Polyurea vs Epoxy Garage Floor Coating: Best Resurface for Garage Floor? Here at WiseAutoTools.com, we usually cover things like spark plug thread repair and other aluminum … read more 26th Feb 2026 DennisB
Stripped Chevy Starter Bolt Threads? A recent customer reached out after installing a rebuilt engine from Jasper Engines in a Chevy. The … read more 19th Feb 2026 DennisB
Why Your Time-Sert Driver Gets Tight Early If you use Time-Sert kits frequently, you might be used to the insert screwing onto the driver almos … read more 6th Feb 2026 DennisB
Debunking Myths: Is Stainless Steel Just Carbon Steel with Rust Protection? Hello, I'm Dennis Bandy, owner of Wise Auto Tools and a Master Automotive Technician with many years … read more 15th Jul 2025 DennisB
Description Description 6 latching balls provide superior alignment 12mm female thread Used with older style 1234YF automotive machines & HVACR manifolds View AllClose
Add to Cart Quick view ML83934 1234YF Low Side Coupler MASTERCOOL MSRP: Now: $58.60 Was: Extended disconnect protection sleeve Meets SAE J639 and J2888 codes
Add to Cart Quick view ML67534 1234YF Blue Low Side Quick Coupler MASTERCOOL MSRP: Now: $27.94 Was: Machined to precise standards allows for a perfect seal
Add to Cart Quick view ML83834 1234YF High Side Coupler MASTERCOOL MSRP: Now: $58.60 Was: Extended disconnect protection sleeve Meets SAE J639 and J2888 codes
Add to Cart Quick view CCQCH1234 1234YF High Side Coupler U-VIEW CPS MSRP: Now: $51.39 Was: 6 latching balls provide superior alignment 12mm female thread Used with older style 1234YF automotive machines & HVACR manifolds
Add to Cart Quick view ML67434 1234YF Red High Side Quick Coupler MASTERCOOL MSRP: Now: $27.94 Was: Machined to precise standards allows for a perfect seal