Catalogue

Expand all | Collapse all | Show hidden lines

  • Banner

BLUE PRINT ADN17044 Lambda Sensor

ADN17044
£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
F 00E 262 942
BOSCH
F 00E 262 950
BOSCH
F 00E 262 952
CSV electronic parts
CSL2339
DENSO
DOX-1447
ERA
570284A
FAE
75640
FISPA
90339
HERTH+BUSS JAKOPARTS
J1461008
HOFFER
7481739
INFINITI
22693JA00B
KAVO PARTS
EOS6556
MAGNETI MARELLI
600000039780
MASUMA
MOE2002
MEAT & DORIA
81739
MTE-THOMSON
980440040
NISSAN
22693JA00B
NISSAN
22693ZE00A
NPS
DOX1447
NTY
ESLNS022
OSSCA
47686
PEMEBLA
JAPDOX1447
SIDAT
90339
StartVOLT
VSOS1408
STELLOX
2000135SX
WALKER PRODUCTS
25054109
WALKER PRODUCTS
45064087
WE PARTS
290960319
WILMINK GROUP
WG1014014
WILMINK GROUP
WG1029023
Manufacturer Model Engine Engine info Years Note
INFINITI G Saloon 35 X 3498 ccm, 228 kw, 310 hp 2007 - 2008
NISSAN 350 Z Coupe (Z33) 3.5 3498 ccm, 230 kw, 313 hp 2005 - 2008
NISSAN 350 Z Coupe (Z33) 3.5 3498 ccm, 228 kw, 310 hp 2006 - 2008
NISSAN 350 Z Roadster (Z33) 3.5 3498 ccm, 230 kw, 313 hp 2005 - 2009
NISSAN 350 Z Roadster (Z33) 3.5 3498 ccm, 228 kw, 310 hp 2007 - 2009
NISSAN ALTIMA (L32) 2.5 2488 ccm, 128 kw, 174 hp 2006 - 2013 Construction year to : 08/2007
NISSAN ALTIMA (L32) 2.5 2488 ccm, 131 kw, 178 hp 2006 - 2012 Construction year to : 08/2007, Country-spec. model : California
NISSAN ALTIMA (L32) 2.5 Hybrid (L32HV) 2488 ccm, 118 kw, 160 hp 2006 - 2011 Construction year to : 08/2007
NISSAN ALTIMA (L32) 3.5 3498 ccm, 201 kw, 273 hp 2006 - 2013 Construction year to : 03/2007, Exhaust System : in front of the catalyst
NISSAN ALTIMA Coupe (CL32) 2.5 Hybrid (CL32HV) 2488 ccm, 118 kw, 160 hp 2007 - 2013 Construction year to : 08/2007
NISSAN X-TRAIL (T31) 2.5 4x4 2488 ccm, 124 kw, 169 hp 2007 - 2013
NISSAN X-TRAIL (T31) 2.5 4x4 2488 ccm, 122 kw, 166 hp 2008 - 2013 Fitting Position : Upper
NISSAN X-TRAIL (T31) 2.5 4x4 2488 ccm, 125 kw, 167 hp 2007 - 2014
RENAULT KOLEOS I (HY_) 2.5 4x4 (HY0C, HY0N) 2488 ccm, 126 kw, 171 hp 2008 -
Product Details
BLUE PRINT
ADN17044
New product

Data sheet

Weight [kg]
0,116
Number of circuits
4
Outer thread [mm]
M18 x 1.5
Cable Length [mm]
400
New product
100 other products in the same category:

Reference: 0 258 030 255

Brand: BOSCH

BOSCH 0 258 030 255 Lambda Sensor

Overall Length [mm] : 610, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 006 311

Brand: BOSCH

BOSCH 0 258 006 311 Lambda Sensor

Overall Length [mm] : 358, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 261 008

Brand: BOSCH

BOSCH F 00E 261 008 Lambda Sensor

Overall Length [mm] : 1150, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5149

Brand: LUCAS

LUCAS LEB5149 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB772

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB772 Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 870

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-0284

Brand: DENSO

DENSO DOX-0284 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: A2C59513879Z

Brand: VDO

VDO A2C59513879Z Lambda Sensor

Length [mm] : 460, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-0102

Brand: DENSO

DENSO DOX-0102 Lambda Sensor

Number of Poles : 2, Thread Size : Flange 44, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 7.05270.31.0

Brand: PIERBURG

PIERBURG 7.05270.31.0 Lambda Sensor

Voltage [V] : 12, Cable Length [mm] : 1100, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5306

Brand: LUCAS

LUCAS LEB5306 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 260 496

Brand: BOSCH

BOSCH F 00E 260 496 Lambda Sensor

Overall Length [mm] : 275

(0)

Price £0.00
More
Out-of-Stock

Reference: 35637

Brand: OSSCA

OSSCA 35637 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-1171

Brand: DENSO

DENSO DOX-1171 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 003 451

Brand: BOSCH

BOSCH 0 258 003 451 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 005 213

