99940A2 Mercury MerCruiser Continuity Circuit Kit | Genuine Quicksilver OEM Part
99940A2 Mercury MerCruiser Continuity Circuit Kit | Genuine Quicksilver OEM Part
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🔧 Product Description
Genuine Quicksilver MerCruiser Drive Continuity Circuit Kit - Part Number: 99940A2
Genuine Quicksilver continuity circuit kit used on MerCruiser Alpha, Bravo and related sterndrive assemblies. This kit restores electrical continuity / bonding between drive and transom components, helping the corrosion protection system work correctly with anodes and MerCathode equipment.
⚙️ Key Features
- Genuine Quicksilver OEM continuity circuit kit
- Correct Mercury part number 99940A2
- Supersedes / replaces earlier 99940A1 where applicable
- Used on MerCruiser Alpha and Bravo sterndrives
- Helps maintain correct grounding and bonding continuity
- Important corrosion-prevention service component
🚤 Compatibility
Commonly used on
- MerCruiser Alpha One Gen I and Gen II sterndrives
- MerCruiser Bravo One, Bravo Two and Bravo Three sterndrives
- MerCruiser Bravo X One / Two / Three sterndrives
- Drive installations where grounding continuity straps or wires are missing or damaged
Typically suits
- Drive / transom models:
- MerCruiser R / MR / Alpha One - 1983-1990
- MerCruiser Alpha One Gen II - serial 0D469859 and up
- MerCruiser Bravo One - serial 0B664190 and up
- MerCruiser Bravo Two - serial 0B664190 and up
- MerCruiser Bravo Three - serial 0B664190 and up
- MerCruiser Bravo X One / Two / Three where continuity kit 99940A2 is specified
- MerCruiser XR / XZ Bravo variants where drive continuity bonding is required
- MerCruiser sterndrive corrosion protection systems using continuity hardware 99940A2 / 99940A1
- Drive Type: MerCruiser Alpha and Bravo stern drive
- System Type: Electrical continuity / bonding / corrosion protection kit
🔌 Function
The kit connects drive and transom components electrically so sacrificial anodes and MerCathode systems can protect the drive correctly from galvanic corrosion.
⚠️ Common Signs of Failure
- Rapid anode loss
- Corrosion despite good anodes
- Missing or broken continuity straps
- Continuity test fails between drive components
- Corrosion around trim cylinders, bell housing or drive housing
- Drive serviced and bonding wires damaged or omitted
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 99940A2 current OEM continuity circuit kit reference
- 99940A1 earlier continuity circuit kit reference
OEM / Related Numbers
- 99940A2
- 99940A1
- MerCruiser continuity kit
- Drive continuity circuit kit
- Ground continuity kit
- Bonding circuit kit
- Corrosion protection continuity kit
- Alpha continuity kit
- Bravo continuity kit
Aftermarket / Verified Equivalents
- Aftermarket continuity circuit kits for 99940A2 / 99940A1 applications
- MCC-style aftermarket MerCruiser continuity kit equivalents
- Aftermarket Alpha / Bravo ground continuity kits where matched by drive and transom style
- Use corrosion-resistant marine bonding hardware and correct cable routing only
📦 Condition
- Genuine Quicksilver part
- Brand new
- Supplied in original or equivalent packaging
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 new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. 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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