50 per unit. Other shipping charges are calculated at checkout. Orders outside the contiguous 48 United States may require additional shipping; we will contact you for approval before shipment.
Subwoofer boxes ship UPS Ground where available. Read our Shipping Policy and Return and Refund Policy for delivery, product-specific return windows, and warranty details.
2003-2018 Cummins 5.9L/6.7L 24V Manton Conical Valve Spring Kit (D-...
2003-2018 Cummins 5.9L/6.7L 24V Manton Conical Valve Spring Kit (D-105-KIT-24v) is backordered and will ship as soon as it is back in stock.
Description
Description
2003-2018 Cummins 5.9L/6.7L 24V Manton Conical Valve Spring Kit (D-105-KIT-24v)
Transform your Cummins engine with Manton’s complete valve spring and retainer kit, designed to enhance performance, durability, and longevity. This drop-in package offers 105 lbs. of seat pressure and 165 lbs. of open pressure at 0.420 lift, crucial for vehicles with upgraded performance cams.
Engineered with Manton’s exclusive “Pressure Tower” conical spring design and “Ultra Light” steel retainers, this kit ensures the highest strength-to-weight ratio and unmatched reliability across any application, whether your truck serves daily commutes or competitive racing.
The springs are optimized for up to 75 PSI boost, backed by 105 lbs. of seat pressure. Manton provides heat-treated spring shims to adjust seat pressure as needed for different boost levels. For older trucks from 1998.5 to 2002, where valve spring pockets may be too tight, Manton offers a valve spring pocket cutter to enlarge the pocket for a perfect fit with this advanced spring kit.
Fitment & installation
Fitment & installation
Check the selected part against your vehicle. Need help? Call (561) 207-7988.
Selected part: D-105-KIT-24v
Loading vehicle fitment…
Read FOX’s application notes for part 987-24-001 (rear shock)
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
