Sonnax Transmission Company is an industry leader in the cutting-edge design, manufacture and distribution of the highest quality products to the automotive aftermarket, commercial vehicle industries and industrial sectors utilizing drivetrain technology. Sonnax Transmission Company, a Marmon/Berkshire Hathaway company, serves the aftermarket with both the Rostra Powertrain Controls and Sonnax brands.

After decades of serving the transmission aftermarket as standalone companies, Sonnax and Rostra Powertrain Controls integrated in 2021 to become a single, transmission-focused organization.

What sets us apart from the competition is our passion for quality and innovation. This passion exhibits itself in our long-standing philosophy to address the root cause of a problem, and not just treat the symptoms. In striving to discover what causes common transmission and converter problems, we meld new ideas, materials and state-of-the-art testing to ensure our parts will restore OE performance, or make it better-than-new.

Rostra Powertrain Controls’ production facility is in Laurinburg, N.C., with a technical development center in Grand Rapids, MI. We are recognized globally for our exceptional quality and customer service and proudly hold ISO-9001:2015 and IATF-16949:2016 quality certifications.

For more information on Sonnax Transmission Company and Sonnax products, please visit www.sonnax.com.

Our Policy: Continuously improve our products and services in order to deliver a defect-free product on time.

 

Proud To Partner With Industry Leaders Such As:

See our distributor locator section for a full listing of world-class distribution partners.

This website and all of its contents are the intellectual property of Sonnax Transmission Company, Inc. No portion of this work may be reproduced or transmitted in any form or by any means, mechanical or electronic, including photocopying and/or recording, or by any other information storage and/or retrieval system without the prior written consent of Sonnax Transmission Company, Inc. Sonnax customers may use the part numbers only for the limited purpose of placing orders with Sonnax or otherwise operating their business, but in no case is permission granted to any customer, business entity, or individual to utilize the part numbers in order to compete with Sonnax.

Data Collection/Usage

Rostra Powertrain Controls uses the personal information that it collects to provide you with information about our products and services. The Rostra website collects the following data:

How We Get the Data	What Data	Why?
Automatically	Data about which pages you visit on the Rostra website and information from your browser such as your anonymized IP address.	In order to analyze content performance and optimize the Rostra online experience. This information also helps with troubleshooting errors.
User Submitted	Contact Information & Consumer Communications	The website allows you to request information from Rostra Powertrain Controls. Website forms collect your information so we receive feedback and can answer questions.
User Submitted	Email Address & Preferences	Users can opt-in to receiving email communications from Rostra.

Rostra takes data security seriously and maintains electronic and procedural safeguards to help protect your personal information. However, no system is 100% secure. In the event of a data breach, we will notify all those affected.

Third Party Disclosure

Rostra does not sell, share or rent your data. We use the below third-party services to store and utilize your data solely for the purposes outlined above.

Service	Reason
Google Analytics	To understand how users use the website. Only automatically collected data is sent.
Hotjar	To understand how users use the website. Only anonymously collected data is sent.
Brevo Marketing Platform	For email marketing.

 

Consent

Consent is required for Rostra Powertrain Controls to process your personal data. By using this website, you give Rostra permission to process your personal data for the purposes outlined in this policy.

You may withdraw consent at any time by contacting Rostra, at which time your personal information will be removed. You may ask to see what personal data we hold about you and be provided with a summary of such personal data and the details of the purpose for which it is being processed.

