The Bomag 05821221 Floating Wrist Pin is a genuine OEM component designed for the BPR 65/52 D-3 reversible vibratory plate and the BW 75 S-2 walk-behind roller. As a direct OEM replacement, this wrist pin is manufactured to the same tolerances and material specifications as the original, ensuring a correct, interference-free fit in the piston assembly. Sourced directly through authorized Bomag supply channels, part number 05821221 is the right choice when restoring engine integrity on these machines.
Key Features
- OEM-Grade Pin Tolerancing — manufactured to the exact dimensional and hardness specifications of the original, maintaining proper piston-to-connecting-rod clearance for smooth engine operation
- Drop-In Engine Replacement — engineered to the same geometry as the factory original, this floating wrist pin seats correctly in the piston bore without reworking or re-sizing
- Confirmed Fitment — verified for the BPR 65/52 D-3 reversible vibratory plate and the BW 75 S-2 walk-behind roller
- Protects Engine Longevity — a worn or failed wrist pin causes excessive piston slap, accelerated bore wear, and can lead to catastrophic engine failure; replacing it promptly with an OEM-spec pin restores normal operation
- Genuine Bomag OEM Part — part number 05821221 is an authentic Bomag component, ensuring consistent quality and traceability across the engine service life
The floating wrist pin — also called a piston pin — connects the piston to the small end of the connecting rod, transferring combustion force into rotational motion at the crankshaft. Unlike a fixed pin, a floating wrist pin is free to rotate within both the piston bore and the connecting rod bushing, distributing wear evenly across its surface for extended service life. When a wrist pin wears beyond tolerance, it produces a characteristic knocking noise under load and allows increased piston movement that degrades compression and accelerates internal engine damage.
Part Details
| Part Number | 05821221 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Floating Wrist Pin |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Reversible Vibratory Plate | BPR 65/52 D-3 | 00817442, 00817443 |
| Walk-Behind / Light Roller | BW 75 S-2 | 00817565, 00817971, 00818077, 00818781, 00811409 |
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.
