Mercury – Engine Oil Dipstick | V8 Series | Yellow-Handle Steel Assembly | 861942T9

Overview
There’s something reassuring about pulling an oil dipstick and knowing instantly where your engine stands. No guessing, no hoping—just a clear reading that keeps your day on the water moving smoothly. The Mercury Marine part number 861942T9 Oil Dipstick brings that kind of confidence to every pre-launch check and mid-season inspection. Whether you’re firing up a V8 after storage or easing back into the marina after a long run, this dipstick feels like one of those simple but essential tools you’re always glad to have working exactly the way it should.

Key Features

• Designed to measure engine oil level on select MerCruiser V8 engines

• Durable steel dipstick with a high-visibility yellow handle

• Factory-matched length and markings for accurate oil readings

• Easy installation using common shop tools

• Built to Mercury Marine OEM specifications for proper fit and precision

Engine & Boat Compatibility

• Fits MerCruiser V8 engines from 1998 and newer

• Compatible with 305, 350, 377, and 502 cubic-inch displacement engines

• For sterndrive and inboard installations

• Ideal for sport boats, cruisers, performance boats, and multi-purpose family boats

• Always confirm compatibility using your service or owner’s manual

Performance & Practical Benefits
A reliable dipstick may seem like a small thing, but anyone who’s spent time around marine V8 engines knows how much peace of mind it brings. With the 861942T9 installed, oil checks feel quick and steady—no fumbling around for visibility, no staring at faint marks, no wondering if the measurement is off. The bright yellow handle stands out in the dim, crowded space of an engine compartment, so you can grab it with confidence even when the lighting isn’t ideal.

Accuracy matters just as much. This dipstick is matched exactly to Mercury’s V8 platforms, so the oil level you see is the oil level you actually have. That means smoother startups, steadier running temperatures, and fewer worries about lubrication on long days under throttle. It’s built from durable steel to resist bending, corrosion, and the constant heat cycles that marine engines go through. Whether you’re checking oil before a casual afternoon ride or during a mid-season service, the reading feels clean, tight, and trustworthy.

Installation is simple. Most boaters can swap their dipstick using basic tools, and once it’s in place, it feels secure and familiar—just like every OEM part should. No awkward angles, no forced fit, and no “make it work” adjustments that sometimes happen with aftermarket substitutes.

Why Buy OEM
Choosing an OEM dipstick might seem like a small decision, but it’s one that pays off every time you open the engine hatch. Mercury Marine parts are built with your exact engine tolerances in mind, which means better consistency and no surprises when it comes to oil readings. Aftermarket dipsticks often miss the mark on length or markings, leading to confusing measurements that can cause overfilling or running low—both of which shorten engine life.

With an OEM part, you get the correct fit, long-term durability, and the kind of dependability fellow boaters swear by. It’s simply the practical choice for anyone who wants their engine to run right.

FAQ

Q1: Which engines does the 861942T9 dipstick fit?
It fits MerCruiser V8 engines from 1998 and newer, including 305, 350, 377, and 502 cubic-inch models.

Q2: How is this different from aftermarket dipsticks?
OEM markings and length are precise, giving accurate readings that generic dipsticks often miss.

Q3: How do I confirm this is the right part?
Check your engine model and year, then match the part number using your owner’s or service manual.

Q4: Can this dipstick be used in saltwater and freshwater boats?
Yes. It’s built for marine environments and resists corrosion when properly maintained.

Q5: Is installation simple?
Most boat owners can replace it easily using common hand tools.