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Enginetech M39458-030 Engine Premium Piston Ring Complete Set for Optimal Engine Performance
100% ORIGINAL AND QUALITY
EASY RETURN
- Description
- Fitment
- Warranty and Refund
- Reviews
The Enginetech M39458-030 Engine Premium Piston Ring Complete Set is designed to deliver reliable sealing and enhanced engine efficiency. Crafted with precision, this set includes high-quality piston rings that meet strict SAE guidelines, ensuring consistent end gaps for optimal compression and oil control. The set features a top compression ring with a thickness of 3/32 inch, a second compression ring at 5/64 inch, and an oil ring measuring 3/16 inch, all engineered to provide durable performance in both import and domestic engines. This comprehensive set is suitable for a wide range of engine rebuilds, offering a perfect fit with a ring outside diameter of 3.938 inches.
Enginetech, a family-owned company since 1982, specializes in manufacturing engine parts tailored specifically for engine rebuilders. Their parts are known for their quality, precision, and consistency, making them a trusted choice for professional mechanics and DIY enthusiasts alike. The M39458-030 set is designed to meet the demanding needs of engine rebuilding projects, reducing the risk of leaks and ensuring long-lasting performance. Whether you're restoring a classic engine or performing routine maintenance, this piston ring set provides the reliability and precision you require.
Each component in this set is engineered for perfect fitment and durability, contributing to improved engine compression, reduced oil consumption, and overall smoother operation. With easy installation and adherence to industry standards, the Enginetech M39458-030 piston rings are an excellent choice for those seeking quality parts backed by years of expertise and a commitment to customer satisfaction. Trust Enginetech to supply the essential components needed for a successful engine rebuild, ensuring your engine performs at its best for miles to come.
Features:
- Top compression ring thickness: 3/32 inch for effective sealing
- Second compression ring thickness: 5/64 inch for durability
- Oil ring thickness: 3/16 inch for optimal oil control
- Ring outside diameter: 3.938 inches for precise fit
- Engine rebuild quality: Designed specifically for professional and DIY engine rebuilders
- Trusted brand: Enginetech, a family-owned company since 1982
| Top Compression Ring Thickness: 3/32 in |
| Second Compression Ring Thickness: 5/64 in |
| Oil Ring Thickness: 3/16 in |
| Ring Outside Diameter: 3.938 |
| Aaiaid Part Number: BBPTM39458-030 |
| Part Number: M39458-030 |
| Brand Aaia: BBPT |
Returns
30-Day Money-Back Guarantee
We want you to be completely satisfied with your purchase! If you are not happy for any reason, you may return the item within 30 days for a refund, minus shipping fees, provided that: The part is brand new, uninstalled, and undamaged in any way.
To initiate a return, please contact us or email support@mizumoauto.com for a Return Authorization Number (RMA) and the return shipping address. Returns without an RMA number will be refused and returned to you at your expense.
Return Requirements:
- Items must be securely packed in the original manufacturer's packaging.
- All original materials must be included, such as hardware, manuals, protective caps, wrapping, and instructions.
- You must obtain and retain the tracking number for your return.
Non-Returnable Items:
- Piston rings, main bearings, and rod bearings are non-returnable if the manufacturer’s seal or shrink-wrapped plastic has been opened. No exceptions—this ensures the integrity of the parts you receive.
We are not responsible for lost or damaged returns. If your return is lost or damaged during shipping, a refund cannot be issued, as the item cannot be resold or returned to the supplier. Please file a claim directly with your shipping carrier for reimbursement.
Refunds are processed within 1-2 business days after we receive and inspect the returned item. Please allow this processing time before inquiring about your refund status.
Warranty
Mizumo Auto provides a 90-day Limited Warranty against defects in workmanship and materials under normal service conditions, effective from the original delivery date.
This warranty is non-transferable and applies only to the original purchaser. Coverage is limited to the replacement or refund of defective products.
Exclusions:
The warranty does not cover labor costs, damage resulting from accidents, misuse, alterations, or unauthorized modifications, as well as additional expenses such as towing, fluids, oils, car rentals, and any other parts not included in the original purchase.
Warranty Claims Process:
- All warranty claims must be pre-authorized and returned prepaid to Mizumo Auto for inspection and approval.
- No exchanges will be made for products that have been damaged, misused, or improperly installed. We strongly recommend professional installation.
- The buyer assumes all risk of damage resulting from improper installation.
All disputes related to transactions shall be resolved by a court of competent jurisdiction in Los Angeles County, California.
Shipping
We offer Free UPS Ground or USPS Ground Advantage shipping within the continental U.S. (48 states).
Shipping to Other Locations:
A delivery surcharge applies to shipments to: Alaska, Hawaii, Puerto Rico, U.S. territories, APO/FPO addresses, Canada, and international destinations.
Order Processing & Tracking:
- Orders are shipped Monday through Friday, excluding holidays.
- Orders placed before 3:00 PM PST will ship the same day, unless unexpected delays occur.
- A tracking number will be emailed within one business day after shipping.
If you do not receive a tracking number, please:
- Check your spam/junk folder.
- If it's not there, contact us via phone or eBay message for assistance.
International Orders:
Import duties, taxes, and brokerage fees are not included in the shipping fee. Please check with your shipping carrier and local customs office regarding any applicable fees before placing your order.









