Power Wheels HHP26 Soundbox with Battery Cover 3900-8380

Replace the damaged or missing sound unit on your child’s ride-on toy with this Power Wheels HHP26 soundbox with battery cover 3900-8380, designed for compatible Fisher-Price Thomas ride-on models. This replacement part helps restore the original soundbox area while keeping the battery compartment properly covered.

It is a practical choice when the original soundbox cover is cracked, loose, missing, or no longer fitting correctly. This Power Wheels soundbox replacement is made for selected HHP26 Thomas ride-on toys, helping maintain the vehicle’s original look and play experience.

Mattel lists HHP26 as the Power Wheels Thomas & Friends Thomas with Track model and notes that the soundbox uses 1 AA alkaline battery, so buyers should match the model and part number before ordering.

Key Features
✓ Replacement soundbox with battery cover
✓ Part number: 3900-8380
✓ Designed for compatible HHP26 Thomas ride-on toys
✓ Helps replace damaged, missing, or loose soundbox parts
✓ Supports the original dashboard/body appearance
✓ Suitable for selected Fisher-Price Power Wheels Thomas models