Brand: BOSCH

BOSCH 0 258 005 213 Lambda Sensor

Overall Length [mm] : 445, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: ADN17029

Brand: BLUE PRINT

BLUE PRINT ADN17029 Lambda Sensor

Cable Length [mm] : 300, Number of connectors ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 030 372

Brand: BOSCH

BOSCH 0 258 030 372 Lambda Sensor

Overall Length [mm] : 720, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 260 621

Brand: BOSCH

BOSCH F 00E 260 621 Lambda Sensor

Overall Length [mm] : 680, Number of circuits : 3

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 262 056

Brand: BOSCH

BOSCH F 00E 262 056 Lambda Sensor

Overall Length [mm] : 600, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB633

Brand: LEMARK

LEMARK LLB633 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 64548

Brand: INTERMOTOR

INTERMOTOR 64548 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 261 126

Brand: BOSCH

BOSCH F 00E 261 126 Lambda Sensor

Overall Length [mm] : 455

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB769

Brand: LUCAS

LUCAS LEB769 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB715

Brand: LUCAS

LUCAS LEB715 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB700

Brand: LEMARK

LEMARK LLB700 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB739

Brand: LEMARK

LEMARK LLB739 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 08997

Brand: OSSCA

OSSCA 08997 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 005 255

Brand: BOSCH

BOSCH 0 258 005 255 Lambda Sensor

Overall Length [mm] : 318, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5013

Brand: LUCAS

LUCAS LEB5013 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 263 283

Brand: BOSCH

BOSCH F 00E 263 283 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: 64767

Brand: INTERMOTOR

INTERMOTOR 64767 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: OZH028

Brand: Beru By Driv

BERU by DRiV OZH028 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: ADA107022

Brand: BLUE PRINT

BLUE PRINT ADA107022 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 006 077

Brand: BOSCH

BOSCH 0 258 006 077 Lambda Sensor

Overall Length [mm] : 710, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 986 604

Brand: BOSCH

BOSCH 0 258 986 604 Lambda Sensor

Overall Length [mm] : 310, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 281 004 040

Brand: BOSCH

BOSCH 0 281 004 040 Lambda Sensor

Overall Length [mm] : 481, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 7.05271.44.0

Brand: PIERBURG

PIERBURG 7.05271.44.0 Lambda Sensor

Voltage [V] : 12, Cable Length [mm] : 675, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 010 133

Brand: BOSCH

BOSCH 0 258 010 133 Lambda Sensor

Overall Length [mm] : 355, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 263 119

Brand: BOSCH

BOSCH F 00E 263 119 Lambda Sensor

Overall Length [mm] : 330, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 260 598

Brand: BOSCH

BOSCH F 00E 260 598 Lambda Sensor

Overall Length [mm] : 455

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 262 888

Brand: BOSCH

BOSCH F 00E 262 888 Lambda Sensor

Overall Length [mm] : 780, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 005 094

Brand: BOSCH

BOSCH 0 258 005 094 Lambda Sensor

Overall Length [mm] : 340, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.8238

Brand: FACET

FACET 10.8238 Lambda Sensor

Cable Length [mm] : 800, Conductor Number : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: 64686

Brand: INTERMOTOR

INTERMOTOR 64686 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 010 357

Brand: BOSCH

BOSCH 0 258 010 357 Lambda Sensor

Overall Length [mm] : 647, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 003 202

Brand: BOSCH

BOSCH 0 258 003 202 Lambda Sensor

Overall Length [mm] : 800, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB149

Brand: LUCAS

LUCAS LEB149 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB637

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB637 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 010 544

Brand: BOSCH

BOSCH 0 258 010 544 Lambda Sensor

Overall Length [mm] : 1260, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00H L00 126

Brand: BOSCH

BOSCH F 00H L00 126 Lambda Sensor

Overall Length [mm] : 330, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB614

Brand: LEMARK

LEMARK LLB614 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: OS-B562

Brand: MOBILETRON

MOBILETRON OS-B562 Lambda Sensor

Number of Poles : 6, Cable Length [mm] : 1070, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-1076

Brand: DENSO

DENSO DOX-1076 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 003 505

Brand: BOSCH

BOSCH 0 258 003 505 Lambda Sensor

Overall Length [mm] : 500, Number of circuits ...

