FAST DELIVERY
Enginetech M40056-065 Engine Premium Piston Ring Complete Set for Domestic and Import Engines
100% ORIGINAL AND QUALITY
EASY RETURN
- Description
- Fitment
- Warranty and Refund
- Reviews
The Enginetech M40056-065 Engine Premium Piston Ring Complete Set is designed to deliver reliable performance and precision fit for a wide range of engine rebuilds. Crafted with high-quality materials, this set ensures consistent end gaps following SAE guidelines, which helps maintain optimal compression and oil control throughout the engine's lifespan. The set includes top and second compression rings, both with a thickness of 5/64 inch, as well as a 3/16 inch oil ring, all engineered for durability and efficiency. With a ring outside diameter of 4.000 inches, these components are suitable for various domestic and import engines, making them a versatile choice for professional rebuilders and DIY enthusiasts alike. Enginetech has been a family-owned business since 1982, specializing in engine parts that meet the rigorous standards required for engine restoration and performance enhancement. Their products are engineered specifically for engine rebuilders, ensuring a precise fit and long-lasting operation. The M40056-065 set is part of Enginetech’s comprehensive product line, which includes everything from complete engine kits to individual components, supported by nationwide distribution and dedicated customer service. Whether rebuilding an engine for increased performance or restoring a stock engine to its original condition, this piston ring set provides the quality and reliability you need to achieve excellent results.
Features:
- Consistent end gaps following SAE guidelines for optimal engine performance
- Top and second compression rings with 5/64 inch thickness for durability and compression
- Oil ring with 3/16 inch thickness for effective oil control
- Ring outside diameter of 4.000 inches suitable for a variety of engines
- Engineered by Enginetech, a trusted name in high-quality engine parts since 1982
- Designed specifically for engine rebuilders and performance enthusiasts
- Compatible with both domestic and import engines for versatile application
- Part of a complete line of engine components with nationwide distribution and excellent customer support
| Top Compression Ring Thickness: 5/64 in |
| Second Compression Ring Thickness: 5/64 in |
| Oil Ring Thickness: 3/16 in |
| Ring Outside Diameter: 4.000 |
| Aaiaid Part Number: BBPTM40056-065 |
| Part Number: M40056-065 |
| 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.









