Dexter 4″ Screw Dust Cap

$56.30 inc GST

SKU: K71-148-00 Category:


Dexter 4″ Screw Dust Cap

Dexter 4″ Screw Dust Cap. 2 x Oil Cap, 2 x O-Ring, 2 x Plug Kit. (Pair)

Fits screw-in oil/dust cap for 9K hubs (prior to 10/89) and 10K, 12K, 15K, 4″-12 threads.

Use SAE 50W or 90W gear oil in the oil bath hub. Oil can be mixed if necessary.

The wheel seal is a critical element because the bearings will fail without reliable seal performance. Wheel seals must achieve five functions.

  • they must keep the dirt and water out of the hub
  • seals must keep the lubricant inside the hub without substantial leaks
  • they must resist deterioration due to temperature and lubrication
  • seals have low rubbing friction, to avoid drag loss and friction heating

The enemy of oil bath systems is axle wear and tear. Lubricant escapes under worn seal journals.

Clear polycarbonate cap functions as a grease cap or oil cap featuring a watertight O-ring rubber seal.

  • Outside Diameter – 4″ / Thread 4″-12 / Depth 1-1/2″
  • Oil caps, oil rings and rubber plugs are included
  • Fits Dexter 9K (AFTER 10-1-89), 10K, 12K and 15K hubs

Contact the experts at Couplemate for more information

Purchase other steel and grommet caps here:

Couplemate Trailer Parts sells only the best quality Dexter 4″ Screw Dust Cap and caravan spare parts throughout Australia.

Customers are welcome to either pickup or take advantage of our low freight rates. Express shipping to Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and Hobart.

We also ship products to New Zealand via Australia Post Air Express.

© Steve Wotherspoon August 15, 2019. Images and text may be copied, provided a link back to the copied page and the source is displayed where the content or image is located.

Additional information

Weight 0.5 kg
Dimensions 20 × 15 × 5 cm


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