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Spectra 94633 HVAC Heater Core - Rear

Brand	Spectra 94633
Position	Rear
Fits	Dodge and Plymouth · 100 vehicles

OE replacement. Meets or exceeds original equipment performance.

HVAC heater core for dependable cabin heat.

Cross-references Anchor 2297, Anchor 3091 and Anchor 9122 for the same application. See all 19.

$78.26Free shipping

In stock · usually ships same day before 1pm CST

Step 1 — Confirm fitment

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Free returns within 60 days if it doesn't fit when fitment is verified.

Not what you need? See all HVAC Heater Core options

Spectra 94633 HVAC Heater Core

The Spectra 94633 HVAC heater core is a direct-fit replacement for select rear HVAC applications in Dodge and Plymouth vans. Built for 1977-1998 vehicles, it supports dependable cabin heat in models without air conditioning and is engineered to meet or exceed original equipment performance.

Key Features

HVAC heater core for rear heating systems
Fits select Dodge B100, B200, B300, B150, B250, and B350 applications
Fits select Dodge B1500, B2500, B3500, Ram 1500 Van, Ram 2500 Van, and Ram 3500 Van applications
Fits select Plymouth PB150, PB250, and PB350 applications
Built with Spectra Premium manufacturing and quality control standards
Part number 94633 for easy catalog lookup

Detailed Description

Spectra Premium HVAC heater cores are manufactured with engineering and quality control processes aimed at matching original equipment performance. This heater core is intended for rear HVAC use in select Dodge and Plymouth vans, including Dodge B150, B250, and B350 models, as well as Dodge Ram van and Plymouth PB applications listed in the fitment data. If you are replacing a leaking or restricted heater core on a rear heat system, Spectra 94633 provides a straightforward OE-style service part.

This part cross-references Four Seasons 91633 for the same application.

What It Helps Fix

Weak or uneven rear cabin heat
Coolant odor inside the vehicle from a leaking heater core
Fogging or film on interior glass caused by heater core seepage
Restricted coolant flow through the rear heater circuit
Loss of heat output in older Dodge and Plymouth van HVAC systems

Installation Notes and Tips

Verify rear HVAC configuration and confirm the vehicle does not have air conditioning where noted in the fitment data before ordering. Compare the original heater core to the replacement unit for inlet and outlet orientation, mounting points, and overall dimensions prior to installation. After installation, refill and bleed the cooling system carefully to remove trapped air and restore proper heater performance.

Quality Assurance

Spectra Premium states that its engineering, manufacturing technology, and quality control processes are used to ensure this heater core meets or exceeds the performance of the original equipment it replaces.

This part fits 100 vehicles

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

Year	Make	Model	Position	Notes
1998	Dodge	B1500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1998	Dodge	B2500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1998	Dodge	B3500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1998	Dodge	Ram 1500 Van	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1998	Dodge	Ram 2500 Van	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1997	Dodge	B1500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1997	Dodge	B2500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1997	Dodge	B3500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1997	Dodge	Ram 1500 Van	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1997	Dodge	Ram 2500 Van	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1997	Dodge	Ram 3500 Van	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1996	Dodge	B1500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1996	Dodge	B2500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1996	Dodge	B3500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1996	Dodge	Ram 1500 Van	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1996	Dodge	Ram 2500 Van	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1996	Dodge	Ram 3500 Van	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1995	Dodge	B1500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1995	Dodge	B2500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1995	Dodge	B3500	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1995	Dodge	Ram 1500 Van	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1994	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1994	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1994	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1993	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1993	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1993	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1992	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1992	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1992	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1991	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1991	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1991	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1990	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1990	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1990	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1989	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1989	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1989	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1988	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1988	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1988	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1987	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1987	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1987	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1986	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1986	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1986	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1985	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1985	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1985	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1984	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1984	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1984	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1983	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1983	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1983	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1983	Plymouth	PB150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1983	Plymouth	PB250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1983	Plymouth	PB350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1982	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1982	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1982	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1982	Plymouth	PB150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1982	Plymouth	PB250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1982	Plymouth	PB350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1981	Dodge	B150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1981	Dodge	B250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1981	Dodge	B350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1981	Plymouth	PB150	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1981	Plymouth	PB250	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1981	Plymouth	PB350	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1980	Dodge	B100	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1980	Dodge	B200	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1980	Dodge	B300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1980	Dodge	CB300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1980	Plymouth	PB100	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1980	Plymouth	PB200	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1980	Plymouth	PB300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1979	Dodge	B100	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1979	Dodge	B200	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1979	Dodge	B300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1979	Dodge	CB300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1979	Plymouth	PB100	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1979	Plymouth	PB200	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1979	Plymouth	PB300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1978	Dodge	B100	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1978	Dodge	B200	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1978	Dodge	B300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1978	Dodge	CB300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1978	Plymouth	PB100	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1978	Plymouth	PB200	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1978	Plymouth	PB300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1977	Dodge	B100	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1977	Dodge	B200	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1977	Dodge	B300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1977	Dodge	CB300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1977	Plymouth	PB100	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1977	Plymouth	PB200	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
1977	Plymouth	PB300	Rear	Compatible with select vehicle models lacking air conditioning for this HVAC Heater Core.
No rows match your filter.

Directly replaces or cross-references 19 part numbers

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

Anchor — 2297Anchor — 3091Anchor — 9122APDI — 9010107Four Seasons — 91633Hygrade Tuneup — 1311OSC — 2321Spectra Premium — 94633902979863327924139912270229793804138959926603091H2321HT399122HTR010274

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