We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Three steel grease couplers with three-jaw ends and threaded bases

Westward

Westward 45FG41 Grease Coupler Steel PK3 accessory

SKU CH-JBD9-5AZDP

Three-pack of steel 3-jaw grease couplers rated for 10,000 psi working pressure

  • Steel jaws resist deformation under 10,000 psi working pressure
  • Heat-treated coupler body withstands high pressure without bending
  • Built-in ball check prevents grease back-flow during use
  • Three couplers per pack supply multiple gun set-ups
  • 1/8 FNPT connection fits standard grease gun fittings

3-Pack Steel Grease Couplers

These three steel grease couplers connect to standard grease guns for lubrication tasks. Each unit uses a 1/8 FNPT thread and a 1/2 inch size for attachment. The heat-treated coupler body and steel jaws resist deformation under high pressure. They are sold new in a pack of three for workshop or fleet use.

10 000 psi Working Pressure Limit

The couplers are rated for a working pressure of 10 000 psi with a minimum burst pressure at the same value. This rating defines the maximum force the steel jaws and body can handle without failure. Exceeding this pressure risks deformation or rupture during operation. The integrated ball check helps maintain seal integrity at this limit.

Check Gun Thread and Pressure Rating

Verify your grease gun provides a 1/8 FNPT connection before ordering. Confirm the gun's maximum output pressure does not exceed 10 000 psi to match the coupler rating. The pack contains three identical units, so ensure you need multiple couplers. This product carries a California Proposition 65 warning for cancer and reproductive harm.

Highlights

  • Steel jaws resist deformation under 10,000 psi working pressure
  • Heat-treated coupler body withstands high pressure without bending
  • Built-in ball check prevents grease back-flow during use
  • Three couplers per pack supply multiple gun set-ups
  • 1/8 FNPT connection fits standard grease gun fittings

Specifications

BrandWESTWARD

Questions about this item

Does the pack contain three individual couplers or a single three-piece assembly?

The package quantity is three separate steel grease couplers, each with a 3-jaw design, ball check and heat-treated body rated for 10,000 psi working pressure.

What does the 10,000 psi rating mean when the coupler is attached to a grease gun?

It indicates the maximum working pressure the steel jaws and heat-treated body can withstand without deformation during normal lubrication tasks.

How does the 1/8 FNPT connection affect compatibility with my equipment?

The 1/8 FNPT thread fits standard grease-gun outlets and hoses that use the same taper-thread size.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.