The Multiquip 2773620200 Exhaust Rocker Arm Assembly is a genuine OEM component designed for B46S90 series Whiteman walk-behind power trowels. Sourced directly from Multiquip, this part meets the exact specifications of the original assembly it replaces, ensuring correct valve actuation geometry and consistent engine performance. If you are servicing the valvetrain on a B46S90 trowel, the 2773620200 is the correct OEM exhaust-side rocker arm assembly for the job.
Key Features
- Genuine OEM Valvetrain Precision — Manufactured to the exact pivot geometry and surface hardness spec of the original exhaust rocker arm, ensuring correct valve lift and timing on every stroke.
- Direct Assembly Swap — Mounts to the existing rocker shaft and cylinder head without machining or shimming, restoring the exhaust valvetrain to its original configuration.
- Confirmed Fitment for B46S90 — Verified OEM replacement for the Whiteman B46S90 walk-behind power trowel series.
- Restores Full Engine Breathing — A worn or damaged exhaust rocker arm causes incomplete valve opening, leading to poor exhaust scavenging, loss of power, and rough running; replacing it with 2773620200 restores proper combustion cycle efficiency.
- Valve System Safety — Correct rocker arm geometry prevents valve float and contact with the piston crown, protecting the engine from catastrophic internal damage during operation.
The exhaust rocker arm assembly transfers motion from the camshaft lobe — via the pushrod — to the exhaust valve stem, opening the valve at precisely the right moment to expel combustion gases from the cylinder. It must maintain accurate contact geometry and smooth pivot action to deliver consistent valve lift across the engine's RPM range. When a rocker arm wears, cracks, or loses its correct clearance, valve timing suffers, leading to power loss, increased heat, and potential engine damage if left unaddressed.
DHS Equipment is an authorized Multiquip parts dealer. If you need help confirming this part fits your specific machine, contact our team with your model and serial number before ordering.
Part Details
| Part Number | 2773620200 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Exhaust Rocker Arm Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | B46S90 |
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.
