If you need the PCV (Positive Crankcase Ventilation) valve part number for a 2000 Newmar Mountain Aire, follow the steps below to identify the correct part quickly and accurately.
1. Verify the engine
The exact PCV valve depends on the RV’s engine. The 2000 Mountain Aire commonly came with one of these engines:
- Ford V10 Triton — part of Ford’s modular engine family; see more on the Ford Modular engine (Wikipedia).
- Chevrolet 454 V8 — a Chevrolet big-block V8; learn more at Chevrolet big-block engines (Wikipedia).
If you’re not sure which engine is installed, check the engine bay for the model plate, review the RV’s build or service documents, or decode the VIN using the NHTSA VIN decoder: vpic.nhtsa.dot.gov/decoder. You can also look for an engine serial number on the block or the engine label and compare that to factory records or dealer parts lookups.
2. Consult the owner’s and engine manuals
The RV owner’s manual or the engine manufacturer’s service and parts manuals usually list recommended PCV valve part numbers. If you don’t have physical copies, many manufacturers publish digital parts catalogs and service guides online—these are the most reliable sources for exact fitment.
3. Contact parts suppliers or a dealer
When you contact a parts supplier or dealership, provide as much information as possible so they can match the correct PCV valve. Helpful details to have ready:
- Vehicle: 2000 Newmar Mountain Aire
- Engine make, model, and displacement (for example, Ford V10 Triton or Chevrolet 454 V8)
- VIN and engine serial number, if available
With these details, parts specialists can verify fitment through OEM databases and reduce the risk of ordering an incompatible part. Official OEM parts pages—such as Ford Parts (OEM) and ACDelco—are good places to confirm part numbers.
4. Search parts catalogs online
Use specific search terms such as “Ford V10 Triton PCV valve” or “Chevrolet 454 PCV valve” to narrow results. Many vendors also provide VIN- or application-based lookup tools. Good starting points:
- Ford Parts (OEM) and Motorcraft (Ford OEM parts)
- ACDelco (GM OEM and aftermarket parts) and GM Parts Center
- RockAuto (comprehensive aftermarket parts catalog)
- AutoZone — PCV valve replacement guide (helpful for visual identification and DIY checks)
Common part numbers (typical matches)
- Many Ford V10 Triton engines commonly use Motorcraft EV-248. Confirm compatibility with your engine variant and production year before buying.
- For Chevrolet 454 V8 engines, items such as ACDelco CV4000C are frequently listed—again, verify fitment for your engine’s exact model and year.
Part numbers can vary by production run and engine sub-model. If you choose an aftermarket alternative, compare the critical details—thread size, hose connection type, and vacuum fittings—with the original to ensure proper installation.
How to confirm the correct PCV valve
- Cross-reference any candidate part number with the engine’s specifications or the manufacturer’s official parts catalog.
- If possible, bring the old PCV valve—or clear photos showing all fittings, threads, and hose connections—to the parts counter. Visual comparison prevents ordering the wrong item.
- Measure thread diameter and pitch, hose barb size, and vacuum fitting style if you have calipers or a thread gauge—these dimensions are often listed in parts catalogs and make cross-checking easier.
- When in doubt, consult a trusted mechanic; they can confirm fitment and installation requirements and help avoid installation mistakes.
Quick inspection tips and symptoms of a failing PCV valve
A failing PCV valve can cause rough idle, increased oil consumption, oil leaks, excessive crankcase pressure, or poor fuel economy. To inspect the valve:
- Locate the valve—typically on the valve cover or intake manifold—and remove it for a visual check.
- Shake the valve gently; a light rattle usually indicates the internal check is free. If it’s stuck, clogged, or saturated with oil and sludge, replace it.
- Inspect related hoses, grommets, and clamps; replace brittle, cracked, or collapsed hoses to prevent vacuum leaks.
- For a general overview of the PCV system and how it works, see the Positive Crankcase Ventilation (Wikipedia) article.
Final tips
- Always verify the exact PCV valve using trusted sources such as manufacturer parts catalogs, dealership databases, or a professional mechanic.
- Compare fitment details—threads, hose sizes, vacuum fittings—before purchasing to ensure a correct replacement.
- When replacing the PCV valve, inspect and replace any worn hoses, grommets, or clamps to maintain proper crankcase ventilation and engine performance.
Confirming the exact PCV valve through official parts catalogs, dealership resources, or experienced mechanics will help ensure the correct fit and maintain the performance and reliability of your 2000 Newmar Mountain Aire.
