Catalogue

Expand all | Collapse all | Show hidden lines

  • Banner

BOSCH 0 258 017 043 Lambda Sensor

0 258 017 043
£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)

Manufacturer Model Engine Engine info Years Note
VOLVO S60 I (384) 2.4 D 2400 ccm, 93 kw, 126 hp 2005 - 2010 Construction year to : 07/2009, Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO S60 I (384) 2.4 D 2400 ccm, 120 kw, 163 hp 2005 - 2009 Construction year to : 07/2009, Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO S60 I (384) 2.4 D 2401 ccm, 90 kw, 122 hp 2005 - 2006 Construction year to : 07/2006, Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO S60 I (384) 2.4 D5 2401 ccm, 136 kw, 185 hp 2005 - 2010 Construction year to : 07/2009, Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO V70 II (285) 2.4 CDI 2401 ccm, 90 kw, 122 hp 2005 - 2008 Construction year to : 07/2007, Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO V70 II (285) 2.4 D 2400 ccm, 93 kw, 126 hp 2005 - 2008 Construction year to : 07/2007, Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO V70 II (285) 2.4 D5 2401 ccm, 136 kw, 185 hp 2005 - 2008 Construction year from : 08/2006, Construction year to : 07/2007, Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe, TecDoc Engine Number : 20081
VOLVO V70 II (285) 2.4 D5 AWD 2401 ccm, 136 kw, 185 hp 2005 - 2007 Construction year to : 07/2007, Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO V70 XC (295) 2.4 D5 AWD 2401 ccm, 136 kw, 185 hp 2005 - 2007 Construction year to : 07/2007, Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO XC90 I (275) D3 / D5 2400 ccm, 120 kw, 163 hp 2009 - 2014 Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO XC90 I (275) D5 AWD 2400 ccm, 147 kw, 200 hp 2011 - 2014 Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO XC90 I (275) D5 AWD 2401 ccm, 136 kw, 185 hp 2005 - 2010 Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO XC90 I (275) D5 AWD 2400 ccm, 120 kw, 163 hp 2007 - 2010 Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
VOLVO XC90 I (275) D5 AWD 2400 ccm, 155 kw, 211 hp 2013 - 2014 Exhaust System : in front of the catalyst, Lambda Sensor : Regulating Probe
Product Details
BOSCH
0 258 017 043
New product

Data sheet

Overall Length [mm]
510
Number of circuits
5
Recommended replace interval [km]
250000
New product
100 other products in the same category:

Reference: LLB877

Brand: LEMARK

LEMARK LLB877 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,092, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 64068

Brand: INTERMOTOR

INTERMOTOR 64068 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 65039

Brand: INTERMOTOR

INTERMOTOR 65039 Lambda Sensor

Number of Poles : 6, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00H L00 148

Brand: BOSCH

BOSCH F 00H L00 148 Lambda Sensor

Overall Length [mm] : 410, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.8212

Brand: FACET

FACET 10.8212 Lambda Sensor

Cable Length [mm] : 300, Supplementary ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5040

Brand: LUCAS

LUCAS LEB5040 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 986 728

Brand: BOSCH

BOSCH 0 258 986 728 Lambda Sensor

Overall Length [mm] : 460, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB525

Brand: LEMARK

LEMARK LLB525 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB830

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB830 Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 300

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 010 032

Brand: BOSCH

BOSCH 0 258 010 032 Lambda Sensor

Connector / Clamp : Connector may need ...

(0)

Price £0.00
More
Out-of-Stock

Reference: ADG07091

Brand: BLUE PRINT

BLUE PRINT ADG07091 Lambda Sensor

Cable Length [mm] : 250, Resistance [Ohm] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: A2C59513337Z

Brand: VDO

VDO A2C59513337Z Lambda Sensor

Length [mm] : 1190, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 006 939

Brand: BOSCH

BOSCH 0 258 006 939 Lambda Sensor

Overall Length [mm] : 435, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: OS-B414P

Brand: MOBILETRON

MOBILETRON OS-B414P Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 1070, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 030 259

Brand: BOSCH

BOSCH 0 258 030 259 Lambda Sensor

Overall Length [mm] : 650, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 003 784

Brand: BOSCH

BOSCH 0 258 003 784 Lambda Sensor

Overall Length [mm] : 440, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5044

Brand: LUCAS

LUCAS LEB5044 Lambda Sensor

Number of Poles : 4, Connector Shape : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.7362

Brand: FACET

FACET 10.7362 Lambda Sensor

Cable Length [mm] : 720, Conductor Number : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB813

Brand: LEMARK

LEMARK LLB813 Lambda Sensor

Number of Poles : 6, Manufacturer Restriction ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 006 253

