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- Description
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Engine Rocker Arm Nut - 5/16 x 24 - 100 Pack
The Enginetech ERM659 Engine Rocker Arm Nut is designed to provide secure and reliable fastening for your engine's rocker arms. Crafted specifically for engine rebuilders and enthusiasts, this high-quality nut ensures proper valve train operation by eliminating gaps that can cause performance issues. Its precise 5/16 x 24 thread size makes it compatible with a wide range of domestic and import engines, offering versatility for various rebuild projects. Manufactured by Enginetech, a trusted name in engine components since 1982, this nut is engineered for durability and consistent performance in demanding engine environments.
This 100-pack of rocker arm nuts is ideal for professional engine builders and DIY enthusiasts looking to stock up on reliable components. The nuts feature a robust construction that withstands high stress and heat, contributing to the longevity and efficiency of your engine. Designed with precision, these nuts help maintain optimal valve train clearance, which is critical for engine efficiency and power output. Whether you're assembling a new engine or replacing worn parts, the Enginetech ERM659 nuts provide the quality and dependability you need.
Engine rebuilds and repairs require components that meet strict quality standards, and Enginetech delivers with this complete set of rocker arm nuts. By choosing this product, you ensure your engine maintains proper valve operation, reducing the risk of performance loss or damage over time. Trust in Enginetech's extensive experience and commitment to quality to keep your engine running smoothly and efficiently.
Features:
- High-quality 5/16 x 24 threaded rocker arm nut designed for secure valve train fastening
- Manufactured by Enginetech, a trusted brand specializing in engine components since 1982
- Pack of 100 nuts suitable for professional engine rebuilds and repairs
- Engineered for durability to withstand high stress, heat, and vibration
- Precisely machined to ensure proper fit and optimal valve train clearance
| Aaiaid Part Number: BBPTERM659 |
| Part Number: ERM659 |
| 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.









