Description
The Mishimoto MMCLAMP-CTWG-66 is a stainless steel constant tension worm gear clamp built to fit hoses, couplers, and pipes with an outer diameter of 1.77in to 2.60in (45mm to 66mm). Unlike a standard worm gear clamp, this Mishimoto Fabrication piece uses a spring-loaded adjustment bolt that keeps applying pressure even as temperatures swing, so the connection stays sealed instead of loosening off over time.
Constant tension is the key benefit here: as heat cycles cause hoses and pipes to expand and contract, the integrated spring compensates and maintains clamping force, which helps prevent the slow leaks that can develop with fixed-torque clamps. The worm gear design still allows for quick, precise tightening, while the stainless steel band and premium-grade construction are intended to resist corrosion better than a zinc-plated clamp when exposed to engine bay heat, moisture, and road grime. It’s a practical piece of fabrication hardware for anyone building or servicing coolant lines, intake piping, or other pressure-fed hose connections that need a dependable, long-term seal.
Vehicle Applications
This is a universal-fit Mishimoto clamp rather than a vehicle-specific part: it is designed to secure any hose, coupler, or pipe with an outer diameter between 1.77in and 2.60in (45mm-66mm), making it suitable for coolant lines, intake pipes, and similar clamping applications across a wide range of builds. Mishimoto also offers this constant tension worm gear clamp in other sizes to cover smaller and larger diameter lines.
Features
- Securely clamps pipes, couplers, and hoses with an outer diameter from 1.77in-2.60in (45mm-66mm)
- Constant tension spring maintains clamping pressure through a wide range of temperatures
- Worm gear design for quick and easy tightening
- Stainless steel construction resists corrosion longer than zinc-plated clamps
- Reusable clamp design
- Sold individually
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMCLAMP-CTWG-66
- Clamp Style: Constant Tension Worm Gear Clamp
- Material: Stainless Steel
- Spring Material: Steel
- Color/Finish: Silver, Plain
- Grade Type: Premium
- Minimum Clamp Diameter: 1.77in
- Maximum Clamp Diameter: 2.6in
- Band Width: 0.62in
- Recommended Tightening Torque: 14 lb-ft (20 Nm)
- SAE Number: 262
- Reusable: Yes
- Includes: (1) Mishimoto Constant Tension Worm Gear Clamp, Mishimoto Lifetime Warranty
Frequently Asked Questions
What diameter range does the Mishimoto MMCLAMP-CTWG-66 clamp fit?
This constant tension worm gear clamp fits hoses, couplers, and pipes with an outer diameter from 1.77in to 2.60in (45mm to 66mm).
What is this clamp made from?
The clamp is made from stainless steel with a steel spring, has a silver plain finish, and is graded as a premium clamp.
How does the constant tension feature work?
A spring on the adjustment bolt allows the clamp to exert continuous clamping pressure through a wide range of temperatures, helping keep parts securely clamped even after heat cycling.
What is the recommended tightening torque?
Mishimoto recommends a tightening torque of 14 lb-ft (20 Nm) for this clamp.
Is this clamp reusable and how is it sold?
Yes, the clamp is reusable and is sold individually.
Does this clamp come with a warranty?
Yes, it is backed by the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
