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Steelman Replacement for No. 4 Sized Steel Radiator Test Adapter Cap in Steelman 97332 and 60025 Cooling System Test Kits

  • Based on 22 reviews
Condition: New
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Availability: 16 left in stock
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Arrives Friday, Oct 2
Order within 12 hours and 49 minutes
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Features

  • ADD OR REPLACE - Professional grade accessory to replace a damaged adapter or to expand an existing cooling system test kit
  • TIGHT SEALING - Air tight, spring-loaded design provides a secure seal for accurate results when pressure testing vehicle radiators
  • QUICK CONNECT - Quick connect adapter on the cap for easy connection to pressure pumps
  • APPLICABLE VEHICLES - Designed for use on a range of import and domestic vehicles.
  • COMPATIBILITY - Designed for use with the STEELMAN 97332 and 60025 Cooling System Test Kits

Description

Replace a lost or damaged radiator cap adapter or add a new one to your existing kit with this STEELMAN 60406 Steel NO.4 Size Radiator Test Adapter Cap. This nickel plated steel radiator cap adapter has a pressure sealing , spring loaded gasket that fits tight and snug to provide a secure fit and accurate test results on cooling systems. The top of the adapter has a quick- connect fitting to allow for easy attachment to hand held pressure pumps. This particular radiator cap adapter is designed for use on vehicles. Compatible with pressure pumps used in the STEELMAN 97332 Cooling System Test and 60025 Cooling System Test and Purge / Refill Kits. STEELMAN is an industry leader in automotive and industrial specialty tools and equipment, manufacturing the highest quality, unique, and innovative tools and products, designed to meet the specific needs of mechanics, contractors, and other working professionals.

Brand: Steelman


Color: Silver


Material: Alloy Steel


Exterior Finish: Nickel Plated


Item dimensions L x W x H: 3 x 3 x 3.75 inches


Brand Name: Steelman


Model Number: 60406


Manufacturer Part Number: 60406


Number of Items: 1


OEM Equivalent Part Number: 60406


Manufacturer: Steelman


UPC: 099198604060


Item Type Name: automotive-replacement-radiator-standard


Manufacturer Warranty Description: Lifetime Limited Warranty


Color: Silver


Exterior Finish: Nickel Plated


Style Name: Modern


Material Type: Alloy Steel


Item Dimensions: 3 x 3 x 3.75 inches


Compatible with Vehicle Type: Car, Truck


Automotive Fit Type: Universal Fit


Closure Type: Twist-On


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Well made
Seals and holds pressure. Fits Mishimoto rad on 96-00 civic (should be same as stock cap size)
Reviewed in the United States on November 25, 2025 by Dan M

  • Very helpful tool
Good quality
Reviewed in the United States on November 30, 2025 by Juamal115

  • Buen sellado
De muy buena calidad, sellan ala perfección.
Reviewed in the United States on October 12, 2025 by Juan Jose

  • NOT JEEP COMPATIBLE.
DOES NOT FIT JEEP. 2005 Jeep Liberty has a coolant bottle cap that is about 50% larger than this unit. There needs to be actual specifications posted please, size measurements. The latch design WOULD have probably worked if the overall diameter was proper.
Reviewed in the United States on June 11, 2026 by The Amazonner

  • Double check fit before purchasing
Well constructed ad says it will fit 2008 Subaru Outback 4 cylinder but it doesn’t.
Reviewed in the United States on November 14, 2025 by Tyarboro

  • Fits perfect
Fits perfect on my Subaru. Don’t need to buy the Snap On version for $80
Reviewed in the United States on September 30, 2024 by k. karnes

  • Better details on size.
The one I purchased was too small
Reviewed in the United States on February 15, 2024 by Bill Dye

  • Fits Harbor Freight Radiator pressure test kits
Fits Harbor Freight radiator pressure test kits.
Reviewed in the United States on September 29, 2023 by MM

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