Brand: BOSCH

BOSCH 0 258 006 253 Lambda Sensor

Overall Length [mm] : 1520, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 006 791

Brand: BOSCH

BOSCH 0 258 006 791 Lambda Sensor

Overall Length [mm] : 480, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB121

Brand: LUCAS

LUCAS LEB121 Lambda Sensor

Number of Poles : 1, Thread Size : 18mm, Net ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.7787

Brand: FACET

FACET 10.7787 Lambda Sensor

Cable Length [mm] : 250, Conductor Number : 3

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB769

Brand: LEMARK

LEMARK LLB769 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 23127

Brand: OSSCA

OSSCA 23127 Lambda Sensor

Number of Poles : 4, Length [mm] : 428

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5443

Brand: LUCAS

LUCAS LEB5443 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.7065

Brand: FACET

FACET 10.7065 Lambda Sensor

Cable Length [mm] : 570, Conductor Number : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB867

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB867 Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 570

(0)

Price £0.00
More
Out-of-Stock

Reference: OS-T413P

Brand: MOBILETRON

MOBILETRON OS-T413P Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 250, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-2041

Brand: DENSO

DENSO DOX-2041 Lambda Sensor

Number of Poles : 4, Thread Size : M18x1.5, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 017 099

Brand: BOSCH

BOSCH 0 258 017 099 Lambda Sensor

Overall Length [mm] : 910, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.7082

Brand: FACET

FACET 10.7082 Lambda Sensor

Cable Length [mm] : 570, Conductor Number : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 003 211

Brand: BOSCH

BOSCH 0 258 003 211 Lambda Sensor

Overall Length [mm] : 610, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 64243

Brand: INTERMOTOR

INTERMOTOR 64243 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB906

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB906 Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 375

(0)

Price £0.00
More
Out-of-Stock

Reference: 181806

Brand: HC-Cargo

HC-Cargo 181806 Lambda Sensor

Thread Size : M18-1.5, Cable Length [mm] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00H L00 366

Brand: BOSCH

BOSCH F 00H L00 366 Lambda Sensor

Overall Length [mm] : 1050, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-0324

Brand: DENSO

DENSO DOX-0324 Lambda Sensor

Number of Poles : 4, Thread Size : M18x1.5, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.8233

Brand: FACET

FACET 10.8233 Lambda Sensor

Cable Length [mm] : 400, Conductor Number : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: ADG07030

Brand: BLUE PRINT

BLUE PRINT ADG07030 Lambda Sensor

Cable Length [mm] : 500, Number of connectors ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 260 169

Brand: BOSCH

BOSCH F 00E 260 169 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB4062

Brand: LUCAS

LUCAS LEB4062 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5205

Brand: LUCAS

LUCAS LEB5205 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 262 186

Brand: BOSCH

BOSCH F 00E 262 186 Lambda Sensor

Overall Length [mm] : 490, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: 64674

Brand: INTERMOTOR

INTERMOTOR 64674 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5152

Brand: LUCAS

LUCAS LEB5152 Lambda Sensor

Number of Poles : 3, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 47052

Brand: OSSCA

OSSCA 47052 Lambda Sensor

Cable Length [mm] : 510, Conductor Number : 1

(0)

Price £0.00
More
Out-of-Stock

Reference: OS-B490P

Brand: MOBILETRON

MOBILETRON OS-B490P Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 650, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB193

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB193 Lambda Sensor

Number of Poles : 3, Cable Length [mm] : 870

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.7049

Brand: FACET

FACET 10.7049 Lambda Sensor

Cable Length [mm] : 950, Conductor Number : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: OS-B484P

Brand: MOBILETRON

MOBILETRON OS-B484P Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 450, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 281 004 207

Brand: BOSCH

BOSCH 0 281 004 207 Lambda Sensor

Overall Length [mm] : 740, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 030 184

Brand: BOSCH

BOSCH 0 258 030 184 Lambda Sensor

Overall Length [mm] : 700, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: OS-B4109P

Brand: MOBILETRON

MOBILETRON OS-B4109P Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 260, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB730

Brand: LEMARK

LEMARK LLB730 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB164

Brand: LEMARK

LEMARK LLB164 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 261 985

Brand: BOSCH

BOSCH F 00E 261 985 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 001 931

Brand: BOSCH

BOSCH 0 258 001 931 Lambda Sensor

Overall Length [mm] : 895, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: ADS77024

Brand: BLUE PRINT

BLUE PRINT ADS77024 Lambda Sensor

Cable Length [mm] : 375, Weight [kg] : 0,120, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB410

Brand: LEMARK

LEMARK LLB410 Lambda Sensor

Number of Poles : 6, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.7484

Brand: FACET

FACET 10.7484 Lambda Sensor

Cable Length [mm] : 250, Conductor Number : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: OO-N01

