1981 Dodge Diplomat Oil Filters

Your 1981 Dodge Diplomat might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Oil Filters you desperately need.

We currently carry 12 Oil Filters to choose from for your 1981 Dodge Diplomat, and our inventory prices range from as little as $5.29 up to $15.99.

On top of low prices, Advance Auto Parts offers 7 different trusted brands of Oil Filters for the 1981 Dodge Diplomat. We only sell parts from trusted brands like Purolator so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 6,512 reviews on our Oil Filters for the 1981 Dodge Diplomat from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Oil Filters stock in-person!

Oil Filters for Your 1981 Dodge Diplomat

Carquest Standard – Oil Filter: Ideal for Conventional Oil, Protection up to 5,000 Miles (Part No.R85085)

Oil Filter: Ideal for Conventional Oil, Protection up to 5,000 Miles

from

$5.49
Carquest Standard oil filters are designed to meet the original equipment (O.E.) specifications and the requirements for maintaining new vehicle warranties. Our oil filters use nitrile sealing gaskets and solid steel baseplates to prevent oil leaks. Carquest Standard oil filters feature cellulose media for increased efficiency at capturing dirt and debris. Each Carquest Standard oil filter is built with rugged components for durability and utilizes multifiber, high-density media for optimal engine protection up to 5,000 miles.

Product Features:
  • Protection for up to 5,000 miles
  • Cellulose media provides 95.1% efficiency at 20 Microns for increased engine protection
  • Nitrile anti-drain back valve for engine start-up protection
  • Lathe cut nitrile sealing gasket prevents leaks
  • Double fluted spiral wound center tube allows maximum flow and provides additional strength
  • Solid steel baseplate provides additional strength to resist leakage
  • Meets requirements for maintaining new vehicle warranties
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Purolator ONE – Oil Filter: Ideal for High Mileage & Synthetic Oil, Protects to 15,000 miles (Part No.PL14670)

Oil Filter: Ideal for High Mileage & Synthetic Oil, Protects to 15,000 miles

from

$10.99
PurolatorONE Oil Filters keep engines operating at peak performance with up to 99% Dirt Removal Power. Available for most domestic and import applications, PurolatorONE optimizes engine life for up to 15,000 miles of advanced protection for most vehicles on the road today. Made with a high-density synthetic blend filter media and wear-resistant metal end caps, PurolatorONE maintains its integrity and filtering capabilities between oil changes. PurolatorONE is ideal for a wide range of tough driving conditions, including towing, stop and go traffic, commuting and harsh weather conditions. Offers advanced engine protection, especially when used with all synthetic and high mileage oils.

Product Features:
  • Up to 15,000 miles – advanced engine protection
  • Ideal for all synthetic and high mileage oils
  • 99% Dirt Removal Power
  • High-density synthetic blend media
  • Silicone anti-drainback valve prevents dry starts
  • PTFE treated gasket; Heat resistant – stays flexible for advanced leak protection
  • Metal end caps provide stability and integrity for greater wear resistance
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Carquest Premium – Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles (Part No.85085)

Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles

from

$7.79
Carquest Premium oil filters are built for durability, utilizing enhanced components to protect engines for the extended drain intervals of modern vehicles using conventional or synthetic lubricants. Our oil filters are built with synthetic blend media that provides 2X the capacity and up to 10,000 miles of protection. Carquest Premium filters feature silicone sealing gaskets for better performance in extreme temperatures. Carquest Premium oil filters meet or exceed original equipment (O.E.) specifications and meet the requirements for maintaining a new vehicle warranty.

Product Features:
  • Protection for up to 10,000 miles
  • Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters
  • Solid metal end caps are designed to be long lasting
  • Silicone anti-drain back valve for engine start-up protection
  • Heavy-duty steel baseplate provides additional strength to resist leakage
  • Heavy gauge steel canister withstands high pressure operating conditions
  • Silicone sealing gasket performs better in extreme temperature conditions and longer drain intervals (silicone gasket is new feature introduced as a running change)
  • Meets requirements for maintaining new vehicle warranties
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PurolatorBOSS – Oil Filter: Ideal for Full Synthetic Oil, Protects up to 20,000 miles (Part No.PBL14670)

Oil Filter: Ideal for Full Synthetic Oil, Protects up to 20,000 miles

from

$15.99
PurolatorBOSS Premium Oil Filters are the next generation in oil filtration, delivering maximum engine protection for up to 20,000 miles. PurolatorBOSS exclusively features SmartFUSION Technology – a full synthetic filter media with reinforced polymer mesh backing for over 99% Dirt Removal Power. Engineered to work well with all oil types and viscosities, especially full synthetic oil, PurolatorBOSS is ideal for the most demanding driving conditions, including frequent towing and hauling, stop and go traffic, long commutes, long idle periods and extreme climates. Its rugged internal construction withstands wear and high mileage with a heavy duty BOSS Steel Casing and an innovative double helix, high-flow center tube for twice the strength of traditional side-seam designed center tubes. Widely available for most vehicles on the road today, PurolatorBOSS combines the latest filter technologies for long-lasting protection and advanced engine performance.

