2003 Workhorse Custom Chassis P42 Engine Parts

Essential 2003 Workhorse Custom Chassis P42 Engine Parts

Spartan – Engine Cylinder Head; Chev 6.6 06-10 DRMX Head (Part No.2CX7)

Engine Cylinder Head; Chev 6.6 06-10 DRMX Head

from

$1134.99
Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:
  • All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
  • All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
  • All threads and machined surfaces are and repaired with technology that exceeds the original metal
  • Non-sealing iron surfaces painted to prevent oxidization
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Dorman – Oil Cooler Line Connector (Part No.800-705)

Oil Cooler Line Connector

from

$8.79
This engine oil cooler line connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this engine oil cooler line connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Felpro – Engine Valve Cover Gasket Set (Part No.VS 50088 R)

Engine Valve Cover Gasket Set

from

$33.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • ENGINEERED TO PERFORM — Proprietary cork-rubber formulation
  • SUPERIOR SEAL — Highly conformable to accommodate for the imperfect sealing surfaces
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
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Dorman – Crankshaft Position Sensor (Part No.917-755)

Crankshaft Position Sensor

from

$86.99
This engine crankshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:
  • Direct replacement – this engine crankshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles
  • Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dorman – Help – Coolant Bypass Seals (Part No.56390)

Coolant Bypass Seals

from

$9.99
This engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality – this gasket is made to fit and fully restore functionality after the original part fails
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Pik-a-Nut – Steel Cup Expansion Plug 1-5/8 In., Height 0.500 (Part No.362657.1)

Steel Cup Expansion Plug 1-5/8 In., Height 0.500

from

$2.29
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Engine Oil Pan: Direct Fit, Steel, Rear Sump (Part No.264-163)

Engine Oil Pan: Direct Fit, Steel, Rear Sump

from

$262.99
Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this engine oil pan is made to match the original pan on specific vehicles
  • Complete assembly – includes replacement pan and drain plugs to match original components
  • Durable design – high-strength coating prevents future corrosion
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
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Dorman – Harmonic Balancer Pulley (Part No.594-530)

Harmonic Balancer Pulley

from

$45.99
This engine harmonic balancer pulley is designed to match the fit and function of the original pulley on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this engine harmonic balancer pulley is designed to match the fit and function of the original pulley on specified applications
  • Restores functionality – reliable replacement for an original pulley that has failed due to vibration
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Harmonic Balancer Bolt (Part No.917-139)

Harmonic Balancer Bolt

from

$8.49
This engine harmonic balancer bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine harmonic balancer bolt matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bolt is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Spartan – Engine Long Block; Isuzu NPR 350 96-2002 Engine (Part No.DCCT)

Engine Long Block; Isuzu NPR 350 96-2002 Engine

from

$2482.99
Remanufactured Engines are fully disassembled; heads, blocks, cranks & cams are machined & wear parts are replaced. Each engine is individually tested after assembly to assure compression, oil pressure and water jacket integrity.

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your first?
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
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Dorman – Help – Engine Oil Dipstick: Direct Replacement, Stainless Steel (Part No.917-411)

Engine Oil Dipstick: Direct Replacement, Stainless Steel

from

$26.99
This engine oil dipstick is designed to match the fit and function of an original equipment dipstick in specified applications. Level marks are clearly distinguished and properly gauged for accuracy.

Product Features:
  • Ideal replacement – this engine oil dipstick is designed to match the fit and function of an original equipment dipstick in specified applications
  • Ideal solution – level marks are clearly distinguished and properly gauged for accuracy
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dorman – Harmonic Balancer Assembly (Part No.594-121)

Harmonic Balancer Assembly

from

$70.99
This direct replacement harmonic balancer features a stress-resistant rubber bond to properly absorb engine vibration. Stringent standards help ensure excellent tensile and impact strength for greater durability.

