Shop O2 Sensor On 89 Ford F 250

Sponsored
About our ads
$62.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY992 - O2 Sensor
Summit Racing
172
$62.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY992 - O2 Sensor
Summit Racing
172
$33.50
$51.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1383 - O2 Sensor
Summit Racing
1
35% off
$33.50
$51.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1383 - O2 Sensor
Summit Racing
1
$74.50
$114.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1140 - O2 Sensor
Summit Racing
35% off
$74.50
$114.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1140 - O2 Sensor
Summit Racing
$165.99
Bosch Wideband Oxygen Sensor: 5 Wire, 22.83" Long, Heated, Exact Fit, 16098
Advance Auto Parts
$165.99
Bosch Wideband Oxygen Sensor: 5 Wire, 22.83" Long, Heated, Exact Fit, 16098
Advance Auto Parts
$48.99
Thread-In Bosch Premium Original Equipment Type Oxygen Sensors - 3 Wire | Bosch 13942 - O2 Sensor
Summit Racing
2
$48.99
Thread-In Bosch Premium Original Equipment Type Oxygen Sensors - 3 Wire | Bosch 13942 - O2 Sensor
Summit Racing
2
$66.99
Thread-In Bosch Premium Universal Type Oxygen Sensors - 4 Wire | Bosch 15730 - O2 Sensor
Summit Racing
$66.99
Thread-In Bosch Premium Universal Type Oxygen Sensors - 4 Wire | Bosch 15730 - O2 Sensor
Summit Racing
$42.67
$60.99
NGK NTK Upstream Oxygen (O2) Sensor For 1986-1992 Ford F-250 4.9L 5.0L 5.8L 7.5L L6 V8
Sixity Auto
30% off
$42.67
$60.99
NGK NTK Upstream Oxygen (O2) Sensor For 1986-1992 Ford F-250 4.9L 5.0L 5.8L 7.5L L6 V8
Sixity Auto
$45.99
Thread-In Bosch Premium Original Equipment Type Oxygen Sensors - 4 Wire | Bosch 15718 - O2 Sensor
Summit Racing
429
$45.99
Thread-In Bosch Premium Original Equipment Type Oxygen Sensors - 4 Wire | Bosch 15718 - O2 Sensor
Summit Racing
429
$37.50
Upstream Right Oxygen Sensor For Ford F-150 E-150 E-250 E-350 Focus
eBay
Free shipping
$37.50
Upstream Right Oxygen Sensor For Ford F-150 E-150 E-250 E-350 Focus
eBay
Free shipping
$55.92
$60.61
Brand Up & Downstream Oe Genuine Oxygen Sensor 3Pcs Set For Ford F-150
eBay
Free shipping
$55.92
$60.61
Brand Up & Downstream Oe Genuine Oxygen Sensor 3Pcs Set For Ford F-150
eBay
Free shipping
$45.48
$64.99
NGK NTK Upstream Left Oxygen (O2) Sensor For 1990-1999 Ford F-250 4.6L 5.0L 5.4L 5.8L 7.5L V8
Sixity Auto
30% off
$45.48
$64.99
NGK NTK Upstream Left Oxygen (O2) Sensor For 1990-1999 Ford F-250 4.6L 5.0L 5.4L 5.8L 7.5L V8
Sixity Auto
$42.19
$59.99
NGK NTK Upstream Oxygen (O2) Sensor For 1980-1985 Ford F-250 4.9L 5.0L 5.8L L6 V8
Sixity Auto
29% off
$42.19
$59.99
NGK NTK Upstream Oxygen (O2) Sensor For 1980-1985 Ford F-250 4.9L 5.0L 5.8L L6 V8
Sixity Auto
$76.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY835 - O2 Sensor
Summit Racing
474
$76.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY835 - O2 Sensor
Summit Racing
474
$43.55
$61.99
