370 Slack Reducing Coupling

The 370 slack reducing coupling is frequently used in dump and pup applications. Our popular 370 model offers users a low profile, high latch strength, and a Premalloy body for maximum wear. This coupling must be used with an air service chamber. With a maximum gross trailer weight of 90,000 lbs., our 370 coupling is perfect for medium-to-heavy duty hauling.


Description

MODELS

Model #Part #Description
37010004757370 Coupling & 271 Thimble
370A10004759370 Coupling, 502 Bolt Kit, 281 Air Chamber, 467 Air Chamber Adapter Bracket, 271 Thimble
370A-210004760Same as 370A, without the 502 Bolt Kit
370A-28210004761Same as 370A, with 282 Air Chamber instead of 281
370A-467H10004762Same as 370A, with 467H Air Chamber Adapter Bracket instead of 467
370AF10004763Same as 370A, with 467F Air Chamber Adapter Bracket instead of 467

KIT COMPONENTS & ACCESSORY PARTS

Model #Part #Description
27110000107Thimble
50210000150Bolt Kit
28110000116Air Chamber, Type 24
28210000122Air Chamber, Type 30
46710000135Air Chamber Adapter Bracket (2 3/4 in. overall length)
467F10000138Air Chamber Adapter Bracket (5 1/2 in. overall length)
467H10000140Air Chamber Adapter Bracket (3/4 in. overall length)
370PK10000325Parts Kit
279PK10000315Parts Kit (for 279 Shoe)
37810004766Drawbar Guide Set (Left & Right Sides Incl.)
378L10000124Drawbar Guide, Left Side Only
378R10000129Drawbar Guide, Right Side Only
1401110000059Wear Gage
1402610000071Wear Gage, Latch Gage Bar

SPECIFICATIONS

Maximum Gross Trailer Weight90,000 lbs. (40,823 kg)
Maximum Tongue Weight18,000 lbs. (8,165 kg)
Ultimate Latch Capacity20,000 lbs. (9,072 kg)
Maximum Eye X-Section1 13/16 in. (46 mm)
Minimum Eye Opening2 3/8 in. (60 mm)
Unit Weight30 lbs. (13.6 kg)
  • Custom Truck Accessories

    271 Thimbles

    Premier’s 271 Thimbles are highly wear resistant. They are used on the end of the pushrod …

  • Custom Truck Accessories

    281 & 282 Air Chambers

    Premier’s 281 & 282 are not your typical Air Chambers! They are built to last in the rigorous service of …

  • Custom Truck Accessories

    370PK Parts Kit

    Premier’s 370PK Parts Kit is for use with our370, 370B, 570, and 770 Couplings. You can access the Installation, Inspection, Operation, and Maintenance guides which contain important safety and product details on each of the coupling website pages. Get these replacement parts today to properly maintain your equipment.

  • Custom Truck Accessories

    467 & 767 Air Chamber Brackets

    Premier’s 467 & 767 Air Chamber Brackets are designed for use with the Slack Reducing Coupling models listed below. The 467 series is available in three lengths to meet your particular mounting structure requirements. Check out the Optional Accessories tab below for additional installation components and order from Premier today!

     

  • Custom Truck Accessories

    Bolt Kits

    Premier’s individually packaged Bolt Kits make the hardware selection for your Coupling and/or Drawbar Eye fast and easy. All kits (except 159** & 511**) use coarse threaded Grade-8 fasteners and Grade-C crimp style locknuts, for a strong and secure mounting system.  You can access the Installation, Inspection, Operation, and Maintenance guides which contain important information on each of our …

  • Custom Truck Accessories

    Drawbar Guides

    Premier’s Drawbar Guides act as an aid to operators when hooking up equipment. These guides are cast from high strength steel and are easily installed by welding to the rear cross member. Drawbar Guides can be purchased individually (left or right sides only) and as a complete set. Check out the models listed below and the couplings they are …

  • Custom Truck Accessories

    Wear Gages

    <span data-sheets-value="{"1":2,"2":"To determine wear limits, Premier Manufacturing created wear gages that help judge the useful life of couplings, pintle hitches, and drawbar eyes. Available as a complete kit or individually, these gages are easy to use and are a must for maintenance managers and safety personnel.\nIn accordance with Premier Manufacturing and the Federal Motor Carrier Safety Regulations, these were ...

