When shopping for a new 115 hp outboard or related components, choose reliable parts that fit Mercury/MARINE 115hp engines and similar EFI 4-stroke models. This guide highlights five compatible products that support performance, reliability, and easy installation for boaters who rely on 115 hp platforms. The selected items are best for boaters needing replacement alternators, fuel or ignition-related parts, and transom protection for 75–115 hp class engines. Each entry explains who should buy it, why it’s a good match, and any practical limitation to consider.
| Product | Best For | Why It’s Useful |
|---|---|---|
| Alternator Compatible With Mercury 115 ELPT / EFI | Mercury/MARINE 115 HP EFI 4-stroke owners | 50A replacement alternator with CW rotation, 12V, 58.5mm pulley, and IR/IF regulator. A solid option to restore charging for 2001–2020 era 115 ELPT EFI engines. |
| OEG Parts New Alternator For Mercury 115 ELPT / EFI | Mercury 115ELPT/EXLPT EFI owners needing a direct replacement | 50A, 12V, CW rotation, IR regulator, and 58.5mm pulley with compatible part numbers for broad 2001–2014 models. |
| Yezoauto Fuel Supply Module For Mercury 75–115 HP EFI | Fuel system upgrades for 75–115 HP EFI engines | Direct-fit module with high-durability materials and corrosion resistance. Improves fuel delivery consistency for 4-stroke EFI engines. |
| Caltric Stator For Mercury 115 HP 2-Stroke | Older 115-HP two-stroke maintenance | Stator replacement option that supports traditional Mercury 2-stroke systems in the 90–115 HP range with multiple OEM-compatible numbers. |
| maXpeedingrods Transom Saver For 75–300 HP Mercury | Trailering protection for larger Mercury outboards | Sturdy transom saver design to protect the transom and engine during road travel for a wide horsepower range, including 115 hp setups. |
Alternator Compatible With Mercury 115 ELPT EFI 50A 12V
The 50A alternator is designed for Mercury/MARINE 115 ELPT EFI and related 75–115 HP models from 2001 to 2011/2012 era. Best for boaters who need a straightforward replacement with certified 12V output, CW rotation, and a 58.5mm pulley. Choose this if your engine uses the 50A 5SI-class alternator and you want a regulator IR with IF fan for stable performance. A potential limitation is the absence of a complete hardware kit; mounting hardware may be required separately depending on installation.
OEG Parts New Alternator For Mercury 75–115 HP EFI
This 50A unit suits Mercury 115ELPT/EXLPT EFI range from 2001–2014 and similar 75–115 HP EFI models. It lists multiple compatible OEM numbers and part references, aiding cross-compatibility for older installations. Best for owners who need a direct match to ARROWHEAD, DELCO, or MERCURY OEM cross-refs. The data notes no mounting hardware included, so you may need bolts or brackets from your prior setup. Avoid if you require a complete pre-wired kit with mounting hardware.
Yezoauto Fuel Supply Module For Mercury 75–115 HP EFI
The Yezoauto module targets EFI 75–115 HP engines, offering a direct-install fuel supply upgrade with corrosion-resistant materials. Best for owners seeking a straightforward plug-in replacement to restore reliable fuel delivery in 4-stroke Mercury powerplants. A limitation to note is compatibility specific to certain HP and model years; confirm your exact engine code before purchase to avoid misfit.
Caltric Stator For Mercury 115HP 2-Stroke
The Caltric stator is presented for Mercury 115HP 2-Stroke engines, including various 90–125HP applications. Best for owners of older two-stroke Mercury engines who want a period-correct alternative with wide OEM cross-reference numbers. The listing notes multiple part numbers, reflecting broad compatibility. A caution is that it’s a replacement part for older configurations; verify your stator’s exact fitment and mounting orientation before ordering.
maXpeedingrods Transom Saver For Mercury 75–300 HP
This transom saver supports a wide horsepower range, including 115 HP Mercury engines. Best for trailering and transport, it protects the transom and engine during road travel. Notable is its stainless steel frame and rubber cushions for impact absorption. A potential limitation is that it’s a universal fit; always confirm engine mounting alignment and pin availability for your specific boat configuration.
DETYI 4-Stroke Transom Saver For Mercury 75–300 HP
The DETYI transom saver provides engine protection during trailering across a broad 75–300 HP range, including 115 HP setups. Best for boaters seeking a robust stainless steel frame with a rubber buffer to cushion road shocks. A caution is that some installations require precise alignment with mounting hardware; verify compatibility with your bracket and engine mounting structure.
Buying Guide
- Engine compatibility: Confirm your 115 hp class engine’s exact model and year to ensure the part cross-refs align with Mercury/MARINE EFI 4-stroke configurations.
- Electrical vs mechanical parts: For electrical components like alternators, check voltage, amperage, rotation, and regulator type to match your charging system.
- Installation hardware: Some listings omit mounting hardware. Budget for brackets, bolts, and seals if missing.
- OEM cross-refs: Parts often list OEM numbers; use these to verify cross-compatibility across MARINE and Mercury models.
- Fuel system readiness: Fuel modules should match your HP range and year; mismatches can affect engine startup and running reliability.
- Trailering protection: Transom savers should align with engine height and mounting brackets; ensure pins and cushions fit your boat’s transom profile.
- Warranty and returns: Check the seller’s return policy and any warranty coverage, especially for critical components like alternators and stators.
FAQ
- Q: Will these parts fit all 115 hp Mercury four-stroke engines? A: Fit varies by year and model; verify exact OEM cross-refs and part numbers for your engine.
- Q: Do these alternators come with mounting hardware? A: Some listings specify hardware included; if not, hardware may be needed separately.
- Q: Can I install a fuel module myself? A: Direct-fit modules designed for EFI engines are typically user-friendly, but follow manufacturer instructions and disconnect the battery before installation.
- Q: Are transom savers universal? A: They are designed for broad ranges, but confirm engine mounting height and bracket compatibility with your boat.
- Q: Should I replace multiple components at once? A: If you’re performing preventive maintenance on an older 115 hp engine, coordinating alternator, fuel system, and transom protection can simplify future servicing.
- Q: Where can I verify compatibility quickly? A: Compare the listed part numbers and model-year coverage with your engine’s service manual or dealer guidance.