HomeHVAC > Motors, Core, Case and Related ComponentsFour Seasons 98785 HVAC Heater Core - Rear
Part #: 98785

Four Seasons 98785 HVAC Heater Core - Rear

Heater Core, Rear
⚙️ 46 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Heater Core, Rear
🚗Fitment: Dodge, B150, B1500, B250, B2500, B350, B3500, Ram 1500 Van, Ram 2500 Van, and Ram 3500 Van
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Heater Core 98785

The Four Seasons Heater Core 98785 is designed to restore efficient heating performance in select Dodge vans. Engineered with durable aluminum construction, this heater core ensures reliable heat transfer and long-lasting operation for your Dodge B150, B250, B350, and Ram 1500, 2500, 3500 Van models.

  • Core dimensions: 7-3/4" length, 7-1/8" width, 1-7/8" thickness
  • Constructed from corrosion-resistant aluminum
  • Core depth of 1.875 inches and height of 7.750 inches
  • Tube sizes: two 0.500 inch (12.7 mm) tubes and one 0.625 inch (15.875 mm) tube
  • Meets or exceeds OEM specifications for fit and function
  • Non-adjustable pipe positioning for direct replacement

Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on delivering reliable HVAC components that meet or exceed original equipment manufacturer standards. This product line emphasizes quality materials such as aluminum cores for improved heat conduction and corrosion resistance. The 98785 heater core is part of this line, providing a direct-fit solution for Dodge vans requiring efficient cabin heating.

Detailed Product Description

This HVAC heater core features an aluminum core measuring 7.75 inches in height, 7.125 inches in width, and 1.875 inches in depth, designed to fit specific Dodge B150, B250, B350, and Ram 1500, 2500, 3500 Van models. The three tubes—two at 0.5 inches and one at 0.625 inches diameter—allow for proper coolant flow and heat exchange. The heater core’s fixed pipe positioning ensures compatibility with factory HVAC systems without modification. Its aluminum construction offers resistance to corrosion and efficient heat transfer, contributing to consistent cabin heating performance.

Common Applications and Issues Resolved

  • Restores heating function in Dodge B150, B250, B350 vans and Ram 1500, 2500, 3500 Vans
  • Replaces leaking or clogged heater cores causing coolant loss
  • Eliminates insufficient cabin heat due to core blockages or corrosion
  • Addresses heater core failures that cause fogging or coolant odors inside the vehicle
  • Solves overheating issues related to compromised heater core performance

Installation Notes and Tips

Installation of the Four Seasons Heater Core 98785 requires draining the vehicle’s cooling system and removal of the dashboard or HVAC housing to access the core. Since pipe positioning is fixed, ensure proper alignment with existing HVAC connections. Verify all hose connections are secure and free of leaks after installation. It is recommended to flush the cooling system to remove debris before installing the new heater core to prevent premature clogging.

Quality Assurance and Warranty

The Four Seasons Heater Core 98785 meets or exceeds OEM standards for fit, form, and function, ensuring reliable performance in compatible Dodge vans. Manufactured with corrosion-resistant aluminum, this heater core is built for durability. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandFour Seasons
Part Number98785
PositionHeater Core, Rear
Length7-3/4
Thickness1-7/8
Width7-1/8
Core MaterialAluminum
Adjustable Pipe PositioningNo
Core Depth IN1.875
Core Height IN7.750
Core Width IN7.125
DescriptionHeater cores
Meets / Exceeds OEM?Yes
StyleAluminum heater core
Tube 1 IN0.500
Tube 1 MM12.700
Tube 2 IN0.500
Tube 2 MM12.700
Tube 3 IN0.625
Tube 3 MM15.875
TypeHeater core /aluminum

This part fits 46 vehicles. Search below:

YearMakeModelPositionNotes
1997DodgeB1500RearCompatible with vehicles equipped with air conditioning.; Heater Core
1997DodgeB2500RearCompatible with vehicles equipped with air conditioning.; Heater Core
1997DodgeB3500RearCompatible with vehicles equipped with air conditioning.; Heater Core
1997DodgeRam 1500 VanRearCompatible with vehicles equipped with air conditioning.; Heater Core
1997DodgeRam 2500 VanRearCompatible with vehicles equipped with air conditioning.; Heater Core
1997DodgeRam 3500 VanRearCompatible with vehicles equipped with air conditioning.; Heater Core
1996DodgeB1500RearCompatible with vehicles equipped with air conditioning.; Heater Core
1996DodgeB2500RearCompatible with vehicles equipped with air conditioning.; Heater Core
1996DodgeB3500RearCompatible with vehicles equipped with air conditioning.; Heater Core
1996DodgeRam 1500 VanRearCompatible with vehicles equipped with air conditioning.; Heater Core
1996DodgeRam 2500 VanRearCompatible with vehicles equipped with air conditioning.; Heater Core
1996DodgeRam 3500 VanRearCompatible with vehicles equipped with air conditioning.; Heater Core
1995DodgeB1500RearCompatible with vehicles equipped with air conditioning.; Heater Core
1995DodgeB2500RearCompatible with vehicles equipped with air conditioning.; Heater Core
1995DodgeB3500RearCompatible with vehicles equipped with air conditioning.; Heater Core
1995DodgeRam 1500 VanRearCompatible with vehicles equipped with air conditioning.; Heater Core
1994DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1994DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1994DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core
1993DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1993DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1993DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core
1992DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1992DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1992DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core
1991DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1991DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1991DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core
1990DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1990DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1990DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core
1989DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1989DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1989DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core
1988DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1988DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1988DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core
1987DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1987DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1987DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core
1986DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1986DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1986DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core
1985DodgeB150RearCompatible with vehicles equipped with air conditioning.; Heater Core
1985DodgeB250RearCompatible with vehicles equipped with air conditioning.; Heater Core
1985DodgeB350RearCompatible with vehicles equipped with air conditioning.; Heater Core

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

156249018121582448250524279239309043394165436101643614025547856603376702448901020791389478598785CR9138E812074H6214ZH524

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.