Garrett To4Z Ball Bearing Turbo T4 Divided 1.15 AR with 3

Garrett To4Z Ball Bearing Turbo T4 Divided 1.15 AR with 3" V-Band Outlet

Marsoni

M251S

$794.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Garrett To4Z Ball Bearing Turbo T4 Divided 1.15 AR with 3" V-Band OutletDual Ball Bearing Garrett T4Z. 700 750HP potential flow. Compressor wheel diameter is 84mm exd. 66. 7mm ind. (63trim) Compressor housing is . 70 A R has a 4" inlet and 2. 5" outlet slip on connection. TURBINE HOUSING OPTIONS: Divided T4 Housing with standard 3" V Band Outlet: 1. 15 A R Polished Housing (add $75) TURBINE SPECIFICATIONS: Wheel: 74. 2mm w 76 trim COMPRESSOR SPECIFICATIONS Wheel: 84. 0mm exd. 66. 7mm ind w 63 trim Housing: 0. 70 A R

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I have been boating my whole life, this is by far the best gear oil. I use this in my Johnson 115 even though this is technically made by Mercury. I seem to get less if any water intrusion into my gearcase with this oil. If there is any, the oil emulsifies the water and continues to protect the gears. I have had better luck with this than Pennzoil marine or others. Highly recommend. It is a blue color and easy to drain and fill.

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Reviewed in the United States on March 23, 2026

Verified Purchase

Debra

Bozeman, US

★★★★★ 5

Great

Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube

Great lube for the boat

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Reviewed in the United States on May 19, 2026

Verified Purchase

Joshua Murray

Battle Creek, US

★★★★★ 5

recommend

Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube

great price

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Reviewed in the United States on May 22, 2026

Verified Purchase

Christopher C.

Houston, US

★★★★★ 4

Does not come with a pump.

Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube

The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself. The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that. The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)

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Reviewed in the United States on October 28, 2025