Part Location Diagram of 421904-7 Makita Insulation Cover
See part 2 in the diagram
Replacing your Makita Saw Insulation Cover
( Grid squares measure 1x1 inch )

Insulation Cover 421904-7

Manufactured by:
Makita
ERP Number:
ERP10151243
Part Number:
421904-7
Original Equipment Manufacturer ?
$32.24
In Stock
Delivers in 3-5 Business Days!

A Bit Difficult 

15 - 30 mins 

(1 rated repair) ?

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Product Description

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This is an original Makita replacement part manufactured for use with reciprocating saws. The rubberized insulation cover provides a grip over the gear case. This insulation cover is available as an individual replacement part.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Makita
This part works with the following products:
  • Saw
  • Reciprocating Saw
Part# 421904-7 replaces these:
4219047,

Videos For installing this part.

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Replacing your Insulation Cover

Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

A Bit Difficult 

15 - 30 mins 

(1 rated repair) ?
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Sorry, we couldn't find any existing installation instruction that matched.

Broken crank cam pin and destroyed needle bearing

Terry from Longview, Texas

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Remove guide foot. Remove insulation cover(have fun I cut mine), remove top cover screws Phillips head with loctite. Remove cam. Reassemble in reverse order, I added a little grease prior to reassembly. Cam will need to be tapped down to insure proper seating. Insulation cover is difficult. Heat it in a pan of hot water and apply a small amount of dish soap to housing, then force it on.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP10151243
Manufacturer Part Number: 421904-7
Brand Model Number Description
Makita JR3070CT Reciprocating Saw - Reciprocating Saw
Makita JR3070CTZ Saw - Saw