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LDI INDUSTRIES Vented Oil Gauges: 4.17 in Body Ht, 2 1/4 in Sight Ht, 1/4" NPTF Female - Vented Oil Level Gauges
LDI INDUSTRIESVented Oil Level Gauges

LDI INDUSTRIES Vented Oil Gauges: 4.17 in Body Ht, 2 1/4 in Sight Ht, 1/4" NPTF Female

The LDI INDUSTRIES Vented Oil Level Gauge (SKU 1U593, MPN G404-2) is a G400 Series-compatible unit with a 4.17 in body height, 2 1/4 in sight height, and 1/4" NPTF female connection. It features a Buna N seal, a…

SKU 3G-OTH-592811

Brand
LDI INDUSTRIES
Item
Vented Oil Gauges: 4.17 in Body Ht, 2 1/4 in Sight Ht, 1/4" NPTF Female
Category
Vented Oil Level Gauges
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Technical Specifications

LDI INDUSTRIES
Manufacturer Part Number
G404-2
Sight Ht
2 1/4 in
NPTF Female
1/4"
Seal Material
Buna N
Max. Temp Rating
250°F
Includes Thermometer
No Thermometer Included
Compatible with Series
G400 Series
View Full Spec Sheet

Technical Documents

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LDI INDUSTRIES Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LDI INDUSTRIES Vented Oil Level Gauge (SKU 1U593, MPN G404-2) is a G400 Series-compatible unit with a 4.17 in body height, 2 1/4 in sight height, and 1/4" NPTF female connection. It features a Buna N seal, a maximum temperature rating of 250°F, and does not include a thermometer.

Frequently Asked Questions

What is a vented oil level gauge used for?

A vented oil level gauge provides a visual indication of oil level in a reservoir or gearbox while allowing air to escape, preventing pressure buildup. It is commonly used in industrial machinery, pumps, and hydraulic systems to monitor lubricant levels and ensure reliable operation.

What are the specifications of the LDI INDUSTRIES G404-2 vented oil gauge?

The LDI INDUSTRIES G404-2 vented oil gauge has a 4.17 in body height, 2 1/4 in sight height, and a 1/4" NPTF female connection. It uses a Buna N seal, has a maximum temperature rating of 250°F, and does not include a thermometer. It is compatible with the G400 Series.

Where to buy LDI INDUSTRIES G404-2 vented oil gauge worldwide?

3G Electric supplies the LDI INDUSTRIES G404-2 vented oil gauge to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this G400 Series-compatible gauge.

How to install a vented oil level gauge?

Install the vented oil gauge into a 1/4" NPTF female port on the reservoir. Apply thread sealant to the male threads, hand-tighten, then use a wrench to snug the gauge without overtightening. Ensure the vent hole is unobstructed and the Buna N seal is properly seated to prevent leaks.

Used in

Common applications for LDI INDUSTRIES
Hydraulic power units — LDI Industries pump motor adapters (e.g., MPN 6028) connect electric motors to hydraulic pumps in industrial machinery.
Mobile equipment — LDI Industries SAE B 4-bolt adapters (e.g., MPN 1952) used in construction vehicle hydraulic systems.
Gas engine-driven pumps — LDI Industries gas engine/pump adapter (MPN 6019) interfaces PEM-G flange engines with SAE A pumps.
Hydraulic tank fabrication — LDI Industries steel return flanges (e.g., MPN 5111) welded onto reservoirs for fluid return ports.
Maintenance replacement — LDI Industries pump motor adapters (e.g., MPN 1960) replace worn or incompatible adapters in existing hydraulic systems.
Industrial automation — LDI Industries adapters (e.g., MPN 1950) used in stationary hydraulic presses and material handling equipment.

LDI INDUSTRIES Products

3G Electric supplies LDI INDUSTRIES vented oil level gauges. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Vented Oil Gauges: 6.19 in Body Ht, 4 1/4 in Sight Ht, 1/2" NPTF Male, 250°F Max. Temp Rating (MPN G321-4). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G320 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
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Vented Oil Gauges: 5.98 in Body Ht, 4 1/4 in Sight Ht, 1/4" NPTF Male, 250°F Max. Temp Rating (MPN G307-2). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G300 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
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Vented Oil Gauges: 5.98 in Body Ht, 4 1/4 in Sight Ht, 1/4" NPTF Male, 250°F Max. Temp Rating (MPN G307-2). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G300 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
Vented Oil Gauges: 4.17 in Body Ht, 2 3/4 in Sight Ht, 1/4" NPTF Male, 250°F Max. Temp Rating (MPN G655-2). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G650 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
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Vented Oil Gauges: 5.92 in Body Ht, 4 1/4 in Sight Ht, 1/2" NPTF Male, 250°F Max. Temp Rating (MPN G261-4). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G260 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
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Vented Oil Gauges: 5.67 in Body Ht, 4 1/4 in Sight Ht, 1/4" NPTF Male, 250°F Max. Temp Rating (MPN G657-2). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G650 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
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