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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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12589227  -  Cylinder Head Gasket (LQ4) Out of Stock

12589227 - Cylinder Head Gasket (LQ4)

12589227  -  Cylinder Head Gasket (LQ4) ..

$87.49 $64.81

12589867  -  Sensor Asm - Knock (LR4 - 4.8L & LQ4 - 6.0L) Special Order - Call

12603737-WCC - Manifold Asm - Exhaust, LH 4.8L/6.0L (LQ4 6.0L, All 4.8L)

Part# 12603737-WCC - Manifold Asm - Exhaust, LH  4.8L/6.0L (LQ4 6.0L, All 4.8L) Des..

$479.61 $234.68

12603739-WCC - Manifold Asm - Exhaust, RH 4.8L/6.0L (LQ4 6.0L, All 4.8L)

12603739-WCC  -  Manifold Asm - Exhaust, RH 4.8L/6.0L (LQ4 6.0L, LY2/L20/LR4 4.8L)Descript..

$429.85 $312.49

12605677  -  Pulley - Power Steering Pump Out of Stock

12605677 - Pulley - Power Steering Pump

12605677  -  Pulley - Power Steering Pump ..

$68.28 $50.58

12617944 - Gasket - Exhaust Manifold (4.8L & 6.0L)

12617944  -  Gasket - Exhaust Manifold (4.8L & 6.0L) ..

$32.98 $24.43

12634218  -  Pulley Asm - Belt Idler (L57 - 6.5L Diesel) Out of Stock

12634218 - Pulley Asm - Belt Idler (L57 - 6.5L Diesel)

12634218  -  Pulley Asm - Belt Idler (6.5L Diesel) ..

$186.50 $138.15

13517394 - Fuel Module Pigtail for 04+ Fuel Pump Modules / Updated Connector for WH-13955 & WH-13956

13517394  -  Fuel Module Pigtail for 04+ Fuel PumpsPigtail for following fuel pump modules..

$31.55 $28.10

14005120  -  Hanger - Rear Spring, Front Out of Stock

14005120 - Hanger - Rear Spring, Front

14005120  -  Hanger - Rear Spring, Front ..

$127.97 $94.79

14022657  -  Exhaust Manifold, LH (6.5L) Special Order - Call

14022657 - Exhaust Manifold, LH (6.5L)

14022657  -  Exhaust Manifold, LH (6.5L) ..

$1,025.66 $448.80

14028922  -  Bolt - Exhaust Manifold to Head (L57 - 6.5L Diesel) Out of Stock

14028922 - Bolt - Exhaust Manifold to Head (L57 - 6.5L Diesel)

14028922  -  Bolt - Exhaust ManifoldQty 12 required. ..

$7.60 $5.63

14028923  -  Bolt - Exhaust Manifold to Head (L57 - 6.5L Diesel) Out of Stock

14028923 - Bolt - Exhaust Manifold to Head (L57 - 6.5L Diesel)

14028923  -  Bolt - Exhaust Manifold to Head (L57 - 6.5L)Qty 4 required. ..

$38.19 $28.29

14046907 - Rear Driveline U-joint Strap

14046907  -  Rear Driveline U-joint Strap ..

$17.71 $13.12

14050519  -  Duct - Air Cleaner Resonator Out of Stock

14050519 - Duct - Air Cleaner Resonator

14050519  -  Duct - Air Cleaner Resonator ..

$56.58 $41.91

14054390 - Cap - Coolant Recovery Reservoir

14054390  -  CAP - COOLANT RECOVERY RESERVOIR ..

$22.56 $23.12

14066305  -  Hose-f/injn Fuel Return Out of Stock
14066657  -  Shield - Starter Motor Heat (6.5L Diesel) Special Order - Call

14066657 - Shield - Starter Motor Heat (6.5L Diesel)

14066657  -  Shield - Starter Motor Heat (6.5L Diesel) ..

$59.83 $44.32

14072686-WCC  -  Exhaust Donut Seal (L57 - 6.5L Diesel) Out of Stock

14072686-WCC - Exhaust Donut Seal (L57 - 6.5L Diesel)

14072686-WCC  -  Exhaust Donut Seal (L57 - 6.5L Diesel)Sold Individually ..

$72.91 $54.01

14077193  -  Cylinder Heat Bolt (L57 - 6.5L Diesel) Out of Stock

14077193 - Cylinder Heat Bolt (L57 - 6.5L Diesel)

14077193  -  Cylinder Heat Bolt (L57 - 6.5L Diesel) ..

$11.23 $8.32

14089936  -  Relay Asm - Fuel Pump / Fog Lamp Out of Stock

14089936 - Relay Asm - Fuel Pump / Fog Lamp

14089936  -  Relay Asm - Fuel Pump / Fog Lamp ..

$52.08 $38.58

15015366  -  Bracket Asm - Automatic Transmission Range Selector Cable Special Order - Call

15015366 - Bracket Asm - Automatic Transmission Range Selector Cable

Bracket Asm - Automatic Transmission Range Selector Cable ..

$158.69 $117.55

15015368  -  Lever - Automatic Transmission Range Selector Out of Stock

15020339 - End Link Asm - Front Stabilizer Shaft

15020339  -  End Link Asm - Front Stabilizer Shaft  ..

