Skip to content
PRICE DEMOLITION SALE: Hundreds of Job-Crushing Deals. Shop Now >
Northern Tool Equipment Logo TextNorthern Tool Equipment Logo text link to Home.

Free Gift Card on All Orders Over $100 See Details

Final Day

Free Gift Card Details

$100 Order

$10
gift card

$250 Order

$25
gift card

$500 Order

$50
gift card

$1000 Order

$100
gift card
  • The promotion will be automatically applied on the Shopping Cart page.
  • To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
  • Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
  • E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
  • Free e-gift cards expire 11/01/26.
  • Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
  • Valid online and in participating retail stores.
  • Limited-time offer. Subject to change without notice.
Print

JB Weld MufflerSeal Cement — 6oz., Heat-Resistant Exhaust Repair Paste, Metal-Infused, Model# JBW37906

Item# 7155494
JB Weld MufflerSeal Cement — 6oz., Heat-Resistant Exhaust Repair Paste, Metal-Infused, Model# JBW37906

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

JB Weld MufflerSeal Cement — 6oz., Heat-Resistant Exhaust Repair Paste, Metal-Infused, Model# JBW37906

Click or Tap image to Zoom

$14.99

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
  • High Temperature Resistant: Withstands heat up to 850°F for exhaust system durability.
  • Metal-Containing Paste: Creates a tough, cement-like seal on seams and gaps.
  • Leak Prevention: Effectively seals pipe and exhaust connection leaks.
  • Durable Finish: Hardens to a resilient, long-lasting repair.
  • Set & Cure Time: Sets in 2-4 hours, fully cures in 24 hours for dependable results.

See full description

  • Description

  • Key Specs

  • Reviews

  • Q & A

  • Compare

Product Summary

J-B Weld MufflerSeal™ Muffler Cement is a metal-infused, high-temperature paste designed to seal and prevent leaks in exhaust systems. Ideal for sealing seams, gaps, and pipe connections on mufflers and exhaust components, this cement dries to a hard, durable finish that withstands temperatures up to 850°F. With a set time of 2-4 hours and full cure in 24 hours, MufflerSeal™ provides a reliable, long-lasting repair solution for automotive exhaust repairs. Its dark grey color blends seamlessly with metal surfaces, making it perfect for professional and DIY automotive maintenance.

What's Included

    (1) One (1) 6 oz plastic tube of J-B Weld MufflerSeal™ Muffler Cement

Features + Benefits

  • High Temperature Resistant: Withstands heat up to 850°F for exhaust system durability.
  • Metal-Containing Paste: Creates a tough, cement-like seal on seams and gaps.
  • Leak Prevention: Effectively seals pipe and exhaust connection leaks.
  • Durable Finish: Hardens to a resilient, long-lasting repair.
  • Set & Cure Time: Sets in 2-4 hours, fully cures in 24 hours for dependable results.
  • Automotive Use: Designed specifically for exhaust and muffler repairs.
  • Dark Grey Color: Blends well with metal exhaust components for a clean look.

Key Specs

AttributeSpecification

item#

7155494

Brand

JB Weld

Ship Weight

0.4 LB
AttributeSpecification

Product Weight

0.4000 lb

Dimensions L x W x H (in.)

6.7 x 0.8 x 0.8 in

Reviews

Questions & Answers

Questions

Recently Viewed Items

This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.