Top Automotive Replacement Heater Core Fittings

The best Automotive Replacement Air Conditioning Heater Core Fittings includes ACDelco Heater Fitting (15-31770), Four Seasons Tee Heater Fitting (84540), Aramox 4-Port A/C Bulkhead Fitting and many others as mentioned below.

1

ACDelco Heater Fitting (15-31770)

  • Premium aftermarket replacement part.
  • Designed for optimal fit and performance.
  • Enhances vehicle heating system efficiency.
  • Manufactured by trusted ACDelco brand.
  • Durable construction for long-lasting use.
  • Easy installation for quick replacement.
  • Meets or exceeds OEM specifications.
  • Average Rating out of 5:
  • Price Range: $14.66
  • Material: Silver
2

Four Seasons Tee Heater Fitting (84540)

  • Durable construction for long-lasting performance.
  • Precision-engineered for a perfect fit.
  • Compatible with various heater systems.
  • Lightweight design for easy installation.
  • Package dimensions: 3.555 H x 12.446 L x 5.334 W.
  • Part number: 84540 for easy identification.
  • Reliable heating solution for your vehicle.
  • Average Rating out of 5:
  • Price Range: $21.19
  • Material: Stainless Steel
3

Aramox 4-Port A/C Bulkhead Fitting

  • Universal fit for classic and performance vehicles.
  • Compatible with OEM and aftermarket A/C systems.
  • Made from durable 6061-T6 billet aluminum alloy.
  • Ensures high reliability and wear-resistance.
  • Outstanding performance and work efficiency.
  • Includes one A/C bulkhead fitting in package.
  • Technical support available for installation issues.
  • Average Rating out of 5:
  • Price Range: $26.44
  • Color: Silver
  • Material: Aluminum
4

Jetuplusllc Rear AC Block Off Kit (2010-2018 Explorer)

  • Compatible with Ford Explorer 2010-2018 models.
  • Made from high-quality aluminum for durability.
  • Easy installation for hassle-free setup.
  • Designed to block off rear AC effectively.
  • Aftermarket part ensures reliable performance.
  • Condition: Brand new for optimal use.
  • Enhances vehicle's air conditioning efficiency.
  • Average Rating out of 5:
  • Price Range: $18.20
5

Auto Cooling Solutions Rear AC Block Off Kit

  • Direct fit for 2000-2014 Suburban, Yukon XL, Tahoe.
  • Easy installation without specialized tools needed.
  • Preserves rear AC system with custom fittings.
  • Improves front AC performance for a cooler cabin.
  • Premium CNC machined fittings for durability.
  • Lifetime warranty ensures long-lasting quality.
  • Cost-effective solution, save on expensive repairs.
  • Average Rating out of 5:
  • Price Range: $64.50
  • Material: Aluminum
6

ACDelco Air Inlet Door Actuator [15-73599]

  • Restores air inlet door functionality effectively.
  • GM-recommended replacement for original component.
  • Ensures quality, reliability, and durability.
  • Manufactured to GM OE specifications.
  • Meets strict quality requirements for performance.
  • Verify compatibility guide for accurate fitment.
  • Parts may differ in markings for quality assurance.
  • Average Rating out of 5:
  • Price Range: $48.14
  • Material: Metal
7

Four Seasons Fitting [Model 84729]

  • High-quality 45° heater fitting for reliable performance.
  • Lightweight design, only 0.26 lb for easy handling.
  • Compact size: 3.5" L x 1.5" W x 1.5" H.
  • Model number 84729 for easy identification.
  • Durable construction ensures long-lasting use.
  • Perfect for various heating applications and systems.
  • Easy installation for quick and efficient setups.
  • Average Rating out of 5:
  • Price Range: $16.31
  • Color: Silver
  • Material: Metal
8

Four Seasons 90° Heater Fitting (84777)

  • High-quality 90° heater fitting for efficient performance.
  • Part number: 84777 for easy identification.
  • Meets or exceeds OEM design specifications.
  • Lightweight design at only 0.6 pounds.
  • Compact dimensions for easy installation and storage.
  • Durable construction for long-lasting reliability.
  • Ensures optimal heating system performance and efficiency.
  • Average Rating out of 5:
  • Price Range: $15.01
  • Material: Metal
9

Four Seasons Tee Heater Fitting (84520)