NGK NTK Upstream Oxygen (O2) Sensor For 1984-1986 Ford F-250 4.9L 5.0L L6 V8
Sixity Auto
29% off
$43.55
$61.99
NGK NTK Upstream Oxygen (O2) Sensor For 1984-1986 Ford F-250 4.9L 5.0L L6 V8
Sixity Auto
$62.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1401 - O2 Sensor
Summit Racing
3
$62.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1401 - O2 Sensor
Summit Racing
3
$45.48
$64.99
NGK NTK Upstream Right Oxygen (O2) Sensor For 1990-1999 Ford F-250 4.6L 5.0L 5.4L 5.8L 7.5L V8
Sixity Auto
30% off
$45.48
$64.99
NGK NTK Upstream Right Oxygen (O2) Sensor For 1990-1999 Ford F-250 4.6L 5.0L 5.4L 5.8L 7.5L V8
Sixity Auto
$42.67
$60.99
NGK NTK Upstream Oxygen (O2) Sensor For 1986-1990 Ford E-250 Econoline 4.9L 5.0L 5.8L L6 V8
Sixity Auto
30% off
$42.67
$60.99
NGK NTK Upstream Oxygen (O2) Sensor For 1986-1990 Ford E-250 Econoline 4.9L 5.0L 5.8L L6 V8
Sixity Auto
$44.99
Bosch Oxygen Sensor: 4 Wire, 12.32" Long, Heated, Exact Fit, 15124
Advance Auto Parts
$44.99
Bosch Oxygen Sensor: 4 Wire, 12.32" Long, Heated, Exact Fit, 15124
Advance Auto Parts
$139.86
4PCS O2 Oxygen Sensors For Ford F-150 F-250 5.4L F150 F250 234-4127 234-4071
eBay
Free shipping
$139.86
4PCS O2 Oxygen Sensors For Ford F-150 F-250 5.4L F150 F250 234-4127 234-4071
eBay
Free shipping
$147.55
$163.95
Thread-In Holley Sniper EFI Oxygen Sensors - 6 Wire, 6 Rectangle Female | Holley Performance Products, Inc. 554-155 - O2 Sensor
Summit Racing
54
Free shipping
10% off
$147.55
$163.95
Thread-In Holley Sniper EFI Oxygen Sensors - 6 Wire, 6 Rectangle Female | Holley Performance Products, Inc. 554-155 - O2 Sensor
Summit Racing
54
$43.99
HHGKPVX O2 Oxygen Sensor 15717 Downstream Upstream Compatible With 1990-2014 Ford F150 F250 F350 Ranger Explorer Escape Focus Mazda Tribute Mercury
Amazon.com
6
Free shipping
$43.99
HHGKPVX O2 Oxygen Sensor 15717 Downstream Upstream Compatible With 1990-2014 Ford F150 F250 F350 Ranger Explorer Escape Focus Mazda Tribute Mercury
Amazon.com
6
$173.99
DENSO Oxygen Sensor: Downstream, 4 Wire, 10.83" Long, Heated, Exact Fit, 234-4125
Advance Auto Parts
179
$173.99
DENSO Oxygen Sensor: Downstream, 4 Wire, 10.83" Long, Heated, Exact Fit, 234-4125
Advance Auto Parts
179
$37.99
Set(4) O2 Oxygen Sensors For Ford F-150 F-250 5.4L 234-4127 234-4071
eBay
17
Free shipping
$37.99
Set(4) O2 Oxygen Sensors For Ford F-150 F-250 5.4L 234-4127 234-4071
eBay
17
$45.48
$64.99
NGK NTK Upstream Oxygen (O2) Sensor For 1990-1996 Ford F-250 4.9L 5.0L L6 V8
Sixity Auto
30% off
$45.48
$64.99
NGK NTK Upstream Oxygen (O2) Sensor For 1990-1996 Ford F-250 4.9L 5.0L L6 V8
Sixity Auto
$39.96
2Pcs Oxygen Sensors For E-350 Super Duty Ford F-150 E-150 E-250
eBay
Free shipping
$39.96
2Pcs Oxygen Sensors For E-350 Super Duty Ford F-150 E-150 E-250
eBay
Free shipping
$161.99
Motorcraft O2 Sensor, DY-1185
Advance Auto Parts
199
$161.99
Motorcraft O2 Sensor, DY-1185
Advance Auto Parts
199
$39.95
