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2003 P42 Step Van

2003 P42 Step Van

Shop for Original Workhorse Custom Chassis Replacement Parts from an Authorized Workhorse Parts Dealer here. If you do not see what you are looking for here, please use the Contact Form and we would be happy to assist you to get the part(s) you need. (Please provide your VIN# and a detailed description of what you are looking for.)

Genuine Workhorse Parts

This year applies if the 10th digit of the VIN is "3"


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W0007440 - Lever Asm - Parking Brake (Foot)

W0007440  -  Lever Asm - Parking Brake (Foot)  ..

$645.96 $215.13

W0007657 - Workhorse Fan Blade Asm (with Clutch)

Part# W0007657 Description: Workhorse W-Series Fan Blade Asm (With Clutch)Engine fan c..

$481.75 $398.11

W0008668 - (Hydro-Boost) Power Brake Booster Asm (P42 JB8 / W42 JM3 Brake Code) Out of Stock

W0008668 - (Hydro-Boost) Power Brake Booster Asm (P42 JB8 / W42 JM3 Brake Code)

Part # W0008668Special Note: We are not able to ship this part internationally. Description: F..

$622.08 $647.68

W0008669 - (Hydro-Boost) Power Brake Booster Asm (P42 JF9 / W42 JM6 Brake Code)

Part # W0008669Special Note: We are not able to ship this part internationally. Description: T..

$856.58 $652.14

W0010400  -  Arm - Pitman Out of Stock

W0010468 - Tank Asm - Gas 40 Gal w/ Aux Draw

TANK ASM-GAS 40 GAL W/AUXIf vehicle has original formed metal tank and don't need auxiliary draw, th..

$1,738.23 $1,287.58

W0011704 - Dual Catalytic Converter Assembly (L31 - 5.7L & 4.8L & 6.0L & L29 - 7.4L)

Part # W0011704 Description: This is a Brand New Workhorse Dual Catalytic Converter Assembly. ..

$4,050.88 $2,133.45

W0011866 - Shroud - Radiator Fan Upper

W0011866  -  Shroud - Radiator Fan Upper ..

$115.90 $85.85

W0011905 - Shroud - Radiator Fan Lower

W0011905  -  Shroud - Radiator Fan Lower ..

$115.90 $85.85

W0012318 - Muffler Asm - Exhaust With Hangers

W0012318  -  Muffler Asm - Exhaust With Hangers ..

$1,169.22 $1,327.51

W0013351 - Standard In/Out Fuel Filter

W0013351 Description: This is a Standard Straight in and out Fuel Filter. To be used on Workho..

$27.97 $29.99

W0013390 - Air Cleaner Asm

W0013390  -  Air Cleaner Asm Can be substituted for part # 25169408 but the inlet duc..

$141.66 $104.93

W8000216  -  Gauge - Speedometer (L4B - 3.9L Cummins) Out of Stock

W8000236 - U-Joint Kit (Dana 1480)

W8000236  -  U-Joint Kit (Dana 1480) ..

$61.68 $81.26

W8000324 - Kit - Engine Oil Cooler Hoses, Inlet & Outlet ('98+ L57 without 5D2-Originally quick connect at radiator)

W8000324  -  KIT - ENGINE OIL COOLER HOSES, INLET & OUTLETRequires (x2) part # W800500..

$880.43 $652.17

W8000325  -  Hose Kit - Engine Oil Cooler Inlet & Outlet (1998+ L57 w/ Aux Cooler 5D2-Originally quick connect at radiator) Out of Stock

W8000325 - Hose Kit - Engine Oil Cooler Inlet & Outlet (1998+ L57 w/ Aux Cooler 5D2-Originally quick connect at radiator)

HOSE KIT ENG OIL CLR INL &OUTRequires (x2) part # W8005005 to convert from quick connect to scre..

$512.00

W8000336 - Hose Asm - Engine Oil Cooler Inlet

W8000336  -  Hose Asm - Engine Oil Cooler Inlet This hose assembly comes with THREADED ..

$188.61 $139.71

W8000444 - Key - Ignition Lock (Uncoded)

W8000444  -  Key - Ignition Lock (Uncoded) This key comes blank and must be cut to your..

