Seats for 2018 Buick Envision
Categories
- Aero Ground Effects & Body Kits
- Brackets, Flanges & Hangers
- Bumper
- Bumper & Components - Front
- Bumper & Components - Rear
- Center Console
- Center Pillar & Rocker
- Cluster & Switches
- Console
- Control Cables
- Control Modules
- Cowl
- Dashboard
- Door & Components
- Doors
- Driver Seat Components
- Ducts
- Electrical Components
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Hood
- Exterior Trim - Lift Gate
- Exterior Trim - Pillars
- Exterior Trim - Quarter Panel
- Exterior Trim - Rear Door
- Fender & Components
- Fenders
- Floor
- Floor & Rails
- Frame
- Front Door
- Gaskets & Sealing Systems
- Gate & Hardware
- Glass - Front Door
- Glass - Lift Gate
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware
- Glass, Windows & Related Components
- Glove Box
- Grille
- Grille & Components
- Hardware, Fasteners & Fittings
- Hinge Pillar
- Hood
- Hood & Components
- Horns
- Information Labels
- Inner Structure
- Instrument Panel
- Instrument Panel Components
- Interior Trim
- Interior Trim - Front Door
- Interior Trim - Pillars
- Interior Trim - Quarter Panels
- Interior Trim - Rear Body
- Interior Trim - Rear Door
- Interior Trim - Roof
- Labels
- Liftgate
- Lock & Hardware
- Luggage Carrier
- Master Cylinder - Components On Dash Panel
- Mirrors
- Outside Mirrors
- Overhead Console
- Passenger Seat Components
- Quarter Panel
- Quarter Panel & Components
- Radiator Support
- Rear Body
- Rear Door
- Rear Floor & Rails
- Rear Seat Components
- Rocker Panel
- Roof
- Roof & Components
- Seat Belt
- Seats
- Sensors
- Side Pillar
- Sound System
- Splash Shields
- Spoiler
- Steering Wheel
- Structural Components & Rails
- Sunroof
- Switches, Solenoids & Actuators
- Tailgate & Midgate
- Trailer Hitch Components
- Truck Box
- Trunk Lid & Compartment
- Uniside
- Universal
- Wiper & Washer Components
- Wire, Cable & Related Components
- ABS Components
- Anti-Lock Brakes
- Brackets, Flanges & Hangers
- Brake Components
- Brake Hydraulics
- Control Modules
- Disc Pads & Brake Shoes
- Drums & Rotors
- Front Brakes
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Hoses & Pipes
- Hydraulic System
- Parking Brake
- Rear Brakes
- Sensors
- Service Kits
- Stability Control
- Switches, Solenoids & Actuators
- ABS Components
- Air Bag Components
- Air Bag System
- Alternator
- Alternator/Generator & Related Components
- Antenna & Radio
- Anti-Theft Components
- Anti-Theft System
- Automatic Transaxle
- Backup Lamps
- Battery
- Battery & Related Components
- Brackets, Flanges & Hangers
- Bulbs - Chassis
- Communication System Components
- Control Modules
- Doors
- Electrical Components
- Electrical Connectors
- Flasher Units, Fuses, & Circuit Breakers
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Glass, Windows & Related Components
- Hardware, Fasteners & Fittings
- Headlamp Components
- Heated Seats
- High Mounted Stop Lamp
- Horn
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- Lane Departure Warning
- License Lamps
- Liftgate
- Lighting - Exterior
- Lighting - Interior
- Lumbar Control Seats
- Mirrors
- Mobile Multi-Media
- Navigation System
- Parking Aid
- Power Outlets
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Ride Control Components
- Seat Belt
- Senders
- Sensors
- Starter
- Starter & Related Components
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tail Lamps
- Tire Pressure Monitor Components
- Wipers
- Wire, Cable & Related Components
- Wiring Harness
- Air Intake
- Bearings
- Brackets, Flanges & Hangers
- Control Modules
- Cylinder Block Components
- Engine
- Engine & Trans Mounting
- Engine Appearance Cover
- Engine Parts
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Mounts
- Oil Pan
- Oil Pump
- Pumps
- Sensors
- Switches, Solenoids & Actuators
- Transaxle Parts
