1. Commercial Truck Accessories For Sale.
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  3. VOLVO 21839987

VOLVO 21839987 Diesel Exhaust Fluid Tank

fits make: Volvo.

21839987 Volvo Diesel Exhaust Fluid Def Tank For

( Manufacturer Part Number: 21839987 ), ( Part Type: Fluid Exhaust Tank )

Review VOLVO Diesel Exhaust Fluid Def Tank

Introducing the Volvo 21839987 diesel exhaust fluid (DEF) tank, a crucial component in the selective catalytic reduction (SCR) system of Volvo D5 and D6 diesel engines. This tank is meticulously designed to store and deliver DEF fluid to the SCR system, which is essential for reducing harmful emissions.

The Volvo 21839987 DEF tank is made from high-strength, polyethylene material that ensures durability and resistance to corrosion. Its oval shape allows for optimal fluid capacity of approximately 14.5 gallons (55 liters), providing sufficient DEF fluid for extended journeys.

The tank features an integrated heating system, which plays a vital role in maintaining the DEF fluid temperature within the ideal operating range during cold weather conditions. This system ensures the DEF fluid remains in a liquid state, enabling seamless delivery to the SCR system.

The DEF tank also comes equipped with an advanced venting system that prevents pressure buildup and maintains an optimal fluid level. Moreover, it includes a filler neck with a large opening, making it effortless to refill the tank with DEF fluid when necessary.

The Volvo 21839987 DEF tank is designed to be easily accessible for maintenance purposes. It can be found in the engine compartment, near the fuel tank, and is secured in place using robust mounting brackets. Its sleek, modern design complements the overall aesthetics of Volvo vehicles.

In summary, the Volvo 21839987 diesel exhaust fluid tank is an indispensable element of the SCR system, responsible for storing and delivering DEF fluid to reduce harmful emissions. Its robust construction, advanced features, and easy accessibility make it a reliable and efficient component for Volvo D5 and D6 diesel engines.

Volvo 21839987 Diesel Exhaust Fluid (DEF) Tank: Pros and Cons

The Volvo 21839987 Diesel Exhaust Fluid (DEF) tank is an essential component of Volvo vehicles with SCR (Selective Catalytic Reduction) technology. This system helps reduce harmful emissions by converting them into harmless nitrogen and water. Here are some pros and cons of buying this DEF tank.

Pros:

1. Environmentally friendly: The DEF tank is an integral part of the SCR system, which helps reduce nitrogen oxide emissions, making the vehicle more eco-friendly.

2. Improved engine performance: The SCR system improves engine performance by reducing the amount of exhaust gas recirculated back into the engine, leading to better fuel economy and reduced engine wear.

3. Longer engine life: By reducing the amount of harmful emissions, the DEF tank helps prolong the life of the engine by reducing the wear and tear caused by these emissions.

4. Compatibility: The Volvo 21839987 DEF tank is designed specifically for Volvo vehicles, ensuring perfect fit and function.

Cons:

1. Cost: The Volvo 21839987 DEF tank can be quite expensive, especially when compared to other aftermarket parts.

2. Maintenance: The DEF tank requires regular maintenance, including filling the tank with DEF fluid and checking the tank for leaks.

3. Availability: In some areas, DEF fluid may not be readily available, making it difficult to refill the tank when needed.

4. Complexity: The SCR system, including the DEF tank, is a complex system that requires a certain level of technical expertise to install and maintain.

Conclusion:

The Volvo 21839987 Diesel Exhaust Fluid tank is an essential component of Volvo vehicles with SCR technology. While it comes with some drawbacks, such as cost and maintenance requirements, the environmental benefits and improved engine performance make it a worthwhile investment for Volvo owners.

Recommendation:

If you own a Volvo vehicle with SCR technology, it is recommended that you invest in a genuine Volvo 21839987 Diesel Exhaust Fluid tank to ensure optimal performance and longevity of your vehicle. Regular maintenance, including checking the tank for leaks and filling it with DEF fluid as needed, is also essential to ensure the tank functions properly and efficiently.

Details:

Made of high-quality components for durability, reliability, and performance. Designed specifically for trucks, trailers, and buses. Engineered using the latest technology to ensure product lasts longer in service. Manufactured following strict OE standards to work like the original component.

Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle. 21839987 Diesel Exhaust Fluid Def Tank for Volvo: Part Number: Manufacturer: Volvo.

part #: 21839987 prices

  • $360.00-$460.81

specifications coacessori:

  • for makes: Volvo
  • mpn: 21839987
  • part type: Fluid Exhaust Tank

seller coacessori:

  • city: Los Angeles, California
  • # reviews: 71128
  • rating: 99.5%

returns coacessori:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller

offer coacessori:

  • sold: 0
  • options: Ship-to-home
  • started: May 27, 2026
  • availability: In Stock
  • quantity: 1
  • best offers: True

payments coacessori:

  • credit card: Diners-club
  • other
  • wallet: Apple-pay

general coacessori:

  • Commercial Truck Parts > Accessories > Other Commercial Truck Accessories
  • condition: New

shipping coacessori:

  • cost: $0.00
  • service: Standard
  • transit: 3-7 Days
  • type: Fixed
  • class: Standard
for makes: volvo, part type: fluid exhaust tank,
category: auto parts > commercial truck parts > accessories > commercial truck accessories, sku: 6516243331569603,
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5 offers $360.00–$460.81 USD
  • Used. Offer #1 priced at $445.00 + $125.00 shipping estimate = $570.00* total. DEF Diesel Exhaust Fluid Tank Assembly For: 2023 Volvo VNL D13N 12.8L.+$125.00 shipping
  • Used. Offer #2 priced at $460.81 + $0.00 shipping estimate = $460.81* total. 'VOLVO VNM DEF TANK P/N: '.FREE SHIPPING
  • Used. Offer #3 priced at $360.00 + $275.00 shipping estimate = $635.00* total. MAKE: VOLVO. 2019 VOLVO VNL D13 425HP 12.8L ENGINE MOTOR NICE! MODEL: VNL/ D13 DIESEL.+$275.00 shipping
  • Used. Offer #4 priced at $324.00 + $275.00 shipping estimate = $599.00* total. Cab Type: CONVENTIONAL CAB. Model: VOLVO VNL 860.+$275.00 shipping
  • Used. Offer #5 priced at $460.81 + $0.00 shipping estimate = $460.81* total. 'VOLVO VNM DEF TANK '.FREE SHIPPING

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