Sierra 18-6427 Premium Outboard Starter

SKU: 4002911 - UPC: 808282137823 - MPN: 18-6427
$321.69 $362.19 ( / )

Available Stock : 3

Why Upgrade to the Sierra Premium Outboard Starter? When your outboard engine cranks slowly or refuses to start altogether, it's often the starter motor that's holding you back from the water. The Sierra Premium Outboard Starter steps in as a robust, reliable replacement designed for the demands of marine environments....
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Sierra 18-6427 Premium Outboard Starter Product Description

Why Upgrade to the Sierra Premium Outboard Starter?

When your outboard engine cranks slowly or refuses to start altogether, it's often the starter motor that's holding you back from the water. The Sierra Premium Outboard Starter steps in as a robust, reliable replacement designed for the demands of marine environments. Built with high-grade materials, it delivers consistent torque and speed to fire up your engine on the first try, even after long periods of storage or exposure to saltwater corrosion.

Unlike basic replacements, this premium model incorporates reinforced gears and brushes for extended lifespan under heavy use. Boaters who tackle rough seas or frequent weekend trips rave about its quiet operation and reduced vibration, making it a smart choice for keeping your adventures uninterrupted.

Key Features That Set It Apart

  • Durable Construction: Zinc-plated housing resists corrosion from saltwater spray and humidity, ensuring longevity in harsh conditions.
  • High-Torque Performance: Powerful solenoid engages swiftly, providing the muscle needed for larger displacement engines.
  • Precision Engineering: OEM-level fitment means no modifications required—bolts right on with standard tools.
  • Thermal Protection: Built-in safeguards prevent overheating during repeated starts, ideal for trailering or docking maneuvers.
  • Sealed Design: Keeps moisture and debris out, maintaining peak efficiency season after season.

These features translate to fewer breakdowns and more time on the water, backed by Sierra's reputation for matching or exceeding original equipment standards.

Signs Your Outboard Starter Needs Replacing

Spotting starter issues early can save you from being stranded. Common symptoms include:

  • A clicking sound but no cranking—indicating solenoid failure.
  • Slow or grinding cranking, pointing to worn brushes or armature.
  • Intermittent starting, often due to poor connections or internal shorts.
  • No response at all, even with a fully charged battery.

Regular inspections during off-season storage can catch these problems. Test by jumping the solenoid terminals safely; if it spins freely off the engine, the issue might be electrical rather than mechanical.

Effortless Installation Tips for DIY Boaters

Swapping in a new starter is a straightforward weekend project. Disconnect the battery first for safety, then:

  1. Remove the old starter by loosening mounting bolts and detaching the positive cable and solenoid wire.
  2. Inspect the flywheel for damage while it's accessible—replace teeth if scored.
  3. Mount the new unit, torque bolts to spec (typically 15-20 ft-lbs), and reconnect wires cleanly to avoid future corrosion.
  4. Bench-test before full install: Connect to a 12V source and confirm smooth rotation.

Pro tip: Apply dielectric grease to terminals for foolproof connections in wet conditions. Most installs take under an hour with basic wrenches and a socket set.

Maximizing Longevity in Marine Conditions

To get the most from your Sierra starter, flush the engine after every saltwater outing and store with a trickle charger. Annually, check brushes for wear and clean contacts. Pairing it with a quality battery and starter relay ensures the entire system performs optimally, potentially doubling service life compared to neglected setups.

Real-world feedback from fishing guides and tournament anglers highlights its edge in reliability—fewer hot swaps during critical moments.

Frequently Asked Questions

What types of outboard engines is the Sierra Premium Starter compatible with?

This starter fits a wide range of popular outboard brands and models. Consult Sierra's latest catalog or application guide for exact matches to your engine's horsepower and year.

How do I know if my starter motor has failed?

Listen for clicking without cranking, slow rotation, grinding noises, or complete no-start conditions despite a good battery. Voltage drop tests under load can confirm.

Is installation difficult for beginners?

No—it's a plug-and-play swap using common tools. Disconnect power, unbolt the old unit, bolt on the new one, and reconnect. Full guides are widely available online.

What makes this starter 'premium' compared to standard options?

Premium upgrades include corrosion-resistant plating, heavy-duty gears, thermal overload protection, and sealed components for superior marine durability.

Can it handle frequent starts in saltwater environments?

Absolutely. The zinc plating and sealed design combat saltwater corrosion, making it ideal for coastal or offshore boating with proper maintenance.

Does it require any engine modifications?

None needed. It's engineered for direct OEM replacement, ensuring perfect alignment and bolt patterns.

How often should I replace the starter brushes?

Inspect annually during service. Replace if worn below 1/4 inch for optimal performance and to prevent arcing.

See Sierra's catalog for current application information.



Save $40 when you buy the Sierra 18-6427 Premium Outboard Starter for only $321 from NVN Marine! Same day shipping before 3pm.

Sierra 18-6427 Premium Outboard Starter Technical Specifications

Type: 

Engine | Starters / Alternators / Solenoids

Vendor: 

Sierra Engine Parts

Weight: 

7.79 lb

Application: 

Yamaha 68V-81800-01-00

Sierra 18-6427 Premium Outboard Starter User Reviews

Sierra 18-6427 Premium Outboard Starter Shipping & Return

Shipping Weight: 

7.79 lb

Box Sizes: 

4.00 (h) x 6.00 (w) x 9.00 (l)

Cubic Feet: 

216.0

Returnable: 

Yes

For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.

Sierra 18-6427 Premium Outboard Starter

$321.69 $362.19 ( / )