L129 Series

The L129 Series Lube Level Swichgage instrument is a combination lube level indicating gage and adjustable low and high limit switches.

It provides protection against low oil level or high level caused by overfill or fuel or water seepage into the crankcase. A 6-3/4 inch (171 mm) deep sight gage allows you to check the condition and level of your oil without shutting down the equipment. Fingertip adjustable limit contacts, through 4-7/8 inch (122 mm) range, make it simple to set high and low limit contacts. When properly installed and maintained, the L129 Series Lube Level Swichgage can monitor and protect engines and pumps from improper lubrication level, which can result in extensive damage. The L129 Series is recommended for engines and pumps with larger crankcase capacity. Although designed primarily for stationary engines, the L129 Series is often used in mobile applications such as marine, rail and some large off-highway trucks.

Specifications Downloads How To Order
  • Case: Die-cast aluminum
  • Lens: Tempered glass
  • Maximum Working Pressure: 10 psi (68.9 kPa)
  • Process Connection: 1/2 NPT
  • Float Material: Brass
  • Contact Rating: 2 A @ 30 VAC/DC, pilot duty
  • Shipping Weight:
    • L129: 3 lb. (1.4 kg)
    • L129CK1: 3 lb. 9 oz. (1.6 kg)
  • Shipping Dimensions (both models): 12 x 4-1/2 x 4-3/4 in. (305 x 114 x 121 mm)

 WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information about California Propsition 65, go to www.P65Warnings.ca.gov or visit our California Proposition 65 page.

Additional product documentation can be found on our product support website or by clicking the Help Center button above.

Part Number Model Description
15700104 L129 Designed for grounded, low voltage electrical systems
15700107 L129CK1 Designed for applications requiring a three-wire, above ground electrical circuit
15000888 Repair Kit Full repair kit for L129 (less castings and glass assembly) for date code T2 and later
15000480 Lens & Bezel Kit Bezel, glass and gasket set for date code W7 and later
15000485 Lens Kit Glass and gasket set for all date codes
15050241 Restrictor Plug Restrictor plug for all date codes

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