- Valve Train Components
- Wire, Cable & Related Components
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Information Labels
- Motors, Core, Case & Related Components
- Rear AC Lines
- Sensors
- Switches & Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Wire, Cable & Related Components
- Axle & Differential
- Brackets, Flanges & Hangers
- Bushings
- Carrier & Front Axles
- Front Suspension
- Hardware, Fasteners & Fittings
- Rear Suspension
- Shocks & Struts
- Stabilizer Bar & Components
- Struts & Components
- Suspension Components
- Suspension, Springs & Related Components
- Switches, Solenoids & Actuators
- Wheels
- Aero Ground Effects & Body Kits
- Brackets, Flanges & Hangers
- Bumper
- Bumper & Components - Front
- Bumper & Components - Rear
- Center Console
- Center Pillar & Rocker
- Cluster & Switches
- Console
- Control Cables
- Control Modules
- Cowl
- Dashboard
- Door & Components
- Doors
- Driver Seat Components
- Ducts
- Electrical Components
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Hood
- Exterior Trim - Lift Gate
- Exterior Trim - Pillars
- Exterior Trim - Quarter Panel
- Exterior Trim - Rear Door
- Fender & Components
- Fenders
- Floor
- Floor & Rails
- Frame
- Front Door
- Gaskets & Sealing Systems
- Gate & Hardware
- Glass - Front Door
- Glass - Lift Gate
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware
- Glass, Windows & Related Components
- Glove Box
- Grille
- Grille & Components
- Hardware, Fasteners & Fittings
- Hinge Pillar
- Hood
- Hood & Components
- Horns
- Information Labels
- Inner Structure
- Instrument Panel
- Instrument Panel Components
- Interior Trim
- Interior Trim - Front Door
- Interior Trim - Pillars
- Interior Trim - Quarter Panels
- Interior Trim - Rear Body
- Interior Trim - Rear Door
- Interior Trim - Roof
- Labels
- Liftgate
- Lock & Hardware
- Luggage Carrier
- Master Cylinder - Components On Dash Panel
- Mirrors
- Outside Mirrors
- Overhead Console
- Passenger Seat Components
- Quarter Panel
- Quarter Panel & Components
- Radiator Support
- Rear Body
- Rear Door
- Rear Floor & Rails
- Rear Seat Components
- Rocker Panel
- Roof
- Roof & Components
- Seat Belt
- Seats
- Sensors
- Side Pillar
- Sound System
- Splash Shields
- Spoiler
- Steering Wheel
- Structural Components & Rails
- Sunroof
- Switches, Solenoids & Actuators
- Tailgate & Midgate
- Trailer Hitch Components
- Truck Box
- Trunk Lid & Compartment
- Uniside
- Universal
- Wiper & Washer Components
- Wire, Cable & Related Components
- ABS Components
- Anti-Lock Brakes
- Brackets, Flanges & Hangers
- Brake Components
- Brake Hydraulics
- Control Modules
- Disc Pads & Brake Shoes
- Drums & Rotors
- Front Brakes
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Hoses & Pipes
- Hydraulic System
- Parking Brake
- Rear Brakes
- Sensors
- Service Kits
- Stability Control
- Switches, Solenoids & Actuators
- ABS Components
- Air Bag Components
- Air Bag System
- Alternator
- Alternator/Generator & Related Components
- Antenna & Radio
- Anti-Theft Components
- Anti-Theft System
- Automatic Transaxle
- Backup Lamps
- Battery
- Battery & Related Components
- Brackets, Flanges & Hangers
- Bulbs - Chassis
- Communication System Components
- Control Modules
- Doors
- Electrical Components
- Electrical Connectors
- Flasher Units, Fuses, & Circuit Breakers
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Glass, Windows & Related Components
- Hardware, Fasteners & Fittings
- Headlamp Components
- Heated Seats
- High Mounted Stop Lamp
- Horn
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- Lane Departure Warning
- License Lamps
- Liftgate
- Lighting - Exterior
- Lighting - Interior
- Lumbar Control Seats
- Mirrors
- Mobile Multi-Media
- Navigation System
- Parking Aid
- Power Outlets
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Ride Control Components