TRQ 1987-89 Ford F250 Truck L6 4.9L Upstream O2 Oxygen Sensor OSA61323
1A Auto
$39.95
TRQ 1987-89 Ford F250 Truck L6 4.9L Upstream O2 Oxygen Sensor OSA61323
1A Auto
$42.95
1988-1989 Ford F-Super Duty Oxygen Sensor TRQ Upstream 88-89 Ford Oxygen Sensor
Parts Geek
$42.95
1988-1989 Ford F-Super Duty Oxygen Sensor TRQ Upstream 88-89 Ford Oxygen Sensor
Parts Geek
$189.99
Motorcraft O2 Sensor, DY-1178
Advance Auto Parts
49
$189.99
Motorcraft O2 Sensor, DY-1178
Advance Auto Parts
49
$166.99
DENSO Oxygen Sensor: Downstream, 4 Wire, 21.26" Long, Heated, Exact Fit, 234-4806
Advance Auto Parts
26
$166.99
DENSO Oxygen Sensor: Downstream, 4 Wire, 21.26" Long, Heated, Exact Fit, 234-4806
Advance Auto Parts
26
$129.99
Motorcraft O2 Sensor, DY-835
Advance Auto Parts
474
$129.99
Motorcraft O2 Sensor, DY-835
Advance Auto Parts
474
$176.99
Bosch Wideband Oxygen Sensor: 5 Wire, 14.57" Long, Heated, Exact Fit, 17287
Advance Auto Parts
62
$176.99
Bosch Wideband Oxygen Sensor: 5 Wire, 14.57" Long, Heated, Exact Fit, 17287
Advance Auto Parts
62
$30.99
Thread-In Denso Oxygen Sensors - 4 Wire, 4 Round Female | Denso Products 234-4046 - O2 Sensor
Summit Racing
2
$30.99
Thread-In Denso Oxygen Sensors - 4 Wire, 4 Round Female | Denso Products 234-4046 - O2 Sensor
Summit Racing
2
$55.48
4Pcs Up+Downstream Oxygen Sensor For 2000-2009 Ford F-250 Super Duty
eBay
Free shipping
$55.48
4Pcs Up+Downstream Oxygen Sensor For 2000-2009 Ford F-250 Super Duty
eBay
Free shipping
$41.97
1988-1989 Ford F-Super Duty Oxygen Sensor Bosch Upstream 88-89 Ford Oxygen Sensor
Parts Geek
$41.97
1988-1989 Ford F-Super Duty Oxygen Sensor Bosch Upstream 88-89 Ford Oxygen Sensor
Parts Geek
$50.62
Denso Ford F-250 Oxygen Sensor 3 Wire Universal Heated Wire Length: 11.77 1987-1992 | 234-3000
AutoNation Parts
$50.62
Denso Ford F-250 Oxygen Sensor 3 Wire Universal Heated Wire Length: 11.77 1987-1992 | 234-3000
AutoNation Parts
Ford F250 P0139: O2 Sensor Slow Response (Bank 1 -Sensor 2) | Drivetrain Resource
700r4transmissionhq.com
Ford F250 P0139: O2 Sensor Slow Response (Bank 1 -Sensor 2) | Drivetrain Resource
P0139 is a common OBDII code that occurs in many vehicles, including the Ford F250. The code is triggered when there is an issue with the response time from the oxygen (O2) sensor when switching voltage levels. The Oxygen sensors are responsible for helping the ECM meter oxygen levels in the exhaust, and helping to
Mar 9, 2019
Ford F150 Transmission Repair
Ford F150 Transmission Replace #dunkleysautorepair #fordf150 #tampamechanicshop #mobilemechanic #autorepair #carcare #tampaflorida #hillsboroughcounty #dunkleystransportcompany
0:31
Ford F150 Transmission Replace #dunkleysautorepair #fordf150 #tampamechanicshop #mobilemechanic #autorepair #carcare #tampaflorida #hillsboroughcounty #dunkleystransportcompany
TikTokdunkleysautorepair
1.3K viewsJun 8, 2023
Step by step Ford Automatic Transmission replacement Shown on F-150.
