Easy
15-30 minutes
This is an authentic slight glass which includes the sealing o-ring gasket. It is a high quality item that is sourced directly from original equipment manufacturer for use with Makita air compressors. It allows user to check the oil level of the unit. Please note one durable clear plastic sight gauge is included per order.
Oil Sight Gauge 321001-E
OEM part for: Makita
Part Number: 321001-E
$15.93
In Stock
Ships within 1 business day 
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Frequently Purchased Together ?
Compatibility
This part will fit the following 4 machines
Makita
MAC5200 Air Compressor View Diagrams & Manuals
MAC700 Air Compressor View Diagrams & Manuals
MAC2400 2.5HP 1720RPM Air Compressor View Diagrams & Manuals
MAC700K1 Compressor View Diagrams & Manuals
This item works with the following types of products:
- Compressor Parts
Customer Part Reviews ?
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Right parts, right time.
I'm happy, as always.
Duke -
July 12, 2023
Verified Purchase
Great Part and fast shipping
The part was exactly what I needed. Great quality and quick shipping.
John -
April 26, 2023
Verified Purchase
Worked just fine
Put it in and filled it with oil.
Guest -
June 25, 2021
Verified Purchase
Easy replacement
Part sent was equipment manufacturer's original replacement. Great buying experience. Will definitely keep doing business with this company.
Guest -
August 7, 2019
Verified Purchase
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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.
I had tightened the oil drain plug to mucj,so had to replace crankcase cover to stop leakage beacuse of crack made.
Erik - March 18, 2019
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set, Alen wrench
Dumped oil,removed cracked crankcase cover gasket.replaced with new items,assembled with regular force ,not excessive force. Pleaced all bolts at same time,sealed crankcase,added oil. Good to go.
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Oil sight glass on compressor was leaking through a small crack
Jarrett - July 28, 2018
Tool Type
Compressor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Adjustable Wrench, Oil pan, funnel, and clean up rags
Parts Used
1. Drain oil from compressor
2. Removed old oil sight glass
3. Install new sight glass
4. Refill with oil to proper level as marked on the sight glass
5. Clean up an spills
2. Removed old oil sight glass
3. Install new sight glass
4. Refill with oil to proper level as marked on the sight glass
5. Clean up an spills
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Crankcase cover cracked by oil drain plug
Bob - June 1, 2018
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Nutdriver
Replaced Crankcase cover, oil sight glass and gasket.
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Oil leaked around drain plug after oil change
tom - May 18, 2018
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Wrench Set, Allen wrench
Installed new parts. used loctite thread seal on the plug
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
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