94039 STEWART WARNER Southwind Heater Control Knob Base

Review STEWART WARNER Southwind Heater Control Knob 5/8 Inch Dia Base Mint Condition

The Stewart Warner 94039 Southwind Heater Control Knob is a premium automotive accessory designed to enhance the functionality and aesthetics of your vehicle's heating system. This heater control knob is engineered to fit perfectly into 5/8 inch base applications, making it a versatile option for a wide range of vehicles.

The knob boasts a sleek, contemporary design, featuring a smooth, matte black finish that complements any interior. Its ergonomic shape ensures a comfortable grip, allowing for easy and precise temperature adjustments on the go. The knob's large, clear temperature markings enable drivers to quickly identify their preferred setting and maintain a consistent cabin temperature.

Constructed from high-quality materials, this Stewart Warner heater control knob is built to last. Its durable design withstands the wear and tear of everyday use, ensuring that it remains a reliable addition to your vehicle for years to come. The knob's secure installation process guarantees a stable fit, preventing any unwanted movement or wobbling.

The Stewart Warner 94039 Southwind Heater Control Knob is an excellent choice for those seeking to upgrade their vehicle's heating system with a stylish and functional accessory. Its precise temperature control, comfortable grip, and durable design make it a top pick for drivers who demand the best in automotive accessories.

Stewart Warner 94039 Southwind Heater Control Knob (5/8 Base): A Detailed Analysis

The Stewart Warner 94039 Southwind Heater Control Knob, featuring a 5/8 base, is a popular replacement option for vehicles with worn-out or damaged heater control knobs. This analysis aims to provide you with a clear understanding of its advantages, disadvantages, and a concluding recommendation.

1. Precise Fit: The Stewart Warner 94039 Southwind Heater Control Knob is engineered to fit perfectly into most vehicles with a 5/8 base heater control. This ensures a secure installation, reducing the likelihood of vibrations or wobbling.

2. Classic Design: This heater control knob boasts a classic appearance, resembling the original equipment found in many vehicles. It not only restores the aesthetic appeal of your vehicle's interior but also adds a touch of nostalgia.

3. Durable Construction: The Stewart Warner 94039 Southwind Heater Control Knob is built to last, featuring a high-quality, heat-resistant plastic material that can withstand the rigors of daily use.

4. Easy to Install: Installing this heater control knob is a straightforward process. Most users report completing the installation in under an hour, requiring minimal tools and expertise.

1. Limited Customization: The Stewart Warner 94039 Southwind Heater Control Knob comes in a standard design, with no customization options available. For those seeking a unique look, this may not be the best choice.

2. Potential Color Differences: While the Stewart Warner 94039 Southwind Heater Control Knob is designed to match the original equipment in most vehicles, there have been reports of slight color differences. Ensure that the color of the replacement part suits your vehicle before making a purchase.

The Stewart Warner 94039 Southwind Heater Control Knob (5/8 base) is an excellent replacement option for those in need of a functional, durable, and classic-looking heater control knob. Its precise fit, ease of installation, and high-quality construction make it a top choice for many vehicle owners. However, those seeking customization options may need to look elsewhere.

If you are in the market for a reliable, functional, and classic-looking heater control knob with a 5/8 base, the Stewart Warner 94039 Southwind Heater Control Knob is an excellent choice. Its advantages far outweigh the minor drawbacks, making it a worthwhile investment for maintaining both the functionality and aesthetic appeal of your vehicle's interior.

Details:

No threads in the set screw hole. The stem hole is approx 3/16 id. I'm not sure which heater or pre-heater model this knob is for, p/n: 940391 940395/8 OD at the base butt of. This knob is near mint the graphics are sharp and clear.

1-3/4 OD for the face of knob.

specifications ignitioncomp:

• brand: Stewart Warner
• mpn: 94039
• part type: Control Heater
• vintage part: Yes

offer ignitioncomp:

• started: january 15, 2026
• availability: in stock
• options: ship-to-home
• prices: $14.98–$20.00
• item condition:
  • New
  • New other (see details)
• sold #: 8
• in stock #: 5

shipping ignitioncomp:

• service: economy
• transit: 6-12 days
• class: economy
• type: fixed

seller ignitioncomp:

• rating: 100.0%
• # reviews: 1875
• city: lancaster, california

returns ignitioncomp:

• policy: no returns

payments ignitioncomp:

• other
• wallet: paypal
• credit card: mastercard

general ignitioncomp:

• category: Auto Parts > Car Truck Accessories > Ignition Systems Components