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2004 P42 Step Van

2004 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 "4"

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12550176 - Oil Filler Tube Asm Out of Stock

12550176 - Oil Filler Tube Asm

12550176 - Oil Filler Tube Asm ..

$210.72 $156.09

12550761  -  Fitting - Engine Oil Pressure Gauge Out of Stock

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) Out of Stock

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

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

$47.48 $35.17

12551384  - Engine Oil Dipstick (L31 - 5.7L) Out of Stock

12551384 - Engine Oil Dipstick (L31 - 5.7L)

Part# 12551384 Description: This is a Brand New Workhorse Engine Oil Dipstick ..

$130.21 $96.45

12551490  -  Pipe Asm - Exhaust Gas Recirculation Valve (EGR) (L31 - 5.7L) Discontinued Part

12551490 - Pipe Asm - Exhaust Gas Recirculation Valve (EGR) (L31 - 5.7L)

12551490  -  Pipe Asm - Exhaust Gas Recirculation Valve (EGR) (5.7L)   ..

$324.35 $240.26

12551505  -  Shield - Spark Plug Wire Out of Stock

12551505 - Shield - Spark Plug Wire

12551505  -  Shield - Spark Plug Wire  ..

$10.85 $11.29

12552096  -  Exhaust Manifold Bolt (L31 - 5.7L) Out of Stock

12552096 - Exhaust Manifold Bolt (L31 - 5.7L)

12552096  -  Exhaust Manifold Bolt (5.7L) ..

$4.04 $5.97

12552329  -  EGR Fitting on Exhaust Manifold (L31 - 5.7L) Discontinued Part

12552329 - EGR Fitting on Exhaust Manifold (L31 - 5.7L)

12552329  -  EGR Fitting on Exhaust Manifold (L31)  ..

$44.12 $32.68

12554030  -  Bracket Asm - Alternator & Power Steering Pump Out of Stock

12554030 - Bracket Asm - Alternator & Power Steering Pump

12554030  -  Bracket Asm - Alternator & Power Steering Pump..

$252.13 $186.76

12555806 - Gasket - Exhaust Manifold Pipe to Downpipe, LH (4.8L & 6.0L)

12555806  -  Gasket - Exhaust Manifold Pipe to Downpipe, LH (4.8L & 6.0L) ..

$32.36 $16.46

12555896  -  Gasket - EGR Valve Opening Cover Out of Stock

12555896 - Gasket - EGR Valve Opening Cover

12555896  -  Gasket - EGR Valve Opening Cover ..

$16.25 $12.04

12556031  -  Gasket - Cylinder Head (L57 - 6.5L Diesel) Out of Stock

12556031 - Gasket - Cylinder Head (L57 - 6.5L Diesel)

12556031  -  Gasket - Cylinder Head (L57 - 6.5L) ..

$112.59 $83.40

12556261  -  Block Heater (L35/L31/L18) Out of Stock

12556261 - Block Heater (L35/L31/L18)

12556261  -  Block Heater (L35/L31/L18) ..

$53.88 $27.31

12556263  -  Sensor Asm - Engine Coolant Temperature Gauge (L31 - 5.7L for Gauge) Out of Stock

12556263 - Sensor Asm - Engine Coolant Temperature Gauge (L31 - 5.7L for Gauge)

12556263  -  Sensor Asm - Engine Coolant Temperature Gauge (L31 - 5.7L for Gauge) ..

$138.11 $102.30

12557046 - Sensor Asm - Crankshaft Position (L57 - 6.5L Diesel)

12557046  -  Sensor Asm - Crankshaft Position (6.5L) ..

$190.04 $140.77

12557345  -  Crankshaft Pulley (L57 - 6.5L Diesel) Out of Stock

12557345 - Crankshaft Pulley (L57 - 6.5L Diesel)

12557345  -  Crankshaft Pulley (6.5L) ..

$474.08 $164.09

12557558  -  Oil Pan Asm Special Order - Call

12557558 - Oil Pan Asm

12557558  -  Oil Pan Asm ..

$412.48 $305.54

12558840  -  Cylinder Head Bolts (LR4/LQ4) (10 qty required) Out of Stock

12558840 - Cylinder Head Bolts (LR4/LQ4) (10 qty required)

CYLINDER HEAD BOLTS (LR4/LQ4) 1 of 3 (10 qty required)..

$8.53 $6.32

12559015 - Valve Asm - Evaporative Emissions Canister Vent Solenoid (L31/LR4/LQ4/L96)

12559015  -  Valve Asm - Evaporative Emissions Canister Vent Solenoid..

$64.35 $59.45

12559337  -  Thermostat Asm - Engine Coolant (L57 - 6.5L) Special Order - Call

12559337 - Thermostat Asm - Engine Coolant (L57 - 6.5L)

12559337  -  Thermostat Asm - Engine Coolant (L57 - 6.5L) ..

$65.84 $51.05

12560179  -  Block Heater (LQ4/LR4) Out of Stock

12560179 - Block Heater (LQ4/LR4)

12560179  -  Block Heater (LQ4/LR4) ..

$82.88 $61.39

12560223  -  Gasket - Fuel Pump Opening Cover (6.5L) Out of Stock

12560223 - Gasket - Fuel Pump Opening Cover (6.5L)

12560223  -  Gasket - Fuel Pump Opening Cover (6.5L) ..

