1999 Mitsubishi Diamante Differentials

Keep Your 1999 Mitsubishi Diamante in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1999 Mitsubishi Diamante looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Seals, Differential Pinion Pilot Bearings, and Differential Bearings. 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.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Valvoline and National. For example, Valvoline Differentials start at just $13.99 with an average 4.8 star rating. National offer similar pricing and quality, backed by strong customer feedback. With over 17 reviews and a solid 5 star average, you can shop with confidence knowing other Mitsubishi Diamante owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1999 Mitsubishi Diamante Differential at Advance Auto Parts is around $37.74, with a range that starts at $13.99 and goes up to $66.99. With 6 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like HMX SAE 5W-30 High-Mileage Synthetic Motor Oil (5 Quart), Bearings, and Camshaft Seal start at just $23.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Transfer Cases. At Advance Auto Parts, we’re here to help you keep your 1999 Mitsubishi Diamante in peak condition, inside and out.

Essential 1999 Mitsubishi Diamante Differentials

Driveworks – Camshaft Seal (Part No.S-99139)

Camshaft Seal

from

$23.99
Product Features:
  • Brand may vary by location
See More

National – Bearings (Part No.32010-X)

Bearings

from

$44.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Matched cup and cone components ensures consistent quality and outstanding performance
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

National – Shaft Repair Sleeve (Part No.99139)

Shaft Repair Sleeve

from

$39.99
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
See More

Valvoline – Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822389)

Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart

from

$13.99
Valvoline Import Multi-Vehicle Automatic Transmission Fluid is specifically formulated for use in most Toyota, Nissan, Honda and other imported vehicles. It is formulated with all synthetic base stocks and a proprietary additive system to ensure optimal transmission performance in a wide variety of vehicles. Valvoline Import Multi-Vehicle ATF can also be used in many domestic vehicles. It meets requirements of General Motors and Ford vehicles. Recommended for use in the following applications: Ford MERCON, GM DEXRON-II and DEXRON-III, BMW LT 71141 and ETL-7045E, Nissan/Infiniti Nissan ATF, Matic-D, Matic-K and Matic-J, Mitsubishi Diamond SP-II and SP-III, Subaru ATF-HP, Hyundai/ KIA SP-II and SP-III, Toyota/Lexus Type T, T-III and T-IV, Honda/Acura ATF-Z1 (except in CVTs), Mercedes Benz NAG1, Volvo passenger car (except AW-1), and Volkswagen/Audi TL52162. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Royal Purple – HMX SAE 5W-30 High-Mileage Synthetic Motor Oil (5 Quart) (Part No.11748)

HMX SAE 5W-30 High-Mileage Synthetic Motor Oil (5 Quart)

from

$66.99
Royal Purple HMX SAE 5W-30 High-Mileage Synthetic Motor Oil, 5 quart is specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles. Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology Synerlec, HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines. In addition, HMX is fortified with stout detergents to remove engine build-up and deposits, maintain cleanliness and promote engine longevity. 

Product Features:
  • Specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles
  • Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology
  • HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines
  • Reduces friction and metal-to-metal contact for peak engine performance
  • Also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up
See More

Valvoline – Import Multi-Vehicle Automatic Transmission Fluid, 1 Gallon (Part No.820681)

Import Multi-Vehicle Automatic Transmission Fluid, 1 Gallon

from

$36.99
Valvoline Import Multi-Vehicle Automatic Transmission Fluid is specifically formulated for use in most Toyota, Nissan, Honda and other imported vehicles. It is formulated with all synthetic base stocks and a proprietary additive system to ensure optimal transmission performance in a wide variety of vehicles. Valvoline Import Multi-Vehicle ATF can also be used in many domestic vehicles. It meets requirements of General Motors and Ford vehicles. Recommended for use in the following applications: Ford MERCON®, GM DEXRON®-II and DEXRON®-III, BMW LT 71141 and ETL-7045E, Nissan/Infiniti Nissan ATF, Matic-D, Matic-K and Matic-J, Mitsubishi Diamond SP-II and SP-III, Subaru ATF-HP, Hyundai/ KIA SP-II and SP-III , Toyota/Lexus Type T, T-III and T-IV , Honda/Acura ATF-Z1 (except in CVTs) , Mercedes Benz NAG1 , Volvo passenger car (except AW-1), and Volkswagen/Audi TL52162. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Most Popular Differential Seal for 1999 Mitsubishi Diamantes