Cookie Declaration

TERMS & CONDITIONS OF SALE

1. ENTIRETY. These Terms and Conditions of Sale and all documents referenced herein (collectively, the “Terms”) are the only terms and conditions which govern the sale of goods (“Goods”) and/or services (“Services” and together with Goods, the “Deliverables”) by Sonnax Transmission Company, Inc. (“Seller”) to the buyer (“Buyer”) and supersede all other terms and conditions, oral or written, and all other communications between the parties suggesting additional or different terms. These Terms represent the final and complete understanding of the parties and may be amended or cancelled only by mutual written agreement. Acceptance is expressly limited to these Terms. Any proposal for additional or different terms or any attempt by Buyer to vary these Terms is hereby deemed material and is objected to and rejected. No terms of any document or form submitted by Buyer shall be effective to alter or add to these Terms. The earlier of Seller’s commencement of performance or Buyer’s receipt of any of the Deliverables shall constitute acceptance of these Terms.
2. PRICES. Prices quoted are in U.S. Dollars and based on the price at the time of quotation and are subject to change without notice. Clerical errors are subject to correction without liability.
3. TAXES. Prices exclude any sales, use, excise, privilege, ad valorem, or other taxes, duties, tariffs or assessments now or hereafter imposed or levied (“Taxes”) by or under the authority of any foreign, federal, state, provincial, or local law, rule, or regulation (collectively, “Law”) concerning the Deliverables or the manufacture or sale thereof. If Seller pays any such Taxes, Buyer shall, upon demand, immediately reimburse Seller for such amounts.
4. TERMS OF PAYMENT. All payments are due within 30 days from date of invoice. Orders are subject to acceptance in writing by Seller. All payments shall be made without abatement, deduction, discount or setoff. Late payments are subject to a service charge of the lesser of 1.5% per month or the highest rate permitted under applicable Law. Buyer shall be liable for all costs and expenses related to collection of past due amounts, including, without limitation, attorneys’ fees and costs. As collateral security for the payment of the Goods, Buyer hereby grants to Seller a lien on and security interest in and to all right, title and interest of Buyer in the Goods, wherever located, and whether now existing or hereafter arising or acquired from time to time, and in all accessions thereto and replacements or modifications thereof, as well as all proceeds (including insurance proceeds). This security interest constitutes a purchase money security interest under the UCC. Upon demand, Buyer shall pay all costs and expenses with respect to the administration and enforcement of the foregoing security interest. If, in Seller’s judgment, the financial condition of Buyer does not justify continuance on the terms of payment above, Seller may require full or partial payment in advance or otherwise adjust the terms including ceasing to supply Buyer.
5. DELIVERY. Delivery shall be made EXW (Incoterms 2020) Seller’s facility and title and risk of loss passes to Buyer at such time. Delivery/performance dates are estimates only. Seller shall not be liable for any claim, loss, expense, or damage of any kind whatsoever for delays, or loss or damage in transit. Claims for loss or damage shall be made solely against the carrier. Seller may, in its sole discretion, without liability or penalty, make partial shipments of Goods to Buyer. Each shipment will constitute a separate sale, and Buyer shall pay for the units shipped whether such shipment is in whole or partial fulfillment of Buyer’s purchase order.
6. INSPECTION. Buyer shall inspect the Goods upon receipt and Services upon performance, and Buyer shall immediately notify Seller in writing of any claims that the Deliverables are different than identified in Buyer’s purchase order whereupon Seller shall determine the remedy pursuant to Section 13. Failure to give such written notice upon receipt will constitute irrevocable acceptance by Buyer of all Deliverables.
7. CHANGES OR CANCELLATION. Changes in specifications or designs to any Deliverables, changes in delivery or performance schedules or reschedules or cancellations of orders are not permitted unless Seller has accepted same in writing, has determined the additional charge to be made, if any, and the same has been paid by the Buyer. Once ordered, deliverables that are made to order, discontinued or custom products (“Special Order Goods”) may not be cancelled by Buyer. Seller reserves the right to cancel any purchase orders or releases thereunder, or terminate any agreement relating to purchase of Seller’s Deliverables, upon 10 days’ notice to Buyer.