$150.03 $91.78

15022084 - Auxiliary Transmission Fluid Cooler Assembly On Backorder - Call to Reserve

15022084 - Auxiliary Transmission Fluid Cooler Assembly

Part # 15022084 Description: This is a Brand New Workhorse Auxiliary Transmission Fluid Cooler..

$642.01 $475.56

15026362  -  Brace Asm - Floor and Dash Panel Outer Out of Stock

15026362 - Brace Asm - Floor and Dash Panel Outer

15026362  -  Brace Asm - Floor and Dash Panel Outer ..

$98.73 $73.13

15030173 - Hose - Radiator Lower (6.5L Diesel)

15030173  -  Hose - Radiator Lower (6.5L Diesel)..

$227.34 $192.70

15030175  -  Clutch Asm - Fan Blade Out of Stock

15030175 - Clutch Asm - Fan Blade

15030175  -  Clutch Asm - Fan Blade ..

$491.97 $129.08

15036527  -  Bracket Asm - Engine Mount Out of Stock

15036527 - Bracket Asm - Engine Mount

15036527  -  Bracket Asm - Engine Mount  ..

$171.69 $127.18

15042437  -  Alarm Asm - Seat Belt, Ignition Key, Lamps Out of Stock

15042437 - Alarm Asm - Seat Belt, Ignition Key, Lamps

15042437  -  Alarm Asm - Seat Belt, Ignition Key, Lamps ..

$77.26 $57.23

15044206  -  Crossmember - Electronic Brake Control Module Out of Stock

15044206 - Crossmember - Electronic Brake Control Module

15044206  -  Crossmember - Electronic Brake Control Module ..

$317.03 $234.84

15093974  - Exhaust Manifold Pipe Seal (L31 - 5.7L & L35 - 4.3L) Out of Stock

15093974 - Exhaust Manifold Pipe Seal (L31 - 5.7L & L35 - 4.3L)

15093974  - Exhaust Manifold Pipe Seal (L31 - 5.7L & L35 - 4.3L)..

$42.27 $31.31

15150413 - Gasket - Exhaust Manifold Pipe

15150413  -  GASKET - EXHAUST MANIFOLD PIPE  ..

$41.50 $35.89

15152632  -  Spring Asm - RH & LH Leaf, Rear 11X Leaf with 2nd Stage (4050 lbs) Out of Stock

15152632 - Spring Asm - RH & LH Leaf, Rear 11X Leaf with 2nd Stage (4050 lbs)

15152632  -  Spring Asm - RH & LH Leaf, Rear 11X Leaf with 2nd Stage (4050 lbs) ..

$755.88 $559.91

15153331 - Front Leaf Spring, Rear Hanger

Part # 15153331 Description: This is a Brand New Workhorse Front Leaf Spring Hanger for the..

$101.45 $75.15

15170285 - Exhaust Donut Seal/Gasket

Part# 15170285 Description: Brand New Workhorse Exhaust Manifold Donut Seal. This is..

$73.49 $54.44

15226252 - Mounting Asm - Engine *Green*

15226252  -  Mounting Asm - Engine *Green*..

$93.65 $69.37

15301067 - Harness Asm - Engine Wiring Harness Extension (Without Label)

15301067  -  Harness Asm - Engine Wiring Harness Extension (Without Label) ..

$185.77 $68.81

15302634  -  Harness Asm - Engine Wiring Extension (6.5L) Out of Stock

15302634 - Harness Asm - Engine Wiring Extension (6.5L)

15302634  -  Harness Asm - Engine Wiring Extension (6.5L) ..

$982.19 $727.55

15302635  -  Diesel Glow Plug Wiring Harness Asm (6.5L) Out of Stock

15302635 - Diesel Glow Plug Wiring Harness Asm (6.5L)

15302635  -  Diesel Glow Plug Wiring Harness Asm (6.5L) ..

$2,634.43 $1,241.43

15305887  -  Connector Pigtail - Park/Neutral Position and Backup Lamp Switch Out of Stock

15305887 - Connector Pigtail - Park/Neutral Position and Backup Lamp Switch

15305887  -  Connector Pigtail - Park/Neutral Position and Backup Lamp Switch ..

$198.46 $147.01

15306113  -  Connector - Mass Air Flow Sensor Special Order - Call

15306113 - Connector - Mass Air Flow Sensor

15306113  -  Connector - Mass Air Flow Sensor..

$109.08 $80.80

15311586  -  Harness Asm - Forward Lamp Wiring Out of Stock

15311586 - Harness Asm - Forward Lamp Wiring

15311586  -  Harness Asm - Forward Lamp Wiring ..

$199.02 $147.42

15320556 - Harness Asm - Diesel Glow Plug Wiring

15320556  -  Harness Asm - Diesel Glow Plug Wiring..

$491.25 $128.32

15320904  -  Wire Asm - Engine Wiring Harness Extension (6.5L) Out of Stock

15320904 - Wire Asm - Engine Wiring Harness Extension (6.5L)

15320904  -  Wire Asm - Engine Wiring Harness Extension (6.5L) ..

$173.23 $128.32