Shipping Policy
At Sinister Diesel, we work hard to get your order processed, shipped, and delivered as quickly and accurately as possible. This page explains how shipping works, what to expect after placing an order, and answers common shipping questions.
Order processing time
Orders placed by 2 pm Pacific Time on business days (Monday through Friday, excluding holidays) are typically processed the same day. Orders placed after this cutoff, on weekends, or on holidays will begin processing on the next business day.
Some products are made to order, on backorder, or ship from different locations. In these cases, additional processing time may apply. We do our best to display known lead times on product pages when available, and we will notify you by email if we become aware of a backorder or delay after your order is placed.
When does shipping transit time begin?
Shipping transit time begins once your order has been picked up by the carrier and is in their possession. The day of pickup is not counted as a transit day. For example, if a 2-Day Air order ships from Sinister Diesel on Monday, the carrier’s transit time begins on Tuesday and delivery would typically occur on Wednesday. Transit times are calculated by the carrier and do not include order processing or handling time.
All shipping transit times are based on business days only. Saturdays, Sundays, and carrier-observed holidays are not considered shipping or delivery days.
Shipping carriers and tracking
We ship using trusted carriers including UPS and USPS. Carrier selection and service level are chosen by Sinister Diesel based on package size, destination, and operational requirements. Once your order ships, tracking information will be sent via email.
Shipping options
Available shipping options are displayed at checkout based on your order and delivery address. Expedited shipping options may be available for certain items. Unless a customer selects and pays for a specific expedited shipping method or carrier at checkout, Sinister Diesel reserves the right to select the final carrier and service used to fulfill the order. Free shipping, when available, does not include expedited or guaranteed delivery services.
Free shipping
Free shipping is available on qualifying orders of eligible Sinister Diesel products that meet the minimum order threshold. Details, exclusions, and limitations are outlined on our Free Shipping Policy page.
Where we ship
We ship to customers throughout the contiguous United States. International customers are responsible for all duties, taxes, brokerage fees, and import charges.
Oversized and freight items
Some products are oversized, overweight, or require freight (LTL) shipping and may incur additional charges.
Delays outside our control
Delivery delays can occur due to weather, carrier issues, or other circumstances beyond our control. Shipping transit times are estimates and are not guaranteed.
Shipping protection
Shipping Protection is an optional service offered at checkout that provides coverage for eligible shipments.
Address accuracy
Customers are responsible for providing a complete and accurate shipping address.
Policy updates
Sinister Diesel reserves the right to update or modify this Shipping Policy at any time.
UPS Ground Transit Time Map
The map below shows estimated UPS Ground transit times in business days for shipments originating from Roseville, California (ZIP 95678). Transit times are estimates only and may vary.
Subject to the Tariff/Terms and Conditions of Service, UPS guarantees on-schedule delivery of packages, shipped via UPS services that are listed as guaranteed, or will refund transportation charges. Guaranteed Service is not available in all areas and does not apply to shipments containing a package with an Additional Handling or Large Package surcharge.
Scheduled business days and delivery schedules may change due to volume, holidays, or operational conditions. Service to some remote areas may require additional delivery days. For current delivery schedules, service availability, and details regarding the UPS Service Guarantee, please refer to the UPS Rate and Service Guide. The most up-to-date transit time information is available at ups.com/ctc at the time of shipping. Certain commodities and high-value shipments may require additional transit time for customs clearance.