8. WARRANTY AND DEFECTIVE GOODS RETURNS. Goods may not be returned without prior written authorization of Seller and compliance with Seller’s return policies and procedures then in effect.
9. CORE DEPOSITS AND RETURNS. Seller may require Buyer pay a core deposit in connection with the purchase of certain Goods. Any such deposit will be indicated on the applicable invoice. Buyer can receive a credit equal to the invoiced deposit upon the return of a qualifying core within 180 days after the date of the invoice on which the deposit was charged. Deposits that remain uncredited after such 180 days are forfeit.
   • To return a core, Buyer must obtain a Seller-provided Return Authorization number (RA number) and attach the RA number to the returned core and to any packaging. Buyer can obtain an RA number by emailing [email protected]. A qualifying core must be (i) in rebuildable condition, free from excessive damage, such as cracks, severe corrosion, damage during return shipment or missing major components, (ii) drained of all internal fluids, and (iii) received in the original packaging. Failure to meet the requirements in this paragraph will result in (at Seller’s sole discretion) Seller rejecting the returned core and either scrapping it or returning it to Buyer at Buyer’s expense, or Seller accepting the returned core but subject to a partial credit.
   • Seller will inspect the returned core within 10 days of receipt. Credits will be processed via credit memo promptly following inspection.
   • Buyer is responsible for arranging and paying for all shipping, handling, insurance, customs, duties and import fees, tariffs and taxes, and all other similar items related to returning the core to Seller.
10. STORAGE. In the absence of agreed shipping dates, Seller may invoice Buyer and ship the Deliverables once they are ready for shipment. If, because of Buyer’s inability to take delivery on the designated agreed delivery date, the Deliverables are not shipped, stopped in transit or returned, Seller may store them for Buyer at Buyer’s expense and title and risk of loss shall pass to Buyer when the Deliverables are placed in storage and such date shall constitute the date of shipment for purposes of beginning the warranty and payment periods.
11. SERVICE TERMS. (a) Services will be provided at Seller’s then current service rates; (b) If the site is not prepared for the Services upon Seller’s arrival, Seller may charge a service fee and for any delay and/or travel time; (c) Buyer shall provide Seller with advance notice of any rules, requirements and Laws; (d) Seller may refuse, without any liability, to provide Services and to allow Seller service personnel to suspend Services or vacate any site where, in Seller’s opinion, provision of Services would pose a risk to the safety of any person. In such event, Buyer is responsible for payment of any delay and/or travel time at Seller’s regular service rates; (e) Buyer is solely liable for all damages or injuries caused or contributed to by Buyer that may occur; and (f) Buyer must provide at least 48 hours’ notice of cancellation of any Service order. If Buyer cancels with less than 48 hours’ notice, Buyer is responsible for any costs incurred by Seller caused by such cancellation.
12. INSURANCE. Buyer shall, at its own expense, maintain and carry insurance in full force and effect which includes, but is not limited to, commercial general liability (including product liability) in a sum no less than $2 million per occurrence, $2 million products-completed operations aggregate and $2 million general aggregate with insurance carriers having an AM Best rating of “A- VIII” or better. Upon Seller’s request, Buyer shall provide Seller with a certificate of insurance from Buyer’s insurer evidencing the insurance coverage specified in these Terms. Buyer shall provide Seller with 30 days’ advance written notice in the event of a cancellation or material reduction of coverage in Buyer’s insurance policy. Except where prohibited by law, Buyer shall waive, and shall require its insurer to waive, all rights of subrogation against Seller’s insurers and Seller.
13. LIMITED WARRANTIES. During the period provided by Seller in its written limited warranty for the particular Goods, Seller warrants that (i) Goods manufactured or supplied by Seller will be free from defects in material and workmanship; and (ii) Services will be performed in a timely and competent manner in accordance with industry standards. THESE ARE SELLER’S ONLY WARRANTIES. SELLER DISCLAIMS ALL OTHER EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. If during the warranty period, Buyer notifies Seller in writing that the Goods are not in conformity with the warranty and Seller agrees (after Seller’s inspection, at Seller’s option) then: (a) for Goods, Seller will repair, replace or refund the total amount received by Seller therefor, at Seller’s sole