Catalogue

Expand all | Collapse all | Show hidden lines

  • Banner

HC-PARTS CA1051IR Alternator

CA1051IR
£0.00
Tax included
Quantity
Out-of-Stock

  Security policy

(edit with the Customer Reassurance module)

  Delivery policy

(edit with the Customer Reassurance module)

  Return policy

(edit with the Customer Reassurance module)

BOSCH
0 986 043 931
DELCO REMY
10479955
DELCO REMY
3493855
DELCO REMY
3493955
DELCO REMY
855
DELCO REMY
955
DELCO REMY
DRA3703
DELCO REMY
DRA3703N
DRI
228127702
ELSTOCK
282923
FARCOM
111395
HELLA
8EL737001001
LUCAS
LRB00319
MAGNETI MARELLI
944390900780
OPEL
6204007
OPEL
6204010
SPIDAN
5024
VALEO
436719
Manufacturer Model Engine Engine info Years Note
OPEL CALIBRA A (C89) 2.5 i V6 (M07) 2498 ccm, 125 kw, 170 hp 1993 - 1997 Engine Code : C25XE, Engine Code : X25XE
OPEL OMEGA B (V94) 2.5 V6 (F69, M69, P69) 2498 ccm, 125 kw, 170 hp 1994 - 2000 Engine Code : X25XE
OPEL OMEGA B (V94) 3.0 V6 (F69, M69, P69) 2962 ccm, 155 kw, 211 hp 1994 - 2001 Engine Code : X30XE
OPEL OMEGA B Estate (V94) 2.5 V6 (F35, M35, P35) 2498 ccm, 125 kw, 170 hp 1994 - 2000 Engine Code : X25XE
OPEL OMEGA B Estate (V94) 3.0 V6 (F35, M35, P35) 2962 ccm, 155 kw, 211 hp 1994 - 2001 Engine Code : X30XE
OPEL VECTRA A (J89) 2.5 CD 4x4 (F19, M19) 2498 ccm, 125 kw, 170 hp 1992 - 1995 Engine Code : C25XE, Manufacturer Restriction : Delco Remy
OPEL VECTRA A (J89) 2.5 V6 (F19, M19) 2498 ccm, 125 kw, 170 hp 1993 - 1995 Construction year to : 08/1995, Engine Code : C25XE
OPEL VECTRA A Hatchback (J89) 2.5 V6 (F68, M68) 2498 ccm, 125 kw, 170 hp 1993 - 1995 Construction year to : 08/1995, Engine Code : C25XE
VAUXHALL CALIBRA (C89) 2.5 i V6 2498 ccm, 125 kw, 170 hp 1993 - 1997 Construction year to : 11/1995, Engine Code : C25XE, Engine Code : X25XE
VAUXHALL CAVALIER Mk III Hatchback (J89) 2.5 V6 2498 ccm, 125 kw, 170 hp 1988 - 1994 Construction year from : 02/1993, Engine Code : C25XE
VAUXHALL CAVALIER Mk III Saloon (J89) 2.5 V6 2498 ccm, 125 kw, 170 hp 1988 - 1994 Construction year from : 02/1993, Engine Code : C25XE
Product Details
HC-PARTS
CA1051IR
New product

Data sheet

Number of grooves
6
Pulleys
with multi-belt pulley
Diameter [mm]
55
Alternator Charge Current [A]
70
Voltage [V]
14
New product
100 other products in the same category:

Reference: A9TU6499

Brand: WAI

WAI A9TU6499 Alternator

Manufacturer Restriction : MITSUBISHI, Number ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA03469

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA03469 Alternator

Belt Pulley Ø [mm] : 56, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: ADM511503C

Brand: BLUE PRINT

BLUE PRINT ADM511503C Alternator

Alternator Charge Current [A] : 100, Weight ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 124 525 035

Brand: BOSCH

BOSCH 0 124 525 035 Alternator

Belt Pulley Ø [mm] : 54,3, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 11691N

Brand: WAI

WAI 11691N Alternator

Manufacturer Restriction : Denso, Number of ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 120 489 025

Brand: BOSCH

BOSCH 0 120 489 025 Alternator

Voltage [V] : 14, Fastening Type : Single ...

