Payment must be received within one week of the purchase. Paying sooner will lead to less unnecessary delays in shipping.

Shipping Policy

Shipping Charge covers the 48 Continental United States ONLY.
APO/FPO/PO BOXES Deliveries excluded.
PayPal Confirmed Addresses Only
To ship to Hawaii/Alaska/Puerto Rico and any other U.S. Territory, purchase the item, but do not pay. Contact us by e-mail with your zipcode so we can determine and update the shipping surcharge for your area. Once this is updated you will be able to complete the check out and payment process.
To ship INTERNATIONALLY, we participate in the E-Bay Global shipping Program. If your country is not listed as a participating country contact us for a quote. We will ship USPS. Any countries’ duties and taxes will not be included, and will be the buyers responsibility.

*Same Day shipping does not apply to Saturdays/Sundays/Holidays and is only on orders received by 1:00 PM PST. Please specify sizes when ordering, even if they are Standard Sizes.
If we do not receive your size information at the time of checkout, we will send you an e-mail requesting verification of sizes. Your order will be held for 24 hours, awaiting your response. After that time lapse, we will ship Standard Sizes as a default. If Standard size were not an available size, we will ship the first size listed.

Items Will be Shipped by either UPS,USPS,FedEx or OnTrac on the Same or Next Business day of receiving full payment Actual shipping time usually takes between 2-7 shipping days; depending on location. If you do not receive your items in 7 shipping days contact us and we will locate your order. The address listed on the paypal payment confirmation will be the address we ship to.

Shipments MUST be inspected at the time of the delivery for damage. If a freight claim is not filed then we can not do anything. Contact us to do a freight claim immediately if damage is noticed.

Returns Policy

All returns must be made within (30) days and must be in original, unused, unopen condition. C.O.D.s are not accepted on returns, buyer is responsible for return shipping. All returns must be accompanied by a return authorization number. Refunds will be made in the same manner the original payment was made. If the return is based upon a mistake that WE made, we will reimburse ANY shipping expenses acquired. It is the sole responsibility of the buyer to properly package any items being returned. Credit will not be given for items that are damaged during return shipping. If it is past 30 days and you would like to initiate an exchange or return of parts, contact us anyways. Usually we will find a way to help you out.

Terms Of Sale

Any warranties on the products(s) sold hereby are those made by the manufacturer. The seller, Grumpys Performance Center, hereby expressly disclaims all warranties, either expressed or implied, including any warranty of merchantability or fitness for a particular purpose, and Grumpys Performance Center neither assumes nor authorizes any other person to assume for it any liability in connection with the sale of said products. Any limitation contained herein does not apply where prohibited by law. Any suits arising from the sale of the goods described in this add, must be filed in Clackamas County, Oregon and such suits shall be governed by the laws of Oregon.

About Us

Grumpys Performance Center is a One-Stop Service and Dealership Alternative.
We have been rebuilding quality engines for over 40 years. We pride ourselves on the continuous quality of our workmanship.
We employ state-of-the-art equipment in our new 40,000 square-foot machine shop and warehouse located in Oregon.
We are both ASA and Engine Pro certified and a longtime member of the Automotive Engine Rebuilders Association.
Thats WHY
We are the #1 Diesel and Gas Engine Remanufacturing Machine Shop in the Northwest and we are now happy to be expanding our services NATION WIDE.

We have full time customer service representatives available to process your orders.
Monday through Friday, excluding holidays. 8:30 am to 5:00 pm PST