Enhance your 1999 Mitsubishi Diamante with this popular Differential Seal we have in stock, for $39.99.

National – Shaft Repair Sleeve (Part No.99139)

Shaft Repair Sleeve

from

$39.99
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
See More

Best-Selling 1999 Mitsubishi Diamante Differential Pinion Pilot Bearing

Upgrade your Diamante with our best-selling Differential Pinion Pilot Bearing.

Driveworks – Camshaft Seal (Part No.S-99139)

Camshaft Seal

from

$23.99
Product Features:
  • Brand may vary by location
See More

Top-Quality Differential Bearings for 1999 Mitsubishi Diamantes

Choose a high-quality OEM or aftermarket Differential Bearing for Mitsubishi Diamantes and enjoy top-notch performance from $44.49.

National – Bearings (Part No.32010-X)

Bearings

from

$44.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Matched cup and cone components ensures consistent quality and outstanding performance
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Top Picks for 1999 Mitsubishi Diamante Differential Oil

Invest in one of our 3 durable Differential Oil for your 1999 Ford, knowing you’re getting trusted brands and expert craftsmanship.

Valvoline – Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822389)

Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart

from

$13.99
Valvoline Import Multi-Vehicle Automatic Transmission Fluid is specifically formulated for use in most Toyota, Nissan, Honda and other imported vehicles. It is formulated with all synthetic base stocks and a proprietary additive system to ensure optimal transmission performance in a wide variety of vehicles. Valvoline Import Multi-Vehicle ATF can also be used in many domestic vehicles. It meets requirements of General Motors and Ford vehicles. Recommended for use in the following applications: Ford MERCON, GM DEXRON-II and DEXRON-III, BMW LT 71141 and ETL-7045E, Nissan/Infiniti Nissan ATF, Matic-D, Matic-K and Matic-J, Mitsubishi Diamond SP-II and SP-III, Subaru ATF-HP, Hyundai/ KIA SP-II and SP-III, Toyota/Lexus Type T, T-III and T-IV, Honda/Acura ATF-Z1 (except in CVTs), Mercedes Benz NAG1, Volvo passenger car (except AW-1), and Volkswagen/Audi TL52162. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Valvoline – Import Multi-Vehicle Automatic Transmission Fluid, 1 Gallon (Part No.820681)

Import Multi-Vehicle Automatic Transmission Fluid, 1 Gallon

from

$36.99
Valvoline Import Multi-Vehicle Automatic Transmission Fluid is specifically formulated for use in most Toyota, Nissan, Honda and other imported vehicles. It is formulated with all synthetic base stocks and a proprietary additive system to ensure optimal transmission performance in a wide variety of vehicles. Valvoline Import Multi-Vehicle ATF can also be used in many domestic vehicles. It meets requirements of General Motors and Ford vehicles. Recommended for use in the following applications: Ford MERCON®, GM DEXRON®-II and DEXRON®-III, BMW LT 71141 and ETL-7045E, Nissan/Infiniti Nissan ATF, Matic-D, Matic-K and Matic-J, Mitsubishi Diamond SP-II and SP-III, Subaru ATF-HP, Hyundai/ KIA SP-II and SP-III , Toyota/Lexus Type T, T-III and T-IV , Honda/Acura ATF-Z1 (except in CVTs) , Mercedes Benz NAG1 , Volvo passenger car (except AW-1), and Volkswagen/Audi TL52162. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Royal Purple – HMX SAE 5W-30 High-Mileage Synthetic Motor Oil (5 Quart) (Part No.11748)

HMX SAE 5W-30 High-Mileage Synthetic Motor Oil (5 Quart)

from

$66.99
Royal Purple HMX SAE 5W-30 High-Mileage Synthetic Motor Oil, 5 quart is specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles. Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology Synerlec, HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines. In addition, HMX is fortified with stout detergents to remove engine build-up and deposits, maintain cleanliness and promote engine longevity. 

