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
Silver metal 18 inch rigid grease gun extension with threaded ends

Westward

Westward 21EM31 18 in Grease Gun Extension

SKU CH-YKNZ-RF0HQ

An 18 in white zinc plated rigid extension with 1/8 in MNPT connections rated to 12,000 psi max pressure for grease gun use

  • 18 in rigid extension reaches tight fittings
  • 1/8 in MNPT threads fit standard grease guns
  • 12,000 psi max pressure handles heavy-duty lubrication
  • 6,000 psi working pressure ensures reliable daily use
  • White zinc plated finish resists corrosion

Westward 21EM31 18 in Extension

The Westward 21EM31 is an 18 in rigid extension designed for use with a grease gun. It features a 1/8 in MNPT connection on both ends. The white zinc plated finish provides corrosion resistance for workshop environments. This new accessory suits mechanics needing extra reach during lubrication tasks.

Sustained Pressure Performance

The extension is rated for a maximum pressure of 12,000 psi and a working pressure of 6,000 psi. High strength rolled threads on both ends maintain seal integrity under continuous load. The rigid construction prevents flexing during extended pumping sessions. It delivers consistent fluid transfer without deformation at the rated working pressure.

Installation and Common Issues

The 1/8 in MNPT threads allow direct attachment to compatible grease guns and couplers. Users must verify thread compatibility with their specific equipment before installation. Over-tightening can damage the rolled threads or the mating component. California Proposition 65 warnings apply regarding chemicals known to cause cancer and reproductive harm.

Highlights

  • 18 in rigid extension reaches tight fittings
  • 1/8 in MNPT threads fit standard grease guns
  • 12,000 psi max pressure handles heavy-duty lubrication
  • 6,000 psi working pressure ensures reliable daily use
  • White zinc plated finish resists corrosion

Specifications

BrandWESTWARD

Questions about this item

Will the 18 in extension heat up or leak when the grease gun runs at 12,000 psi all day?

The extension is rated for a maximum pressure of 12,000 psi and a working pressure of 6,000 psi, so it handles continuous high-pressure flow without overheating or leaking.

What thread size must my grease gun have to accept this 1/8 in MNPT extension?

Your grease gun needs a 1/8 in female NPT port so the extension's male threads can screw in directly.

Can I keep using my older grease gun that only has a standard 1/8 in NPT outlet with this 18 in extension?

Yes, the extension's 1/8 in MNPT connection matches the standard outlet on older guns, and its high-strength rolled threads ensure a secure fit.

Also in this aisle

People compared these

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