$11.45 $8.48

W8000448  -  Cover- Air Cleaner Housing (L4B - 3.9L Cummins) Out of Stock

W8000448 - Cover- Air Cleaner Housing (L4B - 3.9L Cummins)

W8000448  -  Cover- Air Cleaner Housing (3.9L Cummins) ..

$145.79 $129.59

W8000480  -  Workhorse P32 Caliper Asm Front Right Hand / Rear Right Hand (NEW) Out of Stock

W8000480 - Workhorse P32 Caliper Asm Front Right Hand / Rear Right Hand (NEW)

W8000480  -  WORKHORSE P32 CALIPER ASM FRONT RIGHT HAND / REAR RIGHT HAND ..

$448.85

W8000480R - Workhorse P32/P42 JF9 Caliper All Positions (REMAN)

W8000480R  -  Workhorse P32/P42 JF9 Caliper All Positions (REMAN) ..

$248.43 $194.02

W8000501 - Gear Set - Differential Ring & Drive Pinion (4.63 Ratio)

W8000501  -  GEAR SET - DIFFERENTIAL RING & DRIVE PINION (4.63 RATIO)  ..

$2,517.76 $1,682.27

W8000502 - Injector Asm - Sequenced Multi Port

W8000502  -  Injector Asm - Sequenced Multi Port ..

$273.28 $202.43

W8000507 - Fuel Pump Module Driver Kit (L57 - 6.5L Diesel)

W8000507  -  Fuel Pump Module Driver Kit (L57 - 6.5L Diesel)  ..

$940.33 $551.69

W8000510  -  Switch - Windshield Washer & Wiper (w/ Cruise Control and Intermittent) Discontinued Part

W8000513 - Mass Air Flow Sensor

Part# W8000513 Description: This is a Brand New Workhorse Mass Air Flow Sensor Assembly. ..

$419.00 $159.41

W8000517  -  Fuel Sender Kit (L57 - 6.5L Diesel & L4B - 3.9L Cummins) Special Order - Call

W8000517 - Fuel Sender Kit (L57 - 6.5L Diesel & L4B - 3.9L Cummins)

W8000517  -  Fuel Sender Kit (L57 - 6.5L Diesel & L4B - 3.9L Cummins)..

$582.58 $283.97

W8000524 - Heated Oxygen Sensor (Post Cat)

Part# W8000524 Description: Brand New Workhorse Heated Oxygen Sensor for After the Catalyti..

$161.47 $141.42

W8000529 - Rotor - P32/P42 Front Brake (JF9 Brake Code)

W8000529  -  Rotor - P32/P42 Front Brake (JF9 Brake Code) ..

$444.65 $185.47

W8000539 - Heated Oxygen Sensor (Pre Cat)

Part# W8000539 Description: Brand New Workhorse  Heated Oxygen Sensor for Before the C..

$257.54 $172.64

W8000548  -  ABS Control Unit - ABS, Combo Valve (With Bracket) Discontinued Part

W8000548 - ABS Control Unit - ABS, Combo Valve (With Bracket)

W8000548  -  Electric Hydraulic Control Unit - ABS, Combo Valve With Bracket ..

$3,030.99 $1,708.15

W8000549 - Glow Plug Asm (L57 - 6.5L Diesel)

W8000549  -  Glow Plug Asm (6.5L Diesel) ..

$35.25 $26.11

W8000550  -  6.5L Module PCM (reman) Out of Stock

W8000550 - 6.5L Module PCM (reman)

W8000550  -  6.5L Module PCM (reman) This PCM is blank without operating system or cali..

$734.74 $845.42

W8000553 - Module Asm - Powertrain Control (Reman)

W8000553  -  Module Asm - Powertrain Control (Reman)  ..

$725.10 $881.31

W8000557 - P32/P42/W42 Propshaft Park Brake Drum Asm (with Yoke)

Part# W8000557 Description: This is a Brand New Workhorse Propshaft Park Brake Drum As..

$2,005.72 $1,740.98

W8000566 - Lower Dipstick Tube

W8000566  -  Lower Dipstick Tube ..

$55.43 $90.93