1984 Oldsmobile 98 Engine Blocks

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Keep Your 1984 Oldsmobile 98 in Top Shape with Quality Engine Blocks

Whether you’re repairing or upgrading your Engine Block, using high-quality parts is key to keeping your 1984 Oldsmobile 98 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Oil Caps and Oil Pump Shafts. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 1984 Oldsmobile 98 Engine Block at Advance Auto Parts is around $13.86, with a range that starts at $5.99 and goes up to $17.79. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Stock Replacement Type Oil Pump Intermediate Shaft and Oil Filler Cap start at just $5.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Block, don’t forget to check out other key components like Engine Gaskets and Seals and Engine Timing Parts. At Advance Auto Parts, we’re here to help you keep your 1984 Oldsmobile 98 in peak condition, inside and out.

Essential 1984 Oldsmobile 98 Engine Blocks

Carquest Premium – Oil Filler Cap (Part No.10077)

Oil Filler Cap

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
See More

Carquest Premium – Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10099)

Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

from

$11.99
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
See More

Carquest Premium – Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10066)

Engine Oil Filler Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

from

$6.99
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
See More

Carquest Premium – Oil Filler Cap (Part No.10109)

Oil Filler Cap

from

$13.49
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
See More

Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-22F)

Stock Replacement Type Oil Pump Intermediate Shaft

from

$17.79
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
See More

Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-54A)

Stock Replacement Type Oil Pump Intermediate Shaft

from

$14.29
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
See More

Most Popular Oil Cap for 1984 Oldsmobile 98s

Enhance your 1984 Oldsmobile 98 with this popular Oil Cap we have in stock, for $5.99.

Carquest Premium – Oil Filler Cap (Part No.10077)

Oil Filler Cap

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
See More

Best-Selling 1984 Oldsmobile 98 Oil Pump Shaft

Upgrade your 98 with our best-selling Oil Pump Shaft.

Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-22F)

Stock Replacement Type Oil Pump Intermediate Shaft

from

$17.79
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
See More

FAQs for 1984 Oldsmobile 98 Engine Blocks

What are the best-selling Engine Blocks for 1984 Oldsmobile 98s?

Out of 2 Engine Blocks that fit 1984 Oldsmobile 98s, the following parts are the top sellers:

What’s the price range for 1984 Oldsmobile 98 Engine Blocks?

The prices of Engine Blocks for the 1984 Oldsmobile 98 range from $5.99 up to $17.79 for the most premium parts.

What is the average price of an Engine Block for a 1984 Oldsmobile 98?

The average price for Engine Blocks for the 1984 Oldsmobile 98 is $13.86. Keep in mind the variety of part types within our Engine Block category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Blocks for other Oldsmobile 98 model years?

Yes, we carry Engine Blocks for 34 model years of Oldsmobile 98s between 1961 and 1996. The following model years are the most popular for Engine Block purchases: 1996, 1995, 1994, 1993, 1992, 1991, 1990, 1989, and 1988.

What are the cheapest Engine Blocks for my 1984 Oldsmobile 98?

The cheapest 1984 Oldsmobile 98 Engine Blocks we carry are:

Does Advance Auto Parts sell Engine Blocks for any other 1984 Oldsmobile models?

Yes. We stock Engine Blocks for 7 other popular 1984 Oldsmobile models. Some of the most popular are 1984 Cutlass Supreme Engine Blocks, 1984 Delta 88 Engine Blocks, 1984 Toronado Engine Blocks, 1984 Custom Cruiser Engine Blocks, and 1984 Cutlass Calais Engine Blocks.

What types of Engine Blocks do you sell for my 1984 Oldsmobile 98?

As of 6/2/26, these are some of the most in-demand types of Engine Blocks for a 1984 Oldsmobile 98:

Can I get help with 1984 Oldsmobile 98 Engine Block orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Oldsmobile Engine Blocks and more.

What is your return policy for Oldsmobile 98 Engine Blocks?

Advance Auto Parts keeps returns simple. For new Oldsmobile 98 Engine Blocks and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.