16740-ZW5-003 Honda Regulator | Genuine Used Part
16740-ZW5-003 Honda Regulator | Genuine Used Part
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🔧 Product Description
Genuine Honda Fuel Pressure Regulator Assembly - Part Number: 16740-ZW5-003
A genuine Honda fuel-rail pressure regulator for selected BF115A and BF130A EFI four-stroke outboards.
The regulator is mounted on the intake-manifold fuel system and maintains the pressure required by the electronic fuel injectors. Excess fuel is bypassed through the return circuit.
⚙️ Key Features
- Genuine Honda fuel-pressure regulator
- Correct part number 16740-ZW5-003
- Approximately 3.0-bar fuel-pressure specification
- Mounts to the EFI fuel rail and intake manifold
- Uses replaceable O-ring 16741-PG7-005
🚤 Compatibility
Commonly used on
- Honda BF115A and BF130A electronic fuel-injection systems
Typically suits
- Engine models:
- Honda BF115A2
- Honda BF115A3
- Honda BF115A4 / BF115A5
- Honda BF130A1
- Honda BF130A2
- Honda BF130A3
- Honda BF130A4
- Standard and counter-rotation models with the ZW5 intake manifold
- HP Range: 115HP - 130HP
- Engine Type: Honda inline-four EFI four-stroke outboard
- Year Range: Approximately 1999-2007, dependent on model and serial number
🔌 Function
The regulator maintains a stable pressure difference across the fuel injectors. A spring-loaded diaphragm opens the return passage when pressure exceeds its calibrated setting.
⚠️ Common Signs of Failure
- Hard starting or extended cranking
- Engine runs lean and loses power under load
- Rich running, black spark plugs or fuel smell
- Rough idle or poor hot restarting
- Fuel leaks into the regulator reference hose if the diaphragm ruptures
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 16740-ZW5-003 current documented pressure-regulator reference
OEM / Related Numbers
- 16740-ZW5-003
- 16741-PG7-005 regulator O-ring
- Related fuel rail and return pipe
- Related intake-manifold fuel hoses and clamps
Aftermarket / Verified Equivalents
- HWATPS 3.0-bar replacement regulator
- Generic 16740-ZW5-003 BF115 / BF130 pressure regulator
- Specialist-tested used or remanufactured regulator
📦 Condition
- Genuine used part
- Removed from running engine where applicable
- In good working condition unless otherwise stated
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.
Returns & Warranty
Returns & Warranty
14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in the condition you received it for a refund or exchange. Full details in our Refunds & Returns policy.
Not sure this fits?
Not sure this fits?
Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.
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