SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934
(Amendment No. 51)*

Icahn Enterprises L.P.
(Name of Issuer)

Depositary Units Representing Limited Partner Interests
(Title of Class of Securities)

451100 10 1
(CUSIP Number)

Jesse Lynn, Esq.
Icahn Associates LLC
767 Fifth Avenue, 47th Floor
New York, New York 10153
(212) 702-4300
(Name, Address and Telephone Number of Person Authorized to
Receive Notices and Communications)

September 18, 2018
(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because Section 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box / /.

NOTE: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Section 240.13d-7(b) for other parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 451100 10 1

1. NAME OF REPORTING PERSON
CCI Onshore LLC

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) /x/
(b) / /

3 SEC USE ONLY

4 SOURCE OF FUNDS
Not applicable.

5
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /

6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7 SOLE VOTING POWER
39,758,292

8 SHARED VOTING POWER
0

9 SOLE DISPOSITIVE POWER
39,758,292

10 SHARED DISPOSITIVE POWER
0

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
39,758,292

12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES/ /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
21.3%

14 TYPE OF REPORTING PERSON
OO
2

SCHEDULE 13D

CUSIP No. 451100 10 1

1 NAME OF REPORTING PERSON
Gascon Partners

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) /x/
(b) / /

3 SEC USE ONLY

4 SOURCE OF FUNDS
Not applicable.

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
 ITEMS 2(d) or 2(e)  / /

6 CITIZENSHIP OR PLACE OF ORGANIZATION
New York

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7 SOLE VOTING POWER
23,414,492

8 SHARED VOTING POWER
0

9 SOLE DISPOSITIVE POWER
23,414,492

10 SHARED DISPOSITIVE POWER
0

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
23,414,492

12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES/ /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
12.6%

14 TYPE OF REPORTING PERSON
PN
3

SCHEDULE 13D

CUSIP No. 451100 10 1

1 NAME OF REPORTING PERSON
High Coast Limited Partnership

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) /x/
(b) / /

3 SEC USE ONLY

4 SOURCE OF FUNDS
Not applicable.

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
 ITEMS 2(d) or 2(e)  / /

6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7 SOLE VOTING POWER
82,152,341

8 SHARED VOTING POWER
39,758,292

9 SOLE DISPOSITIVE POWER
82,152,341

10 SHARED DISPOSITIVE POWER
39,758,292

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
121,910,633

12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES/ /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
65.3%

14 TYPE OF REPORTING PERSON
PN
4

SCHEDULE 13D

CUSIP No. 451100 10 1

1 NAME OF REPORTING PERSON
Highcrest Investors LLC

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) /x/
(b)  / /

3 SEC USE ONLY

4 SOURCE OF FUNDS
Not applicable.

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
 ITEMS 2(d) or 2(e)  / /

6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7 SOLE VOTING POWER
19,110,180

8 SHARED VOTING POWER
0

9 SOLE DISPOSITIVE POWER
19,110,180

10 SHARED DISPOSITIVE POWER
0

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
19,110,180

12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES/ /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
10.2%

14 TYPE OF REPORTING PERSON
CO
5

SCHEDULE 13D

CUSIP No. 451100 10 1

1 NAME OF REPORTING PERSON
Thornwood Associates Limited Partnership

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) /x/
(b) / /

3 SEC USE ONLY

4 SOURCE OF FUNDS
Not applicable.

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
 ITEMS 2(d) or 2(e) / /

6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7 SOLE VOTING POWER
6,358,495

8 SHARED VOTING POWER
0

9 SOLE DISPOSITIVE POWER
6,358,495

10 SHARED DISPOSITIVE POWER
0

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
6,358,495

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
3.4%

14 TYPE OF REPORTING PERSON
PN
6

SCHEDULE 13D

CUSIP No. 451100 10 1

1 NAME OF REPORTING PERSON
Barberry Corp.

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) /x/
(b) / /

3 SEC USE ONLY

4 SOURCE OF FUNDS
Not applicable.

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
 ITEMS 2(d) or 2(e)  / /

6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7 SOLE VOTING POWER
0

8 SHARED VOTING POWER
6,358,495

9 SOLE DISPOSITIVE POWER
0

10 SHARED DISPOSITIVE POWER
6,358,495

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
6,358,495

12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES/ /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
3.4%