- Seat Belt
- Senders
- Sensors
- Starter
- Starter & Related Components
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tail Lamps
- Tire Pressure Monitor Components
- Wipers
- Wire, Cable & Related Components
- Wiring Harness
- Air Intake
- Bearings
- Brackets, Flanges & Hangers
- Control Modules
- Cylinder Block Components
- Engine
- Engine & Trans Mounting
- Engine Appearance Cover
- Engine Parts
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Mounts
- Oil Pan
- Oil Pump
- Pumps
- Sensors
- Switches, Solenoids & Actuators
- Transaxle Parts
- Valve Train Components
- Wire, Cable & Related Components
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Information Labels
- Motors, Core, Case & Related Components
- Rear AC Lines
- Sensors
- Switches & Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Wire, Cable & Related Components
- Axle & Differential
- Brackets, Flanges & Hangers
- Bushings
- Carrier & Front Axles
- Front Suspension
- Hardware, Fasteners & Fittings
- Rear Suspension
- Shocks & Struts
- Stabilizer Bar & Components
- Struts & Components
- Suspension Components
- Suspension, Springs & Related Components
- Switches, Solenoids & Actuators
- Wheels
Browse Categories
Select category
- Aero Ground Effects & Body Kits
- Brackets, Flanges & Hangers
- Bumper
- Bumper & Components - Front
- Bumper & Components - Rear
- Center Console
- Center Pillar & Rocker
- Cluster & Switches
- Console
- Control Cables
- Control Modules
- Cowl
- Dashboard
- Door & Components
- Doors
- Driver Seat Components
- Ducts
- Electrical Components
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Hood
- Exterior Trim - Lift Gate
- Exterior Trim - Pillars
- Exterior Trim - Quarter Panel
- Exterior Trim - Rear Door
- Fender & Components
- Fenders
- Floor
- Floor & Rails
- Frame
- Front Door
- Gaskets & Sealing Systems
- Gate & Hardware
- Glass - Front Door
- Glass - Lift Gate
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware
- Glass, Windows & Related Components
- Glove Box
- Grille
- Grille & Components
- Hardware, Fasteners & Fittings
- Hinge Pillar
- Hood
- Hood & Components
- Horns
- Information Labels
- Inner Structure
- Instrument Panel
- Instrument Panel Components
- Interior Trim
- Interior Trim - Front Door
- Interior Trim - Pillars
- Interior Trim - Quarter Panels
- Interior Trim - Rear Body
- Interior Trim - Rear Door
- Interior Trim - Roof
- Labels
- Liftgate
- Lock & Hardware
- Luggage Carrier
- Master Cylinder - Components On Dash Panel
- Mirrors
- Outside Mirrors
- Overhead Console
- Passenger Seat Components
- Quarter Panel
- Quarter Panel & Components
- Radiator Support
- Rear Body
- Rear Door
- Rear Floor & Rails
- Rear Seat Components
- Rocker Panel
- Roof
- Roof & Components
- Seat Belt
- Seats
- Sensors
- Side Pillar
- Sound System
- Splash Shields
- Spoiler
- Steering Wheel
- Structural Components & Rails
- Sunroof
- Switches, Solenoids & Actuators
- Tailgate & Midgate
- Trailer Hitch Components
- Truck Box
- Trunk Lid & Compartment
- Uniside
- Universal
- Wiper & Washer Components
- Wire, Cable & Related Components
- ABS Components
- Anti-Lock Brakes
- Brackets, Flanges & Hangers
- Brake Components
- Brake Hydraulics
- Control Modules
- Disc Pads & Brake Shoes
- Drums & Rotors
- Front Brakes
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Hoses & Pipes
- Hydraulic System
- Parking Brake
- Rear Brakes
- Sensors
- Service Kits
- Stability Control
- Switches, Solenoids & Actuators
- ABS Components
- Air Bag Components
- Air Bag System
- Alternator
- Alternator/Generator & Related Components
- Antenna & Radio
- Anti-Theft Components
- Anti-Theft System
- Automatic Transaxle
- Backup Lamps
- Battery
- Battery & Related Components
- Brackets, Flanges & Hangers
- Bulbs - Chassis
- Communication System Components
