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XYZIL Crankcase Ventilation Breather Element Review: OEM-compatible breather for heavy trucks?

XYZIL Crankcase Ventilation Breather Element CV50633 4312011 Compatible with Cummins Onan 220124 3683918 3685528 for Kenworth for Peterbilt for International 904-7904 CV50617 CV50634
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[Comprehensive Part Cross-Reference]  Multiple part numbers ensure easy identification and fitment (e.g., 904-7904, 99340, 45VH04).
[Cummins ISX 15 Compatible]  Direct fit for Cummins ISX 15.0 engines, model years 2010–2012.
[Volvo Truck Coverage]  Compatible with Volvo VNL and VT trucks from 2008–2013 for reliable replacement.
[Western Star Fitment]  Fits Western Star 4900EX, 4900FA, 4900SA models (2009–2013) for direct replacement.
[Peterbilt Model Coverage]  Covers many Peterbilt models (2008–2013), including 320, 365, 387, 357, 579, 587.
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Engine replacement part aimed at restoring correct crankcase ventilation for heavy-duty rigs, the XYZIL Crankcase Ventilation Breather Element helps maintain normal engine breathing. Fleet managers and workshop technicians gain confidence from clear fitment references and straightforward replacements. Is the breather the right match for specific Cummins and truck models listed below?

⚡ At a Glance
  • Filtration Performance: Supports crankcase venting and particulate control as a breather element
  • Best for: Fleet mechanics and truck owners needing direct-fit replacement parts
  • Not ideal for: Owners of vehicles not listed in the compatibility notes

Breather element designed for crankcase ventilation with multiple cross-referenced part numbers. Fitment covers a range of Cummins, Volvo, Western Star and Peterbilt models for straightforward replacement.


Straightforward Replacement, with cross-referenced part numbers

Part-number list includes 904-7904, 220124, 3683918, 3685528, 4312013 and many OEM cross-references. Listings note compatibility with Cummins ISX 15.0 and several heavy-truck model years.

Quick identification of the correct spare reduces ordering errors and speeds up repairs. Useful when replacing breathers across multiple trucks with differing original reference numbers.

Maintains Engine Venting, with a purpose-built breather element

Function as a crankcase ventilation breather allows trapped gases to escape and helps regulate crankcase pressure. The component connects into the engine ventilation system as a venting element.

Restoring proper ventilation helps keep engine breathing in expected range and supports routine engine operation. Suitable for scheduled maintenance and mid-life replacements.

Wide Model Fitment, with explicit vehicle compatibility

Compatibility details list Cummins ISX 15.0 (2010-2012) and specific models and years for Volvo, Western Star and Peterbilt. Numerous part numbers and cross-references are provided to match original equipment.

Spares inventory can be standardised using one reference across multiple truck makes and model years. Handy for workshops that service mixed fleets.

✨ The 4 Key Reasons for XYZIL Crankcase Ventilation Breather Element
  1. Extensive part-number cross-reference - Speeds up correct replacement identification
  2. Direct fit for listed engines - Minimises gearbox downtime during routine maintenance
  3. Designed for heavy-duty rigs - Matches common truck venting arrangements across brands
  4. Simplifies fleet spares management - Reduces time spent locating compatible breathers
📋 Technical Details at a Glance
  • Category: Crankcase ventilation breather element
  • Brand: XYZIL
  • Product Type: Breather element for crankcase ventilation
  • Part Numbers (examples): 904-7904, 99340, 220124, 3683918, 3685528, 4312013
  • Cross-reference IDs: CV50601, CV50607, CV50617, CV50633, CV50634, CV15000
❓ Frequently Asked Questions

Q: Which engines is the breather compatible with?

A: Compatibility is confirmed for Cummins ISX 15.0, model years 2010 to 2012.

Q: Which truck makes and years are supported?

A: Compatibility notes list Volvo VNL (2008-2013), Volvo VT (2008-2010), Western Star 4900EX/4900FA/4900SA (2009-2013) and multiple Peterbilt models across 2008-2013 as provided.

Q: Does the breather replace part number 904-7904?

A: Yes, 904-7904 is included among the listed part numbers and cross-references.

🏆 Our Verdict

Ideal for fleet technicians and truck owners who need a direct-replacement breather for specified heavy-duty engines. Broad cross-references and explicit vehicle listings make fitment straightforward and reduce guesswork. The part represents sensible long-term value for workshops aiming to keep downtime to a minimum and spares lists organised.