  • High-quality Tee heater fitting for reliable performance.
  • Compatible with various heating systems and models.
  • Lightweight design: only 0.100 pounds.
  • Compact dimensions for easy installation and handling.
  • Durable construction ensures long-lasting use.
  • Part number: 84520 for easy identification.
  • Essential component for efficient heating systems.
  • Average Rating out of 5:
  • Price Range: $17.51
  • Size: ‎Klein
  • Material: Metal
10

Four Seasons Flush Tee Heater Fitting

  • Meets or exceeds original equipment performance standards.
  • Includes one durable Flush Tee Heater Fitting.
  • Tee connector type for secure connection.
  • Dimensions: 4" width, 7" length, 4" height.
  • Compatible with model number 84621.
  • Machined finish for a professional appearance.
  • Compatible with NPT thread type fittings.
  • Average Rating out of 5:
  • Price Range: $3.15
  • Material: Metal
11

Four Seasons Heater Fitting (Model 84543)

  • High-quality Four Seasons heater fitting replacement.
  • Model number: 84543 for accurate matching.
  • Compact size for easy installation and use.
  • Lightweight at 0.200 pounds for convenience.
  • Durable design ensures long-lasting performance.
  • Dimensions: 3.81 x 10.16 x 10.16 cm.
  • Ideal for various heating applications and systems.
  • Average Rating out of 5:
  • Price Range: $13.02
  • Material: four
12

Vintage Air 121004 Heater Fitting 8"

  • High-quality vintage heater fitting for optimal performance.
  • Compact dimensions for easy installation and use.
  • Lightweight design, only 0.105 pounds.
  • Straight angle for efficient airflow direction.
  • Made in the USA for superior craftsmanship.
  • Durable construction for long-lasting reliability.
  • Perfect for classic car restoration projects.
  • Average Rating out of 5:
  • Price Range: $13.79
13

TVOGRUC Engine Heater Core Bypass Kit

  • Universal fit for 5/8" and 3/4" hoses.
  • Durable aluminum and rubber construction prevents leaks.
  • Replaces OEM part number 626-001 efficiently.
  • Easy to install with no special tools required.
  • Two-year warranty for peace of mind.
  • Tested for reliability and performance on vehicles.
  • Watch installation videos for better guidance.
  • Average Rating out of 5:
  • Price Range: 0
  • Material: Aluminum
14

Four Seasons A/C Compressor Adapter [15209]

  • Compatible with various A/C systems.
  • Durable construction for long-lasting performance.
  • Easy installation with precise fittings.
  • Lightweight design for easy handling.
  • Enhances A/C efficiency and functionality.
  • Reliable and trusted brand quality.
  • Part number for easy identification: 15209.
  • Average Rating out of 5:
  • Price Range: $28.38
  • Material: Steel
15

SHLPDFM Billet Aluminum 2-Port AC Connector

  • Compatible with OEM and aftermarket AC systems.
  • Ideal for Hot Rod, GM, and Ford vehicles.
  • Reference OEM number: 181152-100.
  • Big port dimension: 1-10(7/8"in-14).
  • Small port dimension: 1-6(5/8"in-18).
  • Made from durable 6061-T6 billet aluminum.
  • High finish, rust-resistant, and wear-proof design.
  • Price Range: $14.90
  • Material: Aluminum
16

Four Seasons Tee Heater Fitting (84544)

  • High-quality tee heater fitting for reliable performance.
  • Meets or exceeds original equipment specifications.
  • Vehicle-specific fit ensures optimal compatibility.
  • Part number: 84544 for easy identification.
  • Compact package dimensions for convenient storage.
  • Durable construction for long-lasting use.
  • Easy installation for quick repairs.
  • Average Rating out of 5:
  • Price Range: $17.77
  • Material: Brass
17

Four Seasons Pressure Heater Fitting (84716)

  • Durable pressure heater fitting for reliable performance.
  • Designed for easy installation and compatibility.
  • Center width measures 0.625 inches or 15.875 mm.
  • Inlet diameter of 5/8 inch for secure connection.
  • Manufactured by Four Seasons for quality assurance.
  • Ideal for automotive heating system applications.
  • Ensures efficient coolant flow for optimal heating.
  • Average Rating out of 5:
  • Price Range: $8.87
18

Auto Cooling Solutions Rear AC Block Off Kit

  • Direct fit for 2007-2017 Enclave, Outlook, Traverse, Acadia.
  • Protects rear AC system with custom fittings.
  • Cost-effective solution avoids expensive line replacements.
  • Improves front AC system performance effectively.
  • Simple installation without professional tools needed.
  • Enjoy a cooler cabin in hot conditions.
  • Lifetime warranty ensures long-term satisfaction.
  • Average Rating out of 5:
  • Price Range: $94.50
19

