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LDI INDUSTRIES Vented Oil Gauges: 5.67 in Body Ht, 4 1/4 in Sight Ht, 1/4" NPTF Male - Vented Oil Level Gauges
LDI INDUSTRIESVented Oil Level Gauges

LDI INDUSTRIES Vented Oil Gauges: 5.67 in Body Ht, 4 1/4 in Sight Ht, 1/4" NPTF Male

The LDI INDUSTRIES Vented Oil Gauge (MPN G657-2) is a vented oil level gauge with a 5.67 in body height and 4 1/4 in sight height, featuring a 1/4" NPTF male connection. It is compatible with the G650 Series, has a…

SKU 3G-OTH-592815

Brand
LDI INDUSTRIES
Item
Vented Oil Gauges: 5.67 in Body Ht, 4 1/4 in Sight Ht, 1/4" NPTF Male
Category
Vented Oil Level Gauges
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Technical Specifications

LDI INDUSTRIES
Manufacturer Part Number
G657-2
Sight Ht
4 1/4 in
NPTF Male
1/4"
Seal Material
Buna N
Max. Temp Rating
250°F
Includes Thermometer
No Thermometer Included
Compatible with Series
G650 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 Gauge (MPN G657-2) is a vented oil level gauge with a 5.67 in body height and 4 1/4 in sight height, featuring a 1/4" NPTF male connection. It is compatible with the G650 Series, has a Buna N seal, and a maximum temperature rating of 250°F, with no thermometer included.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a vented oil gauge used for?

A vented oil gauge provides a clear visual indication of oil level in gearboxes, compressors, and hydraulic reservoirs. The vent allows pressure equalization, preventing seal damage. LDI INDUSTRIES G657-2 is a common replacement for G650 Series applications requiring a 1/4" NPTF male connection.

What are the specifications of the LDI INDUSTRIES G657-2 vented oil gauge?

The G657-2 has a 5.67 in body height, 4 1/4 in sight height, 1/4" NPTF male connection, Buna N seal, and 250°F max temperature rating. It is compatible with the G650 Series and does not include a thermometer. 3G Electric supplies this LDI INDUSTRIES gauge globally.

Where to buy LDI INDUSTRIES G657-2 vented oil gauge worldwide?

3G Electric sources and delivers the LDI INDUSTRIES G657-2 vented oil gauge to worldwide locations. We handle full logistics and customs clearance as a global industrial supplier. Contact us for lead time and pricing on this G650 Series compatible gauge.

How to install a vented oil gauge like the G657-2?

Install the LDI INDUSTRIES G657-2 by applying thread sealant to the 1/4" NPTF male connection and hand-tightening into the reservoir port. Do not overtighten. Ensure the vent is unobstructed. The Buna N seal is suitable for petroleum-based oils up to 250°F. 3G Electric provides sourcing support.

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: 5.92 in Body Ht, 4 1/4 in Sight Ht, 1/2" NPTF Male, 250°F Max. Temp Rating (MPN G901-4). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G900 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
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Vented Oil Gauges: 9.44 in Body Ht, 7 1/2 in Sight Ht, 1/2" NPTF Male, 250°F Max. Temp Rating (MPN G323-4). 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: 9.44 in Body Ht, 7 1/2 in Sight Ht, 1/2" NPTF Male, 250°F Max. Temp Rating (MPN G323-4). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G320 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
Vented Oil Gauges: 5.98 in Body Ht, 4 1/4 in Sight Ht, 3/8" NPTF Male, 250°F Max. Temp Rating (MPN G307-3). 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, 3/8" NPTF Male, 250°F Max. Temp Rating (MPN G307-3). 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 1/4 in Sight Ht, 1/4" NPTF Female, 250°F Max. Temp Rating (MPN G404-2). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G400 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, 3/8" NPTF Male, 250°F Max. Temp Rating (MPN G261-3). 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: 5.92 in Body Ht, 4 1/4 in Sight Ht, 3/8" NPTF Male, 250°F Max. Temp Rating (MPN G261-3). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G260 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
Vented Oil Gauges: 6.23 in Body Ht, 4 1/4 in Sight Ht, 3/8" NPTF Female, 250°F Max. Temp Rating (MPN G421-3). Key specifications — Brand: LDI INDUSTRIES; Compatible with Series: G400 Series; Includes Thermometer: No Thermometer Included; Seal Material: Buna N.
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