14 TYPE OF REPORTING PERSON
CO

7

SCHEDULE 13D

CUSIP No. 451100 10 1

1 NAME OF REPORTING PERSON
Starfire Holding Corporation

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) /x/
(b) / /

3 SEC USE ONLY

4 SOURCE OF FUNDS
Not applicable.

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
 ITEMS 2(d) or 2(e)  / /

6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7 SOLE VOTING POWER
0

8 SHARED VOTING POWER
19,110,180

9 SOLE DISPOSITIVE POWER
0

10 SHARED DISPOSITIVE POWER
19,110,180

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
19,110,180

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
 SHARES / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
10.2%

14 TYPE OF REPORTING PERSON
CO
8

SCHEDULE 13D

CUSIP No. 451100 10 1

1 NAME OF REPORTING PERSON
Little Meadow Corp.

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)  /x/
(b) / /

3 SEC USE ONLY

4 SOURCE OF FUNDS
Not applicable.

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
 ITEMS 2(d) or 2(e) / /

6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7 SOLE VOTING POWER
0

8 SHARED VOTING POWER
145,325,125

9 SOLE DISPOSITIVE POWER
0

10 SHARED DISPOSITIVE POWER
145,325,125

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
145,325,125

12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES/ /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
77.9%

14 TYPE OF REPORTING PERSON
CO
9

SCHEDULE 13D

CUSIP No. 451100 10 1

1 NAME OF REPORTING PERSON
Carl C. Icahn

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) /x/
(b) / /

3 SEC USE ONLY

4 SOURCE OF FUNDS
Not applicable.

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
 ITEMS 2(d) or 2(e) / /

6 CITIZENSHIP OR PLACE OF ORGANIZATION
United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7 SOLE VOTING POWER
0

8 SHARED VOTING POWER
170,793,800

9 SOLE DISPOSITIVE POWER
0

10 SHARED DISPOSITIVE POWER
170,793,800

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
170,793,800

12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES/ /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
91.5%

14 TYPE OF REPORTING PERSON
IN
10

SCHEDULE 13D

The Schedule 13D filed with the U.S. Securities and Exchange Commission ("SEC") on September 24, 1990, as previously amended (the "Initial 13D"), is hereby further amended to furnish the additional information set forth in this Amendment No. 51 to the Initial 13D. All capitalized terms contained herein but not otherwise defined shall have the meanings ascribed to such terms in the Initial 13D.

Item 5. Interest in Securities of the Issuer

Items 5(a), 5(b) and 5(c) of the Initial 13D are hereby amended and restated as follows:

(a) The Reporting Persons may be deemed to beneficially own, in the aggregate, 170,793,800 Depositary Units, representing approximately 91.5% of the Issuer's outstanding Depositary Units (based upon: (i) the 182,190,734 Depositary Units stated to be outstanding as of August 2, 2018 by the Issuer in the Issuer's Form 10-Q filing filed with the Securities and Exchange Commission on August 2, 2018; plus (ii) the 4,400,450 Depositary Units issued to the Reporting Persons by the Issuer on September 18, 2018 in connection with a regular quarterly distribution of Depositary Units by the Issuer).

(b) CCI Onshore has sole voting power and sole dispositive power with respect to 39,758,292 Depositary Units. Pursuant to Rule 13d-3(a) under the Exchange Act, each of High Coast, Little Meadow and Mr. Icahn (by virtue of their relationships to CCI Onshore) may be deemed to indirectly beneficially own the Depositary Units which CCI Onshore owns. Each of High Coast, Little Meadow and Mr. Icahn disclaims beneficial ownership of the Depositary Units for all other purposes.

