815 Blue Run-Dry Impeller | Globe 01-12-1540

Globe 815 Blue Run-Dry Impeller | 01-12-1540 | Brandonite | Single Flat | Onan Westerbeke Oberdorfer

The Globe #01-12-1540 is the 815 Blue run-dry impeller manufactured from Globe's Brandonite compound — a high-strength, self-lubricating elastomeric material guaranteed to run dry for 15 minutes without damage. The 815 Blue uses a single flat drive hub (D-bore) with 6 blades and covers Onan marine generator, Westerbeke, and Oberdorfer pump applications. Does NOT include gaskets or O-rings — order separately. Delivers up to 3x the service life of standard rubber, nitrile, or neoprene impellers. Water applications only.

Part Details:

• Part Number: 01-12-1540 (Globe)
• SKU: GLOBE-01-12-1540
• Impeller Designation: 815 Blue
• Manufacturer: Globe
• Type: Run-Dry Flexible Impeller — Brandonite Compound
• Drive Type: Single flat (D-bore)
• Blades: 6
• Outer Diameter: 2 in. / 51 mm
• Width: 7/8 in. / 22 mm
• Shaft Diameter: 1/2 in. / 12.7 mm
• Liquid: Water only
• Does NOT include gaskets or O-rings
• Condition: New

Cross-Reference — Replaces:

• Oberdorfer: B6593, 8514
• Onan: 132-0316
• Westerbeke: 17556, 200209, 295628

Additional Information

815 Blue vs. 025 Blue — Same OD, Different Shaft, Different Gasket Inclusion:

The 815 Blue and 025 Blue share the same outer diameter (2" / 51 mm) and width (7/8" / 22 mm) with the same single flat drive and 6 blades, but are NOT interchangeable:

• Globe 025 Blue (01-12-0965) — 5/16" (8 mm) shaft; replaces Jabsco 6303-0001, Johnson Pump 08-1026S, Raritan CH13; includes gaskets/O-rings — see the Globe 025 Blue (01-12-0965)
• Globe 815 Blue (01-12-1540) — 1/2" (12.7 mm) shaft; replaces Oberdorfer, Onan, Westerbeke; does NOT include gaskets/O-rings

Always confirm the correct impeller by shaft diameter and OEM cross-reference — do not substitute based on OD and blade count alone.

Onan Marine Generator Application:

The Onan 132-0316 cross-reference confirms the 815 Blue is used in Onan marine generator raw water cooling pump applications. Onan marine gensets use a dedicated raw water impeller pump as part of the generator cooling circuit, separate from the main engine cooling system. The raw water impeller on a marine generator is subject to the same dry-run risks as an engine cooling pump — particularly during generator startup after a period of lay-up, or if the raw water supply is interrupted. Globe Brandonite's 15-minute run-dry rating is a meaningful advantage in generator applications where dry priming on initial startup is common.

Brandonite Run-Dry Technology:

• 15-minute guaranteed run-dry rating — standard impellers fail in under 30 seconds dry
• Up to 3x service life vs. rubber/nitrile/neoprene under normal wet operation
• Post-dry-run serviceability — inspect after a dry-run event; if undamaged, can return to service without mandatory replacement

For other Globe Brandonite run-dry impellers, also see:

• Globe 331M (01-12-1290) — pin drive, 6-blade, 2" OD, 12mm shaft; replaces Jabsco, Yanmar, Westerbeke, Vetus
• Globe 100 Blue (01-12-1060) — 12-pt spline, 8-blade, 2-9/16" OD; replaces Caterpillar, Cummins, Jabsco, Volvo
• Globe 6541 Blue (01-12-1830) — pin drive, 6-blade, 2" OD, 1/2" shaft; replaces Volvo Penta, MerCruiser, Jabsco, Sierra 18-3080
• Globe 025 Blue (01-12-0965) — single flat, 6-blade, 2" OD, 5/16" shaft; replaces Jabsco, Raritan CH13
• Globe 418 Blue (01-12-1300) — keyed shaft, large-format diesel applications
• Globe 110 Blue (01-12-1140) — 12-pt spline, 10-blade, high-flow applications
• Globe 1014 Blue (01-12-1600) — single flat, 6-blade; confirm fitment by OEM cross-reference

Frequently Asked Questions

1. Does this impeller include gaskets and O-rings?
No — the Globe 01-12-1540 does not include gaskets or O-rings. Order the appropriate gasket and O-ring set for your pump separately. This is different from the Globe 025 Blue (01-12-0965), which includes gaskets/O-rings with the same OD and width.

2. How do I confirm this impeller fits my Onan generator or Westerbeke engine?
Cross-reference against the OEM numbers above: Onan 132-0316, or Westerbeke 17556, 200209, or 295628. Verify the shaft diameter (1/2 in.) and drive type (single flat) match your pump specification. Contact us at MacombMarineParts.com with your Onan or Westerbeke model and serial number if you need fitment confirmation before ordering.

3. How often should I replace the raw water impeller on an Onan marine generator?
Onan recommends annual raw water impeller inspection and replacement per the genset's service manual. As a general guideline for marine generators, annual replacement is appropriate regardless of hours — impellers degrade from age, heat cycling, and compression set even during lay-up periods. Replace immediately any time the generator shows elevated temperature or reduced raw water flow from the exhaust, regardless of hours since last replacement.

4. What happens if I run my Onan marine generator dry?
A standard impeller will fail within seconds of dry operation, sending vane debris downstream through the cooling circuit. The Globe 815 Blue's 15-minute run-dry rating gives you a meaningful safety window — if the generator starts dry due to a priming issue or air-locked line, Brandonite allows time to identify and resolve the problem before impeller damage occurs. Inspect the impeller after any confirmed dry-run event before returning the generator to service.