1:08:23
Step by step Ford Automatic Transmission replacement Shown on F-150.
YouTubeDanny Johnson’s Garage
48.9K viewsNov 30, 2022
(3/4) How to replace Ford F-150 automatic transmission: cambiar una transmision
17:28
(3/4) How to replace Ford F-150 automatic transmission: cambiar una transmision
YouTubeDanny Johnson’s Garage
25.1K viewsDec 3, 2017
Top videos
O2 Sensor Removal - Ford F150 Forum - Community of Ford Truck Fans
O2 Sensor Removal - Ford F150 Forum - Community of Ford Truck Fans
f150forum.com
Jul 24, 2020
Ford F-250 Super Duty bad O2 sensor symptoms, causes, and diagnosis
Ford F-250 Super Duty bad O2 sensor symptoms, causes, and diagnosis
wheelsjoint.com
Jan 3, 2022
1989 F250 fuel pump location
5:32
1989 F250 fuel pump location
YouTubeMr215Mar
14.8K viewsMay 16, 2017
Ford F150 Speed Sensor Replacement
Ford f150 Speed Sensor Problems (How You Fix It)
Ford f150 Speed Sensor Problems (How You Fix It)
greaseandgears.com
Sep 17, 2022
How to remove Vehicle Speed Sensor #vehicle #mechanic #shorts #fordperformance #ford #shorts #trend #loweringsprings #cars #mechanical #repair | Local Auto Solutions
0:15
How to remove Vehicle Speed Sensor #vehicle #mechanic #shorts #fordperformance #ford #shorts #trend #loweringsprings #cars #mechanical #repair | Local Auto Solutions
