Sierra 18-2436
Sierra 18-2436 — Product description
Upgrade Your Outboard's Power Trim System with Confidence
Keeping your boat's power trim system running smoothly is essential for effortless handling on the water. The Sierra 18-2436 hose steps in as a reliable solution, designed to handle the hydraulic pressures and marine environments that come with boating adventures. Crafted from high-grade materials resistant to oil, fuel, and saltwater corrosion, this hose ensures consistent performance whether you're cruising lakes or battling ocean swells.
What sets this part apart? It's not just a replacement—it's built to exceed everyday demands. Anglers, weekend warriors, and professional charter captains alike trust it for its durability and precise engineering, helping prevent leaks that could sideline your trips.
Seamless Compatibility for Mercury Outboards
This hose aligns perfectly with a range of Mercury and Mariner engines, making it a go-to for owners of popular models from the late 1970s through the 1980s. Focus on these key fits:
- 75-115 HP inline engines (1978-1988)
- 125-300 HP V6 and V8 models (various years in that era)
- Specific Sport Jet applications
Before installing, cross-check your engine's serial number against Mercury's trim pump setup. This ensures a hassle-free swap, restoring factory-like hydraulic flow for quick tilts and trims.
Key Features That Deliver Real-World Reliability
- Reinforced Construction: Braided layers withstand bursts up to demanding PSI levels, outlasting stock hoses in harsh conditions.
- UV and Chemical Resistance: Fends off degradation from sun exposure, ethanol-blended fuels, and hydraulic fluids.
- Exact OEM Dimensions: Matches the original 32-861128 specs for plug-and-play installation—no custom fittings needed.
- Lightweight Yet Tough: Easier to maneuver during service without sacrificing strength.
Sierra's engineering draws from decades of marine expertise, focusing on parts that pass rigorous pressure, flex, and environmental tests. It's why boaters report fewer breakdowns and longer intervals between services.
Pro Tips for Installation and Longevity
Swapping this hose? Start by relieving system pressure—depressurize the trim pump reservoir first. Use thread sealant on fittings, torque to spec (typically 15-20 ft-lbs), and bleed air from lines to avoid spongy operation.
- Disconnect battery and old hose.
- Inspect O-rings and replace if worn.
- Route new hose away from hot exhaust paths.
- Test at dockside with full trim cycles.
For maintenance, inspect annually for cracks or bulges, especially after heavy use. Pair with fresh hydraulic fluid to maximize life—think of it as routine insurance against costly pump failures.
Why Boaters Choose Sierra Over Alternatives
In a sea of aftermarket options, Sierra stands out for its commitment to quality control. Unlike generic imports, each hose undergoes batch testing to mimic real boating stresses. Owners often note smoother trim action post-install, with some extending service life by 50% compared to worn OEM parts. It's the smart pick for restoring peak performance without the premium cost.
Frequently Asked Questions
What engines is the Sierra 18-2436 power trim hose compatible with?
It fits Mercury and Mariner outboards from 75-300 HP, primarily inline and V6/V8 models from 1978-1988. Always verify your engine's trim system against OEM diagrams for exact match.
Is the Sierra 18-2436 a direct replacement for Mercury part 32-861128?
Yes, it's engineered as a direct OEM substitute, matching length, fittings, and pressure ratings for seamless integration.
What material is the Sierra 18-2436 hose made from?
It's constructed with synthetic rubber tubing reinforced by braided polyester or nylon, offering superior resistance to hydraulic fluids, oils, and environmental factors.
How do I know if my power trim hose needs replacement?
Look for slow trim speed, leaks at connections, external bulging, or fluid loss. Test by cycling the trim fully—any hesitation signals it's time for a new one.
Can I install the Sierra 18-2436 myself?
Absolutely, with basic tools like wrenches and a flare nut tool. Depressurize first, follow routing paths, and bleed the system. It's a 30-60 minute job for most DIYers.
Does this hose improve trim performance?
It restores optimal hydraulic flow, often resulting in faster, smoother operation compared to a degraded original hose.
How should I maintain the power trim hose after installation?
Check for wear seasonally, keep fluid levels topped, and avoid kinks. Rinse with fresh water after saltwater use to prevent corrosion.
SKU: NVN-4004076
MPN: 18-2436
UPC: 808282111649
Technical specifications
| Brand | Sierra Engine Parts |
| Model | Sierra 18-2436 |
| SKU / MFR# | 4004076 |
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