The Multiquip MM434339 Piston & Pin BLW-300 is a genuine OEM component designed for BLW-300 series equipment. As a direct OEM replacement, this piston and pin assembly is manufactured to the exact specifications required for proper fit and function in your BLW-300 unit. Sourced directly through Multiquip's authorized parts network, MM434339 is the correct part to specify when servicing or rebuilding the engine on your BLW-300. DHS Equipment stocks this genuine OEM assembly so you can get your machine back to work with confidence.
Key Features
- Genuine OEM Piston Tolerancing — Manufactured to exact bore diameter and compression height specifications required for correct sealing and ring seal performance in the BLW-300 engine.
- Matched Piston and Pin Assembly — Piston and wrist pin are supplied together as a matched set, ensuring correct pin bore alignment and proper load transfer during every power stroke.
- Direct Fitment for BLW-300 — Engineered specifically for BLW-300 equipment; installs into the existing cylinder bore without modification to the block or connecting rod.
- Sustained Compression and Power Output — A correctly fitted piston maintains cylinder compression, supporting full power output and smooth engine operation; a worn or damaged piston leads to loss of compression, excessive oil consumption, and hard starting.
- Authorized Multiquip OEM Part — Part number MM434339 is an authorized Multiquip replacement, ensuring you receive the correct component for your BLW-300 rather than a generic substitute.
The piston and pin are the core reciprocating components inside the engine cylinder. The piston travels up and down within the bore to compress the air-fuel mixture and transfer combustion force to the crankshaft through the connecting rod, while the wrist pin forms the pivoting link between the two. When a piston wears, becomes scored, or the pin develops play in its bore, compression drops, oil consumption rises, and engine performance deteriorates rapidly. Replacing both components together as a matched assembly restores the correct running clearances and ensures the engine returns to its specified output.
Part Details
| Part Number | MM434339 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston & Pin BLW-300 |
Compatibility & Fitment
| Name | Model |
|---|---|
| BLW-300 | BLW-300 |
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.
