42948A7 Mercury Throttle Cam Assy | Genuine Used Part
42948A7 Mercury Throttle Cam Assy | Genuine Used Part
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🔧 Product Description
Genuine Mercury Mariner Throttle Cam Assembly - Part Number: 42948A7
A genuine used Mercury Mariner throttle-cam assembly for selected three-cylinder two-stroke outboards.
The shaped cam coordinates carburettor throttle opening with movement of the spark-advance linkage. Its profile is critical to the factory link-and-synchronisation sequence.
⚙️ Key Features
- Genuine Mercury Marine OEM throttle-cam assembly
- Correct current Mercury part number 42948A7
- Supersedes earlier 42948T and 42948C2 references
- Used on 65 Jet and 70HP to 90HP three-cylinder engines
- Controls the relationship between throttle opening and ignition advance
🚤 Compatibility
Commonly used on
- Mercury and Mariner three-cylinder throttle-lever and linkage assemblies
- 65 Jet plus 70HP, 75HP, 80HP and 90HP two-stroke outboards
Typically suits
- Engine models:
- Mercury / Mariner 65 Jet - US serial 0D283222 through 1B000001 and above across the applicable groups
- Mercury / Mariner 65 Jet - Belgium serial 9793577 to 0P325499
- Mercury / Mariner 70HP three-cylinder - US serial 0A996142 to 0C221999
- Mercury / Mariner 70HP three-cylinder - Belgium serial 9483121 to 9589038
- Mercury / Mariner 75HP three-cylinder - US serial 0A996142 to 1B000001 and above
- Mercury / Mariner 75HP three-cylinder - Belgium serial 0P325500 and above
- Mercury / Mariner 80HP three-cylinder - US serial 0A996142 to 0C221999
- Mercury / Mariner 80HP three-cylinder - Belgium serial 9483121 to 9589038
- Mercury / Mariner 90HP three-cylinder - US serial 0A996142 to 1B000001 and above
- Mercury / Mariner 90HP three-cylinder - Belgium serial 0P017000 and above
- HP Range: 65 Jet / 70HP - 90HP
- Engine Type: Mercury / Mariner three-cylinder two-stroke outboard
- Year Range: Approximately mid-1980s - 2000s
🔌 Function
The cam converts control-lever movement into a programmed sequence of carburettor opening and spark advance. Its profile ensures the ignition and throttle systems remain synchronised through idle, acceleration and full-throttle operation.
⚠️ Common Signs of Failure
- Cam surface is worn, cracked or damaged
- Roller does not track smoothly over the cam profile
- Throttle opens too early or too late in relation to ignition advance
- Engine hesitates during acceleration
- Link-and-sync adjustment cannot be set correctly
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 42948A7 → Supersedes 42948T
- 42948T → Supersedes / relates to 42948C2
- 42948C2 earlier cam reference
OEM / Related Numbers
- 42948A7
- 42948T
- 42948C2
- 42947 1 related spark-advance lever
- 24-55162 related spring
- 24-14159 related cam-return spring
- 745061148994
Aftermarket / Verified Equivalents
- No aftermarket equivalent
📦 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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