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USD 68.95
Part #: XD333

XDP Cummins Billet Oil Cap With Breather XD333

1998.5-2018 Dodge Ram 5.9L/6.7L Cummins
Part #: XD333
★★★★★ ★★★★★ 6 Reviews
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Replace the oil filler cap on your 1998.5-2018 Dodge 5.9L & 6.7L Cummins with the XDP Cummins Billet Oil Cap With Breather XD333. The XD333 has been specially machined to accept a replaceable high-flow vent filter so you don't have to drill, modify, or glue a breather filter to your factory oil filler cap. The XDP Billet Oil Cap includes an o-ring seal, high-flow breather filter, and is coated with a black anodized finish for a sleek underhood look.

  • Thread-In Cap 
  • Black Anodized Finish 
  • Billet Aluminum Construction
  • Machined For High-Flow Breather Filter 

Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit. Click Here for full warranty policy.


  • MFG. Number XD333
  • Manufacturer Name XDP
  • Shipping Weight 1.00 lb.
  • Shipping Length 5 in.
  • Shipping Width 5 in.
  • Shipping Height 5 in.
  • Fuel Type Diesel
  • Cross Reference # 3973511, 68003321AA
  • Warranty Yes
  • Warranty Info 1 Year / Unlimited Mileage
  • Prop 65 WARNING: Cancer & Reproductive Harm -


★★★★★ ★★★★★
4.8/5 Stars out of 6 Reviews
Verified Buyer
(Texas) | October 24th, 2020
Very nice well made product and does what it is made for. But it is pretty tall and pushed into under hood mat with stock hood. 2007.5 6.7 cummins with stock valve cover.
(Youngsville nc) | October 17th, 2020
Works as it should, I recommend replacing your ccv filter at the same time or oil will start to be pushed through this breather. Helps you realize when your ccv is needed to be replaced. it does help Keep crank case pressure down! Great looking product also! I give it a 10 for quality.
Verified Buyer
Exactly what I needed to reduce pressure
(Washington) | August 30th, 2020
Breather is perfect way to reduce some pressure without having to break the bank on a high dollar valve cover. Looks great and functions great Order #1219335
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Emissions Notice

This product is not legal for sale or street use in California. Certain aftermarket products are subject to governmental emission standards regulated by the California Air Resources Board. In order for these products to be legal on a specific vehicle in California, the part number must receive a CARB Executive Order (EO) number. This number makes the part legal for use only on specific years, makes and models of vehicles. A decal with CARB EO number for these parts must be displayed in the engine bay to satisfy smog inspection requirements.