Below are the Compatible Drawbar Eyes, to see the full reference chart click here.
  • Drawbar Eyes

    8 Weld-On Drawbar Eye

    Premier’s 8 Weld-On Drawbar Eye has a maximum gross trailer weight of 100,000 lbs. Check out the Installation Guide below for more information and order from your local distributor today!
    D<span data-sheets-value="{"1":2,"2":"The 110 weld-on slack reducing drawbar eye is perfect for your every day trucking needs. This slack reducing eye was designed for 2 1/2 inch (64 mm) ...

  • Drawbar Eyes

    6A Weld-On Drawbar Eye

    Premier’s 6A Weld-On Drawbar Eye is an amazing addition to your trucking arsenal. It is perfect for pulling up to 100,000 lbs. in trailer weight! Check out the Installation Guide below for additional information. Find a distributor today!

  • Drawbar Eyes

    6 Weld-On Drawbar Eye

    Premier’s 6 Weld-On Drawbar Eye is a great choice for all of your trucking needs. With a maximum gross trailer weight of 100,000 lbs. and a maximum tongue weight of 15,000 lbs. Order from a distributor today!

  • Drawbar Eyes

    5 Weld-On Drawbar Eye

    The 5 Weld-On Drawbar Eye from Premier Manufacturing is perfect for all of your trucking needs. It has a maximum gross trailer weight of 90,000 lbs. Find a distributor in your area today!

  • Drawbar Eyes

    407SE Swivel Drawbar Eye

    Our 407SE Swivel Drawbar Eye is only to be used with Premier Front End Housings.  Bushings are not included.  Check out the Optional Accessories tab to access more information on our 546R & 556R Front Ends which include the housing, bushings, and washer.  The 407SE Swivel Drawbar Eye from Premier Manufacturing has a maximum gross trailer weight of …

  • Drawbar Eyes

    405 Swivel Drawbar Eyes

    Our 405 Swivel Drawbar Eyes are only to be used with Premier Front End Housings.  Bushings are not included.  Check out the Optional Accessories tab to access our selection of front ends which include the housing, bushings, and washer.
    This Drawbar Eye is also Slack-Reducing! It can be used with Premier’s 500 Mechanical Slack Adjuster or  281 and 282 …

  • Drawbar Eyes

    4 Weld-On Drawbar Eye

    The 4 Weld-On Drawbar Eye from Premier Manufacturing has a maximum gross trailer weight of 90,000 lbs. and a maximum tongue weight of 13,500 lbs. Order this part from a distributor today!

  • Drawbar Eyes

    309 Weld-On Drawbar Eye

    The 309 Weld-On Drawbar Eye by Premier Manufacturing boasts a maximum gross trailer weight of 150,000 lbs. Locate a distributor in your area today!
    Designed For: 4 in. (102 mm) round tubing

  • Drawbar Eyes

    307 Swivel Drawbar Eyes

    Premier’s 307 Swivel Drawbar Eyes are only to be used with our Front End Housings.  Bushings are not included.  Check out the Optional Accessories tab to access our selection of front ends which include the housing, bushings, and washer.  With a maximum gross trailer weight of 150,000 lbs., the 307 is perfect for a variety of heavy-duty …

  • Drawbar Eyes

    305 Weld-On Drawbar Eye

    The 305 Weld-On Drawbar Eye from Premier Manufacturing is designed for rectangular tubing, features a max gross trailer weight of 150,000 lbs. Order from a distributor today!

    Designed For: Rectangular tubing, 2 in. x 4 in. (51 mm x 102 mm) and 4 in. x 4 in. (102 mm x 102 mm)

  • Drawbar Eyes

    304 Weld-On Drawbar Eye

    The 304 Weld-On Drawbar Eye Order from Premier Manufacturing offers a maximum gross trailer weight of 150,000 lbs and a maximum tongue weight of 15,000 lbs. Find a distributor today!

