125 Blue Run-Dry Impeller | Globe 01-12-1180

Globe 125 Blue Run-Dry Impeller | 01-12-1180 | Brandonite | 12-Pt Spline | Cummins Detroit Diesel Caterpillar

The Globe #01-12-1180 is the 125 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 125 Blue is Globe's large-format, 9-blade, 12-point spline impeller with a 3-3/4" OD — designed for the high raw water flow demands of Cummins, Detroit Diesel, Caterpillar, Perkins, and Volvo Penta commercial marine diesel engines, as well as a wide range of Jabsco pump models. Includes matching gaskets and/or O-rings. Delivers up to 3x the service life of standard rubber, nitrile, or neoprene impellers. Water applications only.

Part Details:

• Part Number: 01-12-1180 (Globe)
• SKU: GLOBE-01-12-1180
• Impeller Designation: 125 Blue
• Manufacturer: Globe
• Type: Run-Dry Flexible Impeller — Brandonite Compound
• Drive Type: 12-point spline
• Core: Composite
• Blades: 9
• Outer Diameter: 3-3/4 in. / 95 mm
• Width: 2-1/2 in. / 63 mm
• Shaft Diameter: 1 in. / 25 mm
• Silhouette: O
• Liquid: Water only
• Includes matching gaskets and/or O-rings
• Condition: New

Cross-Reference — Replaces:

• Ancor: J050005
• Caterpillar: 1L4774
• CEF: 500105
• Cummins: 160596, 166758, 556540, 556850, 21601R
• Detroit Diesel: 5193553
• Jabsco: 1065-0001, 1096-0001, 12222-0001, 18018-0001, 18018-0005, 18019-0001, 18021-0001, 31200-0051, 31280-0051, 331-0001, 790-0001, 807-0001, 836-0001
• Johnson Pump: 08-1029B1, 09-1029B-1
• Oberdorfer: 7054, C7054
• Perkins: 460027
• Sierra Marine: 18-3078
• Volvo Penta: 807904, 825942, 875660, 875736, 876602, 21430184

Additional Information

125 Blue in Context — Globe's Largest Standard Marine Impeller:

At 3-3/4" OD × 2-1/2" wide with a 1" shaft and 9 blades, the 125 Blue is the largest-displacement impeller in the Globe Blue Brandonite lineup. Its extensive cross-reference list — spanning Cummins (5 numbers), Detroit Diesel, Caterpillar, Perkins, Volvo Penta (6 numbers), and 13 Jabsco models — reflects how widely this pump housing geometry is used across commercial and recreational marine diesel platforms. The 125 Blue replaces Sierra Marine 18-3078, making it a direct aftermarket alternative for Sierra-supplied pump kits in the same applications.

Commercial Marine Diesel Applications:

The 125 Blue's cross-reference to Cummins, Detroit Diesel, and Caterpillar confirms this impeller serves heavy commercial marine diesel engines — workboats, large sportfish, commercial passenger vessels, and multi-engine recreational vessels with high-output diesel powerplants. Key considerations for commercial diesel impeller service:

• Service interval — most commercial diesel operators replace raw water impellers annually regardless of hours; inspect at each routine service and replace on any sign of vane wear, cracking, or deformation
• Missing vane debris — if vanes are broken or missing on removal, inspect and flush the entire downstream cooling circuit (heat exchanger, thermostat, exhaust elbow) before installing the replacement; broken vane fragments cause repeat overheating failures
• Downstream consequences of impeller failure — a failed raw water impeller on a commercial diesel can cause heat exchanger damage, head gasket failure, or engine shutdown; Brandonite's extended service life and dry-run tolerance reduce the probability of in-service failure

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 1111 Blue (01-12-1690) — 12-pt spline, 8-blade, 2-9/16" OD × 3" wide; replaces Caterpillar 3N5895, Jabsco 17018-0001-P; no gaskets
• Globe 100 Blue (01-12-1060) — 12-pt spline, 8-blade, 2-9/16" OD × 2" wide; replaces Caterpillar, Cummins, Ford Lehman, Jabsco, Volvo; includes gaskets
• Globe 110 Blue (01-12-1140) — 12-pt spline, 10-blade, high-flow applications
• Globe 331M (01-12-1290) — pin drive, 6-blade, 2" OD; replaces Jabsco, Yanmar, Westerbeke, Vetus
• Globe 6541 Blue (01-12-1830) — pin drive, 6-blade, 2" OD, 1/2" shaft; replaces Volvo Penta, MerCruiser, Jabsco, Sierra 18-3080

Frequently Asked Questions

1. How do I confirm this impeller fits my engine?
Cross-reference part #01-12-1180 — or any of the OEM numbers it replaces — against your engine's parts diagram. For Cummins, verify against your engine model and serial number. For Detroit Diesel, use 5193553. For Caterpillar, use 1L4774. For Jabsco pumps, use the Jabsco model number on the pump body to find the correct impeller part number. Contact us at MacombMarineParts.com with your engine model and serial number for fitment confirmation.

2. Does this impeller replace the Sierra 18-3078?
Yes — the Globe 01-12-1180 is a direct replacement for Sierra Marine 18-3078. Both serve the same pump applications; the Globe 125 Blue offers Brandonite run-dry technology as an upgrade over a standard Sierra impeller in the same applications.

3. This impeller replaces many Jabsco numbers — how do I know which one applies to my pump?
Jabsco makes multiple pump models that use the same impeller geometry. Find the Jabsco pump model number on your pump body or nameplate, look up the correct impeller part number in Jabsco's parts documentation for that model, then cross-reference to Globe 01-12-1180 to confirm. If your Jabsco impeller part number is in the list above, the 125 Blue is the correct replacement.

4. What are the consequences of raw water impeller failure on a commercial diesel?
A failed impeller on a commercial marine diesel stops raw water flow through the heat exchanger, causing rapid engine temperature rise. Consequences range from heat exchanger damage and thermostat failure to head gasket failure and engine shutdown in severe cases. In commercial service, an in-service impeller failure causes costly downtime. Brandonite's extended service life and 15-minute run-dry rating significantly reduce the probability of in-service failure compared to standard rubber impellers.