Zipwake Series E Trim Control System Kit – Advanced Boat Trim Control
Price range: $9,670.00 through $14,340.00
New Mercury 50–60 HP 3-Cylinder BIGFOOT Outboard Lower Unit (1991–2008) – Remanufactured – L Shaft
Price range: $2,689.00 through $2,829.00
-11%
Fast delivery within 72 Hours
New Mercury 75–125HP Outboard lower unit – 3 CYL DFI/OPTIMAX 2004-2018 – New/Remanufactured
Price range: $2,522.00 through $2,822.00
Need help finding the right lower unit?
- Unsure about compatibility? Our team can verify the perfect fit for your Mercury model.
- Call us at 888 868 7880 — we’re happy to guide you.
- Or fill out the form below in chatbox and we’ll respond quickly with the right match.
Description
New Mercury 75–125HP Outboard Lower Unit – 3 CYL DFI/OPTIMAX 2-Stroke (2004–2018) – New / Remanufactured
Upgrade your outboard for optimal performance with this premium replacement lower unit designed for Mercury 75HP, 90HP, 115HP, and 125HP 3-cylinder DFI/OPTIMAX 2-stroke engines manufactured between 2004 and 2018. Engineered for durability and precision, this unit offers robust construction to ensure maximum longevity and smooth operation. It is a direct replacement for the original OEM unit and arrives ready for fast installation with no modifications necessary.
Key Features
- Fits Mercury 75HP to 125HP, 2-stroke, 3-cylinder DFI/OPTIMAX outboards (2004–2018)
- Direct OEM replacement ensuring perfect fit and function
- Available with L (20″) or XL (25″) shaft options for flexible fitment
- Robust aftermarket construction designed for maximum durability and smooth operation
- Delivered ready for quick and easy installation
Specifications Table
| Feature | Details |
|---|---|
| Compatibility | Mercury 75HP, 90HP, 115HP, 125HP (3-Cylinder) |
| Engine Type | 2-Stroke, DFI/OPTIMAX |
| Shaft Length | L (20″), XL (25″) |
| Model Years | 2004–2018 |
| Application | Direct OEM replacement |
| Build Quality | Aftermarket, high strength |
Why Choose This Product?
This aftermarket lower unit provides a reliable and durable solution for Mercury DFI and OPTIMAX 2-stroke 3-cylinder outboards. It guarantees OEM-level fit, ensuring smooth performance and long service life, making it ideal for fast repairs or performance upgrades.
Need Other Mercury Lower Units?
Browse all Mercury Lower Units
Official Reference:
Frequently Asked Questions
1. Which Mercury engines is this lower unit compatible with?
This unit fits Mercury 75HP, 90HP, 115HP, and 125HP 3-cylinder DFI/OPTIMAX 2-stroke engines produced from 2004 to 2018.
2. What shaft lengths are available?
Offers fitment for L (20″) and XL (25″) shaft lengths.
3. Is this unit an OEM or aftermarket replacement?
This is a high-quality aftermarket unit built to OEM standards.
4. Is installation complicated?
The unit is delivered fully assembled and ready for direct installation with no modifications required.
5. What warranty does this product carry?
This lower unit comes with a 1-year warranty for manufacturing defects and performance assurance.
Additional information
| Weight | 75 lbs |
|---|---|
| Dimensions | 31 × 10 × 61 in |
| Product Type |
New Lower Unit ,Re-manufactured Lower Unit |
| HP/Shaft/Years/Ratio |
115-125 OPTIMAX HP / L Shaft / 2004-2018 ,115-125 OPTIMAX HP / XL Shaft / 2004-2018 ,75-90 OPTIMAX HP / L Shaft / 2004-2018 |
Related Products
-10%
Select options
This product has multiple variants. The options may be chosen on the product page
Mercury Outboard Lower Unit Replacement – Fits 3.0L V6 / 2.6L I6 / 1.7L I4 (13 & 20 Splines) – 1.75 / 1.85 / 2.08 Ratios
SKU:
ST-90-221
Original price was: $2,070.15.$1,869.00Current price is: $1,869.00.-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 110–125 HP L4 & 70–90 HP 3-Cylinder Outboard Lower Units – 3-Jaw / 6-Jaw – New & Remanufactured
SKU:
OBR-ME-G3-06-N
Price range: $2,559.00 through $2,829.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 115 HP 4-CYL 4-Stroke Lower Unit (2001–2003) – New / Re-manufactured
SKU:
OBR-ME-G4-06-
Price range: $2,559.00 through $2,959.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 135-150 HP V6 Outboard Lower Unit DFI – 2:1 Gear Ratio (1979–2014) – New / Re-manufactured
SKU:
OBR-ME-G6-03A-N
Price range: $2,689.00 through $2,959.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 135–200 HP 4-CYL VERADO Outboard Lower Unit (2006–2019) – New / Re-manufactured
SKU:
OBR-ME-G4-11-N
Price range: $5,259.00 through $6,069.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 150-200 HP DFI V6 3.0L Outboard Lower Unit (1979–2018) – New / Remanufactured
SKU:
OBR-ME-G6-08A-N
Price range: $2,529.00 through $3,369.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 150HP Outboard Lower Unit – 4-STRK Counter Rotation – F150 PRO XS / F150 SEAPRO (2011–2024) – New / Re-manufactured
SKU:
OBR-ME-G4-15-N
Price range: $3,369.00 through $5,799.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 200–300 HP L6 VERADO Outboard Lower Unit (2006–2021) – 1.85 Gear Ratio – New/Remanufactured
SKU:
OBR-ME-G6-60-N
Price range: $6,129.00 through $7,349.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 200–300 HP V8 PRO XS Torque Master Outboard Lower Unit (2018–2025) – Re-manufactured
SKU:
OBR-ME-G8-10-R
Original price was: $7,935.39.$7,149.00Current price is: $7,149.00.-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 200–400 HP L6 VERADO Outboard Lower Unit (2006–2021) – 1.85 HD & 1.75 HD Gear Ratios – New/Remanufactured
SKU:
OBR-ME-G6-40-N
Price range: $6,129.00 through $6,939.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 40–60 HP 4-Cylinder Bigfoot 4-Stroke Outboard Lower Unit (2001–2024) – New / Re-manufactured
SKU:
OBR-ME-G3-05
Price range: $2,552.00 through $3,497.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 50–60 HP 3-Cylinder BIGFOOT Outboard Lower Unit (1991–2008) – Remanufactured – L Shaft
SKU:
OBR-ME-G3-05A
Price range: $2,689.00 through $2,829.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
New Mercury 75–90 HP 4-Cylinder 4-Stroke Outboard Lower Unit (2000–2006) – New / Re-manufactured
SKU:
OBR-ME-G4-08-N
Price range: $2,559.00 through $2,829.00-10%
Select options
This product has multiple variants. The options may be chosen on the product page
Mercury Outboard Lower Unit Replacement – Fits 2.0L, 2.4L, 2.5L – 1.87 & 2.0 Ratios – Aftermarket
SKU:
ST-90-206
Original price was: $1,326.45.$1,195.00Current price is: $1,195.00.-10%
Select options
This product has multiple variants. The options may be chosen on the product page
Mercury Outboard Lower Unit Replacement – Fits 3L – 1.62 & 1.75 Ratios – Counter Rotation – Aftermarket
SKU:
ST-90-218
Original price was: $1,548.45.$1,395.00Current price is: $1,395.00.