Product Features:
  • Ideal replacement – this harmonic balancer assembly exactly matches the fit and function of the original harmonic balancer for a direct replacement
  • Durable construction – stringent specifications and careful construction help ensure longevity
  • Thoroughly tested – this harmonic balancer has undergone dimensional verification, material validation and functional testing
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dorman – Valve Covers: With Gasket, Direct Replacement, Aluminum, Driver Side (Part No.264-965)

Valve Covers: With Gasket, Direct Replacement, Aluminum, Driver Side

from

$184.99
This replacement valve cover matches the fit and function of the original equipment part that may be damaged or warped. Made from quality materials for excellent fit and superior heat resistance, this valve cover has undergone extensive testing.

Product Features:
  • Direct replacement – this valve cover matches the original equipment part for fit and function
  • Durable construction – this valve cover is made of quality materials to withstand extreme temperatures to resist leaking
  • Cost-effective solution – offers original equipment performance at competitive price
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and reliable service
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Dorman – Valve Covers: With Gasket, Direct Replacement, Stamped Steel, Passenger Side (Part No.264-986)

Valve Covers: With Gasket, Direct Replacement, Stamped Steel, Passenger Side

from

$185.99
This replacement valve cover matches the fit and function of the original equipment part that may be damaged or warped. Made from quality materials for excellent fit and superior heat resistance, this valve cover has undergone extensive testing.

Product Features:
  • Direct replacement – this valve cover matches the original equipment part for fit and function
  • Durable construction – this valve cover is made of quality materials to withstand extreme temperatures to resist leaking
  • Cost-effective solution – offers original equipment performance at competitive price
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and reliable service
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Dorman – Steel Cup Expansion Plug 1-5/8 In., Height 0.500 (sold by each) (Part No.555-030)

Steel Cup Expansion Plug 1-5/8 In., Height 0.500 (sold by each)

from

$1.49
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Steel Cup Expansion Plug 1-5/8 In., Height 0.500 (Part No.555-030.1)

Steel Cup Expansion Plug 1-5/8 In., Height 0.500

from

$2.79
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Timing Cover Kit (Part No.635-522)

Timing Cover Kit

from

$102.99
This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:
  • Direct replacement – this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction – this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution – offers original equipment quality at a competitive price
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
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Dorman – Timing Cover With Gasket And Seal (Part No.635-505)

Timing Cover With Gasket And Seal

from

$39.49
This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:
  • Direct replacement – this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction – this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution – offers original equipment quality at a competitive price
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
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Dorman – Wastegate Controller Solenoid (Part No.904-236)

Wastegate Controller Solenoid

from

$43.99
This turbocharger wastegate solenoid is designed to match the fit and function of the original solenoid on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this turbocharger wastegate solenoid is designed to match the fit and function of the original solenoid on specified vehicles
  • Ideal solution – this solenoid is a reliable replacement for an original part that is damaged or has failed due to fatigue, excessive heat or electrical current
  • Durable construction – this solenoid is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Help – Oil Filler Tube Grommet – GM 1991-1982 – Fits Trucks and Vans W/ 4.3z – 5.0h – 5.7k – 6.2z & 6.2j Diesel (Part No.42305)

Oil Filler Tube Grommet - GM 1991-1982 - Fits Trucks and Vans W/ 4.3z - 5.0h - 5.7k - 6.2z & 6.2j Diesel

from

$3.99
This engine oil filter tube grommet is designed to match the fit and function of the original grommet on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine oil filter tube grommet is designed to match the fit and function of the original grommet on specified vehicles
  • Restores functionality – this grommet is made to fit and fully restore part functionality after the original grommet fails
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Melling – Stock Replacement OE Type Oil Pump and Screen (Part No.M255-294S)

Stock Replacement OE Type Oil Pump and Screen

from

$167.99
Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling oil pumps use the latest in gear and gerotor

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
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Melling – Stock Replacement OE Type Oil Pump (Part No.M351)

Stock Replacement OE Type Oil Pump

from

$291.99
Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling oil pumps use the latest in gear and gerotor

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • Melling oil pumps are tested for pressure and flow under operating conditions to ensure quality
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Felpro – Oil Pan Gasket Set: PermaDry Molded Rubber, Includes Snap-Ups®, 9 Piece Set (Part No.OS 34500 R)