$13.30 $9.85

12560745  -  Cylinder Head Bolts (LR4/LQ4) (4 qty required) Out of Stock

12560745 - Cylinder Head Bolts (LR4/LQ4) (4 qty required)

CYLINDER HEAD BOLTS (LR4/LQ4) 2 of 3 (4 qty required)..

$7.70 $5.70

12561092  -  Tensioner  Asm - Drive Belt (6.5L Diesel) Out of Stock

12561092 - Tensioner Asm - Drive Belt (6.5L Diesel)

12561092  -  Tensioner  Asm - Drive Belt (6.5L Diesel) ..

$171.69 $127.18

12561591 - Fuel Shutoff Solenoid Valve (L57 - 6.5L Diesel)

12561591  -  Fuel Shutoff Solenoid Valve (6.5L) ..

$602.30 $179.46

12562023  -  Tube Asm - Oil Level Indicator Extension (6.5L) Discontinued Part

12562023 - Tube Asm - Oil Level Indicator Extension (6.5L)

12562023  -  Tube Asm - Oil Level Indicator Extension (6.5L) ..

$42.82 $31.72

12562243  -  Shield - Exhaust Manifold, LH (LR4 - 4.8L & LQ4 - 6.0L) Out of Stock

12562243 - Shield - Exhaust Manifold, LH (LR4 - 4.8L & LQ4 - 6.0L)

12562243  -  Shield - Exhaust Manifold, LH (LR4 - 4.8L & LQ4 - 6.0L) ..

$55.07 $40.79

12562571 - Engine Oil Pressure Sensor

Part# 12562571 - Engine Oil Pressure Sensor   Description: Brand New Workh..

$108.77 $95.95

12563531 - Flywheel Asm (Includes Spacer and Bolts)

12563531  -  Flywheel Asm (Heavy Duty)If you only require the flywheel only, it can be pur..

$619.76 $459.08

12563532  -  Spacer - Flywheel Out of Stock

12563532 - Spacer - Flywheel

12563532  -  Spacer - Flywheel ..

$133.87 $99.16

12563902  -  Engine Oil Pan Asm (L57 - 6.5L Diesel) Out of Stock

12563902 - Engine Oil Pan Asm (L57 - 6.5L Diesel)

12563902  -  Engine Oil Pan Asm (6.5L) ..

$514.49 $381.10

12564564  -  Valve Cover Asm, LH (L57 - 6.5L Diesel) Out of Stock

12564564 - Valve Cover Asm, LH (L57 - 6.5L Diesel)

12564564  -  Valve Cover Asm, LH (6.5L) ..

$161.11 $119.34

12564565  -  Valve Cover Asm, RH (L57 - 6.5L Diesel) Out of Stock

12564565 - Valve Cover Asm, RH (L57 - 6.5L Diesel)

12564565  -  Valve Cover Asm, RH (6.5L) ..

$377.07 $279.31

12564759  -  Belt - Fan, Water Pump, Alternator, P/S Pump (L31 - 5.7L) Out of Stock

12564759 - Belt - Fan, Water Pump, Alternator, P/S Pump (L31 - 5.7L)

12564759  -  Belt - Fan, Water Pump, Alternator, P/S Pump (5.7L) ..

$90.30 $66.89

12564768  -  Oil Pump Asm w/ Screen (L57 - 6.5L Diesel) Out of Stock

12564768 - Oil Pump Asm w/ Screen (L57 - 6.5L Diesel)

12564768  -  Oil Pump Asm w/ Screen (6.5L) ..

$354.21 $185.04

12568246  -  Outlet Asm - Water (6.5L) Discontinued Part

12568246 - Outlet Asm - Water (6.5L)

12568246  -  Outlet Asm - Water (6.5L) ..

$52.68 $39.02

12570714  -  Head Asm - Cylinder (L57 - 6.5L) Out of Stock

12570714 - Head Asm - Cylinder (L57 - 6.5L)

12570714  -  Head Asm - Cylinder (6.5L) ..

$1,559.80 $1,197.24

12573337  -  Oil Filler Cap Asm (4.8L & 6.0L) Special Order - Call
12575329  -  Cylinder Head Gasket (LR4) Out of Stock

12575329 - Cylinder Head Gasket (LR4)

12575329  -  Cylinder Head Gasket (LR4) ..

$68.76 $105.79

12576447  -  Belt - A/C Compressor (LR4 - 4.8L & LQ4 - 6.0L) 3 Days Lead Time - Call
12576918  -  EGR Valve Asm (L35 4.3L & L31 5.7L) Special Order - Call
12580296  -  Tensioner Asm - Drive Belt Out of Stock

12580296 - Tensioner Asm - Drive Belt

12580296  -  Tensioner Asm - Drive Belt ..

$99.09 $78.72

12580771 - Workhorse Belt Idler Pulley

Part# 12580771 Applications: Workhorse Belt Idler Pulley ..

$59.94 $83.29

12580772 - Pulley Asm - Belt Idler (L31 - 5.7L) Out of Stock

12580772 - Pulley Asm - Belt Idler (L31 - 5.7L)

12580772 - Pulley Asm - Belt Idler (5.7L) ..

$117.90 $87.33