option; and (b) for Services, Buyer’s sole remedy is for Seller, at its sole option, to re-perform the Services or credit Buyer’s account therefor. These shall be Buyer’s exclusive remedies for Seller’s liability. Any claims not made during the warranty period are deemed waived. Seller’s warranty does not attach to Deliverables or parts not manufactured by Seller. All warranty returns must be pre-approved by Seller. Proof of purchase may be required. Failure to call before returning may result in a restocking fee. This warranty does not cover any Goods or portion thereof not manufactured or sold by Seller, nor any damage due to: (i) transportation; (ii) storage; (iii) mishandling, tampering, neglect, accidental damage, use, or misuse that is improper or for any purpose other than that authorized by Seller; (iv) failure to follow the instructions for such Goods; (v) installation not in accordance with Seller’s recommended installation guidelines; (vi) failure to perform any preventive maintenance; (vii) unauthorized repair, alterations, misuse or disassembly; (viii) modifications; (ix) normal wear and tear; or (x) external causes such as accidents, natural disasters, abuse, or other actions or events beyond Seller’s reasonable control. Regular, routine maintenance to keep the Goods in proper operating condition is not the responsibility of Seller. Any contract created between Seller and Buyer is subject to the specific conditions that (a) Seller is not obligated to provide insurance or indemnify Buyer, and (b) there are no flow-downs from any person or entity including the federal government that become part of the contract.
14. LIMITATION OF LIABILITY. SELLER SHALL NOT BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY INCIDENTAL, CONSEQUENTIAL, EXEMPLARY, PUNITIVE OR SPECIAL DAMAGES OR ANY OTHER LOSSES, DAMAGES OR EXPENSES WHETHER ARISING OUT OF BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE) OR OTHERWISE, REGARDLESS OF WHETHER SUCH DAMAGES WERE FORESEEABLE AND WHETHER OR NOT SELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND NOTWITHSTANDING THE FAILURE OF ANY AGREED OR OTHER REMEDY OF ITS ESSENTIAL PURPOSE. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY AMOUNT IN EXCESS OF THE PRICE RECEIVED BY SELLER FOR THE DELIVERABLES WITH RESPECT TO WHICH SUCH LIABILITY IS CLAIMED.
15. INDEMNIFICATION. Buyer shall defend, indemnify and hold Seller, its affiliates and their respective officers, directors, members, managers, representatives, agents and employees harmless from and against all claims, suits, demands, losses, liabilities, damages (including injury and death) and expenses (including reasonable attorneys’ fees) (collectively, “Losses”), arising out of or relating to: (a) Buyer’s or its agents provided specifications, design, structure, operation, material or method of making Deliverables (“Buyer’s Specifications”), including without limitation, any resulting violation of intellectual property or proprietary rights; (b) Buyer’s use, misuse or disposal of Deliverables or materials; (c) Buyer’s non-compliance with any Law; (d) breach of these Terms by Buyer; (e) Deliverables subjected to anything referenced in Section 13(i)-13(x); or (vi); or (f) a use or application other than or varying in any degree from the specifications and/or Seller’s instructions.
16. PATENTS. Provided Buyer has made all payments due Seller, Seller shall defend any suit brought against Buyer based upon a claim that the Deliverables infringe any United States patent issued as of the date of Seller’s quotation and shall pay any damages and costs finally awarded therein against Buyer, provided that Seller is notified promptly in writing of such suit and is given full authority, information and assistance by Buyer to defend or settle the suit. Notwithstanding anything to the contrary, Seller will have no liability to the extent that the suit is based upon: (i) modifications to any item made by or on behalf of the Buyer in a manner that causes the infringement; (ii) use of any item in combination with the Deliverables that causes the infringement; (iii) the failure of the Buyer to use corrections or enhancements to the Deliverables that are made available by Seller; (iv) Buyer’s Specifications; (v) Buyer’s distribution, marketing or use for the benefit of third parties of the Deliverables; or (vi) use not authorized under these Terms. If the Deliverables or any part thereof are deemed to infringe any such patent, Seller shall, at its expense and sole option either: (a) procure for Buyer the right to continue using said Deliverables or part; (b) replace them with non-infringing Deliverables or parts; (c) modify them so they become non-infringing; or (d) remove them and refund the purchase price for them depreciated over no more than 3 years.
