FAST DELIVERY
Enginetech R40056-STD Engine Cast Iron Piston Ring Complete Set for Domestic and Import Engines
100% ORIGINAL AND QUALITY
EASY RETURN
- Description
- Fitment
- Warranty and Refund
- Reviews
The Enginetech R40056-STD Engine Cast Iron Piston Ring Complete Set is designed for engine rebuilders seeking reliable and high-quality parts. Crafted from durable cast iron, these piston rings ensure a proper seal within the combustion chamber, contributing to optimal engine performance and longevity. Suitable for both domestic and import engines, this complete set includes all necessary rings to restore engine efficiency.
Each ring in this set is manufactured with precision to meet SAE guidelines, ensuring consistent end gaps for reliable operation. The set features top and second compression rings with a thickness of 5/64 inch, promoting effective compression and power output. The oil ring, at 3/16 inch thick, helps control oil consumption and reduce blow-by, maintaining cleaner emissions and smoother engine operation. The outside diameter of the rings is precisely engineered at 4.000 inches to fit standard bore sizes, making installation straightforward for experienced mechanics and DIY enthusiasts alike.
Enginetech has been family-owned and operated since 1982, specializing in high-quality engine parts that meet the needs of engine rebuilders across the country. Their parts are engineered with meticulous attention to detail, ensuring they meet or exceed industry standards for performance and durability. The R40056-STD set is ideal for those looking to restore engine compression, improve fuel efficiency, and extend engine life. Whether you are performing a rebuild or routine maintenance, these piston rings offer the reliability and performance expected from a trusted brand like Enginetech.
Invest in this complete set to ensure your engine runs smoothly and efficiently, backed by Enginetech’s reputation for quality and customer satisfaction in the engine rebuilding community.
Features:
- Consistent end gaps following SAE guidelines for reliable sealing
- Top and second compression rings with 5/64 inch thickness for optimal compression
- Oil ring with 3/16 inch thickness for effective oil control
- Ring outside diameter precisely engineered at 4.000 inches to fit standard bores
- High-quality cast iron construction for durability and longevity
- Designed to suit a wide range of domestic and import engines
- Complete set includes all necessary piston rings for engine rebuilding
- Engineered specifically for professional engine rebuilders and DIY enthusiasts
| 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: BBPTR40056-STD |
| Part Number: R40056-STD |
| 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.









