Upgrade your electric RC car with the High-Performance 540-Size Motor Spring from Integy. Weighing 150 g, this robust spring is engineered to improve durability and power delivery for 540-size motors. Part number 11.ZF04 identifies this essential component.
New and available in our special sales category at a reduced price. Each piece is sold AS-IS, offering a genuine and distinctive component for your collection. Ideal for both collectors and hobbyists seeking reliability and longevity in model car parts.
Key features and benefits include compatibility with electric RC cars, trucks, and motorcycles that use 540-size motors; premium construction for longer life; improves durability, torque stability, and throttle response under load. This upgrade helps extend run time and enhances overall performance for enthusiasts aged 14 years and up.
đź›’ Q: How do I get items shipped together in one package?
To have multiple items shipped in the same package, you must add all items to your cart first and complete checkout in one single transaction. Orders placed separately (even minutes apart) are processed separately and may ship separately.
đźšš Q: Do you offer combined shipping discounts after I ordered?
We do not offer manual combined shipping discounts after checkout is completed. Any available shipping discounts or promotional offers are automatically calculated by eBay at the time of purchase. We are unable to adjust or refund shipping charges once payment has been made.
📦 Q: Can you refund shipping if I already placed multiple separate orders?
Unfortunately, no. Once checkout has been completed, we cannot modify, combine, or refund shipping charges. Please make sure all desired items are added to your cart before paying.
🌎 Q: How does International / Puerto Rico shipping work?
International and Puerto Rico (PR) orders may be processed through what is called the eBay Global Shipping Program (or eBay International Shipping). Under this program, we ship your order to an eBay domestic processing center (not to you directly). From there, eBay then handles the rest of transit – they handle the export, international shipping, customs clearance, import duties, and final delivery to your doorstep. Note that for this program, the shipping cost may be higher because it is an all-inclusive service provided directly by eBay, which includes import taxes and customs processing.
It is important to note that under the eBay Global Shipping Program, the seller is not the party directly shipping the international package to you. We do not control international shipping rates, customs charges, or import fees. We cannot combine international shipments once eBay processes them.
If you have concerns about international shipping costs, duties, or fees, please contact an eBay representative before placing your order to review the total charges.
đźšš Q: Are there refunds on the shipping charges if the item arrives late?
We do not refund shipping charges if the delivery is delayed; delivery timing is handled by the shipping carrier (USPS/UPS), not us. Once the package is accepted by the shipper and is in transit, any delays or changes in delivery dates are outside our control. USPS/UPS does not refund the shipping costs for a delayed shipment.
🏠Q: Can I change my shipping address after checkout?
No. For security and seller protection reasons, we only ship to the address entered during eBay checkout. We cannot change, edit, or override the shipping address after the order has been placed. Please double-check your address carefully before completing payment.
🎨 Q: Will the item color match the photos?
We photograph our products as accurately as possible. The actual part color will closely match what you see in the listing photos. However, slight variations may occur due to lighting, screen settings, and manufacturing tolerances. Minor shade differences between production batches are normal. We ship the color exactly as the part# was ordered based on the listing purchased.
🔄 Q: Can I request a color change after checkout?
No. We ship the item color according to the listing and variation selected at checkout. Please ensure you select the correct color before completing your purchase.
We appreciate your understanding and cooperation. If you have any questions before purchasing, feel free to message us — we are happy to assist!
TRUSTED IN THE HOBBY FOR OVER 30 YEARS!
INTEGY INC. ("Integy") provides hobby products to hobby enthusiasts worldwide. The company is headquartered in California, USA and has production lines in China, Taiwan, Korea and Japan. INTEGY INC. started in 1993, currently has more than 25,000 products with customers in more than 107 countries/territories.
FAST SHIPPING FROM CALIFORNIA U.S.A.
We ship from California, USA. Most orders are shipped within 48 hours. 99% of orders arrive within 5 to 8 business days, 95% of the packages arrive within 14 business days. We pride ourselves in exceptional customer service and ship orders out quickly.
FAMILY-OWNED BUSINESS
INTEGY is owned and operated by a family of relatives and friends. We work hard to bring you a wide range of attractive products – some are “hard to find” - at prices so low that at times, you may feel like a wholesale buyer!
COMPETITIVE PRICING
Our low, low prices mean that our profit margins are not as hefty as many might imagine. We are humble and try to do more with less. Our positive mindset and family spirit naturally leads to open and honest relationships with our customers. We put our efforts into building trust by operating with integrity and customer focus.
We look forward to having you as our valued customer so you can enjoy the world of INTEGY, where a magical force keeps prices low and quality high!
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COMBINED SHIPPING
We offer a combined shipping discount on eBay when multiple items are paid together in the same transaction. We do not offer manual combined shipping discounts after checkout is completed. Any available shipping discounts or promotional offers are automatically calculated by eBay at the time of purchase. We are unable to adjust or refund shipping charges once payment has been made. To have multiple items shipped in the same package, you must add all items to your cart first and complete checkout in one single transaction. Orders placed separately (even minutes apart) are processed separately and may ship separately.
SHIPPING DETAILS
INTEGY ships to all 50 States within the U.S. and eBay Global International service handles all oversea destinations. Domestic orders ship from California, U.S.A. International orders are first shipped to the eBay processing center in the USA and then sent to your country with a different tracking number provided by eBay. All orders submitted by 7:00 AM (PST) between Monday to Thursday (excluding holidays) should ship out within 72 hours. We do not ship any orders on weekends; all orders submitted on Friday-Sunday will begin processing the following Monday (excluding holidays). Thank you!
