8H033306 Maintenance Service Kit for Honda BF75D BF90D | JLM Marine

8H033306 Maintenance Service Kit for Honda BF75D BF90D

This aftermarket maintenance service kit is designed for Honda BF75D and BF90D outboard engines. It consolidates the essential service components needed for a complete maintenance interval into a single package, helping technicians and boat owners perform thorough engine upkeep efficiently.

The kit serves as an aftermarket replacement for Honda OEM kit 8H033306, covering lubrication, fuel filtration, sealing, and gear oil circulation functions. Each component within the kit corresponds to a specific Honda OEM part number, allowing straightforward cross-referencing against your engine's service manual.

• Includes oil filter, dual-stage fuel filtration, drain gaskets, O-rings, and gear oil pump in one kit.
• Each component references a Honda OEM part number for accurate fitment verification.
• Designed for standard scheduled maintenance on BF75D and BF90D outboard engines.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket references.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

The following components are included in this maintenance service kit:

• Oil Filter × 1 — OEM Ref. 15400-RBA-F01
• Fuel Filter × 1 — OEM Ref. 16911-ZY3-010
• Fuel Filter × 1 — OEM Ref. 16910-ZY9-004
• Gasket × 1 — OEM Ref. 94109-12000
• Lower Unit Drain Gasket × 3 — OEM Ref. 12-191833
• O-Rings × 3 — OEM Ref. 91301-ZW4-003
• Gear Oil Pump × 1 — JLM Part No. 24OP149

Important: Please verify all part numbers and component quantities against your engine's service manual before installation.

Installation Guide

1. Prepare the engine: Place the outboard in a safe, accessible position. Disconnect the battery and allow the engine to cool completely before beginning any service work.
2. Drain the engine oil: Remove the oil drain plug and allow the old engine oil to drain fully into an appropriate container. Remove and discard the old oil filter (OEM Ref. 15400-RBA-F01).
3. Install the new oil filter: Lightly lubricate the gasket of the new oil filter with clean engine oil. Thread it on by hand until snug, then tighten per Honda's torque specification.
4. Replace the fuel filters: Locate both fuel filters on the engine (OEM Refs. 16911-ZY3-010 and 16910-ZY9-004). Remove the old filters, noting the direction of fuel flow, and install the new filters ( and 24FF015) in the correct orientation.
5. Inspect and replace O-rings: Remove the old O-rings (OEM Ref. 91301-ZW4-003) from their respective seating surfaces. Lightly lubricate the three new O-rings with marine-grade grease before seating them.
6. Replace the gasket: Remove the old gasket (OEM Ref. 94109-12000) and ensure the mating surface is clean and free of debris. Install the new gasket, ensuring it is seated evenly.
7. Drain the lower unit gear oil: Remove the lower unit drain and vent screws. Allow gear oil to drain fully into an appropriate container.
8. Replace the lower unit drain gaskets: Discard the three old drain gaskets (OEM Ref. 12-191833). Install the three new drain gaskets on the drain and vent screws before reinstalling.
9. Install the gear oil pump: If replacing the gear oil pump, follow Honda's service manual procedure for removal and reinstallation. Ensure all mounting hardware is torqued to specification.
10. Refill fluids: Refill the engine with the manufacturer-recommended grade and quantity of engine oil. Refill the lower unit with the appropriate marine gear lubricant through the lower drain port until it flows from the vent hole, then reinstall and torque all plugs.
11. Check for leaks: Reconnect the battery and run the engine at idle. Inspect all service points—oil filter, fuel filters, drain plugs, and O-ring areas—for any signs of leakage before returning to full operation.
12. Record the service: Log the maintenance date, engine hours, and all replaced components in your engine's service record for future reference.

Troubleshooting & FAQ

How do I confirm this kit fits my specific Honda engine?
Cross-reference your engine model against the Compatible Engine Models table above (BF75D and BF90D). You can also verify individual component OEM part numbers in your Honda service manual or the Honda parts catalog before ordering.

The kit includes two different fuel filters—which one goes where?
OEM Ref. 16911-ZY3-010 and OEM Ref. 16910-ZY9-004 serve different filtration stages on the BF75D/BF90D. Refer to your Honda service manual or parts diagram to confirm the exact installation location of each filter on your engine.

How often should I perform this maintenance service?
Honda generally recommends annual maintenance or service at every 100 hours of operation—whichever comes first—for the BF75D and BF90D. Always follow the intervals specified in your Honda owner's manual for your operating conditions.

What are signs that the gear oil pump (24OP149) needs replacement?
Common indicators include unusual noise from the lower unit, difficulty maintaining gear oil pressure, or gear oil that appears milky or contaminated. If you observe any of these symptoms, inspect the pump during your next service interval.

Can I install this kit myself, or do I need a certified technician?
Experienced boat owners comfortable with outboard maintenance can use this kit; however, professional installation is recommended to ensure all torque specifications and procedures are followed correctly, particularly for the gear oil pump and lower unit service.

Is this an OEM or aftermarket part?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.