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 ★★★★★
Based on 687 reviews
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Product Reviews
D
Verified Purchase
Dane W.
Houston, US
★★★★★ 5
Great plugs
Size: 2 Pairs / 4 pcs
These are great plugs! Worked like it should!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2024
B
Verified Purchase
bob
Massapequa, US
★★★★★ 3
Does the job, easy use, a bit bulky not exactly as described
Size: 12 Pairs / 24 pcs
Bare wire can be intolerable to work with. Banana plugs make a positive secure connection. These plugs are a touch bulky. Nice to not have to deal with small screws. Use as large of gauge wire as possible. The description says no unintentional disconnections. I beg to differ the bite of teeth aren’t as good as described. Used a 16 gauge pure copper speaker wire and a teenager taught me how secure the wire really is by tugging on the wire not the banana plug pulling the wire free. It does the job, it’s not the latest and greatest. If you need easy get these. If you want slim secure banana plugs buy the small screw type.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 3, 2025
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 5
GET THEM!!
Size: 12 Pairs / 24 pcs, Size: 12 Pairs / 24 pcs
Fully gold plated inside and out! I initially got the amazon basic connectors for the same price, but was disappointed in the tiny burgundy positive label they had. It was also very dirty inside the connector and it wasn’t gold plated through out the connector. These are excellent in quality and have a bright red ban on the connector! You wont be disappointed and beats out Sewell connectors for the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2025
M
Verified Purchase
Mark
New York, US
★★★★★ 2
Decent, but be careful of frequent use.
Size: 12 Pairs / 24 pcs, Size: 12 Pairs / 24 pcs
The looks are very nice, functional if left alone once assembled. After that I would leave them alone otherwise you risk the main male portion just coming loose of the housing, sound quality is decent, nothing to write home about, but again, not very durable. If they could fix that 1 thing, these would be very good buy and value, the rest of each plug is hefty and well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
J
Verified Purchase
James
Waukegan, US
★★★★★ 5
Great Banana Plugs
Size: 6 Pairs / 12 pcs
I recently purchased these FosPower banana plugs to tidy up my speaker wiring, and they’ve been a significant improvement over bare wire ends. Installation is straightforward: strip the wire, loosen the two tiny set screws, slide the wire in, tighten everything down, and then screw the barrel back on. Once assembled, the connection feels secure and tight, making it much easier to swap gear around and reducing the risk of stray strands causing a short. The standout feature of this design is the dual set-screw clamp. It firmly grips the speaker wire without relying on the outer collar to “crush” it in place. I’m using 12-gauge wire, and it holds well for my setup. Initially, the plugs may fit snugly in some binding posts. Once seated, there’s no wobble, but it might take a bit of extra push the first time. The set screws are small, so a bit of precision is needed. Use a small flathead screwdriver and don’t over-tighten them. Overall, these plugs feel well-made, look clean once installed, and fulfill their purpose as banana plugs: making speaker connections quick, neat, and reliable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026

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