331M Blue Run-Dry Impeller | Globe 01-12-1290

Globe 331M Run-Dry Impeller | 01-12-1290 | Brandonite | Pin Drive | Jabsco Yanmar Westerbeke

The Globe #01-12-1290 is the 331M Blue run-dry impeller manufactured from Globe's Brandonite compound — a high-strength, self-lubricating elastomeric material engineered to outperform standard rubber, nitrile, and neoprene impellers in marine raw water pump applications. Unlike standard flexible impellers that fail within seconds of running dry, Globe Brandonite impellers are guaranteed to run dry for 15 minutes without damage, making them the correct choice for applications where dry priming is common or where a run-dry event could cause serious pump damage. Delivers up to 3x the service life of standard rubber impellers. Does NOT include gaskets or O-rings — order separately.

Part Details:

• Part Number: 01-12-1290 (Globe)
• Impeller Designation: 331M Blue
• Manufacturer: Globe
• Type: Run-Dry Flexible Impeller — Brandonite Compound
• Drive Type: Pin drive
• Core: Brass
• Blades: 6
• Outer Diameter: 2 in. / 51 mm
• Width: 7/8 in. / 22 mm
• Shaft Diameter: 0.47 in. / 12 mm
• Silhouette: C
• Liquid: Water (raw water cooling)
• Does NOT include gaskets or O-rings
• Condition: New

Cross-Reference — Replaces:

• Jabsco: 653-0001, 18653-0001, 29440-1051, 29470-1231
• Johnson Pump: 09-810B
• Kubota: BZ482/BD722/BD1005 — 29460-1401
• Mitsubishi: K2C, K3M, K3E, K4E
• Vetus: 00801
• Westerbeke: 34440
• Yanmar: 128990-42200, 2GM20F-YEU, 2YM15, 2YM20, 3GM30F-YEU, 3YM30

Additional Information

Brandonite Run-Dry Technology — Why It Matters:

Standard flexible impellers — rubber, nitrile, neoprene — rely on raw water for lubrication. Running dry for even 15–30 seconds causes friction heat that melts vane tips, bonds vanes to the pump housing, and in severe cases fuses the impeller into a solid mass that locks the pump. Globe's Brandonite compound is self-lubricating — the material itself provides the lubrication needed between the impeller vanes and pump housing wall, eliminating the dependency on water for lubrication. Key advantages:

• 15-minute guaranteed run-dry rating — the impeller survives dry operation for up to 15 minutes without damage; standard impellers fail in under 30 seconds dry
• Up to 3x service life — Brandonite's material durability extends the replacement interval significantly compared to equivalent rubber or neoprene impellers under normal wet operation
• Self-lubricating compound — reduces vane-to-housing friction under all operating conditions, not just dry-run events
• Consistent performance after dry-run events — a Brandonite impeller that has experienced a dry-run event can be inspected and returned to service if undamaged; a standard impeller that ran dry must always be replaced immediately

When to Specify a Run-Dry Impeller:

Globe Brandonite impellers are the correct specification choice in applications where:

• The pump may prime dry on initial startup (common in seasonally laid-up vessels or after raw water system service)
• The pump is used in a live-well, washdown, or bilge application where running dry is a normal operating condition
• The vessel is used in shallow water or areas with high debris load where momentary raw water supply interruption is possible
• A previous standard impeller failure was caused by dry running, and the root cause (air in the system, intermittent raw water supply) cannot be fully eliminated

For other Johnson Pump impeller kits that fit related raw water pump applications, also see:

• Johnson Pump JP-09-707B-1 (15000K) — MC97, keyed shaft, Cummins 4B/6B/QSD and MerCruiser 7.3L/4.2L QSD diesel
• Johnson Pump 09-821BT-1 (F75) — M97, Hino, M.A.N., Volvo Penta, Yanmar
• Johnson Pump 09-1027B-10 (F5) — MC97, spline drive, replaces Volvo Penta 21951348

Frequently Asked Questions

1. Does this impeller include gaskets and O-rings?
No — the Globe 01-12-1290 is an impeller only and does not include gaskets or O-rings. Order the appropriate gasket and O-ring set for your pump separately. Do not reuse the old gasket and O-ring when reinstalling the pump cover.

2. How do I confirm this impeller fits my pump?
Cross-reference part #01-12-1290 — or any of the OEM numbers it replaces — against your pump's parts diagram. Verify drive type (pin drive), outer diameter (2 in. / 51 mm), width (7/8 in. / 22 mm), shaft diameter (12 mm), and blade count (6). For Jabsco, Yanmar, Westerbeke, Vetus, Kubota, or Mitsubishi applications, cross-reference against the OEM number in the list above. Contact us at MacombMarineParts.com with your pump model if you need fitment confirmation.

3. Can a Brandonite impeller be returned to service after a dry-run event?
Yes — a Globe Brandonite impeller that has experienced a dry-run event within its 15-minute rating should be inspected for vane deformation, cracking, or hub separation. If the impeller passes visual inspection and the vanes return to their original shape, it can be returned to service. This is a significant advantage over standard rubber impellers, which must always be replaced after any dry-run event regardless of apparent condition.

4. What is the "silhouette C" designation?
Globe uses a silhouette letter system to classify impeller profiles for pump housing compatibility. Silhouette C indicates the impeller's blade geometry and curvature profile — it is used to cross-reference impeller fit across different pump brands that use the same pump housing geometry. When ordering a replacement for a Jabsco, Yanmar, or other branded pump, confirm the silhouette letter matches your pump housing specification.