5354005-3 / 5354005-2 Continental TSIO-520-J Shield Assembly

Industry Leading 90-Day Money-Back Guarantee

You may return parts or request a replacement within 90 days of the purchase date with no penalties, no re-stocking fees, and no nonsense.
Start Here

We do not accept returns on anything marked CORE, on any Fuselage, or on anything stating "No Returns Accepted".

Our 90-day guarantee is our commitment to treating our customers honestly and fairly. Every part is carefully inspected throughout our process and several times before it goes online. Most items are sold as-removed, just as they came off the aircraft. These parts are not functionally tested. What we do provide is clear photos, full traceability when available, pricing that reflects the as-removed condition, and a no-nonsense 90-day return window.

We do everything we can to get it right, and if something slips through, we stand behind it with a 90-day return policy that’s unmatched in the aircraft parts industry.

If it’s past 90 days, we may decline the return, or we may offer a return with a restocking fee.
We’ll always aim to be fair. Every return gets a human review, not a robot reply.

Once your part makes it back to us, refunds are typically processed within a week, often sooner. Return shipping is the buyer's responsibility, unless the return is due to our mistake (like receiving the wrong item). In that case, we’ll cover the shipping cost.

If you need to return an item or request a replacement, fill out the form HERE with your order number and details. We will respond quickly with instructions and next steps. Don’t ship anything back until you have completed this form, so we can process your refund without delay.

Condition Codes for BAS Part Sales Inventory

As-Removed:
Part removed from aircraft in its original, unaltered state. Most of the inventory available from BAS Part Sales is in As-Removed condition. We removed it from the aircraft in working condition and expect it to pass inspection. As-Removed items come with our 90-day Money-Back Guarantee. Read More

Core:
A non-functioning or damaged item that can be used for parts or possible repair. We DO NOT offer refunds on core items. These items are listed with "Core" in the title and typically have details in the product description related to what we found wrong with it.

Overhauled:
An as-removed item that has been sent to a shop for repair or rebuild. These items, of course, come with our 90-day money-back guarantee.

NOS - New Old Stock:
Item that is factory new but has been stored for a period of time that is usually past stock limit date. These items also come with our 90-day money-back guarantee.

Certifications & Documentation:
If an item is offered for sale with an 8130, STC, or other documentation, that detail is typically notated in the product title and the description. If it is not notated, then BAS cannot provide any certification for that item.