The Multiquip 458451630 is a genuine OEM Breather Cap designed for MVH-series reversible plate compactors and the MRH601DS walk-behind roller. As a direct OEM replacement sourced from Multiquip, part 458451630 matches the original component exactly, ensuring correct fit and function across a wide range of compatible machines. Verified fitment includes the MVH308DZ, MVH308DE, MVH308GH, MVH408DZ, MVH408DE, MVH408GH, MVH408GV, MVH508DZ, MVH508DE, MVH508GH, MVH508GV, MVH208GH, MVH158GH, MVH128GH, MVHeR60, and MRH601DS.
Key Features
- Genuine OEM Venting Integrity — Manufactured to Multiquip's original specification, this breather cap maintains correct crankcase pressure balance without risk of ill-fitting aftermarket substitutes allowing contamination.
- Direct Drop-In Replacement — Engineered to seat and seal identically to the original, this cap installs without modification on all listed MVH and MRH compatible models.
- Broad MVH-Series Coverage — A single part number covers MVH308, MVH408, and MVH508 reversible plate compactors across diesel, gas, and electric variants, as well as the MRH601DS roller.
- Protects Engine Internals — A properly functioning breather cap prevents dirt, debris, and moisture from entering the crankcase, guarding internal engine components against premature wear and oil contamination.
- Fuel and Oil System Safety — A cracked or missing breather cap can allow unfiltered air into the crankcase or cause pressure buildup, leading to oil leaks and potential engine damage during compaction operations.
A breather cap controls crankcase ventilation by allowing pressure that builds up inside the engine during operation to vent safely, while preventing outside contaminants such as dust and moisture from entering. On reversible plate compactors and walk-behind rollers operating in dirty, dusty environments, this small component plays a critical role in maintaining clean oil and stable engine pressure. When a breather cap cracks, clogs, or goes missing, the engine may develop oil leaks, suffer accelerated internal wear, or experience erratic running due to improper crankcase pressure.
For questions about fitment or to confirm compatibility with your specific machine, contact the DHS Equipment parts team.
Part Details
| Part Number | 458451630 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Breather Cap |
Compatibility & Fitment
| Name | Model |
|---|---|
| Plate Compactors | MVH508DZ |
| Plate Compactors | MVH408DZ |
| Plate Compactors | MVH308DZ |
| Rollers | MRH601DS |
| Plate Compactors | MVH308GH |
| Plate Compactors | MVH408GH |
| Plate Compactors | MVH158GH |
| Plate Compactors | MVH128GH |
| Plate Compactors | MVH208GH |
| Plate Compactors | MVH508GH |
| Plate Compactors | MVHeR60 |
| Plate Compactors | MVH308DE |
| Plate Compactors | MVH408DE |
| Plate Compactors | MVH408GV |
| Plate Compactors | MVH508DE |
| Plate Compactors | MVH508GV |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
