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SKU: R1401 Ruffstuff Oil Fill Plug

Ruffstuff Oil Fill Plug
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Purchase Ruffstuff Oil Fill Plug
  • Ruffstuff Oil Fill Plug

  • ★★★★★ ★★★★★ 3 reviews
  • Part Number: R1401
  • Shipping Weight: 0.50 pounds

  • $43.95

  • This Product Qualifies for FREE Shipping on Orders Over $250!

This is the fill plug we use for our axle housings. The easy grip makes for a tight fit and easy removal. These have a very large 1.25" view hole so you can keep up with what's going on in there.


  • Aluminium fill plug
  • Steel weld in bung
  • O ring

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★★★★★ ★★★★★
5.00/5 Stars out of 3 Reviews
“Aluminum fill cap”
Thomas cuthbert (Ukiah ca) | September 24th, 2021
Mine showed up as a 1” square head steel pipe plug meant to use a 1/2” ratch. And a steel “bung” definitely not as described and no “aluminum” I could have went to homedepot for this same set up and payed 7$. I didn’t use it and had to go with the trail gear one. Sept 2021
Verified Buyer
Looks good and works better
david machtaler (oroville, WA, US) | December 7th, 2017
Good quality part with a thick weld on bung that shouldn't shrink up when you weld it. Big enough for an inspection port and no funnel needed. Nice thick threads that will last a long time. Shipping was fast. Skip the pipe threads and do it right the first time.
Verified Buyer
Fill plug
Chris Sergeew (Edmonton, Alberta, CA) | September 4th, 2014
Installed this on my 9". Highly recomend it as a fill/inspection port. High quality part that looks great too.

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⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer. For more information, go to
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