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⚙️ Power your ride-on mower with the oil that means business—because your lawn deserves the best!
TRIAX Trans Zero 20W-50 is a premium full synthetic hydrostatic transmission oil designed for zero-turn and ride-on mowers and tractors. Engineered with commercial-grade additives and a -50°C pour point, it ensures reliable, all-season performance while protecting gears with high zinc content. Compatible with leading OEMs, it offers superior wear protection, corrosion resistance, and smooth torque transfer, making it the go-to choice for professionals and serious lawn care enthusiasts.








| ASIN | B0C74Y4CK1 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | 72,070 in Garden ( See Top 100 in Garden ) 24 in Four-Stroke Engine Oil |
| Brand | TRIAX |
| Brand Name | TRIAX |
| Compatible with Vehicle Type | Lawn Mower |
| Container Type | Drum |
| Country Of Origin | USA |
| Customer Reviews | 4.8 out of 5 stars 1,204 Reviews |
| EU Spare Part Availability Duration | 2 Years |
| Included Components | TRIAX Trans Zero 20W-50 |
| Liquid Volume | 3.79 Litres |
| Liquid volume | 3.79 Litres |
| Manufacturer | TRIAX Lubricants LLC |
| Manufacturer Part Number | HYD20W50 |
| Model Number | HYD20W50 |
| Number of Packs | 1 |
| Package information | Drum |
| SAE J300 Viscosity Grade | 20W-50 |
| Size | 1 Gallon / 3.78 l |
| UPC | 850023978073 |
| Unit Count | 3785.4118 millilitre |
| Vehicle service type | Lawn Mower |
| Viscosity Level | Medium to High |
G**.
Oil for Tuff Torq
This oil meets the specification required and is half the price of some oils. The manufacturers speciality is speciality oils .
M**W
Special Oil for Mower
My husband searched everywhere for this product for his new ride-on mower. Just the ticket.
M**C
hydrostatic oil
excellent 5star product rapid delivery
J**A
Expensive BUT effective.
This product is almost double the price of your run of the mill transmission fluid but for our zero turn mower and compact tractor it's the best we've tried. Very efficient.
M**S
Very happy with items
Very happy with items
S**.
Fixed a failing Zero Turn hydro!
Fixed my failing hydro! I have changed the oil in my zero turn in the past, this year the left side was starting slip and hesitate a bit. Both sides wine. After changing with this, no more hesitation/slip, noise is gone. Stuff is great for your hydros! Also, if you heat the oil up, it will flow into your hydros easier/quicker.
L**A
Bra
Bra
K**Y
sehr gutes Hydrauliköl, Automatikgetriebe Husqvarna Aufsitzmäher läuft hervorragend
Automatikgetriebeöle sollten hochwertig sein und hier sollte man nicht mit jedem Cent sparen, ein neues Getriebe durch Anwendung von Billigöl ist dann viel teurer und vor allem gibt es solche neuen Getriebe 10 Jahre nach Kauf des Gerätes praktisch nicht mehr. Dann kann man z.B. einen Husqvarna-Aufsitzmäher für einstmaligen Neupreis von 11.000 EUR (!) in den Schrott werfen! Dieses Öl kann ich vorbehaltlos empfehlen.
W**Y
Boite hydrostatique
Bonne qualité
G**O
Optimo
Muy bueno
Trustpilot
2 weeks ago
2 weeks ago