Product Features:
  • Up to 20,000 miles – maximum engine protection
  • Ideal for full synthetic oils
  • Over 99% Dirt Removal Power
  • SmartFUSION Technology – a full synthetic filter media with reinforced polymer mesh backing for expanded dirt holding capacity
  • Silicone anti-drainback valve prevents dry starts
  • BOSS Steel Casing withstands extreme pressure while metal end-caps enhance durability
  • PuroSEAL Gasket made from ethylene-acrylic for maximum leak protection
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Mobil 1 – Extended Performance Oil Filter (Part No.M1-204)

Extended Performance Oil Filter

from

$14.99
The Mobil1 Extended Performance Oil Filter utilizes synthetic fibers to leave your vehicle with cleaner oil and an engine that performs better and lasts longer. When used with Mobil 1 fully synthetic motor oil, this filter offers dependable protection for your engine.

Product Features:
  • Designed for today’s longer service intervals.
  • Advanced synthetic fiber-blend filter media for enhanced contaminant removal.
  • High-capacity design stores an increased amount of contaminants.
  • Reduces resistance to oil flow while improving filter efficiency.
  • Withstands up to 5x the normal system operating pressure.
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ACDelco – Oil Filter: Ideal for Any Type Oil, Same Filter Installed From The Factory (Part No.PF53)

Oil Filter: Ideal for Any Type Oil, Same Filter Installed From The Factory

from

$11.99
ACDelco GM Original Equipment Engine Oil Filters are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These filters help ensure a clean supply of oil to engine components. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:
  • Helps keep abrasive particles away from bearings and other engine hydraulic components
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Motorcraft – Original Equipment Oil Filter: Ideal for Any Type Oil, Built To Meet Ford’s Standards (Part No.FL-300)

Original Equipment Oil Filter: Ideal for Any Type Oil, Built To Meet Ford's Standards

from

$8.79
The Motorcraft Original Equipment Oil Filter is designed, engineered and recommended by Ford Motor Company. This filter helps protect against engine wear by screening out abrasives, such as carbon, sand, dust and bits of metal before they can get into your oil.

Product Features:
  • Pressure-relief valves help minimize the chance of contaminated oil circulating back into the engine
  • Pressure-relief valves also help maintain the supply of oil to the engine under extreme cold conditions or if the filter gets clogged
  • Steel cases are “ironed” for a precise fit, fluted to ease removal and painted to resist rust
  • Efficient filter media offers increased dirt-collecting capability and ability to capture more engine-harming particles
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Carquest Standard – Oil Filter (Part No.R85068)

Oil Filter

from

$5.29
CARQUEST Standard Oil Filters give you the level of quality and application you have come to expect from the CARQUEST name.

Product Features:
  • 94.1% efficiency rating at 20 microns
  • Meets new car warranty requirements
  • Precision coil spring relief valve
  • Nitrile anti-drainback valve for engine start-up protection
  • Metal end caps
  • Cellulose/synthetic blended media
  • Internally lubricated gasket
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ACDelco – Engine Oil Filter (Part No.PF13)

Engine Oil Filter

from

$8.49
An ACDelco Professional, premium aftermarket E Oil Filter features a revolutionary design allowing the engine oil filter to function better while being lighter and more easily recycled than traditional filters. This filter fits your GM vehicle, as well as a wide range of other vehicles on the road today. Its unique element design yields more filtering area in a smaller canister. New thermal bonding techniques and non-metallic end caps improve the overall seal as well as remove wasted media rendered non-functional by adhesives used in traditional filters. This can represent as much as 15% of the total media capacity. This premium aftermarket replacement E oil filter is manufactured to meet your expectations for fit, form, and function.

