Description
Overview:
The Insulation Cover 421904-7 is a Genuine Makita part for the JR3070CT reciprocating saw. It is a moulded, heat‐resistant cover that sits over the saw's front housing to limit heat transfer and protect nearby components from heat and debris. Made from durable insulating material, it helps preserve wiring, seals, and the gear housing, while keeping the handle area more comfortable during prolonged cutting. Purpose-built for the Makita JR3070CT, it ensures a precise fit and reliable performance with the saw's anti‐vibration and drive assemblies. Straightforward to replace as part of routine maintenance, this cover supports safe, efficient operation and helps extend the tool's service life in site, workshop, and hire fleet use.
Key Features:
- Genuine Makita part (MPN 421904-7) for assured compatibility with the JR3070CT
- Heat‐insulating construction reduces heat transfer from the gear housing to the user and adjacent components
- Helps shield internal parts from dust and debris, supporting long-term reliability
- Durable material designed to resist wear and provide consistent insulation over time
- Accurate OEM fitment for stable seating and proper clearances
- Easy to install during routine servicing; replaces worn or damaged covers without modification
- Supports smooth operation and helps maintain the saw's performance and lifespan
- Suitable for demanding on-site work where frequent, extended cuts generate heat
Typical Applications:
Replacement and maintenance of the front housing insulation on JR3070CT reciprocating saws used for demolition, renovation, plumbing cut-outs, metal cutting, and timber work. Ideal when the original cover has hardened, split, or no longer insulates effectively. Helps restore thermal protection and comfort during prolonged cutting in construction, facilities maintenance, and tool hire environments.
Also known as:
Insulation boot, rubber boot, front boot, nose cover, housing cover, gear housing sleeve, heat shield, protective sleeve, saw body cover.
Fits Models:
JR3070CT
Alternate Part Numbers:
4219047
Product Specifications
| L&S Part No. | 421904-7 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 421904-7 |
| Unit of Sale | 1 |
| Applications | JR3070CT |
| Machine Type | Reciprocating Saw |
| Fits Brands | Makita |
| Fits Models | JR3070CT |
