OTR oil cooler Yamaha XT-660 R/X, red
€189.95
Available, delivery time: 1-3 days
OTR oil cooler Yamaha XT-660 R/X, red
Machine milled Oil Coller Yamaha XT660R - XT-660X
Like many other single-cylinder engines, Yamaha's large water cooled 1-cylinder engines such as the XT-660 models tend to have very high oil temperatures. Especially in summer or off-road use, the critical level of around 100° C is quickly exceeded.
Our solid block machined oil coolers help to prevent this.
The uprated design, optimised during production (inner part rotated 45° to the outer edge), results in an ideal air flow to effectively dissipate any temperature peaks that may occur. This relieves all thermally stressed components such as the outlet valves, outlet valve seats and crankshaft bearings.
The fittings from the oil cooler for the oil line are at the rear of the bike, so that even in off-road conditions, the fittings are protected from tree branches, stones, etc.. An alternative installation with a bottom outlet is possible. Connection to the engine is easily made in the secondary oil circuit.
Supplied complete with stainless steel braided oil pressure hose and laser cut stainless steel fittings.
Details:
- OTR Billet Oil Cooler Kit
- Aircraft grade 7075 T6 aluminium
- Machined anodised aluminium oil cooler
- Laser-cut mounting brackets
- Nearly indestructible
- Includes detailed instructions and all necessary mounting hardware (bolts, brackets, oil hose).
- Made in Germany by OFF-THE-ROAD
- 10 year warranty on cooler block!
Fits all:
- Yamaha XT-660X 2004 - 2016
- Yamaha XT-660R 2004 - 2016
OFF-THE-ROAD - OTR-Performance GmbH
Hugo-Junkers-Str. 52-54
50739 Köln, Deutschland
info@off-the-road.de
ZUBEHÖR
Available, delivery time: 1-3 days
Connection pipe (made o brass) for oil hose with 9mm inner diameter. For mounting the oil cooler to non listet bikes. Price per piece
Available, delivery time: 1-3 days
Fitting stainless steel hose clamps for e.g. the oil thermostat of the oil cooler. For the oil thermostats you need four pieces. Price per piece
Ready to ship as of 16 August 2025
High quality manufactured oil bypass valves (thermostats) from JAGG. An oil thermostat in combination with an efficient oil cooler has immense advantages that lead to an enormous increase in the service life of your engine. The oil flow to the oil cooler is automatically regulated according to temperature. At about 85°C the thermostat starts to regulate from 'Closed' to 'Pass'. From approx. 90°C the complete cross-section to the oil cooler is released. Installation in the two oil lines to and from the oil cooler. The automatic oil cooler bypass works like a remotely controlled thermostat and directs the oil past the cooler until it has reached operating temperature. Ideal for automatically adjusting the cooling effect of an oil cooler on air-cooled single-cylinder engines. Dimensions only approx. 38×38×19mm (without connection pipe). Connections 3/8" ~9.5mm Suitable for all OTR oil cooler kits and individual applications