FacebookLocal Auto Solutions
1.7K views2 months ago
Ford F-150 bad wheel speed sensor symptoms - how to diagnose
Ford F-150 bad wheel speed sensor symptoms - how to diagnose
wheelsjoint.com
Jun 25, 2022
O2 Sensor Removal - Ford F150 Forum - Community of Ford Truck Fans
O2 Sensor Removal - Ford F150 Forum - Community of Ford Truck …
Jul 24, 2020
f150forum.com
Ford F-250 Super Duty bad O2 sensor symptoms, causes, and diagnosis
Ford F-250 Super Duty bad O2 sensor symptoms, causes, and di…
Jan 3, 2022
wheelsjoint.com
1989 F250 fuel pump location
5:32
1989 F250 fuel pump location
14.8K viewsMay 16, 2017
YouTubeMr215Mar
How to Replace Downstream O2 Sensor 2000-08 Ford F-150
How to Replace Downstream O2 Sensor 2000-08 Ford F-150
Aug 3, 2020
1aauto.com
Ford F-150 bad O2 sensor symptoms, causes, and diagnosis
Ford F-150 bad O2 sensor symptoms, causes, and diagnosis
Jan 3, 2022
wheelsjoint.com
How to Replace O2 Oxygen Sensor 1990-2010 Ford F-150 Truck
How to Replace O2 Oxygen Sensor 1990-2010 Ford F-150 Truck
Jul 10, 2017
1aauto.com
Ford Explorer bad O2 sensor symptoms, causes, and diagnosis
Ford Explorer bad O2 sensor symptoms, causes, and diagnosis
Jan 3, 2022
wheelsjoint.com
Ford Fiesta bad O2 sensor symptoms, causes, and diagnosis
Jan 4, 2022
wheelsjoint.com
Ford Edge bad O2 sensor symptoms, causes, and diagnosis
Jan 4, 2022
wheelsjoint.com
1:09
NTK Downstream Left Oxygen (O2) Sensor compatible with Ford F-25…
Jul 8, 2024
amazon
Help with O2 Sensors - Ford Truck Enthusiasts Forums
Feb 16, 2024
ford-trucks.com
8:17
Proper O2 Sensor Placement
58.3K viewsMay 12, 2020
YouTubeTheTuningSchool
9:44
1996 Ford F150 o2 Sensor
23.7K viewsOct 1, 2017
YouTubeChad Myers73
4:43
How to Replace an Oxygen (O2) Sensor
1.8M viewsMay 5, 2012
YouTubeCar and Driver
54:56
1988 F150 Hesitation Problem [FIX!]
314.1K viewsJan 22, 2015
YouTubeScannerDanner
6:24
O2 Sensor on Ford Truck
113.3K viewsJun 30, 2016
YouTubeЈоhn “HEADSMASHER” Daniel
6:06
1995 Ford F150 4.9l Oxygen sensor replacement!
17K viewsJan 27, 2021
YouTubeWes's Sidestory
15:14
Ford Explorer 4 0L SOHC O2 Sensor Replacement Part 1 Upstream Sen…
250.2K viewsAug 24, 2016
YouTubeAJ “Figgy” Pierce
4:57
Ford Ranger: Replacing O2 Sensors (Driver & Passenger)
19K viewsJun 10, 2017
YouTubeRoel DayMoon
7:17
Ford F-150 Oxygen / O2 Sensor Replacement
91.8K viewsNov 29, 2018
YouTubePlanetF150
5:03
How to change Oxygen (O2) sensor. Can improve gas mileage.
77.5K viewsApr 12, 2017
YouTubeScotties Hobbies
0:48
1994 Ford F150 5.8L EFI Oxygen Sensor Location
30.7K viewsFeb 15, 2013
YouTubeDean Ferraro
3:14
Using O2 Sensor Data in Diagnostics
292.3K viewsMar 29, 2020
YouTubeHunter Automotive
3:41
How to Replace Downstream O2 Oxygen Sensor 06-07 Ford Explor…
109K viewsMay 30, 2017
YouTube1A Auto: Repair Tips & Secrets Only Mechanic…
12:57
1993-1997 4.0L Ford Ranger - Oxygen Sensor Replacement
117.3K viewsFeb 8, 2014
YouTubeBMPWR
3:07
O2 Sensors is it Upstream or Downstream?
1.6M viewsMay 12, 2017
YouTube1A Auto: Repair Tips & Secrets Only Mechanic…
6:04
2004-2008 Ford F150 code P0059 O2 Sensor
63K viewsApr 11, 2019
YouTubeRandy The Car Guy
0:56
How to change Ford F-150 02 5.4l O2 sensor
11.1K viewsOct 15, 2019
YouTubetwilly1127
2:41
How to Replace Downstream O2 Sensor 2000-08 Ford F-150
60.6K viewsAug 3, 2020
YouTubeTRQ
See more videos
Static thumbnail place holder

Shop O2 Sensor On 89 Ford F 250

Sponsored
About our ads
$62.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY992 - O2 Sensor
Summit Racing
172
$62.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY992 - O2 Sensor
Summit Racing
172
$33.50
$51.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1383 - O2 Sensor
