1984 Dodge Diplomat Engine Parts

Essential 1984 Dodge Diplomat Engine Parts

Mr. Gasket – Valve Cover (Part No.9806)

Valve Cover

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$81.99
Chrome plated stamped steel valve covers have a flat smooth top, with internal baffles. Tall-style cover provides extra valve train clearance. Sold as a pair. Will not fit Magnum style heads.

Product Features:
  • Fits Chrysler small block (pre-Magnum style heads)
  • Chrome plated steel
  • Tall-style covers provide extra clearance
  • Sold as a pair
  • Cadmium Plated To Resist Corrosion
  • Easy Installation
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Dorman – Pipe Plug C.S. Hex 3/8-18 Npt X 7/16 In. (sold by each) (Part No.090-028)

Pipe Plug C.S. Hex 3/8-18 Npt X 7/16 In. (sold by each)

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$1.29
This engine oil pump drain 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 oil pump drain 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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Felpro – Engine Oil Pump Cover Seal (Part No.13338)

Engine Oil Pump Cover Seal

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$1.49
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:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Sealed Power – Engine Valve Lifter (Part No.HT-2011)

Engine Valve Lifter

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$5.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Felpro – Engine Gasket Set (Part No.KS 2114)

Engine Gasket Set

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$56.99
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:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Includes all parts needed to complete the repair
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Cloyes Performance – High Performance Timing Chain (Part No.9-135)

High Performance Timing Chain

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$66.99
High Performance 3/8″ Pitch Double Roller Replacement TRUE Roller Chain. 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness. Pre-stressed to Increase Fatigue Life.

Product Features:
  • A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
  • Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • From stock replacement to high performance, Cloyes has the most complete timing chain catalog
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
  • Refer to our online catalog for detailed application-specific information
  • Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems
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National – Multi Purpose Seal (Part No.3103)

Multi Purpose Seal

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$22.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Felpro – Cylinder Head Gasket Set (Part No.HS 8553 PT-13)

Cylinder Head Gasket Set

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$69.99
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:
  • STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
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PowerBond – Premium OEM Replacement Harmonic Balancer; 180.3mm Diameter (Part No.PB1108N)

Premium OEM Replacement Harmonic Balancer; 180.3mm Diameter

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$112.99
For use on the most popular passenger car, light commercial and four-wheel drive applications, Dayco harmonic balancers use special rubber compounds to dampen and remove engine harmonics and add to engine performance. Manufactured using a premium ductile iron casting and injection bonded dampening rubber, Dayco harmonic balancers offer engine builders and technicians the highest quality replacement to standard OEM balancers, which are typically made with press inserted dampening rubber. Dayco balancers utilize both inserted and pressure-bonded rubber to provide superior bonding strength between the inner and outer balancer rings, helping minimize spin and dislocation.

Product Features:
  • Designed as premium OEM replacement balancers for serpentine and V-belt drives
  • Manufactured with ductile iron casting and injection bonded dampening rubber
  • Engineered to offer superior bonding strength between the balancer rings
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Carquest Premium – Engine Oil Filler Cap: 10098, Push Fit, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10098)

Engine Oil Filler Cap: 10098, Push Fit, Direct Fit, Provides Tight Seal, 1 Pack

from

$5.99
Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:
  • Provides proper seal to ensure leak prevention
  • Stops engine blow by
  • High quality construction
  • Meets all OEM specifications
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Cloyes Performance – High Performance Timing Set (Part No.9-3603X9)

High Performance Timing Set

from

$179.99
Billet Crankshaft Sprocket Has Nine Keyways for +/- 8 Degrees Adjustability. Both Billet Steel Sprockets are Heat Treated for Durability. TRUE Roller 0.250″ Roller Diameter Chain for Reduced Friction. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout.

Product Features:
  • The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
  • Refer to our online catalog for detailed application-specific information
  • Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.
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Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-72)

Stock Replacement Type Oil Pump Intermediate Shaft

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$77.99
A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking

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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Sealed Power – Engine Rocker Arm (Part No.R-862)

Engine Rocker Arm

from

$4.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Competition Cams – Xtreme Energy 224/230 Hydraulic Roller Cam for Chrysler 273-360 (Part No.20-811-9)

Xtreme Energy 224/230 Hydraulic Roller Cam for Chrysler 273-360

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$505.99
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts,

Product Features:
  • Excellent performance in street carbureted applications.
  • More vacuum allows an increase in duration for improved performance and assists power brakes.
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
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Felpro – Engine Timing Cover Repair Sleeve (Part No.16201)

Engine Timing Cover Repair Sleeve

from

$10.29
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:
  • Engine$aver Hardware cost-saving application
  • Repairs worn sealing surfaces to assure a leak free repair
  • Meets or exceeds all original equipment specifications
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
  • Validated for fit, form, and function
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Felpro – Oil Pan Gasket Set: Cork-Rubber, 4 Piece Set (Part No.OS 12705 C-1)

Oil Pan Gasket Set: Cork-Rubber, 4 Piece Set

from

$25.49
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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Felpro – Cylinder Head Gasket: Composite, Without Head Bolts (Part No.521 SD)

Cylinder Head Gasket: Composite, Without Head Bolts

from

$26.49
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:
  • PREMIUM MATERIALS – High-grade stainless armor enhances strength and corrosion resistance while proprietary coatings enhance sealing and anti-stick properties
  • DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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Imperial – Engine Oil Cooler (Part No.241040)

Engine Oil Cooler

from

$216.99
Product Features:
  • Imperial Swirl-Cool« engine oil cooler kit
  • Size: 1-1/2″ x 6-1/2″ x 18″
  • Heavy-duty applications
  • All except Chevrolet V8 applications
  • Universal Cooler, NOT a direct OE replacement. User to determine fitment prior to installation
  • Heavy duty applications
  • All except Chevrolet V8 applications
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MAHLE Original – Fuel Pump Gasket (Part No.D27094)

Fuel Pump Gasket

from

$1.99
MAHLE gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
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Spectre – Dipstick; Billet Handle (Part No.5744)

Dipstick; Billet Handle

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$22.79
Spectre’s gold iridite-plated finish Oil Dipsticks are available for a number of different vehicles and come in a variety of sizes, from 17 inch to 20 inches. This replacement oil dipstick has a base made to OEM specifications and markings match OEM for true accuracy, ensuring optimum fit and function. It also has a billet handle.