ORDER ACCURACY
Please review the items you are purchasing, quantities placed, and shipping address for accuracy. Orders can be cancelled for a small amount of time using the function in the eBay “Purchase History” section of your account. However, for security and anti-fraud purposes, ONCE AN EBAY PURCHASE IS PROCESSING IT CAN NO LONGER BE CANCELLED. If you purchased an item by mistake, you have 30 days to return the items per our 30-day Return Policy.
AVAILABLE STOCK
In rare cases, we may run out of an item while your purchase is processing. This could prevent the fulfillment of your item or items, and in these rare cases we will notify the customer for alternate solutions or provide the customer with a full refund for the unshipped items.
CONTACT US FIRST FOR RETURNS
We hope you will love your purchase, however if you need to return it, PLEASE CONTACT US FIRST! Filing a case with PayPal or a “not as described” claim will limit customer options due to eBay’s internal automations and policies. INTEGY offers a simple 30-DAY RETURNS POLICY for all brand new, unopened/unused items. All returns will receive a full refund for the price of the item minus a 10% restocking fee. Shipping and handling charges are not refunded.
ANODIZED COLOR NOTE
Colors shown in product photos are as close to possible to the actual item; color matching between parts is not guaranteed. Please refer to the product photos to see the exact shade of color that will be shipped. We try to show the actual color of the parts in our product photos, but accuracy may vary dependent on device, monitor settings, etc. We do not guarantee that the color of our parts will be an exact match with other INTEGY products and/or OEM manufacturer's product colors.
30-DAY LIMITED WARRANTY
INTEGY offers a 30-day Limited Warranty Policy to the original purchaser for the repair or replacement of Integy-branded products due to DEFECTS IN MATERIALS AND/OR WORKMANSHIP ONLY (this means products that are manufactured wrong such as missing threads, non-fitting tool tips, or parts that arrived to the customer that show damage are covered – not parts damaged after being used). The limited warranty only applies to Integy-branded products.
Our limited warranty is a repair or exchange on a send-first basis. The customer is responsible for all shipping charges of returned items and cost to insure the shipment or accept the risk of loss or damage during shipment. All items sent to us will be subject to a warranty inspection before any action is taken. We do not accept just photos for warranty claims. Accepted warranties will be repaired or replaced at our expense. Our warranty exchange only applies to identical components. Item substitutions or store credit may be offered if the original item is discontinued or out of stock, at our discretion.
We do not issue any refunds for warranty claims. Warranties are processed Monday-Friday usually within 3-5 business days of receipt. All Warranty returns will be shipped to the original order shipping address we have on file. If a warranty is denied, customer will be contacted about a Replacement Plan offer and/or other possible resolutions.
ITEMS NOT ELIGIBLE FOR WARRANTY
Items that are not covered by our warranty policy are listed below:
• Items that show signs of installation, assembly, or modification
• Items worn down through normal usage
• Cosmetic damage once an item is being used
• Chemical or liquid items such as shock oils, diff fluids, grease, etc.
• Opened box ARTR / RTR vehicles
• Items sent beyond 30-days from the order date
• Items listed as “one of a kind" or "scratch/dent”
• Tool tips broken during usage
• Items previously repaired/modified by the user
• Items attempted to be repaired/modified by the user
• Variations in color between different part numbers
• Third party branded products
3RD PARTY BRANDED PRODUCTS
Products sold through this website that do not bear the INTEGY brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products (including products that are not Integy-branded but packaged or sold with Integy products). Please contact the manufacturer directly for any after-sales technical support and/or manufacturer warranty service.
In some cases we may be able to offer limited repair/replacement services for 3rd-party branded items (subject to availability).
HOW TO SUBMIT A WARRANTY CLAIM
If your INTEGY-branded item qualifies for a warranty claim based on the guidelines above, please contact us for further instructions.
BASIC PREP BEFORE INSTALLATION
All INTEGY products will require some prep out of the package; some items are partially assembled for packaging purposes only, and may require standard prep before installation and usage, such as shimming for proper alignment, checking tightness of all components and fasteners, installing your own shock oil, anti-seize, thread lock, or grease. Do not just install the item out of the package; check, adjust, and set/reset all new items when taken out of the package. Remember to check the mfg. web site for product compatibility when ordering multiple items.
INSTRUCTIONS/INCLUDED HARDWARE
INTEGY products are designed for experienced RC enthusiasts. Unless included with the product itself, most of our products do not include instructions. Not all products include installation hardware; due to factory supply delays beyond our control, certain products may appear slightly different from what is originally shown in the product photos. Any alternates will be compatible and will not affect the functionality of the product. Parts are for specified usage only. We do not guarantee product compatibility with other aftermarket branded products.
The customer is responsible for any product assembly/disassembly, any set-up and adjustment, and periodic maintenance.
TECH SUPPORT FOR INTEGY PRODUCTS
If you have product questions, need assistance with a purchased product, and for any other general issues regarding INTEGY-branded products please contact us so we can direct you to our Help Desk (per eBay policy we cannot link directly to the Help Desk). Tech support through our Help Desk is available between 11a-4p during regular business hours (PST). We are closed on weekends and major holidays. We do not provide telephone or in-person customer service.
3RD PARTY-BRANDED CUSTOMER SUPPORT
Products sold by INTEGY that do not bear the INTEGY brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products (including products that are not INTEGY-branded but packaged or sold with INTEGY products). We can only offer limited repair/replacement services for these 3rd-party branded items (subject to availability). Please contact the manufacturer directly for any after-sales technical support and/or manufacturer warranty service.