SKU: 65155181815

OTC Tools 6749 Engine Barring Socket for Mack and Cat Applications

$133.67 $148.52
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Description

OTC Tools 6749 Engine Barring Socket for Mack and Cat ApplicationsOTC's Engine Barring Splined Male Socket is designed for use on Mack E7s and Cat 3208s. Special tool engages engine and allows it to be rotated for injector work, valve lash adjustments, and more. Durable steel construction. Similar to Kent Moore J 38587 A. Value is at the core of the OTC tool and equipment portfolio. Whether its a simple repair or the most complex drivability concern, these award winning tools universally solve problems faster, and

OTC's Engine Barring Splined Male Socket is designed for use on Mack E7s and Cat 3208s. Special tool engages engine and allows it to be rotated for injector work, valve lash adjustments, and more. Durable steel construction. Similar to Kent-Moore J-38587-A. Value is at the core of the OTC tool and equipment portfolio. Whether its a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether its a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians productivity and shop profits.

Features

  • OTC Engine Barring Splined Male Socket

  • For use on Mack E7, Cat 3208, and more

  • Engages engine and allows it to be rotated for injector work, valve lash adjustments, and more

  • Durable steel construction

  • Similar to Kent-Moore J-38587-A

Specifications

Manufacturer : OTC

Brand : OTC

Model : 6749

Item Weight : 1 Pounds

Product Dimensions : 3.4 x 3.8 x 3.3 inches

Item model number : 6749

Manufacturer Part Number : 6749

Cover Included : Unit^Instruction Guide

ASIN : B00I6H7LW4

Customer Reviews : 4.9 out of 5 stars 32 ratings 4.9 out of 5 stars

Best Sellers Rank : #811,778 in Automotive (See Top 100 in Automotive) #1,774 in Powersports Engine Gaskets

Domestic Shipping : Item can be shipped within U.S.

International Shipping : This item can be shipped to select countries outside of the U.S. Learn More

Date First Available : February 1, 2014

Item Dimensions LxWxH : 3.4 x 3.8 x 3.3 inches

Material : Steel

Head Style : Hex

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 65155181815

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4.8 ★★★★★
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Belle of the Ball
Boise, US
★★★★★ 5
Works wonders
I've been buying these for well over a year now as Subscribe and Save. I work 12 hour overnights as a nurse. My sleep schedule normally gets messed up. I would have no problem falling asleep but would wake up only a few hours later which is not good when you have work again that night. We buy these on Amazon due to the great price and the fact that they are extended release which helps keep me asleep longer. When I take 1 or 2 of them, I am able to sleep about 7-8 hours which is great. I take this both when I sleep during the day and sleep during the night. It helps me sleep no matter when and I am able to adjust my sleep schedule often. I have recommended them to many.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2013
P
Verified Purchase
PSBone
Houston, US
★★★★★ 4
Works quite well, dose still a bit high for me
Used to take the Natrol 5mg slow release, now that I can compare these 2, I love this more. It doesn't make me feel too edgy, it's quite relaxing actually. I still have to halve the dose as the full dose makes me groggy the next day. Where the Natrol gave me very vivid, but not unpleasant dreams, these don't make me dream as vividly. It does take a bit longer to get me to sleep, but once asleep, your asleep. Highly recommend, once I finish this bottle, I'd get the 2mg tr next time, as a lower dose works better for me.
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Reviewed in the United States on July 10, 2014
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Verified Purchase
Eudy Ernesto De León Batista
Port Orchard, US
★★★★★ 5
Excelente Muy Satisfecho
Servicio excepcional, cuidadoso, el producto muy bien empacado. Y el tiempo de entrega fue el acordado. Y del producto ni hablar, excelente.
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Reviewed in the United States on February 3, 2026
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Dog Mom
Alexandria, US
★★★★★ 5
seems to work just fine
Helps me sleep. I also use Mg, B complex and medical cannabis oil before bed. My sleep isn't great otherwise here in the good ol' USA (unlike in Europe where I sometimes go for complicated issues/not vacation; which indicates issues with the much higher radiofrequency exposure allowed in the US than in the European country where I sleep like a happy baby). Just wait for 5G, then I probably need to reinvent my sleep protocol if I want to get any rest. But well, with the 5G impact on the biosphere, we may not be here much longer then. That means we better stop 5G before it's all roleld out.
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Reviewed in the United States on August 2, 2019
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S.J.
Alexandria, US
★★★★★ 5
The product is worth purchasing!
I find that the time release melatonin works for me. The cost is reasonable, shipping directly to the home works well.
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Reviewed in the United States on September 6, 2025

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