Product Features:
  • Markings match OEM for true accuracy
  • Base made to OEM specifications
  • Gold iridite-plated finish
  • Billet handle
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Felpro – Engine Gasket Set (Part No.FS 8553 PT-10)

Engine Gasket Set

from

$129.99
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:
  • PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
  • STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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Dorman – Chrysler Steel Expansion Plug Kit, 14 Expansion Plugs, 11 Pipe Plugs (Part No.557-014)

Chrysler Steel Expansion Plug Kit, 14 Expansion Plugs, 11 Pipe Plugs

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$9.49
The plugs in this engine expansion plug kit are designed to match the original parts on specified vehicles. Made of quality materials, this kit components are engineered for reliable performance and durability.

Product Features:
  • Direct replacement – the components in this engine expansion plug kit are designed to match the original plugs on specified years, makes and models
  • Ideal solution – this kit is a reliable replacement for original plugs that have failed due to wear
  • Durable construction – this kit 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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National – Shaft Repair Sleeve (Part No.99218)

Shaft Repair Sleeve

from

$54.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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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
See More

Melling – Engine Oil Priming Tool (Part No.PT10)

Engine Oil Priming Tool

from

$16.99
Melling Engine Oil Priming Tools were developed as a way for engine builders to safely pre-prime the engine with oil prior to the initial engine startup. The Priming tool, with the use of a standard drill circulates oil to all of the critical areas of the new engine quickly and safely.

Product Features:
  • Priming tool circulates oil through critical areas of a new engine before engine start up
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
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Felpro – Engine Valve Cover Gasket Set (Part No.VS 13395)

Engine Valve Cover Gasket Set

from

$19.99
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
See More

Felpro – Engine Conversion Gasket Set (Part No.CS 8359)

Engine Conversion Gasket Set

from

$26.49
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:
  • Conversion Sets (CS) provide every gasket for lower engine work – add a Head Set (HS) for complete engine overhaul work
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
  • Includes all the parts necessary to complete the repair unless otherwise noted
  • Includes all the parts necessary to complete the repair unless otherwise noted
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Felpro – Engine Conversion Gasket Set (Part No.CS 8553)

Engine Conversion Gasket Set

from

$26.49
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:
  • Conversion Sets (CS) provide every gasket for lower engine work – add a Head Set (HS) for complete engine overhaul work
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
  • Includes all the parts necessary to complete the repair unless otherwise noted
  • Includes all the parts necessary to complete the repair unless otherwise noted
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1984 Dodge Diplomat Engine Parts

You count on your 1984 Dodge Diplomat 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 99 Engine Parts ranging in price from $1.29 to $743.99, you’re sure to find everything you need for your 1984 Dodge Diplomat.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 19 different brands like Sealed Power, Dorman, and Felpro. 1984 Dodge Diplomat Engine Parts start as low as $1.29!

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 390 extensive product reviews on 1984 Dodge Diplomat Engine Parts. Some of the top-rated Engine Parts products we carry are Econo-Kool® Engine Oil Cooler with 4.7 stars and Premium OEM Replacement Harmonic Balancer; 180.3mm Diameter with 5.0 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 1984 Dodge Diplomat below to get started!

Top-Rated Engine Parts Brands For Your 1984 Dodge Diplomat

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 1984 Dodge Diplomat running right for years to come. In our inventory you’ll find brands like Sealed Power, Dorman, Felpro, and even more.

Popular Crankshaft Rebuilders Engine Parts

You’ll find popular Crankshaft Rebuilders brand products across Engine Kits. All are waiting to get your 1984 Dodge Diplomat back on the road. Some of the top-rated Crankshaft Rebuilders products in these categories are:
Remanufactured Crankshaft Kit
from $288.99
(1)
Remanufactured Crankshaft Kit
Engine Crankshaft Kits

FAQs for 1984 Dodge Diplomat Engine Parts

What are the most purchased Engine Parts for the 1984 Dodge Diplomat?

Out of 99 Engine Parts for the 1984 Dodge Diplomat, the most popular in our inventory are:
Engine Valve Lifter
from $5.99
(11)
Engine Valve Lifter
Engine Valve Lifters
Engine Valve Cover Gasket Set
from $29.99
(5)
Engine Valve Cover Gasket Set
Valve Cover Gaskets

What are the top-rated 1984 Dodge Diplomat Engine Parts?

Top-rated Engine Parts for your 1984 Dodge Diplomat based on customer reviews/ratings are:
Econo-Kool® Engine Oil Cooler
from $141.99
(3)
Econo-Kool® Engine Oil Cooler
“Good price perfect fit had all the parts I needed good quality”
Premium OEM Replacement Harmonic Balancer; 180.3mm Diameter
from $82.99
(2)
Premium OEM Replacement Harmonic Balancer; 180.3mm Diameter
“Product worked great for my purpose”
Valve Cover Gasket Set
from $36.49
(2)
Valve Cover Gasket Set
“looks like cork feels like rubber”