(0)

Price £0.00
More
Out-of-Stock

Reference: CA1136IR

Brand: HC-PARTS

HC-PARTS CA1136IR Alternator

Voltage [V] : 14, Plug Type ID : PL07, Number ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 046 177

Brand: BOSCH

BOSCH 0 986 046 177 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10459007

Brand: DELCO REMY

DELCO REMY 10459007 Alternator

Voltage [V] : 24, Version : Serie: 25SI (450), ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA02217

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA02217 Alternator

Belt Pulley Ø [mm] : 61, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 042 303 089

Brand: BOSCH

BOSCH F 042 303 089 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: RA18412

Brand: DELCO REMY

DELCO REMY RA18412 Alternator

Voltage [V] : 12, Plug Type ID : PLUG271, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 19010101

Brand: DELCO REMY

DELCO REMY 19010101 Alternator

Voltage [V] : 12, Version : Serie: 21SI (350), ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 21212N

Brand: WAI

WAI 21212N Alternator

Manufacturer Restriction : Delco, Voltage [V] ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA02635

Brand: LUCAS

LUCAS LRA02635 Alternator

Belt Pulley Ø [mm] : 56,0, Number of ribs : 4, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRB2360

Brand: DELCO REMY

DELCO REMY DRB2360 Alternator

Number of ribs : 9, Voltage [V] : 24, Plug ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 13795N

Brand: WAI

WAI 13795N Alternator

Manufacturer Restriction : Denso, Number of ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 042 205 263

Brand: BOSCH

BOSCH F 042 205 263 Alternator

Recommended additional repairs : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 1117084

Brand: DELCO REMY

DELCO REMY 1117084 Alternator

Voltage [V] : 24, Version : Serie: 30DN (150), ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRA1134

Brand: DELCO REMY

DELCO REMY DRA1134 Alternator

Number of ribs : 6, Voltage [V] : 12, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA01744

Brand: LUCAS

LUCAS LRA01744 Alternator

Belt Pulley Ø [mm] : 57,0, Number of ribs : 6, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRD00160

Brand: LUCAS

LUCAS LRD00160 Alternator

Net weight [kg] : 4,6, Voltage [V] : 6, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 043 061

Brand: BOSCH

BOSCH 0 986 043 061 Alternator

Voltage [V] : 14, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA04246

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA04246 Alternator

Belt Pulley Ø [mm] : 51, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA01385

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA01385 Alternator

Belt Pulley Ø [mm] : 57, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA01744

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA01744 Alternator

Belt Pulley Ø [mm] : 57, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 036 397

Brand: BOSCH

BOSCH 0 986 036 397 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 JR1 666

Brand: BOSCH

BOSCH 0 986 JR1 666 Alternator

Recommended additional repairs : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 13707R

Brand: WAI

WAI 13707R Alternator

Number of ribs : 6, Voltage [V] : 12, Plug ...

(0)

Price £0.00
More
Out-of-Stock

Reference: ADA101114

Brand: BLUE PRINT

BLUE PRINT ADA101114 Alternator

Belt Pulley Ø [mm] : 57, Number of ribs : 6, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 9 120 690 498

Brand: BOSCH

BOSCH 9 120 690 498 Alternator

Recommended additional repairs : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 124 625 032

Brand: BOSCH

BOSCH 0 124 625 032 Alternator

Belt Pulley Ø [mm] : 50, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 123 110 007

Brand: BOSCH

BOSCH 0 123 110 007 Alternator

Belt Pulley Ø [mm] : 51, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 048 517

Brand: BOSCH

BOSCH 0 986 048 517 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 1117899

Brand: DELCO REMY

DELCO REMY 1117899 Alternator

Voltage [V] : 12, Version : Serie: 21SI (355), ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 049 940

Brand: BOSCH

BOSCH 0 986 049 940 Alternator

Belt Pulley Ø [mm] : 60, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 12130N

Brand: WAI

WAI 12130N Alternator

Manufacturer Restriction : Magnaeton, Number ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 UR0 638

Brand: BOSCH

BOSCH 0 986 UR0 638 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 22536R

Brand: WAI

WAI 22536R Alternator

Manufacturer Restriction : Bosch, Number of ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 22674R