- Control Modules
- Doors
- Electrical Components
- Electrical Connectors
- Flasher Units, Fuses, & Circuit Breakers
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Glass, Windows & Related Components
- Hardware, Fasteners & Fittings
- Headlamp Components
- Heated Seats
- High Mounted Stop Lamp
- Horn
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- Lane Departure Warning
- License Lamps
- Liftgate
- Lighting - Exterior
- Lighting - Interior
- Lumbar Control Seats
- Mirrors
- Mobile Multi-Media
- Navigation System
- Parking Aid
- Power Outlets
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Ride Control Components
- Seat Belt
- Senders
- Sensors
- Starter
- Starter & Related Components
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tail Lamps
- Tire Pressure Monitor Components
- Wipers
- Wire, Cable & Related Components
- Wiring Harness
- Air Intake
- Bearings
- Brackets, Flanges & Hangers
- Control Modules
- Cylinder Block Components
- Engine
- Engine & Trans Mounting
- Engine Appearance Cover
- Engine Parts
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Mounts
- Oil Pan
- Oil Pump
- Pumps
- Sensors
- Switches, Solenoids & Actuators
- Transaxle Parts
- Valve Train Components
- Wire, Cable & Related Components
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Information Labels
- Motors, Core, Case & Related Components
- Rear AC Lines
- Sensors
- Switches & Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Wire, Cable & Related Components
- Axle & Differential
- Brackets, Flanges & Hangers
- Bushings
- Carrier & Front Axles
- Front Suspension
- Hardware, Fasteners & Fittings
- Rear Suspension
- Shocks & Struts
- Stabilizer Bar & Components
- Struts & Components
- Suspension Components
- Suspension, Springs & Related Components
- Switches, Solenoids & Actuators
- Wheels
- Aero Ground Effects & Body Kits
- Brackets, Flanges & Hangers
- Bumper
- Bumper & Components - Front
- Bumper & Components - Rear
- Center Console
- Center Pillar & Rocker
- Cluster & Switches
- Console
- Control Cables
- Control Modules
- Cowl
- Dashboard
- Door & Components
- Doors
- Driver Seat Components
- Ducts
- Electrical Components
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Hood
- Exterior Trim - Lift Gate
- Exterior Trim - Pillars
- Exterior Trim - Quarter Panel
- Exterior Trim - Rear Door
- Fender & Components
- Fenders
- Floor
- Floor & Rails
- Frame
- Front Door
- Gaskets & Sealing Systems
- Gate & Hardware
- Glass - Front Door
- Glass - Lift Gate
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware
- Glass, Windows & Related Components
- Glove Box
- Grille
- Grille & Components
- Hardware, Fasteners & Fittings
- Hinge Pillar
- Hood
- Hood & Components
- Horns
- Information Labels
- Inner Structure
- Instrument Panel
- Instrument Panel Components
- Interior Trim
- Interior Trim - Front Door
- Interior Trim - Pillars
- Interior Trim - Quarter Panels
- Interior Trim - Rear Body
- Interior Trim - Rear Door
- Interior Trim - Roof
- Labels
- Liftgate
- Lock & Hardware
- Luggage Carrier
- Master Cylinder - Components On Dash Panel
- Mirrors
- Outside Mirrors
- Overhead Console
- Passenger Seat Components
- Quarter Panel
- Quarter Panel & Components
- Radiator Support
- Rear Body
- Rear Door
- Rear Floor & Rails
- Rear Seat Components
- Rocker Panel
- Roof
- Roof & Components
- Seat Belt
- Seats
- Sensors
- Side Pillar
- Sound System
- Splash Shields
- Spoiler
- Steering Wheel
- Structural Components & Rails
- Sunroof
- Switches, Solenoids & Actuators
- Tailgate & Midgate
- Trailer Hitch Components
- Truck Box
- Trunk Lid & Compartment
- Uniside
- Universal
- Wiper & Washer Components
- Wire, Cable & Related Components
- ABS Components
- Anti-Lock Brakes
- Brackets, Flanges & Hangers
- Brake Components
- Brake Hydraulics