Gascon has sole voting power and sole dispositive power with respect to 23,414,492 Depositary Units. Pursuant to Rule 13d-3(a) under the Exchange Act, each of Little Meadow and Mr. Icahn (by virtue of their relationships to Gascon) may be deemed to indirectly beneficially own the Depositary Units which Gascon owns. Each of Little Meadow and Mr. Icahn disclaims beneficial ownership of the Depositary Units for all other purposes.

High Coast has sole voting power and sole dispositive power with respect to 82,152,341 Depositary Units. Pursuant to Rule 13d-3(a) under the Exchange Act, each of Little Meadow and Mr. Icahn (by virtue of their relationships to High Coast) may be deemed to indirectly beneficially own the Depositary Units which High Coast owns. Each of Little Meadow and Mr. Icahn disclaims beneficial ownership of the Depositary Units for all other purposes.

Highcrest has sole voting power and sole dispositive power with respect to 19,110,180 Depositary Units. Pursuant to Rule 13d-3(a) under the Exchange Act, each of Starfire and Mr. Icahn (by virtue of their relationships to Highcrest) may be deemed to indirectly beneficially own the Depositary Units which Highcrest owns. Each of Starfire and Mr. Icahn disclaims beneficial ownership of the Depositary Units for all other purposes.

Thornwood has sole voting power and sole dispositive power with respect to 6,358,495 Depositary Units. Pursuant to Rule 13d-3(a) under the Exchange Act, each of Barberry and Mr. Icahn (by virtue of their relationships to Thornwood) may be deemed to indirectly beneficially own the Depositary Units which Thornwood owns. Each of Barberry and Mr. Icahn disclaims beneficial ownership of the Depositary Units for all other purposes.

(c) The following table sets forth all transactions with respect to Depositary Units effected during the past sixty (60) days by any of the Reporting Persons and not previously reported on Schedule 13D. All such transactions were acquisitions of Depositary Units from the Issuer in connection with a quarterly dividend.


Name of Reporting Person
Date of Transaction
Amount of Securities
CCI Onshore
09/18/2018
1,024,360
     
Gascon
09/18/2018
603,268
     
High Coast
09/18/2018
2,116,630
     
Highcrest
09/18/2018
492,368
     
Thornwood
09/18/2018
163,824
     





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SIGNATURES

After reasonable inquiry and to the best of the knowledge and belief of each of the undersigned, each of the undersigned certifies that the information set forth in this statement on Schedule 13D concerning the depositary units representing limited partner interests in Icahn Enterprises L.P., a Delaware limited partnership, is true, complete and correct.

Dated: September 20, 2018


CCI ONSHORE LLC

By: /s/ Keith Cozza 
Name: Keith Cozza
Title: Secretary; Treasurer


GASCON PARTNERS

By: Little Meadow Corp., its managing general partner

By: /s/ Edward E. Mattner 
Name: Edward E. Mattner
Title: President; Authorized Signatory


HIGH COAST LIMITED PARTNERSHIP

By: Little Meadow Corp., its general partner

By: /s/ Edward E. Mattner 
Name: Edward E. Mattner
Title: President; Authorized Signatory


HIGHCREST INVESTORS LLC

By: /s/ Keith Cozza 
Name: Keith Cozza
Title: Vice President




[Signature Page for Amendment No. 51 to Schedule 13D – Icahn Enterprises L.P.]
12


BARBERRY CORP.

By: /s/ Edward E. Mattner 
Name: Edward E. Mattner
Title: Authorized Signatory


LITTLE MEADOW CORP.

By: /s/ Edward E. Mattner 
Name: Edward E. Mattner
Title: President; Authorized Signatory


STARFIRE HOLDING CORPORATION

By: /s/ Keith Cozza 
Name: Keith Cozza
Title: Authorized Signatory


THORNWOOD ASSOCIATES LIMITED PARTNERSHIP

By: Barberry Corp., its general partner

By: /s/ Edward E. Mattner 
Name: Edward E. Mattner
Title: Authorized Signatory



/s/ Carl C. Icahn 
CARL C. ICAHN




[Signature Page for Amendment No. 51 to Schedule 13D – Icahn Enterprises L.P.]

13