Product Features:
  • Specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles
  • Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology
  • HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines
  • Reduces friction and metal-to-metal contact for peak engine performance
  • Also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up
See More

Top-Rated Differential Brands For Your 1999 Mitsubishi Diamante

When it comes to finding the perfect Differential for your 1999 Mitsubishi Diamante, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Differential brands including Valvoline and National, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $13.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1999 Mitsubishi Diamante, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 1999 Mitsubishi Diamante Differentials

If you’re looking for a top-quality Differential for your 1999 Mitsubishi Diamante, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 2 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $13.99 and an average cost of $25.49, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1999 Mitsubishi Diamante come highly rated, with over 16 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart
from $13.99
(8)
Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart
“My 1999 Honda Accord 4-cylinder has over 250K miles and a drain and fill takes exactly 3 quarts of Import ATF. I do this with every oil change. No pro”
Import Multi-Vehicle Automatic Transmission Fluid, 1 Gallon
from $36.99
(8)
Import Multi-Vehicle Automatic Transmission Fluid, 1 Gallon
“Product works as it should”

Top-Quality National 1999 Mitsubishi Diamante Differentials

For those in search of a high-quality Differential for their 1999 Mitsubishi Diamante, Advance Auto Parts offers a great selection of National Differentials. With 1 National Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $39.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Shaft Repair Sleeve
from $39.99
(1)
Shaft Repair Sleeve
“used these speedy sleeves on the front axle of my Kubota with the wheel seals,saved me from spending 15 times more on the axle’s, Thank’s”

FAQs for 1999 Mitsubishi Diamante Differentials

What are the best-selling Differentials for 1999 Mitsubishi Diamantes?

Out of 6 Differentials that fit 1999 Mitsubishi Diamantes, the following parts are the top sellers:

What’s the price range for 1999 Mitsubishi Diamante Differentials?

The prices of Differentials for the 1999 Mitsubishi Diamante range from $13.99 up to $66.99 for the most premium parts.

What is the average price of a Differentials Differential for a 1999 Mitsubishi Diamante?

The average price for Differentials for the 1999 Mitsubishi Diamante is $37.74. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other Mitsubishi Diamante model years?

Yes, we carry Differentials for 11 model years of Mitsubishi Diamantes between 1992 and 2004. The following model years are the most popular for Differential purchases: 2004, 2003, 2002, 2001, 2000, 1998, 1997, 1996, and 1995.

What are the cheapest Differentials for my 1999 Mitsubishi Diamante?

The cheapest 1999 Mitsubishi Diamante Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1999 Mitsubishi models?

Yes. We stock Differentials for 4 other popular 1999 Mitsubishi models. Some of the most popular are 1999 Montero Differentials, 1999 Mirage Differentials, 1999 Eclipse Differentials, 1999 Galant Differentials, and 1999 3000GT Differentials.

What are the top-rated Differentials that fit the 1999 Mitsubishi Diamante?

Based on 17 reviews by customers, our 1999 Mitsubishi Diamante Differentials have an average customer rating of 5 stars. These are the highest-rated categories of Differentials for the 1999 Mitsubishi Diamante and their top-rated products:

What types of Differentials do you sell for my 1999 Mitsubishi Diamante?

As of 4/10/25, these are some of the most in-demand types of Differentials for a 1999 Mitsubishi Diamante:

Can I get help with 1999 Mitsubishi Diamante Differential orders?

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

What is your return policy for Mitsubishi Diamante Differentials?

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