Brand: WAI

WAI 22674R Alternator

Number of ribs : 6, Voltage [V] : 12, Plug ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA03973

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA03973 Alternator

Belt Pulley Ø [mm] : 55, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DAN2026

Brand: DENSO

DENSO DAN2026 Alternator

Belt Pulley Ø [mm] : 63, Number of ribs : 1, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRB00183

Brand: LUCAS

LUCAS LRB00183 Alternator

Belt Pulley Ø [mm] : 63,0, Number of ribs : 6, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRB2680

Brand: DELCO REMY

DELCO REMY DRB2680 Alternator

Number of ribs : 5, Voltage [V] : 12, Plug ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA03014

Brand: LUCAS

LUCAS LRA03014 Alternator

Belt Pulley Ø [mm] : 61,0, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: ALT547

Brand: JAPANPARTS

JAPANPARTS ALT547 Alternator

Voltage [V] : 12, Rated Current [A] : 80, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: CA2044IR

Brand: HC-PARTS

HC-PARTS CA2044IR Alternator

Voltage [V] : 14, Plug Type ID : PL174, Number ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRA3250

Brand: DELCO REMY

DELCO REMY DRA3250 Alternator

Belt Pulley Ø [mm] : 9,7, Voltage [V] : 12, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 51106

Brand: DELCO REMY

DELCO REMY 51106 Alternator

Version : Serie: 10 SI

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA03647

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA03647 Alternator

Belt Pulley Ø [mm] : 58, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA01349

Brand: LUCAS

LUCAS LRA01349 Alternator

Belt Pulley Ø [mm] : 49,0, Number of ribs : 1, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 9 120 690 496

Brand: BOSCH

BOSCH 9 120 690 496 Alternator

Recommended additional repairs : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 124 315 041

Brand: BOSCH

BOSCH 0 124 315 041 Alternator

Voltage [V] : 14, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA00763

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA00763 Alternator

Belt Pulley Ø [mm] : 62, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 000 BL0 8F1

Brand: BOSCH

BOSCH F 000 BL0 8F1 Alternator

Belt Pulley Ø [mm] : 52,5, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRB00369

Brand: LUCAS

LUCAS LRB00369 Alternator

Belt Pulley Ø [mm] : 55,0, Number of ribs : 7, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA02935

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA02935 Alternator

Belt Pulley Ø [mm] : 72, Net weight [kg] : 8, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 11303N

Brand: WAI

WAI 11303N Alternator

Belt Pulley Ø [mm] : 48, Manufacturer ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 002 G90 008

Brand: BOSCH

BOSCH F 002 G90 008 Alternator

Recommended additional repairs : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRA4821

Brand: DELCO REMY

DELCO REMY DRA4821 Alternator

Voltage [V] : 12, Plug Type ID : PLUG270, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA04110

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA04110 Alternator

Belt Pulley Ø [mm] : 54, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA02264

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA02264 Alternator

Belt Pulley Ø [mm] : 60, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRA4146N

Brand: DELCO REMY

DELCO REMY DRA4146N Alternator

Number of ribs : 6, Voltage [V] : 12, Plug ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 033 130

Brand: BOSCH

BOSCH 0 986 033 130 Alternator

Voltage [V] : 14, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 042 911

Brand: BOSCH

BOSCH 0 986 042 911 Alternator

Belt Pulley Ø [mm] : 55, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRA0083

Brand: DELCO REMY

DELCO REMY DRA0083 Alternator

Number of ribs : 6, Voltage [V] : 12, Plug ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 UR6 403

Brand: BOSCH

BOSCH 0 986 UR6 403 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRA3804

Brand: DELCO REMY

DELCO REMY DRA3804 Alternator

Voltage [V] : 12, Plug Type ID : PLUG381, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 13609N

Brand: WAI

WAI 13609N Alternator

Manufacturer Restriction : Bosch, Number of ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRB4070

Brand: DELCO REMY

DELCO REMY DRB4070 Alternator

Voltage [V] : 24, Plug Type ID : PLUG632, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 082 730