Oil Pan Gasket Set: PermaDry Molded Rubber, Includes Snap-Ups®, 9 Piece Set

from

$42.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SUPERIOR SEAL — Manufactured with rubber compounds to ensure a consistent and long-life seal across the entire oil pan
  • PREVENTS OVERTIGHTENING — Torque limiters help eliminate overtightening and gasket splitting and extruding (where applicable)
  • OE-STYLE REPLACEMENT GASKET — Engineered for OE-style molded rubber gasket replacement
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • ENGINEERING EXPERTISE — Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
  • ENGINEERING EXPERTISE — Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
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Felpro – Upper Oil Pan Gasket Set: PermaDry Molded Rubber, 1 Piece Set (Part No.OS 30693 R)

Upper Oil Pan Gasket Set: PermaDry Molded Rubber, 1 Piece Set

from

$66.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SUPERIOR SEAL — Manufactured with rubber compounds to ensure a consistent and long-life seal across the entire oil pan
  • PREVENTS OVERTIGHTENING — Torque limiters help eliminate overtightening and gasket splitting and extruding (where applicable)
  • OE-STYLE REPLACEMENT GASKET — Engineered for OE-style molded rubber gasket replacement
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • ENGINEERING EXPERTISE — Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
  • ENGINEERING EXPERTISE — Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
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2003 Workhorse Custom Chassis P42 Engine Parts

You count on your 2003 Workhorse Custom Chassis P42 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Engine Parts. With 29 Engine Parts ranging in price from $1.49 to $3,644.99, you’re sure to find everything you need for your 2003 Workhorse Custom Chassis P42.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 4 different brands like Felpro, Dorman, and Melling. 2003 Workhorse Custom Chassis P42 Engine Parts start as low as $1.49!

One of the best ways to find top quality OEM or aftermarket Engine Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 154 extensive product reviews on 2003 Workhorse Custom Chassis P42 Engine Parts. Some of the top-rated Engine Parts products we carry are Oil Cooler Line Connector with 3.9 stars and Engine Long Block; Chev 6.0 V8 01-07 Gas Engine with 4.6 stars.

Did we mention you can order your Engine Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Engine Parts inventory for your 2003 Workhorse Custom Chassis P42 below to get started!

Top-Rated Engine Parts Brands For Your 2003 Workhorse Custom Chassis P42

Trusted Engine Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Workhorse Custom Chassis P42 running right for years to come. In our inventory you’ll find brands like Felpro, Dorman, Melling, and even more.

Popular Felpro Engine Parts

You’ll find popular Felpro brand products across Engine Gaskets and Seals. All are waiting to get your 2003 Workhorse Custom Chassis P42 back on the road. Some of the top-rated Felpro products in these categories are:
Engine Valve Cover Gasket Set
from $33.99
(42)
Engine Valve Cover Gasket Set
Valve Cover Gaskets

FAQs for 2003 Workhorse Custom Chassis P42 Engine Parts

What are the most purchased Engine Parts for the 2003 Workhorse Custom Chassis P42?

Out of 29 Engine Parts for the 2003 Workhorse Custom Chassis P42, the most popular in our inventory are:
Harmonic Balancer Bolt
from $8.49
(8)
Harmonic Balancer Bolt
Crankshaft Bolts
Timing Cover With Gasket And Seal
from $39.49
(21)
Timing Cover With Gasket And Seal
Timing Covers

What are the top-rated 2003 Workhorse Custom Chassis P42 Engine Parts?

Top-rated Engine Parts for your 2003 Workhorse Custom Chassis P42 based on customer reviews/ratings are:
Oil Cooler Line Connector
from $11.29
(10)
Oil Cooler Line Connector
“It fits and doesn’t leak.”
Engine Long Block; Chev 6.0 V8 01-07 Gas Engine
from $3644.99
(9)
Engine Long Block; Chev 6.0 V8 01-07 Gas Engine
“Excellent Quality. You get what you pay for. I would rather pay alittle more money to know my engine has good protection. This is the only filter I ha”
Coolant Bypass Seals
from $9.99
(3)
Coolant Bypass Seals
“I noticed my coolant steam bypass tube was leaking slightly so I bought these gaskets to replace the factory ones before it got really bad. 06 Chev”