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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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10226035 - Fuel Filter Asm w/ WIF Sensor (L57 - 6.5L Diesel)

10226035  -  Fuel Filter Asm w/ WIF Sensor (L57 - 6.5L Diesel) ..

$479.30 $213.22

10236997 - Bracket Asm- Drive Belt Tensioner

10236997  -  Bracket Asm- Drive Belt Tensioner ..

$163.22 $155.59

10242185  -  Hose - Water Pump Inlet (Bypass) Special Order - Call

10242185 - Hose - Water Pump Inlet (Bypass)

10242185  -  Hose - Water Pump Inlet (Bypass)  ..

$28.67 $21.24

10243855 - 5.7l Engine Oil Dipstick Tube (Lower)

Part# 10243855 Description: This is a Brand New Workhorse Engine Oil Lower Dipstick Tu..

$44.48 $53.63

10452457 - Rotor - Asm Distributor (L35-4.3L / L31-5.7L / L29-7.4L)

10452457  -  Rotor - Asm Distributor (5.7L L31, 7.4L L29) ..

$35.28 $26.13

10452459 - Marine Style Distributor Cap (L31 - 5.7L / L29 - 7.4L)

10452459  -  Marine Style Distributor Cap (L31 - 5.7L / L29 - 7.4L) ..

$153.70 $113.85

10456288  -  Knock Sensor (L31 - 5.7L) Out of Stock
10461481  -  Starter Asm 28MT (Reman) (L4B - 3.9L Cummins) Out of Stock

10461481 - Starter Asm 28MT (Reman) (L4B - 3.9L Cummins)

10461481  -  Starter Asm 28MT (L4B - 3.9L Cummins) ..

$385.00

10479642  -  Starter Asm 28MT (L4B - 3.9L Cummins) Out of Stock

10479642 - Starter Asm 28MT (L4B - 3.9L Cummins)

10479642  -  Starter Asm 28MT (L4B - 3.9L Cummins) ..

$489.55 $426.39

10485432  -  Sensor - Camshaft Position Sensor (L29 - 7.4L & L31 - 5.7L) Special Order - Call

11547135 - Exhaust Manifold Bolt to Head (4.8L / 6.0L)

Part# 11547135 Description: Brand New Workhorse Exhaust Manifold Bolt for GM En..

$13.78 $11.64

11588291 - Cylinder Head Bolts (LR4/LQ4) (16 qty required)

CYLINDER HEAD BOLTS (LR4/LQ4) 3 of 3 (16 qty required)..

$15.27 $11.31

11609658  -  Nut - Steering Wheel (Flanged) Out of Stock

11609658 - Nut - Steering Wheel (Flanged)

11609658  -  Nut - Steering Wheel (Flanged) ..

$13.89 $8.11

12153426 - Harness Asm - Fuel Sender, Extension

12153426  -  Harness Asm - Fuel Sender, Extension ..

$200.31 $148.38

12160244 - Sensor - Temperature (in Air Cleaner)

12160244  -  Sensor - Temperature (in Air Cleaner)  ..

$43.55 $32.26

12162365 - 01-05 W-Series & P-Series Fuse/relay Box Cover

12162365  -  01-05 W-Series & P-Series Fuse/relay Box Cover  ..

$40.34 $21.98

12200411 - Engine Control Module - Reman (2001-2004 M.Y. Workhorse)

12200411  -  Engine Control Module - Reman (2001-2004 M.Y. Workhorse) Description:..

$607.50 $450.00

12219931  -  Sensor Asm - Manifold Absolute Pressure (MAP) Special Order - Call
12337861  -  Stud - Exhaust Pipe (L57 - 6.5L Diesel) Out of Stock
12368063  -  Horn Kit - A Note  Special Order - Call
12375515  -  Sensor Asm - Water in Fuel (L57 - 6.5L Diesel) Special Order - Call

12375515 - Sensor Asm - Water in Fuel (L57 - 6.5L Diesel)

12375515  -  Sensor Asm - Water in Fuel (6.5L) ..

