Due to increased holiday shipping volumes, USPS Ground Advantage and USPS First-Class Mail International shipments may experience significant delivery delays. This applies primarily to Combo PCV kits, Valve Covers, and international orders.
During previous holiday seasons, some domestic USPS shipments experienced delays of up to 2 weeks, while certain international shipments took over 30 days to arrive.
We strongly recommend selecting UPS shipping options at checkout for more predictable delivery times and improved shipment tracking, especially if your order is time-sensitive.
PCV Fix Kits and Complete Test Kits with "free shipping" always ship with either USPS Priority Mail or UPS Ground, which minimizes delays. However, delays can still occur outside of our control.
More information can be found on our Delivery Options page