The Multiquip 11099 Exhaust Valve Insert is a genuine OEM component designed for C30HDN, C30HDNI, C30HDNI Precision, and C30HDNI Zenith concrete pumps, as well as JTO-SERIES ride-on power trowels. Sourced directly from Multiquip, this insert matches the original part exactly, ensuring a correct seat fit within the cylinder head. If you are servicing any of these models, verifying the part number against your equipment's serial plate before ordering is always recommended.
Key Features
- Genuine OEM Material Grade — Manufactured to the same hardness and heat-resistance specification as the original, holding up to the sustained thermal stress of exhaust cycle operation.
- Direct Head Replacement — Engineered to press into the cylinder head bore with the same interference fit as the factory insert, requiring no machining adaptation.
- Broad Model Coverage — Confirmed fitment across C30HDN, C30HDNI, C30HDNI Precision, C30HDNI Zenith, and JTO-SERIES equipment — one part number covering multiple units in your fleet.
- Sustained Sealing Performance — A correctly seated exhaust valve insert maintains proper compression and valve sealing; a worn or damaged insert leads to compression loss, rough running, and accelerated valve wear.
- Verified Multiquip Part Number — Part number 11099 is the authoritative Multiquip reference for this insert, giving you confidence when cross-referencing against parts manuals or service documentation.
The exhaust valve insert is a hardened ring pressed into the cylinder head that provides the sealing surface against which the exhaust valve closes. Because exhaust gases exit at high temperature and pressure, this seat must resist both heat and impact over thousands of operating cycles. When the insert wears, becomes pitted, or loosens in its bore, the exhaust valve can no longer seal cleanly, causing compression leakage, loss of engine power, and increased fuel consumption. Replacing a worn insert with a genuine OEM unit restores the correct seating geometry and extends the service life of the valve itself.
Part Details
| Part Number | 11099 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Exhaust Valve Insert |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI |
| Mayco Pumps | C30HDNI Precision |
| Mayco Pumps | C30HDNI Zenith |
| Whiteman Ride-On Power Trowels | JTO-SERIES |
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.
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