Four Seasons 84775 Fitting (1 Pack)

  • Durable machined exterior finish for longevity.
  • Compact size for easy installation and storage.
  • Lightweight design at only 0.18 pounds.
  • Precise thread size of 0.375 inches.
  • Single piece packaging for convenience.
  • Dimensions suitable for various applications.
  • Ideal for automotive and mechanical uses.
  • Average Rating out of 5:
  • Price Range: $16.82
20

IBVIBV HVAC Connector for Toyota Tacoma [2004-2015]

  • Compatible with Toyota Tacoma 2004-2015 models.
  • Direct replacement for easy installation.
  • High-quality copper sheet for durability.
  • Nickel plating prevents rust and corrosion.
  • Meets or exceeds OE standards.
  • 100% tested for quality assurance.
  • Includes one connector as shown in pictures.
  • Price Range: $18.99
  • Material: Plastic
21

Vintage Air Fitting Female [121034]

  • High-quality vintage air fitting for vehicles.
  • Designed for 45-degree heater connections.
  • Durable construction ensures long-lasting performance.
  • Compact size for easy installation and fitting.
  • Lightweight design for effortless handling.
  • Made in the USA for reliable quality.
  • Compatible with various auto accessories and systems.
  • Average Rating out of 5:
  • Price Range: $14.73
  • Size: ‎5/8 inches
22

YCT Dashboard AC Heater Vent Duct [9L3Z19893CA]

  • High-quality dashboard AC heater vent duct.
  • Compatible with Ford F150 2009-2014 models.
  • Easy to install with simple tools.
  • Durable chrome finish for a stylish look.
  • Fitment details included in product description.
  • Quality inspected before sale for assurance.
  • Customer support available for any inquiries.
  • Average Rating out of 5:
  • Price Range: $14.99
23

Qiilu 4 Port A/C Bulkhead Fitting

  • Compatible with OEM and aftermarket systems.
  • Made from durable 6061-billet aluminum alloy.
  • Lightweight design ensures easy installation.
  • Reliable for long-lasting performance.
  • Size: 1-6 (5/8in-18) and 3-10 (7/8in-14).
  • Enhances overall air conditioning efficiency.
  • Responsive customer service for inquiries.
  • Average Rating out of 5:
  • Price Range: $25.48
  • Color: Black
  • Material: 6061‑T6 Billet Aluminum Alloy
24

Four Seasons Fitting [Model 84778]

  • Durable 90° heater fitting for reliable performance.
  • Part number: 84778 for easy identification.
  • Lightweight design at only 0.3 pounds.
  • Compact dimensions: 3.555 H x 7.111 L x 6.858 W.
  • Ideal for automotive heating systems and applications.
  • Quality construction ensures long-lasting use.
  • Easy to install for a quick replacement.
  • Average Rating out of 5:
  • Price Range: $19.31
  • Material: Brass
25

SHLPDFM 4-Port Billet Aluminum Bulkhead Connector

  • High-quality 6061-T6 billet aluminum construction.
  • Compatible with OEM and aftermarket systems.
  • Designed for Hot Rod and GM Performance vehicles.
  • Big port dimension: 3-10 (7/8"-14).
  • Small port dimension: 1-6 (5/8"-18).
  • Durable, wear-proof and rust-resistant.
  • Longer service life with stable performance.
  • Average Rating out of 5:
  • Price Range: $22.99
  • Material: Aluminum
26

JUNRUO A/C Heater Control Wire Harness

  • Retrofit 1996-1999 climate controls to 1995 vehicles.
  • Replaces part numbers 16233143, 9378815, 1572548.
  • Compatible with various Chevy and GMC models.
  • Direct replacement, no coding required for installation.
  • Plug & Play design for easy setup.
  • Ideal for hard-to-find climate control replacements.
  • Connects seamlessly to your original wiring harness.
  • Average Rating out of 5:
  • Price Range: $39.71
  • Material: Acrylonitrile Butadiene Styrene
27

Vintage Air 4-Way Square Plate (384600-MBA)

  • High-quality polished aluminum construction for durability.
  • Streamline design for efficient air conditioning systems.
  • Compatible with 6 AN and 10 AN ports.
  • Attractive polished finish enhances aesthetic appeal.
  • Easy screw-in installation for quick setup.
  • Designed for quad-configuration system applications.
  • Reliable performance in heating and cooling systems.
  • Average Rating out of 5:
  • Price Range: $91.98