1. Product Overview

A set of four blue-anodized aluminum shock caps, designed for Traxxas Ultra Shocks.
Product Description
The Traxxas 3767A Blue-Anodized Aluminum Shock Caps are designed to enhance the durability and appearance of your Traxxas model. These machined aluminum caps are an ideal accessory for all Traxxas models equipped with Ultra Shocks. They are engineered to fit precisely and maintain a tight seal, ensuring consistent performance through various terrains and impacts. The caps install quickly and provide a distinct anodized blue finish, adding style to your vehicle. This product serves as a direct replacement hardware for use on compatible Traxxas vehicles.
Key Features
- Increased durability with anodized aluminum construction.
- Machined blue anodized aluminum caps (set of 4).
- Designed for precise fit and secure hold, even after jumps and impacts.
- Compatible with all Traxxas Ultra Shocks.
2. What's in the Box
Each genuine Traxxas accessory package includes:
- Four (4) Traxxas 3767A Blue-Anodized Aluminum Shock Caps.

The product packaging for Traxxas 3767A shock caps, showing the part number, UPC, and descriptions in English, French, Spanish, and German, along with contact information.
3. Compatibility
These shock caps are specifically designed for all Traxxas models equipped with Ultra Shocks. Compatible vehicle series include, but are not limited to:
- Traxxas Slash series
- Traxxas Bandit series
- Traxxas Nitro Sport series
- Traxxas Stampede series
- Traxxas Rustler series
- All Traxxas Maxx trucks
Always consult your vehicle's user manual for exact parts listings and compatibility.
4. Setup & Installation
Installation of the Traxxas 3767A Blue-Anodized Aluminum Shock Caps requires basic tools and familiarity with your vehicle's shock assembly. Always consult your vehicle's specific user manual for detailed instructions on disassembling and reassembling your Ultra Shocks.
Installation Steps:
- Preparation: Gather necessary tools such as a small screwdriver, shock oil (if refilling), and a clean cloth. Ensure your workspace is clean and organized.
- Disassembly: Carefully remove the existing shock caps from your Ultra Shocks. Be mindful of shock oil and internal components like O-rings and diaphragms.
- Inspection: Inspect the shock shafts, O-rings, and other internal components for any signs of wear, damage, or deformation. Replace any worn parts to ensure optimal performance.
- Filling (if applicable): If you are refilling or replacing shock oil, ensure the proper oil weight and fill level are used according to your vehicle's specifications. Avoid air bubbles in the shock fluid.
- Installation: Place the new Traxxas 3767A aluminum shock caps onto the shock bodies. Ensure they are seated correctly and tighten them securely. Do not overtighten, as this can damage the threads or the cap itself.
- Testing: After installation, gently compress and extend the shocks several times to check for smooth operation, proper damping, and to ensure there are no oil leaks.
5. Operating Instructions
Once installed, the Traxxas 3767A Aluminum Shock Caps function as direct replacements for the stock plastic caps, providing enhanced durability and a secure seal for your Ultra Shocks during vehicle operation. They are designed to withstand impacts and prevent oil leakage under normal operating conditions, contributing to consistent suspension performance.
6. Maintenance
Regular inspection and maintenance of your shock caps and shocks are recommended to ensure optimal performance and longevity of your Traxxas vehicle.
- Visual Inspection: Periodically check the aluminum shock caps for any signs of damage, such as dents, cracks, or a loose fit.
- Leak Detection: Look for any oil leakage around the shock caps or shock bodies, which may indicate a compromised seal or damaged O-rings.
- Cleaning: Keep the shock caps and surrounding areas clean from dirt, mud, and debris. This helps prevent abrasive wear on O-rings and threads.
- O-Ring Replacement: If oil leaks are observed, it is often necessary to replace the internal O-rings as part of routine shock maintenance. Refer to your vehicle's manual for the correct O-ring sizes and replacement procedures.
7. Troubleshooting
Here are some common issues and their potential solutions related to shock caps:
- Shock Cap Popping Off:
- Ensure the shock caps are tightened securely but not excessively.
- Verify that the internal O-rings are correctly seated and not damaged.
- Over-pressurized shocks (due to too much oil or air) or extreme impacts can sometimes cause caps to dislodge. Check shock oil levels and consider softer springs if this is a recurring issue.
- Oil Leakage:
- Check for proper seating of the shock cap on the shock body.
- Inspect the condition of the internal O-rings. Replace worn, cracked, or flattened O-rings if necessary.
- Ensure the shock shaft is not bent or scratched, as this can also lead to leaks.
8. Specifications
| Brand | Traxxas |
| Model Number | TRA3767A |
| OEM Part Number | 3767A |
| Material | Aluminum |
| Exterior Finish | Anodized Blue |
| Item Dimensions (L x W x H) | 3.25 x 0.63 x 5.88 inches |
| Item Weight | 1.13 ounces (0.03 Kilograms) |
| Quantity | Set of Four (4) |
| Compatibility | Traxxas Ultra Shocks |
| UPC | 020334376756 |
| GTIN | 00020334376756 |
| Date First Available | December 4, 2009 |
| Manufacturer Recommended Age | 15 years and up |
9. Warranty Information
For specific warranty information regarding the Traxxas 3767A Blue-Anodized Aluminum Shock Caps, please refer to the official Traxxas website or contact Traxxas customer support directly. Warranty terms and conditions may vary and are subject to the manufacturer's policies at the time of purchase.
10. Support & Contact
For technical assistance or questions regarding your Traxxas products, please use the following contact information:
- Phone: +1-972-265-8000
- Toll-Free (U.S. residents only): 1-888-TRAXXAS
- Email: support@Traxxas.com
- Website: Traxxas.com
- Address: Traxxas, 1100 Klein Road, Plano, Texas 75074, USA
Copyright © Traxxas 2012. All rights reserved. Product manufactured in Taiwan.





