New Arrivals/Restock

Master Lock - Fits 1-7/8" and 2" Couplers - (4) Keyed Alike Trailer Coupler Locks 377KA-4

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US$89.33 cheaper than the new price!!

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Used  US$59.55
quantity

Product details

Management number 215348147 Release Date 2026/04/12 List Price US$59.55 Model Number 215348147
Category

The Master Lock No. 377KA features a trailer coupler lock, designed to fit 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) trailer couplers. The advanced locking mechanism provides resistance to picking and prying. The Master Lock No. 377KA guards against trailer towaway theft. Fits Most 1-7/8" and 2" ball diameters of the following coupler brands: Reese, Fulton, Valley, Atwood, Putnam, Marvel, Ideal, Acme, Dutton-Lainson. Advanced locking mechanism resists picking and prying. Easy to install and remove. It resists rust and corrosion and has a lifetime guarantee. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.

  • This listing is for (4) four 377KA coupler locks keyed alike and 8 keys.
  • ATTENTION: If you order two 4-packs they will NOT necessarily be keyed the same. To ensure you get two 4-packs keyed alike, you must order the 8-pack.
  • SPECIFICATIONS: Fits 1-7/8", 2" and some 2-5/16" trailer couplers. For 2-5/16" couplers we recommend a different lock, search Master Lock 379KA.
  • DURABLE DESIGN: Aluminum diecast finish resists rust and corrosion. Advanced locking mechanism resists picking and prying. Easy to install and remove.
  • Limited Lifetime Warranty provides peace of mind from a brand you can trust.
UPC 071649212857
Color Silver
Shape Round
Lock Type Key Lock
Brand Name Master Lock
Style Name Modern
Unit Count 4.0 Count
Finish Types Powder Coated
Manufacturer Master Lock
Model Number 377KA-4
Material Type Aluminum
Control Method Touch
Controller Type Hand Control
Additional Features Anti Rust
Recommended Uses For Product Securing trailers
Manufacturer Warranty Description MASTER LOCK PRODUCT WARRANTY: Limited Lifetime Warranty. Master Lock Company LLC (Master Lock) grants the following warranty: If this product or any part of the product fails due to a defect in materials or workmanship at any time during the life of the product, Master Lock will, at its own discretion, repair or replace the product or part free of charge. Simply contact Master Lock at www.masterlock.com or 1.800.464.2088 for instructions on obtaining repair or replacement.

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