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Main ST Collective AN Caps & Plugs are designed to protect AN/JIC 37° flare fittings from dirt, debris, moisture, and contamination during storage, transport, fabrication, or assembly. These threaded protective caps and plugs are ideal for automotive, racing, hydraulic, and fabrication environments where keeping fluid systems clean is critical.
Available in multiple AN sizes and pack quantities, these protective fittings are perfect for race shops, fabrication facilities, professional technicians, and DIY enthusiasts alike. The bright red finish improves visibility during assembly and organization while the knurled exterior allows for quick installation and removal.
Whether you're protecting fuel lines, brake fittings, oil system components, or hydraulic plumbing, Main ST Collective AN Caps & Plugs help maintain clean and reliable systems throughout your build process.
Select your desired AN size and pack quantity from the dropdown menu before checkout.
Main ST Collective is the in-house hardware and parts brand of Main Street Eshop, built for automotive enthusiasts, racers, fabricators, and professional technicians. Our products are engineered to deliver dependable OEM-style quality with real-world performance in mind.
From race car plumbing and fabrication hardware to shop essentials and automotive fasteners, Main ST Collective products are designed to keep projects moving in the garage, fabrication shop, or at the track.
Main Street Eshop is your trusted source for automotive parts, race hardware, shop supplies, and performance fabrication components. Serving enthusiasts, race teams, mechanics, and builders nationwide, Main Street Eshop provides quality products for street, off-road, drift, drag racing, road racing, and custom fabrication applications.
You will receive the selected quantity of Main ST Collective AN Caps or AN Plugs in your chosen AN size and pack quantity.
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
