Description
The Mishimoto Constant Tension T-Bolt Clamp (MMCLAMP-3TGD) is a stainless steel, gold-finished T-bolt clamp built to fit hoses and couplers with an outer diameter of 2.87″-3.19″ (73mm-81mm). Unlike a standard T-bolt clamp, this version integrates a steel spring on the adjustment bolt that lets the clamp expand and contract as temperatures swing, so clamping pressure stays constant instead of loosening off after heat cycling.
As part of the Mishimoto Fabrication lineup, this constant tension T-bolt clamp is designed for builders who need dependable, high-force clamping on hoses and couplers that see repeated thermal cycling and vibration. The included self-locking nut resists loosening from engine bay movement, while the premium-grade stainless steel construction is built to resist corrosion longer than typical zinc-plated clamps. The optional titanium nitride gold coating adds a distinctive look to any engine bay while remaining wear-resistant. Each clamp is sold individually and is backed by the Mishimoto Lifetime Warranty.
Vehicle Applications
This is a universal-fit clamp rather than a vehicle-specific part: it is intended for any hose or coupler with an outer diameter between 2.87″ and 3.19″ (73mm-81mm), making it suitable for a wide range of fabrication, piping, and hose-clamping projects across different vehicles and builds. Mishimoto also recommends pairing this clamp with its MMICP-SS series silicone couplers for a complete, matched clamping setup.
Features
- Securely clamps pipes, couplers, and hoses with an outer diameter from 2.87-3.19 in (73mm-81mm)
- Constant tension spring maintains clamping pressure through a wide range of temperatures
- Included self-locking nut prevents loosening with movement and vibration
- Stainless steel construction resists corrosion longer than zinc-plated clamps
- Optional wear-resistant titanium nitride gold coating provides unique engine bay styling
- Clamps sold individually
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMCLAMP-3TGD
- Type: T-Bolt (Constant Tension T-Bolt Clamp)
- Material: Stainless Steel
- Spring Material: Steel
- Color: Gold
- Finish: Plain
- Grade Type: Premium
- Band Width: 0.75 in
- Minimum Diameter: 2.87 in (73mm)
- Maximum Diameter: 3.19 in (81mm)
- Reusable: Yes
- Recommended Tightening Torque: 27 in-lbs (3 NM)
- SAE Size: 52
- Includes: (1) Mishimoto Stainless Steel Constant Tension T-Bolt Clamp, Mishimoto Lifetime Warranty
Frequently Asked Questions
What diameter range does this Mishimoto T-bolt clamp cover?
This clamp securely fits hoses, pipes, and couplers with an outer diameter from 2.87 in to 3.19 in (73mm to 81mm).
What makes this a ‘constant tension’ T-bolt clamp?
A spring on the adjustment bolt allows the clamp to expand and contract with temperature swings while maintaining constant pressure on the clamped parts, unlike a traditional T-bolt clamp.
What material is the clamp made from?
The clamp is made from stainless steel, with a steel spring, and is finished in gold with a plain finish. It is a Premium grade clamp.
What is the recommended tightening torque?
The recommended tightening torque for this clamp is 27 in-lbs (3 NM).
Is the clamp reusable and does it come with a warranty?
Yes, this clamp is reusable and is backed by the Mishimoto Lifetime Warranty.
How many clamps are included and what comes in the box?
Clamps are sold individually. Each purchase includes (1) Mishimoto Stainless Steel Constant Tension T-Bolt Clamp along with 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.







