Description
Overview:
This Cushion Plate is a genuine Makita replacement part designed for rotary hammers and demolition hammers. Made from a tough elastomer (black), it sits within the hammer mechanism to absorb impact and isolate vibration, helping to protect gears, pistons, and seals from premature wear. It supports smooth, controlled hammering and improves user comfort during prolonged use. Suitable for heavy-duty tools such as the Makita HR5211C and HM0870C, it is precision-made for reliable seating and consistent performance. Supplied as Manufacturer Part Number (MPN) 423345-3, this part helps restore original tool performance after the original damper has hardened, cracked, or flattened through use. As a Genuine Makita Part, it offers the correct fit and material grade for long service life and dependable operation.
Key Features:
- Genuine Makita part (MPN 423345-3) for assured fit and performance
- Durable elastomer construction to absorb shocks and reduce vibration
- Protects internal components, helping extend tool lifespan
- Helps maintain smooth hammer action and consistent impact energy
- Precision moulding for correct alignment and sealing within the mechanism
- Straightforward to fit as part of routine service with standard hand tools
- Stable performance under heavy-duty, high-frequency hammering
- Supports operator comfort by minimising transmitted vibration
Typical Applications:
Ideal for routine maintenance or repair of Makita rotary and demolition hammers. Replace when vibration increases, the tool sounds harsher, or the original cushion shows cracking, hardening, or deformation. Commonly fitted during a hammer mechanism overhaul to restore smooth operation and protect pistons, strikers, and bearings.
Also known as:
Buffer plate, shock absorber plate, vibration damper, isolation pad, damper plate, bumper, impact cushion, hammer cushion.
Fits Models:
HM0870C
HM1101C
HM1111C
HMJ1110
HR4001C
HR4011C
HR4511C
HR5211C
Product Specifications
| L&S Part No. | 423345-3 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 423345-3 |
| Unit of Sale | 1 |
| Applications | HM0870C, HM1101C, HM1111C, HMJ1110, HR4001C, HR4011C, HR4511C, HR5211C |
| Machine Type | Rotary Hammer |
| Fits Brands | Makita |
| Fits Models | HM0870C | HM1101C | HM1111C | HR4001C | HR4011C | HR4511C |
