FIRST AMENDMENT TO CREDIT AGREEMENT

Exhibit 10.78

FIRST AMENDMENT TO CREDIT AGREEMENT

THIS FIRST AMENDMENT TO CREDIT AGREEMENT (this “Amendment”), dated as of March 8, 2013, is entered into by and among U.S. AUTO PARTS NETWORK, INC., a Delaware corporation (“Company”), PARTSBIN, INC., a Delaware corporation (“PartsBin”), LOCAL BODY SHOPS, INC., a Delaware corporation (“Local Body Shops”), PRIVATE LABEL PARTS, INC., a Delaware corporation (“Private Label Parts”), WHITNEY AUTOMOTIVE GROUP, INC., a Delaware corporation (“Whitney Auto”, and together with the Company, PartsBin, Local Body Shops and Private Label Parts, collectively, “Borrowers” and each individually a “Borrower”), the other Loan Parties party hereto, the Lenders (as defined below) party hereto, and JPMORGAN CHASE BANK, N.A., as administrative agent for the Lenders (in such capacity, “Administrative Agent”).

RECITALS

AGREEMENT

NOW, THEREFORE, in consideration of the foregoing and the mutual covenants herein contained, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereby agree as follows:

“(m) unless otherwise agreed to by Administrative Agent, by no later than Wednesday of each week for each week ending on or prior to April 15, 2013, a projected 13 week cash flow report for the immediately following 13 week period, and a cash flow report for the week most recently ended together with a comparison to the previously delivered forecast, in each case, in form reasonably satisfactory to Administrative Agent;”

“(r) the capitalized amount of the remaining lease or similar payments under the relevant lease or other applicable agreement or instrument that would appear on a balance sheet of such Person as of such date in accordance with GAAP arising from the any sale and leaseback transaction that is permitted by Section 6.06 so long as the Administrative Agent receives a Collateral Access Agreement with respect to the property that is the subject of such sale and leaseback transaction within 60 days after the consummation of such transaction (unless waived by the Administrative Agent in its sole discretion); and”

“Sale and Leaseback Transactions. No Loan Party will, nor will it permit any Subsidiary to, enter into any arrangement, directly or indirectly, whereby it shall sell or transfer any property, real or personal, used or useful in its business, whether now owned or hereafter acquired, and thereafter rent or lease such property or other property that it intends to use for substantially the same purpose or purposes as the property sold or transferred (such a transaction, a “sale and leaseback”), except for (a) any such sale and leaseback of any fixed or capital assets by any Borrower or any Subsidiary that is made for cash consideration in an amount not less than the fair value of such fixed or capital asset and is consummated within 90 days after such Borrower or any Subsidiary acquires or completes the construction of such fixed or capital asset, and (b) such other sale and leasebacks as are consummated on terms and conditions satisfactory to the Administrative Agent and the Lenders in their Permitted Discretion so long as no Event of Default has occurred and is continuing at the time of consummation of such sale and leaseback or would result thereform.”

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IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed and delivered by their duly authorized officers as of the day and year first above written.

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