Palm Tree Rotary

Engine Rebuild

Parts Reconditioning

Engine Porting


Auto Repair


Welcome to Palm Tree Rotary, "Mazda Rotary Engineering, Parts and Service". We are located in Porterville, California and serve the rotary community worldwide. We specialize in building Mazda's Rotary Engine for durability and reliable horsepower. Palm Tree Rotary offers new and used auto parts along with CNC machining and fabrication for custom applications. The services we offer to all rotary vehicles include engine diagnostics, sensor signal calibration, custom wiring, interior/exterior replacement and rebuilding precision rotary engines to your specific needs. Our staff also performs detailed shop services to inspect and recondition good used engine parts for a quality rebuild and clean installation of your engine's accessories. We invite you to visit our facility and allow us to provide the reliable rotary support you deserve.

Contact Us

Palm Tree Rotary
51 N. Villa St. Porterville, CA 93257
Open hours
M-F, 8:00 AM — 5:00 PM (Appointment Only)

Terms / Conditions / Policies

Payment, shipping, returns, etc.
PLEASE READ THE FOLLOWING TERMS AND CONDITIONS OF USE BEFORE USING THIS WEBSITE. All users of this site agree that access to and use of this site are subject to the following terms and conditions and other applicable law. If you do not agree to these terms and conditions, please do not use this site. Disclaimer: All orders placed with Palm Tree Rotary (phone, fax, mail, & e-mail) constitutes the acknowledgement and acceptance of all conditions listed below. All parts shall remain the property of "Palm Tree Rotary" until paid for in full. All prices, materials, design, and specifications are subject to change without notice. All engine modification components, except those that are exempt, have been designed and are intended for off-highway application. These components are legal in California for racing vehicles only, which may never be used on public roads and highways. Federal and many state laws prohibit the removal, modification, or rendering inoperable of any device or element of design affecting vehicle emission or safety in a vehicle used on public highways. Violation of such laws may subject the owner or user to a fine or penalty. Installation of this part(s) may void the warranty coverage, if any, on your vehicle. Vehicles modified by the use of performance parts may no longer be lawfully used on public highways. User assumes all cost and risks associated with these and other items. Copyright: The content included in this site, including but not limited to text, graphics or code is copyrighted as a collective work under the United States and other copyright laws, and is the property of and or affiliates/ associates. The collective work includes works that are licensed to Copyright 2008, ALL RIGHTS RESERVED. Permission is granted to electronically copy and print hard copy portions of this site for the sole purpose of placing an order with or purchasing products, with approval only. Any other use, including but not limited to the reproduction, distribution, display or transmission of the content of this site is strictly prohibited, unless authorized by You further agree not to change or delete any proprietary notices from materials downloaded from the site.All trademarks, service marks and trade names of PalmTreeRotary used in the site are trademarks or registered trademarks of Shipping and Returns: Return for exchange or refund will be allowed only with prior approval of Palm Tree Rotary / All authorized return merchandise must be unused and in its original sealable packaging and must must include ALL the items/parts and pieces, etc., originally included with the product(s). No return or exchange on merchandise that shows signs of having been installed, modified, mounted, scratched, broke, missing pieces or defaced will be allowed. All Core Returns must be received by Palm Tree Rotary within 30 Calendar days of the invoice date in order to receive a credit or refund. Please write all your information clearly on the outside of your returning package and tag the item(s) inside with your name, phone number, email address, and ship to billing address. Returns must be sent freight prepaid and insured by you. A refund, exchange, or core return will not be considered until all relevant items, hardware, and accessories have been returned to us. Original shipping and handling charges are not refundable. All custom entry fees and duty associated with any return or exchanges will be charged to the customer. A written explanation and a contact telephone number where we may be able to reach you. It is the responsibility of the customer/installer to verify the correctness of size and application of all parts before installation. Shortage claims must be made within 5 working days of receipt date. All claims for damaged merchandise must be made with the shipping carrier. Please keep all shipping cartons and all packing materials for carrier inspection. Each order is processed and shipped in the order they are received. Palm Tree Rotary order processing and shipping time frames rang between 1-72 business hours after the order is placed, depending on our work load and excludes weekends and holidays. No order shall be put forth as urgent or implemented ahead of any other orders transactions without prior approval & notification put forth by Palm Tree Rotary. Shipping charges may be handled as a separate transaction in order to accurately calculate the shipping cost. Palm Tree Rotary cannot initiate any claims with the shipping carrier. All approved refunds will be paid by method of purchase. A 25% handling & restocking fee will be assessed on all authorized returns, unless prior arrangements are made & authorized by Palm Tree Rotary. All special orders (personalized/specially fitted) items must be paid in full at the time of order. All special orders and custom orders will be processed in the most timely and efficient manner possible; however, Palm Tree Rotary will not be held responsible for delays above and beyond its control. All special order items will be paid up front and prior to us ordering the item. No cancellations, refunds, or exchanges on special order items or custom order items. Any refused shipments sent back to Palm Tree Rotary does not constitute the right to a refund or credit. It is the customer's responsibility to make all arrangements with "Palm Tree Rotary" for refused shipments. It is company policy to charge the customer all freight charges associated with the shipment and a 25% restocking fee on all products shipped. WARRANTY: No warranty whatsoever will be valid if the defect was caused by customer's abuse, negligence, or mishandling. All merchandise sold by "Palm Tree Rotary" is only subject to manufacturer's warranty and conditions, if any, and is subject to submission to the manufacturer for inspection and approval for repair or replacement of merchandise. Customer, however, will be responsible for all shipping and handling fees. It is the customer's responsibility to retain any and all invoices for their record and warranty claims. Use of Site: Harassment in any manner or form on the site, including but not limited to, e-mail, chat, phone or by use of obscene or abusive language, is strictly forbidden. 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