Exhibit 3

Joint Filing Agreement

In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with each other on behalf of each of them of all filings on any Form 3, 4 or 5 or Schedule 13D or 13G, and any and all amendments thereto and any other document relating thereto (collectively, the “Filings”), with respect to the Shares of Wesco Aircraft Holdings, Inc. beneficially owned by each of them. Each of them is responsible for the timely filing of such Filings and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making such Filings, unless such person knows or has reason to believe that such information is inaccurate. This Joint Filing Agreement shall be included as an exhibit to such Filings.

[Signature Page Follows]

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Dated: August 19, 2019

PLATINUM EQUITY CAPITAL PARTNERS INTERNATIONAL IV (CAYMAN), L.P.
By:	Platinum Equity Partners International IV (Cayman), L.P.
Its:	General Partner
By:	Platinum Equity Investment Holdings IV (Cayman), LLC
Its:	General Partner
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

PLATINUM EQUITY PARTNERS INTERNATIONAL IV (CAYMAN), L.P.
By:	Platinum Equity Investment Holdings IV (Cayman), LLC
Its:	General Partner
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

PLATINUM EQUITY INVESETMENT HOLDINGS IV (CAYMAN), LLC
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

PLATINUM EQUITY INVESTMENT HOLDINGS IV, LLC
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

PLATINUM EQUITY INVESTMENT HOLDINGS IV MANAGER, LLC
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

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PLATINUM EQUITY INVESTCO, L.P.
By:	Platinum Equity Investment Holdings IC (Cayman), LLC
Its:	General Partner
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

PLATINUM EQUITY INVESTMENT HOLDINGS IC (CAYMAN), LLC
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

PLATINUM INVESTCO (CAYMAN), LLC
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

PLATINUM EQUITY INVESTMENT HOLDINGS, LLC
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

PLATINUM EQUITY, LLC
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

TOM GORES
By:	/s/ Mary Ann Sigler
	Name: Mary Ann Sigler
	Title:   Attorney-in-Fact

WOLVERINE HOLDINGS CORPORATION
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

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WOLVERINE INTERMEDIATE HOLDING CORPORATION
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary

WOLVERINE INTERMEDIATE HOLDING II CORPORATION
By:	/s/ Justin Maroldi
	Name: Justin Maroldi
	Title:   Assistant Secretary