  • Drawbar Eyes

    300HD Bolt-On Drawbar Eye

    Premier’s 300HD Bolt-On Drawbar Eye  Premium Manufacturing that has the same 3” ID as our 300 Drawbar Eye. Our 300 uses 3/4” mounting hardware. Whereas, the 300HD uses 7/8” mounting hardware and has a higher tongue capacity. Check out the Optional Accessories tab below for bolt kit and wear gage information.

  • Drawbar Eyes

    300 Bolt-On Drawbar Eye

    Premier Manufacturing’s 300 bolt-on drawbar eye is an exceptional addition to your trucking needs. It features a maximum gross trailer weight of 100,000 lbs. and a maximum tongue weight of 15,000 lbs. Don’t forget to check the corresponding bolt kit (model# 507) and wear gage (model # 14032) listed under the Optional Accessories tab below. Order from a distributor today!

    <button ...

  • Drawbar Eyes

    245DB-3 Bolt-On Drawbar Eye

    The 245DB-3 Bolt-On Drawbar Eye is an exceptional tool for your hauling needs. With a maximum gross trailer weight of 100,000 lbs. and a maximum tongue weight of 8,000 lbs., it is perfect for a variety of mid-to-heavy-duty applications. Don’t forget to check the corresponding wear gage (model # 14005) listed under the Optional Accessories tab below.

    <button class="cswidget" data-csi_utm_campaign="[]" data-csi_utm_medium="[]" ...

  • Drawbar Eyes

    238DB Bolt-On Drawbar Eye Product Discontinued

    The 238DB Bolt-On Drawbar Eye is an exceptional tool for your hauling needs. With a maximum gross trailer weight of 100,000 lbs. and a maximum tongue weight of 8,000 lbs., it is perfect for a variety of mid-to-heavy-duty applications. Don’t forget to check the corresponding wear gage (model # 14005) listed under the Optional Accessories tab below.

    <button class="cswidget" data-csi_utm_campaign="[]" data-csi_utm_medium="[]" ...

  • Drawbar Eyes

    23 Weld-On Drawbar Eye

    The 23 Weld-On Drawbar Eye offers a 45 degree, unique …

  • Drawbar Eyes

    22 Weld-On Drawbar Eye

    The 22 Weld-On Drawbar Eye offers a 30 degree “V” angle …

  • Drawbar Eyes

    21 Weld-On Drawbar Eye

    The 21 Weld-On Drawbar Eye …

  • Drawbar Eyes

    207 Swivel Drawbar Eyes

    Our 207 Swivel Drawbar Eyes are only to be used with Premier Front End Housings.  Bushings are not

  • Drawbar Eyes

    205 Weld-On Drawbar Eye

    <span data-sheets-value="{"1":2,"2":"The 205 weld-on drawbar eye from Premier Manufacturing is an exceptional addition to your hauling equipment. It is designed for rectangular tubing that is 2 inches by 4 inches (51 mm x 102 mm) and 4 inches by 4 inches (102 mm x 102 mm). With a maximum gross trailer weight of 100,000 lbs, this drawbar eye is ...

  • Drawbar Eyes

    20 Weld-On Drawbar Eye

    The 20 Weld-On Drawbar Eye from Premier Manufacturing is the …

  • Drawbar Eyes

    127 & 127F Bolt-On Slack Reducing Drawbar Eyes

    Made with our durable Premalloy, the 127 Bolt-On Slack Reducing Drawbar Eye is perfect for all of your trucking needs. It was designed for use with Premier’s 500 Mechanical Slack Adjuster or  281 and 282 Air Service Chambers. Slack Reducing Eyes work to maintain a tight fit between the drawbar eye loop and pintle hook. The snug fit improves the ride & …

  • Drawbar Eyes

    110 Weld-On Slack Reducing Drawbar Eye

    The 110 Weld-On Slack Reducing …

Additional information

MATERIAL

MGTW

SLACK REDUCED