Mercury – Quicksilver 8M0175742 V-Twin Primary Chaincase & Transmission Fluid | High-Performance Lubricant | Petroleum Synthetic Blend | 8M0175742

Overview

If you’ve spent enough time riding, you know your V-twin has a personality of its own — the thrum, the pull, the way it settles into a rhythm when everything’s working the way it should. A transmission that shifts smoothly isn’t just a convenience; it’s part of what makes the ride feel connected and controlled. With Quicksilver’s V-Twin Primary Chaincase and Transmission Fluid, you get that quiet reassurance every time you drop into gear. It’s the kind of confidence that lets you enjoy the road instead of thinking about what’s happening under the cover.

Key Features

• Formulated for primary chaincases and transmissions in high-performance V-twin motorcycles
• Designed for engines equipped with wet diaphragm spring clutches
• Shear-stable additive blend helps minimize wear and extend chain life
• Provides smooth shifting and consistent clutch engagement
• Protects against oxidation to maintain gear integrity
• Meets API GL-4 requirements
• Delivered in a 1-quart bottle for easy service intervals

Engine & Ride Compatibility

Ideal for:

• All major V-twin motorcycle models requiring GL-4 primary or transmission fluid
• V-twin platforms using a wet diaphragm clutch
• Touring bikes, cruisers, long-distance rigs, and performance-built V-twin machines
• Riders who push their motorcycles through heat, stop-and-go traffic, and long highway runs

Performance & Practical Benefits

You can feel the difference when your primary and transmission are properly lubricated. Shifting gets smoother — that crisp, clean engagement that tells you everything inside is running in harmony. Quicksilver’s formula holds its viscosity even when temperatures climb, so you’ll notice that steady, predictable feel whether you’re crawling through town or climbing into higher gears on open road.

The fluid’s wear protection is what really stands out. The chain stays coated, the gears stay cushioned, and the clutch engages without chatter or slip. It’s especially noticeable on older V-twins or bikes that see heavy loads. Even after long rides in hot weather, the shifting doesn’t get sloppy or inconsistent. That comes from oxidation resistance and the ability to stay stable under sheer pressure — something every rider appreciates when the miles start stacking up.

Installation is straightforward, too. Swap out the old fluid, refill to spec, and you’ll feel the improvement on the very next ride. It’s one of those simple maintenance steps that rewards you instantly.

Why Buy OEM

Choosing a fluid built specifically for V-twin primary and transmission systems gives you peace of mind — especially when it comes from a brand that understands how hard these engines work. Aftermarket blends vary widely in quality, but Quicksilver’s formula is engineered to meet or exceed manufacturer requirements. That means proper clutch feel, reliable gear engagement, and long-term protection you can trust.

Instead of chasing performance with generic fluids, you’re using something tailored to the exact demands of a V-twin drivetrain. It’s practical, cost-effective, and aligned with the way these motorcycles are designed to run.

FAQ

Q1: Which systems does this fluid service?

It’s designed for V-twin motorcycle primary chaincases and transmissions — especially those using wet diaphragm clutches.

Q2: What makes this different from aftermarket fluids?

It delivers stable viscosity, smoother shifting, and stronger anti-wear performance, while meeting manufacturer specifications.

Q3: How do I know if this is correct for my bike?

Check your owner’s manual for GL-4 compatibility. Most V-twin models that run wet diaphragm clutches use this specification.

Q4: Can it handle extreme temperatures?

Yes — it’s formulated to resist oxidation and maintain protection even in high-heat riding.

Q5: Is installation simple?

Very. Drain the old fluid, refill to your bike’s recommended level, and you’re done.