17. TOOLING. In no event shall Buyer have any interest in any tools, jigs, dies, patterns, etc. (collectively, “Tooling”) which is made or obtained for the production of the Deliverables. Such Tooling shall remain the property of Seller.
18. CONFIDENTIALITY. All non-public or proprietary information of Seller, including all IP, quotations and pricing information, is confidential, solely for the use in performing hereunder and may not be disclosed, used or copied unless authorized by Seller in writing.
19. INTELLECTUAL PROPERTY. All drawings, know-how, designs, specifications, inventions, devices, developments, processes, copyrights, trademarks, patents and applications therefor, and other information or intellectual property disclosed or otherwise provided to Buyer by Seller and all rights therein (collectively, “IP”) are and will remain the property of Seller. Buyer shall have no claim to, nor ownership interest in, any IP and such information, in whatever form and any copies thereof, shall be promptly returned to Seller upon written request from Seller. Buyer acknowledges that no license or rights of any sort are granted to Buyer hereunder in respect of any IP, other than the limited right to use the Deliverables purchased from Seller.
20. EXPORT COMPLIANCE. Any items provided by Seller are controlled by the United States Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the United States Government or as otherwise authorized by U.S. Law and regulation.
21. FORCE MAJEURE. Seller shall not be liable for any delay in or failure to perform due to any event or contingency beyond its reasonable control (an event of “Force Majeure”), including acts of God, epidemics, acts of war whether declared or undeclared, blockades, labor disputes (whether of Seller’s employees or the employees of others), raw material shortages and material increases in costs of raw materials, including those material increases in costs resulting from the imposition of tariffs. In the event of Force Majeure, the time for performance will extend for such time as reasonably necessary to enable Seller to perform. Seller may, during any period of shortage due to any of the above circumstances, allocate its available supply of Deliverables among itself and its purchasers in such manner as Seller, in its sole judgement, deems fair and equitable.
22. TERMINATION. Seller shall have the right to cease work or terminate these Terms or any purchase order, in whole or in part, at any time, without liability, if: (i) Buyer breaches or defaults under these Terms or any other agreement it has with Seller; (ii) a petition under any applicable law relating to bankruptcy, insolvency, or reorganization is filed by or against Buyer; (iii) Buyer executes an assignment for benefit or creditors; (iv) a receiver is appointed for Buyer or any substantial part of its assets; or (v) Seller shall have any reasonable ground for insecurity with respect to Buyer’s ability to perform and Buyer is unable to provide Seller with adequate assurance within 10 days after written request therefor by Seller. In all cases, Seller’s rights are cumulative, are not exclusive and in addition to all other rights and remedies it may have at law or in equity. No termination shall affect any accrued rights or obligations of either party as of the effective date of such termination.
23. WAIVER. All waivers by Seller shall be in writing. Failure of Seller at any time to require Buyer’s performance of any obligation hereunder shall not affect Seller’s right to require performance of that obligation. No delay or omission in the exercise of any right, power, or remedy hereunder shall impair such right, power, or remedy or be considered to be a waiver of any default or acquiescence therein.
24. GOVERNING LAW. Any dispute arising out of or related to these Terms will be governed by and construed in accordance with the laws of the State of Illinois without regard to any rules on conflicts of laws and exclusively litigated in either (i) a state or federal court located in Cook County, Illinois, or (ii) a state or federal court located in the state of Seller’s principal place of business, at Seller’s sole discretion.
25. SEVERABILITY. The unenforceability or invalidity of any clause in these Terms shall not have an impact on the enforceability or validity any other clause in these Terms. Any unenforceable or invalid clause shall be regarded as removed from these Terms to the extent of its unenforceability and invalidity.
26. MISCELLANEOUS. Buyer shall not assign any of its rights or obligations under these Terms or any purchase order without Seller’s prior written consent. Buyer shall comply with all applicable laws. There are no third-party beneficiaries. Provisions which by their nature should survive will remain in force after any termination or expiration of any sale of Deliverables. The section headings are included solely for the convenience of the parties.