(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: OS-N405P

Brand: MOBILETRON

MOBILETRON OS-N405P Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 270, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 260 899

Brand: BOSCH

BOSCH F 00E 260 899 Lambda Sensor

Overall Length [mm] : 280, Number of circuits : 3

(0)

Price £0.00
More
Out-of-Stock

Reference: 64477

Brand: INTERMOTOR

INTERMOTOR 64477 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 64804

Brand: INTERMOTOR

INTERMOTOR 64804 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB034

Brand: LEMARK

LEMARK LLB034 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-2059

Brand: DENSO

DENSO DOX-2059 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB934

Brand: LEMARK

LEMARK LLB934 Lambda Sensor

Number of Poles : 5, Housing Colour : Black

(0)

Price £0.00
More
Out-of-Stock

Reference: ADH27061

Brand: BLUE PRINT

BLUE PRINT ADH27061 Lambda Sensor

Cable Length [mm] : 315, Weight [kg] : 0,12, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5029

Brand: LUCAS

LUCAS LEB5029 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 281 004 449

Brand: BOSCH

BOSCH 0 281 004 449 Lambda Sensor

Overall Length [mm] : 834, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 38175

Brand: OSSCA

OSSCA 38175 Lambda Sensor

Number of Poles : 4, Length [mm] : 460

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB884

Brand: LEMARK

LEMARK LLB884 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,09, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: OZH084

Brand: Beru By Driv

BERU by DRiV OZH084 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: OS-B432P

Brand: MOBILETRON

MOBILETRON OS-B432P Lambda Sensor

Number of Poles : 4, Cable Length [mm] : 1210, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 017 115

Brand: BOSCH

BOSCH 0 258 017 115 Lambda Sensor

Overall Length [mm] : 360, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 260 633

Brand: BOSCH

BOSCH F 00E 260 633 Lambda Sensor

Overall Length [mm] : 330, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5428

Brand: LUCAS

LUCAS LEB5428 Lambda Sensor

Number of Poles : 4, Net weight [kg] : 0,1, ...

(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: 1193803900

Brand: JP GROUP

JP GROUP 1193803900 Lambda Sensor

Number of Poles : 5, Length [mm] : 510, Lambda ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 64377

Brand: INTERMOTOR

INTERMOTOR 64377 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB689

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB689 Lambda Sensor

Number of Poles : 1, Cable Length [mm] : 584

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00H L00 445

Brand: BOSCH

BOSCH F 00H L00 445 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: 7.02604.91.0

Brand: PIERBURG

PIERBURG 7.02604.91.0 Lambda Sensor

Voltage [V] : 12, Cable Length [mm] : 330, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB5000

Brand: LUCAS

LUCAS LEB5000 Lambda Sensor

Number of Poles : 1, Connector Shape : Round, ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB612

Brand: LUCAS ELECTRICAL

LUCAS ELECTRICAL LEB612 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: OZH227

Brand: Beru By Driv

BERU by DRiV OZH227 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 003 162

Brand: BOSCH

BOSCH 0 258 003 162 Lambda Sensor

Overall Length [mm] : 960, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 003 128

Brand: BOSCH

BOSCH 0 258 003 128 Lambda Sensor

Overall Length [mm] : 511, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB212

Brand: LUCAS

LUCAS LEB212 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 017 180

Brand: BOSCH

BOSCH 0 258 017 180 Lambda Sensor

Overall Length [mm] : 1220, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 18232

Brand: OSSCA

OSSCA 18232 Lambda Sensor

Number of Poles : 5, Length [mm] : 750

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00H L00 216

Brand: BOSCH

BOSCH F 00H L00 216 Lambda Sensor

Overall Length [mm] : 285, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Reference: ADA107009

Brand: BLUE PRINT

BLUE PRINT ADA107009 Lambda Sensor

Weight [kg] : 0,150, Outer thread [mm] : M18 x 1.5

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 986 732

Brand: BOSCH

BOSCH 0 258 986 732 Lambda Sensor

Overall Length [mm] : 403, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.8219

Brand: FACET

FACET 10.8219 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: LEB765

Brand: LUCAS

LUCAS LEB765 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-0596

Brand: DENSO

DENSO DOX-0596 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 09258

Brand: OSSCA

OSSCA 09258 Lambda Sensor

(0)

Price £0.00
More
Out-of-Stock

Reference: DOX-2056

Brand: DENSO

DENSO DOX-2056 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: F 00E 262 206

Brand: BOSCH

BOSCH F 00E 262 206 Lambda Sensor

Overall Length [mm] : 490

(0)

Price £0.00
More
Out-of-Stock

Reference: LLB752

Brand: LEMARK

LEMARK LLB752 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 005 995

Brand: BOSCH

BOSCH 0 258 005 995 Lambda Sensor

Overall Length [mm] : 250, Number of circuits ...

(0)

Price £0.00
More
Out-of-Stock

Reference: 10.8464

Brand: FACET

FACET 10.8464 Lambda Sensor

Cable Length [mm] : 350, Conductor Number : 5

(0)

Price £0.00
More
Out-of-Stock

Reference: 64702

Brand: INTERMOTOR

INTERMOTOR 64702 Lambda Sensor

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

(0)

Price £0.00
More
Out-of-Stock

Reference: 0 258 030 159

Brand: BOSCH

BOSCH 0 258 030 159 Lambda Sensor

Overall Length [mm] : 320, Number of circuits : 4

(0)

Price £0.00
More
Out-of-Stock

Follow us on Facebook