Sierra Engine Parts

Sierra 18-5697 Brush Kit MC 710-75384

SKU: 4002828 · UPC: 747730044545 · MPN: 18-5697
4.7 · 0 reviews
Authorized dealer
$23.99
$26.09Save $2.10
or 4 payments of $5.99 with Affirm
In stock — Ships today
SAME-DAY SHIPPING · 14:23 EST
Order in time, ships today
Ships from your nearest warehouse. UPS Ground 2–4 business days.
Free shipping
Orders $500 or more
Free returns
Within 30 days
Same day shipping
Order before 3 PM (EST)
Ask anything
We're here to help
$23.99
02 · Overview

Sierra 18-5697 Brush Kit MC 710-75384 — Product description

Enhance Your Marine Engine Performance with Reliable Brush Replacement

Keeping your boat's engine running smoothly is essential for every outing on the water. Worn brushes in the starter or alternator can lead to frustrating starts, dimming lights, or intermittent power issues that leave you stranded. This precision-engineered brush kit steps in as a direct-fit solution, restoring reliable electrical contact and extending the life of your engine components.

Crafted from high-grade carbon materials designed for the harsh marine environment, these brushes resist wear from vibration, heat, and moisture better than stock options. Boaters often report smoother cranking and consistent charging after installation, turning potential downtime into seamless adventures.

Perfect Fit for Your Setup

Engineered to match original specifications, this kit aligns seamlessly with a wide array of setups. It's tailored for those power systems where dependable brush performance is non-negotiable, ensuring drop-in compatibility without modifications. Whether you're maintaining an older classic or a well-used workhorse, it slots right into place for hassle-free servicing.

  • Direct replacement for common wear-prone applications
  • Compatible with various horsepower configurations
  • Suits both freshwater and saltwater exposures

Pro tip: Cross-reference your engine serial number during routine checks to confirm alignment, especially if your boat has seen heavy use in corrosive conditions.

Spot the Signs and Unlock Key Benefits

Brushes naturally wear down over time, but in marine applications, factors like saltwater spray and constant humidity accelerate the process. Watch for these telltale symptoms:

  • Slow or hesitant engine cranking
  • Intermittent electrical failures
  • Arcing sparks visible during operation
  • Reduced battery charging efficiency
  • Unusual noise from the starter motor

Swapping in fresh brushes delivers immediate improvements:

Stronger starts with less strain on the battery.
Optimized alternator output for all onboard electronics.
Lower risk of costly motor rebuilds down the line.

Many owners notice a difference after just one season, with some extending service intervals by proactive replacements during annual tune-ups.

Step-by-Step Installation for DIY Confidence

No need for a marine mechanic—most replacements take under an hour with basic tools. Here's a straightforward guide:

  1. Disconnect the battery and remove the engine cover for access.
  2. Locate the brush holder assembly on the starter or alternator (consult your service manual for exact positioning).
  3. Carefully extract old brushes, noting spring tension and wiring orientation.
  4. Insert new brushes, ensuring proper seating and free movement.
  5. Reassemble, reconnect, and test-start the engine.

Insider advice: Clean contacts with electrical solvent beforehand to maximize performance. Always wear safety gear and work in a well-ventilated area to avoid fumes.

Caution: Ensure the engine is fully cooled before starting work to prevent burns.

Longevity Tips for Marine Harshness

Marine engines face unique challenges—salt buildup, fuel quality variations, and idle hours. To get the most from your investment:

  • Inspect brushes annually or every 100 hours of operation.
  • Rinse electrical components with freshwater after saltwater runs.
  • Avoid prolonged idling, which generates excess heat.
  • Pair with quality battery maintenance for holistic electrical health.

Owners in coastal areas swear by these habits, often doubling brush life compared to neglected setups.

Frequently Asked Questions

Brush Kit MC 710-75384


SKU: NVN-4002828
MPN: 18-5697
UPC: 747730044545
03 · The numbers

Technical specifications

BrandSierra Engine Parts
ModelSierra 18-5697 Brush Kit MC 710-75384
SKU / MFR#4002828

Set product metafields under specs.* to populate this table.

04 · Before you buy

Frequently asked questions

No questions yet. Got one? Drop us a line.

05 · Customer voices

Customer reviews