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Transmission Oil

PanAm Oil SAE 85W-90
PanAm Oil SAE 85W-90
This lubricant is recommended for Sportsters, where transmission and primary drive share one lubricant. This high performance lubricant complies with API GL-4.
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PanAm Oil SAE 80W-90
PanAm Oil SAE 80W-90
Our lubricant for Big Twin transmissions. This high performance lubricant complies with API GL-4.
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PanAm Full-Synth Oil SAE 20W-50
PanAm Full-Synth Oil SAE 20W-50
Our premium multigrade engine lubricant. 100% synthetic. For unrestricted usage in engine, wet clutches, primary drives and transmissions. Better engine protection, more positive clutch action and smoother shifting. Less friction and reduced wear. This high performance lubricant complies with API SL.
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Bel-Ray GS Oil SAE 85W
Bel-Ray GS Oil SAE 85W
A premium petroleum transmission and gear oil which is specifically formulated for all separately lubricated motorcycle clutches and transmissions. It offers superior gear wear protection, clutch performance and viscosity stability.
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Bel-Ray GS Hypoid Oil SAE 85W-140
Bel-Ray GS Hypoid Oil SAE 85W-140
Specially formulated for separately lubricated transmisssions. Soft and silent shifting action by EP additives.
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PanAm Oil Slide
PanAm Oil Slide
Oil change without a mess! This rubberized aluminum alloy sheet allows you to form an individual funnel or trough to direct your waste oil from the hard-to-reach oil tank drain hole or oil filter plate to any suitable container. Of course, you can also use it to fill fresh oil into your tank. Tapered at one end so it can be shaped to reach tight spots. You can reshape and use it a thousand times and on different bikes. With suspension eye so you can hang it up for drip-off. Easy to clean.
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PanAm Oil Pads
PanAm Oil Pads
This oil pad soaks up to 2 l of fluid, i.e. oil, gas, etc. A reinforced top and an anti-slip foil on the bottom side make the PanAm oil pad a useful helper in the workshop, garage or living room.
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PanAm Clean-Funnel
PanAm Clean-Funnel
A good funnel is a must have in any workshop when it’s time for an oil change or a refill. The annoying part of these jobs was to stow away the oil dripping funnel into a dark corner where you would find it a few months later contaminated inside-outside with dust, bugs and other debris. The PanAm funnel puts an end to this problem because it features screw-on caps at the top and bottom which can be removed for action and which keep the inside of your funnel perfectly clean during storage. The flexible spout makes it more versatile as it allows to direct the funnel tip in tight spots.
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Transmission lubricants

Gearboxes of classic Harley-Davidson motorcycles have their own oil filling. In this context, classic means everything except V-Rod, Street or anything else with the name Revolution, Revolution X or Max. Until the end of the 1970s, engine oil was filled into the gearbox, the same monograde oil as in the oil tank. This is why we also list engine oil under transmission oil. For later models from this time onwards, special transmission oil with specifications designed for the intended use was filled in. Aftermarket gearboxes usually require multigrade gear oil, recognizable by the two numbers before and after the W, e.g. 80W90 or 85W140.

The PanAm and Bel-Ray oils we offer are quality oils carefully matched to their intended use.

When do I need to change the transmission oil in my Harley?

And how often? The intervals are best looked up in the manual, the filling quantities can also be found under the following link to our Tech Tips.

And of course, you should change the transmission oil after a repair. You don't fill it with the same old stuff.

Which transmission oil should I fill in my Harley-Davidson? Once again briefly summarized: until 1978 the factory recommends monograde engine oil, after that transmission oil. Baker recommends 85W140 for its transmissions. Our fully synthetic PanAm Full-Synth oil can replace all of these oils.

Have any questions?

Our service team will be glad to help out: Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: service@wwag.com