$321.58 $238.21

12381907 - Cable Asm - Automatic Transmission Range Selector Lever

 Cable Asm - Automatic Transmission Range Selector Lever ..

$482.14 $357.14

12383506  -  Upper Control Arm - Right Hand (Independent - Disc/Drum) Discontinued Part

12383506 - Upper Control Arm - Right Hand (Independent - Disc/Drum)

12383506  -  Upper Control Arm - Right Hand (Independent - Disc/Drum) ..

$467.37 $346.20

12387291 - Differential Pinion Seal

Part# 12387291 Description: Brand New Workhorse/Chevrolet Rear Differential Pinion Seal (..

$64.52 $35.01

12387297  -  Kit - Differential Ring & Drive Pinion (5.13 Ratio) (With Ring Bolts) Out of Stock

12387297 - Kit - Differential Ring & Drive Pinion (5.13 Ratio) (With Ring Bolts)

12387297  -  Kit - Differential Ring & Drive Pinion (5.13 Ratio) (With Ring Bolts) ..

$2,998.35 $2,003.38

12389921 - Rear Axle Shaft Gasket (4 Wheel Disc)

Part# 12389921 Description: Brand New Workhorse/Chevrolet Rear Axle Shaft Gasket. Ap..

$13.61 $10.08

12389922 - Retainer - Rear Outer Wheel Bearing

12389922  -  Retainer - Rear Outer Wheel Bearing ..

$97.29 $72.07

12389923  -  Shaft - Rear Axle Discontinued Part

12389923 - Shaft - Rear Axle

12389923  -  Shaft - Rear Axle ..

$581.42 $430.68

12456409 - Cylinder Head Gasket Set (L57 - 6.5L Diesel)

12456409  -  Cylinder Head Gasket Set (L57 - 6.5L) ..

$304.48 $225.54

12471641 - Gasket - Rear Axle Shaft (Disc/Drum)

12471641  -  Gasket - Rear Axle Shaft (Disc/Drum)  ..

$30.02 $22.24

12471684  -  Kit - Differential Drive Gear and Pinion Yoke (w/ Pinion Seal) Special Order - Call

12471684 - Kit - Differential Drive Gear and Pinion Yoke (w/ Pinion Seal)

12471684  -  Kit - Differential Drive Gear and Pinion Yoke (w/ Pinion Seal)Estimated 10 Da..

$335.33 $248.39

12511964 - Fuel Heater in Separator (L57 - 6.5L Diesel)

12511964  -  Fuel Heater in Separator (L57 - 6.5L Diesel) ..

$477.81 $353.93

12528913 - Cylinder Head with Seats & Studs (L31)

12528913  -  Cylinder Head with Seats & Studs (L31) ..

$1,071.00 $793.33

12531704  -  Gasket Kit - Intake Manifold (L57 - 6.5L Diesel) Out of Stock

12531704 - Gasket Kit - Intake Manifold (L57 - 6.5L Diesel)

12531704  -  Gasket Kit - Intake Manifold (6.5L) ..

$42.69 $52.55

12543176 - Case Asm - Differential

12543176  -  Case Asm - Differential ..

$478.32 $354.31

12546071 - Bearing Asm - Propshaft Center Support

12546071  -  Bearing Asm - Propshaft Center Support ..

$106.02 $78.53

12550033 - Exhaust Manifold Gasket (L31 - 5.7L)

12550033  -  Exhaust Manifold Gasket (L31 - 5.7L) ..

$47.74 $35.36

12550053 - Pulley Asm - Fan & Water Pump

12550053  -  Pulley Asm - Fan & Water Pump ..

$35.14 $26.03

12550176 - Oil Filler Tube Asm

12550176 - Oil Filler Tube Asm ..

$210.72 $156.09

12550761 - Fitting - Engine Oil Pressure Gauge

12550761  -  Fitting - Engine Oil Pressure Gauge ..

$40.74 $30.18

12550885 - Dipstick Asm - Oil Level (L57 - 6.5L Diesel)

12550885  -  Dipstick Asm - Oil Level (6.5L Diesel) ..

$47.48 $35.17