Brand: BOSCH

BOSCH 0 986 082 730 Alternator

Belt Pulley Ø [mm] : 55, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DAN1336

Brand: DENSO

DENSO DAN1336 Alternator

Belt Pulley Ø [mm] : 54, Number of ribs : 6, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 AN0 567

Brand: BOSCH

BOSCH 0 986 AN0 567 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA00306

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA00306 Alternator

Belt Pulley Ø [mm] : 68, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 JR1 209

Brand: BOSCH

BOSCH 0 986 JR1 209 Alternator

Recommended additional repairs : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 11216N

Brand: WAI

WAI 11216N Alternator

Belt Pulley Ø [mm] : 50, Manufacturer ...

(0)

Price £0.00
More
Out-of-Stock

Reference: CA1585IR

Brand: HC-PARTS

HC-PARTS CA1585IR Alternator

Voltage [V] : 14, Plug Type ID : PL07, Number ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA04242

Brand: LUCAS

LUCAS LRA04242 Alternator

Belt Pulley Ø [mm] : 61,0, Number of ribs : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 8709N

Brand: WAI

WAI 8709N Alternator

Manufacturer Restriction : Delco, Voltage [V] ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 UN0 454

Brand: BOSCH

BOSCH 0 986 UN0 454 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 JR1 884

Brand: BOSCH

BOSCH 0 986 JR1 884 Alternator

Recommended additional repairs : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRA0814

Brand: DELCO REMY

DELCO REMY DRA0814 Alternator

Voltage [V] : 12, Supplementary ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 9 129 080 187

Brand: BOSCH

BOSCH 9 129 080 187 Alternator

Recommended additional repairs : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DRA4016

Brand: DELCO REMY

DELCO REMY DRA4016 Alternator

(0)

Price £0.00
More
Out-of-Stock

Reference: DRB2800

Brand: DELCO REMY

DELCO REMY DRB2800 Alternator

Belt Pulley Ø [mm] : 54, Number of ribs : 5, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 UR0 345

Brand: BOSCH

BOSCH 0 986 UR0 345 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA02196

Brand: LUCAS

LUCAS LRA02196 Alternator

Belt Pulley Ø [mm] : 67,0, Number of ribs : 6, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 000 BL0 7W7

Brand: BOSCH

BOSCH F 000 BL0 7W7 Alternator

Belt Pulley Ø [mm] : 55, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA03094

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA03094 Alternator

Belt Pulley Ø [mm] : 60, Net weight [kg] : 5, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 116131

Brand: HC-Cargo

HC-Cargo 116131 Alternator

Voltage [V] : 14, Number of grooves : 1, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: CA1561IR

Brand: HC-PARTS

HC-PARTS CA1561IR Alternator

Voltage [V] : 14, Number of grooves : 5, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 120 488 192

Brand: BOSCH

BOSCH 0 120 488 192 Alternator

Voltage [V] : 14, Fastening Type : Single ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 1103095

Brand: DELCO REMY

DELCO REMY 1103095 Alternator

Version : Serie: 10SI

(0)

Price £0.00
More
Out-of-Stock

Reference: RAA11100

Brand: DELCO REMY

DELCO REMY RAA11100 Alternator

Belt Pulley Ø [mm] : 12,7, Voltage [V] : 12, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 986 UR0 803

Brand: BOSCH

BOSCH 0 986 UR0 803 Alternator

Voltage [V] : 12, Alternator Charge Current ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LRA04141

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LRA04141 Alternator

Belt Pulley Ø [mm] : 49, Net weight [kg] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 000 BL0 730

Brand: BOSCH

BOSCH F 000 BL0 730 Alternator

Belt Pulley Ø [mm] : 50,8, Voltage [V] : 14, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10459177

Brand: DELCO REMY

DELCO REMY 10459177 Alternator

Voltage [V] : 12, Version : Serie: 21SI (360), ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 124 225 028

Brand: BOSCH

BOSCH 0 124 225 028 Alternator

Voltage [V] : 14, Fastening Type : Double ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 21486R

Brand: WAI

WAI 21486R Alternator

Number of ribs : 6, Voltage [V] : 12, Plug ...

(0)

Price £0.00
More
Out-of-Stock

Follow us on Facebook