Product Features:
  • Is 20-25% smaller in size, yet has more filtration media for greater capacity
  • Has 10 times more open area in the core for improved flow
  • Has a steel shell, threaded plate assembly, and leaf spring that can all be recycled
  • Has a non-metallic cartridge that can be crushed to remove oil and can then be used as an energy source
  • Has a lubricity gasket for reduced installation torque
  • Has a full cover baseplate for easy installation in blind applications
  • Has a nylon core for higher strength and better flow characteristics
  • No metallic components on ‘clean side’ of filter media, therefore eliminating possible metallic contamination
  • Injection molded nylon core increases the structural strength to almost twice that of a traditional metal core
  • Synthetic end caps are ultrasonically welded to prevent media blocked by adhesives used in traditional filters
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Mobil 1 – Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles (Part No.M1-204A)

Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles

from

$15.49
Mobil 1 Extended Performance Oil Filters are built with strong, durable components and are tested and proven to protect 2X as long as auto manufacturers recommended oil change intervals. A high-efficiency synthetic blend media removes over 99% of harmful contaminants keeping oil cleaner, longer. Enhanced nitrile gasket remains pliable to help prevent oil leaks while a durable anti-drain back valve protects against dry starts. Durable, heavy-duty filter canister withstands 9X the normal vehicle oil system operating pressure. These are just some of the advanced technologies that go into making an oil filter that can provide proven protection for up to one full year or 20,000 miles. Meets requirements of the Mobil 1 annual protection limited warranty.

Product Features:
  • Protects for 20,000 Miles or up to 1 year – GUARANTEED
  • Tested and proven to protect 2X as long as auto manufacturers’ recommended oil change intervals
  • Removes over 99% of contaminants – synthetic blend media keeps oil cleaner and holds more dirt than economy filters
  • Strong, durable components for long lasting performance
  • Premium O-ring to help prevent leaks
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Mann-Filter – Spin On Oil Filter: Ideal For Any Type of Oil (Part No.W920/17)

Spin On Oil Filter: Ideal For Any Type of Oil

from

$11.99
More and more performance, less and less consumption – in order to meet the high demands placed on modern engines, automobile manufacturers demand the absolute highest levels of performance from the engine components used. The oil circuit is of central importance here, as only clean engine oil can permanently ensure consistent engine performance. If the circulating oil is not permanently freed of impurities and combustion residues, protection from wear is no longer guaranteed. In the worst case, this may even damage the engine. If you want to play it safe when choosing an oil filter, choose MANN-FILTER. They are designed for modern high-performance oils and can stand up to even the most demanding technical challenges. As the application areas of oil filters and the demands placed on them vary, MANN-FILTER oil filters are available in different designs.

Product Features:
  • Designed for modern high-performance oils
  • Return stop valve ensures that the filter and oil channels do not empty when the engine is switched off and that oil is readily available when the engine is started
  • Bypass valve: ensures that oil is available when the engine is cold started or when the service interval has been significantly exceeded and the oil filter is very dirty
  • Release devices: enable quick and easy removal of the spin-on oil filter
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Carquest Premium – Oil Filter (Part No.85068)

Oil Filter

from

$7.49
CARQUEST Premium Oil Filters give you the level of quality and performance from the trusted CARQUEST name.

Product Features:
  • 99.5% efficiency rating at 20 microns
  • Blended media proven for up to 10,000 miles in taxi cab fleet testing
  • High efficiency and durable cellulose/synthetic blended media for longer drain intervals
  • Silicone anti-drainback valve has 3X the durability verses nitrile for engine start-up protection
  • Metal end caps
  • Internally lubricated gasket
  • Precision coil spring relief valve
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FAQs for 1981 Dodge Diplomat Oil Filters

What are the most popular Oil Filters for the 1981 Dodge Diplomat?

With 7 brands you can trust, our most popular Oil Filters for the 1981 Dodge Diplomat parts are:
Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
from $15.49
This product is not rated
Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
Oil Filters

What are the best aftermarket Oil Filters for the 1981 Dodge Diplomat?

See what past customers had to say about our highest-rated Oil Filters for the 1981 Dodge Diplomat:
Extended Performance Oil Filter
from $14.99
(87)
Extended Performance Oil Filter
“Works great”
Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles
from $7.79
(32)
Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles
“Easy to install. I was impressed that it came with a plastic covering over the opening of the filter.”
Original Equipment Oil Filter: Ideal for Any Type Oil, Built To Meet Ford's Standards
from $8.79
(4)
Original Equipment Oil Filter: Ideal for Any Type Oil, Built To Meet Ford’s Standards
“OEM fit, slightly shorter than the other “exact replacement filters to allow component clearance and easier installation. Economical for the frequent”