- Control Modules
- Disc Pads & Brake Shoes
- Drums & Rotors
- Front Brakes
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Hoses & Pipes
- Hydraulic System
- Parking Brake
- Rear Brakes
- Sensors
- Service Kits
- Stability Control
- Switches, Solenoids & Actuators
- ABS Components
- Air Bag Components
- Air Bag System
- Alternator
- Alternator/Generator & Related Components
- Antenna & Radio
- Anti-Theft Components
- Anti-Theft System
- Automatic Transaxle
- Backup Lamps
- Battery
- Battery & Related Components
- Brackets, Flanges & Hangers
- Bulbs - Chassis
- Communication System Components
- Control Modules
- Doors
- Electrical Components
- Electrical Connectors
- Flasher Units, Fuses, & Circuit Breakers
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Glass, Windows & Related Components
- Hardware, Fasteners & Fittings
- Headlamp Components
- Heated Seats
- High Mounted Stop Lamp
- Horn
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- Lane Departure Warning
- License Lamps
- Liftgate
- Lighting - Exterior
- Lighting - Interior
- Lumbar Control Seats
- Mirrors
- Mobile Multi-Media
- Navigation System
- Parking Aid
- Power Outlets
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Ride Control Components
- Seat Belt
- Senders
- Sensors
- Starter
- Starter & Related Components
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tail Lamps
- Tire Pressure Monitor Components
- Wipers
- Wire, Cable & Related Components
- Wiring Harness
- Air Intake
- Bearings
- Brackets, Flanges & Hangers
- Control Modules
- Cylinder Block Components
- Engine
- Engine & Trans Mounting
- Engine Appearance Cover
- Engine Parts
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Mounts
- Oil Pan
- Oil Pump
- Pumps
- Sensors
- Switches, Solenoids & Actuators
- Transaxle Parts
- Valve Train Components
- Wire, Cable & Related Components
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Information Labels
- Motors, Core, Case & Related Components
- Rear AC Lines
- Sensors
- Switches & Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Wire, Cable & Related Components
- Axle & Differential
- Brackets, Flanges & Hangers
- Bushings
- Carrier & Front Axles
- Front Suspension
- Hardware, Fasteners & Fittings
- Rear Suspension
- Shocks & Struts
- Stabilizer Bar & Components
- Struts & Components
- Suspension Components
- Suspension, Springs & Related Components
- Switches, Solenoids & Actuators
- Wheels
Seats for 2018 Buick Envision
2
- $10.19 CADHeadrest GuideGM2016-20, 40% seat, with button, chestnut. Seat back-40% side. mink. Seat back-60% side. mink.
- $10.19 CADHeadrest GuideGM2016-20, 40% seat, with button, neutral. 2016-20, 60% seat, without button, neutral.
- $47.22 CADHeadrest GuideGM2016-20, 40% seat, without button, neutral.
- $23.33 CADHeadrest GuideGM
No.
Part # / Description / Price
Price
1
MSRP $166.53 CAD
$122.89 CAD
2
Headrest Guide 
GM
GM Notes: PARTS: Order by application.
Description: 2016-20, 40% seat, with button, chestnut. Seat back-40% side. mink. Seat back-60% side. mink.
MSRP $13.84 CAD
$10.19 CAD
MSRP $13.84 CAD
$10.19 CAD
2
Headrest Guide GM
GM Notes: PARTS: Order by application.
Description: 2016-20, 40% seat, with button, neutral. 2016-20, 60% seat, without button, neutral.
MSRP $13.84 CAD
$10.19 CAD
MSRP $13.84 CAD
$10.19 CAD
2
Headrest Guide GM
GM Notes: PARTS: Order by application.
Description: 2016-20, 40% seat, without button, neutral.
MSRP $63.99 CAD
$47.22 CAD
MSRP $63.99 CAD
$47.22 CAD
2
MSRP $31.61 CAD
$23.33 CAD
3
Seat Back Cover GM
GM Notes: PARTS: Order by application.
Description: 2016-20, 40% seat, cloth, neutral.
MSRP $340.72 CAD
$240.97 CAD
MSRP $340.72 CAD
$240.97 CAD
16
Outer Finish Panel GM
GM Notes: PARTS: Order by application.
Description: 2016-20, 40% seat, black.
MSRP $49.78 CAD
$36.73 CAD
MSRP $49.78 CAD
$36.73 CAD