Brand: JAPANPARTS

JAPANPARTS OO-N01 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB250

Brand: LEMARK

LEMARK LLB250 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB821

Brand: LEMARK

LEMARK LLB821 Lambda Sensor

Number of Poles : 6, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5008

Brand: LUCAS

LUCAS LEB5008 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: OS-B4185P

Brand: MOBILETRON

MOBILETRON OS-B4185P Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 300, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 34336

Brand: OSSCA

OSSCA 34336 Lambda Sensor

Number of Poles : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: 64062

Brand: INTERMOTOR

INTERMOTOR 64062 Lambda Sensor

Number of Poles : 3, Connector Shape : Round, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB118

Brand: LEMARK

LEMARK LLB118 Lambda Sensor

Number of Poles : 1, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 017 269

Brand: BOSCH

BOSCH 0 258 017 269 Lambda Sensor

Overall Length [mm] : 400, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB258

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB258 Lambda Sensor

Number of Poles : 3, Cable Length [mm] : 380

(0)

Price £0.00
More
Out-of-Stock

Reference: F 01R 00C 004

Brand: BOSCH

BOSCH F 01R 00C 004 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: 181774

Brand: HC-Cargo

HC-Cargo 181774 Lambda Sensor

Thread Size : M18-1.5, Cable Length [mm] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: ADM57010

Brand: BLUE PRINT

BLUE PRINT ADM57010 Lambda Sensor

Cable Length [mm] : 465, Number of connectors ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 281 004 420

Brand: BOSCH

BOSCH 0 281 004 420 Lambda Sensor

Overall Length [mm] : 1240, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 010 127

Brand: BOSCH

BOSCH 0 258 010 127 Lambda Sensor

Overall Length [mm] : 650, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB666

Brand: LUCAS

LUCAS LEB666 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB207

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB207 Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 610

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 986 617

Brand: BOSCH

BOSCH 0 258 986 617 Lambda Sensor

Connector / Clamp : Connector may need ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 006 424

Brand: BOSCH

BOSCH 0 258 006 424 Lambda Sensor

Overall Length [mm] : 2030, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 003 558

Brand: BOSCH

BOSCH 0 258 003 558 Lambda Sensor

Overall Length [mm] : 260, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.7628

Brand: FACET

FACET 10.7628 Lambda Sensor

Cable Length [mm] : 300, Conductor Number : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.7487

Brand: FACET

FACET 10.7487 Lambda Sensor

Cable Length [mm] : 650, Conductor Number : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: 41462

Brand: OSSCA

OSSCA 41462 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-0319

Brand: DENSO

DENSO DOX-0319 Lambda Sensor

Number of Poles : 4, Thread Size : M18x1.5, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-0556

Brand: DENSO

DENSO DOX-0556 Lambda Sensor

Number of Poles : 4, Thread Size : M18x1.5, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 260 921

Brand: BOSCH

BOSCH F 00E 260 921 Lambda Sensor

Overall Length [mm] : 610, Number of circuits : 3

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 001 960

Brand: BOSCH

BOSCH 0 258 001 960 Lambda Sensor

Overall Length [mm] : 560, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB866

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB866 Lambda Sensor

Number of Poles : 2, Cable Length [mm] : 350

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 260 919

Brand: BOSCH

BOSCH F 00E 260 919 Lambda Sensor

Overall Length [mm] : 450, Number of circuits : 3

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 986 711

Brand: BOSCH

BOSCH 0 258 986 711 Lambda Sensor

Overall Length [mm] : 365, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB649

Brand: LUCAS

LUCAS LEB649 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 263 136

Brand: BOSCH

BOSCH F 00E 263 136 Lambda Sensor

Overall Length [mm] : 680, Number of circuits : 5

(0)

Price £0.00
More
Out-of-Stock

Reference: 7.05270.96.0

Brand: PIERBURG

PIERBURG 7.05270.96.0 Lambda Sensor

Voltage [V] : 12, Cable Length [mm] : 1440, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: ADJ137023

Brand: BLUE PRINT

BLUE PRINT ADJ137023 Lambda Sensor

Weight [kg] : 0,084

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5182

Brand: LUCAS

LUCAS LEB5182 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,2, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 263 363

Brand: BOSCH

BOSCH F 00E 263 363 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: OPH047

Brand: Beru By Driv

BERU by DRiV OPH047 Lambda Sensor

Thread Size : M 18x1,5, Cable Length [mm] : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB963

Brand: LEMARK

LEMARK LLB963 Lambda Sensor

Number of Poles : 3, Connector Shape : ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 030 461

Brand: BOSCH

BOSCH 0 258 030 461 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Follow us on Facebook