Skip to product information
1of2
SALE

Quick Seal Connector Kit 4" to 3.5" Adapter w/ 3 Piece Clamp and Weld Flanges 21-145

Motion Raceworks

21-145BLK

 (4)

Motion Raceworks - 21-145BLK

$135.99

$159.99

You Save 15% ($24.00)

Starting at $12 /mo with
View full details

Racing Use Only, Not Legal for Road Use

Quick Seal Connector Kit 4" to 3.5" Adapter w/ 3 Piece Clamp and Weld Flanges 21-145

This kit is designed to adapt a 4" tube to a 3.5" tube with a different size on either side of the assembly.

Motion Raceworks take on a very popular "wiggins" style clamp.  This dual sealed o-ring connector is the perfect balance between high pressure rated sealing and flexibility for movement in your chassis during fabrication and when assembling and reassembling.  

Features: 

  • 3 piece clamp design for easier assembly and access in crowded engine bays
  • OD counter bore weld flanges for nicer welds and fitment 
  • OD counter bore means this works with any 4" OD tubing and 3.5" OD tubing regardless of tubing thickness
  • Stainless quick pin with push button makes assembly easy
  • Rounded sealing ring makes assembly easier 
  • Black anodized smooth clamp for optimum aesthetics
  • 100% Made in the USA

Included:

  • 3 piece clamp
  • (1) 4" weld flange (Aluminum)
  • (1) 3.5" weld flange (Aluminum)
  • (2) o-rings
  • Sealing Ring
  • Stainless Quick Pin

Note: for easier assembly we pre-lube o-rings, if assembly becomes more difficult after use, apply a light coating of lithium grease to o-rings.