Summit Racing
1
35% off
$33.50
$51.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1383 - O2 Sensor
Summit Racing
1
$74.50
$114.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1140 - O2 Sensor
Summit Racing
35% off
$74.50
$114.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1140 - O2 Sensor
Summit Racing
$165.99
Bosch Wideband Oxygen Sensor: 5 Wire, 22.83" Long, Heated, Exact Fit, 16098
Advance Auto Parts
$165.99
Bosch Wideband Oxygen Sensor: 5 Wire, 22.83" Long, Heated, Exact Fit, 16098
Advance Auto Parts
$48.99
Thread-In Bosch Premium Original Equipment Type Oxygen Sensors - 3 Wire | Bosch 13942 - O2 Sensor
Summit Racing
2
$48.99
Thread-In Bosch Premium Original Equipment Type Oxygen Sensors - 3 Wire | Bosch 13942 - O2 Sensor
Summit Racing
2
$66.99
Thread-In Bosch Premium Universal Type Oxygen Sensors - 4 Wire | Bosch 15730 - O2 Sensor
Summit Racing
$66.99
Thread-In Bosch Premium Universal Type Oxygen Sensors - 4 Wire | Bosch 15730 - O2 Sensor
Summit Racing
$42.67
$60.99
NGK NTK Upstream Oxygen (O2) Sensor For 1986-1992 Ford F-250 4.9L 5.0L 5.8L 7.5L L6 V8
Sixity Auto
30% off
$42.67
$60.99
NGK NTK Upstream Oxygen (O2) Sensor For 1986-1992 Ford F-250 4.9L 5.0L 5.8L 7.5L L6 V8
Sixity Auto
$45.99
Thread-In Bosch Premium Original Equipment Type Oxygen Sensors - 4 Wire | Bosch 15718 - O2 Sensor
Summit Racing
429
$45.99
Thread-In Bosch Premium Original Equipment Type Oxygen Sensors - 4 Wire | Bosch 15718 - O2 Sensor
Summit Racing
429
$37.50
Upstream Right Oxygen Sensor For Ford F-150 E-150 E-250 E-350 Focus
eBay
Free shipping
$37.50
Upstream Right Oxygen Sensor For Ford F-150 E-150 E-250 E-350 Focus
eBay
Free shipping
$55.92
$60.61
Brand Up & Downstream Oe Genuine Oxygen Sensor 3Pcs Set For Ford F-150
eBay
Free shipping
$55.92
$60.61
Brand Up & Downstream Oe Genuine Oxygen Sensor 3Pcs Set For Ford F-150
eBay
Free shipping
$45.48
$64.99
NGK NTK Upstream Left Oxygen (O2) Sensor For 1990-1999 Ford F-250 4.6L 5.0L 5.4L 5.8L 7.5L V8
Sixity Auto
30% off
$45.48
$64.99
NGK NTK Upstream Left Oxygen (O2) Sensor For 1990-1999 Ford F-250 4.6L 5.0L 5.4L 5.8L 7.5L V8
Sixity Auto
$42.19
$59.99
NGK NTK Upstream Oxygen (O2) Sensor For 1980-1985 Ford F-250 4.9L 5.0L 5.8L L6 V8
Sixity Auto
29% off
$42.19
$59.99
NGK NTK Upstream Oxygen (O2) Sensor For 1980-1985 Ford F-250 4.9L 5.0L 5.8L L6 V8
Sixity Auto
$76.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY835 - O2 Sensor
Summit Racing
474
$76.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY835 - O2 Sensor
Summit Racing
474
$43.55
$61.99
NGK NTK Upstream Oxygen (O2) Sensor For 1984-1986 Ford F-250 4.9L 5.0L L6 V8
Sixity Auto
29% off
$43.55
$61.99
NGK NTK Upstream Oxygen (O2) Sensor For 1984-1986 Ford F-250 4.9L 5.0L L6 V8
Sixity Auto
$62.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1401 - O2 Sensor
Summit Racing
3
$62.99
Thread-In Motorcraft Oxygen Sensors | Motorcraft DY1401 - O2 Sensor
Summit Racing
3
$45.48
$64.99
NGK NTK Upstream Right Oxygen (O2) Sensor For 1990-1999 Ford F-250 4.6L 5.0L 5.4L 5.8L 7.5L V8
Sixity Auto
30% off
$45.48
$64.99
NGK NTK Upstream Right Oxygen (O2) Sensor For 1990-1999 Ford F-250 4.6L 5.0L 5.4L 5.8L 7.5L V8
Sixity Auto
$42.67
$60.99
NGK NTK Upstream Oxygen (O2) Sensor For 1986-1990 Ford E-250 Econoline 4.9L 5.0L 5.8L L6 V8
Sixity Auto
30% off
$42.67
$60.99
NGK NTK Upstream Oxygen (O2) Sensor For 1986-1990 Ford E-250 Econoline 4.9L 5.0L 5.8L L6 V8
Sixity Auto
$44.99
Bosch Oxygen Sensor: 4 Wire, 12.32" Long, Heated, Exact Fit, 15124
Advance Auto Parts
$44.99
Bosch Oxygen Sensor: 4 Wire, 12.32" Long, Heated, Exact Fit, 15124
Advance Auto Parts