Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 0
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 1
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 2
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 3
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 4
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 0
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 1
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 2
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 3
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 4

Suzuki Lower Unit | SE528 | Counter Rotation | DF200/225/250 25-inch & 30-inch Shaft

$1,895.00
$2,070.15
$1,895.00
(-8%)
SKU: 90-528-B25F
Product type: Lower Unit
Please hurry! Only 98 left in stock
Subtotal: $1,895.00

Required for fitment review to confirm compatibility.

10 customers are viewing this product

✓ 3-Year Warranty ✓ Fitment Checked Before Shipping ✓ Expert Phone Support

Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 0

Suzuki Lower Unit | SE528 | Counter Rotation | DF200/225/250 25-inch & 30-inch Shaft

$2,070.15 $1,895.00
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 0
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 1
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 2
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 3
Suzuki Lower Unit SE528 – Counter Rotation – Replaces DF200/225/250ZX/ZXX 2004–Current – 25″ & 30″ Shaft image 4

Suzuki Lower Unit | SE528 | Counter Rotation | DF200/225/250 25-inch & 30-inch Shaft

$2,070.15 $1,895.00
Engine/Ratio/Driveshaft:: 3.6L/2.29/25

    This Suzuki counter rotation lower unit SE528 is a new premium aftermarket Suzuki lower unit for select Suzuki DF200, DF225, and DF250 V6 outboards requiring counter/left-hand rotation. Designed as a Suzuki outboard lower unit replacement for confirmed 25-inch (ZX) and 30-inch (ZXX) applications, the SE528 provides a dependable replacement gearcase for compatible multi-engine setups.

    Built for high-horsepower Suzuki outboards, this counter-rotating gearcase is engineered to restore reliable power delivery and proper rotation in compatible twin- and multi-engine installations. The unit comes in a professional black finish and can be painted to match your Suzuki outboard.

    • Counter-Rotation Replacement: Purpose-built Suzuki replacement gearcase for compatible left-hand/counter-rotation applications.

    • DF200, DF225 & DF250 Fitment: Designed for confirmed Suzuki V6 applications in the 200–250 HP range.

    • 25" & 30" Applications: Available for confirmed 25-inch (ZX) and 30-inch (ZXX) counter-rotation configurations.

    • Multi-Engine Applications: Designed for compatible Suzuki installations requiring a counter-rotating lower unit.

    • Premium Aftermarket Construction: New aftermarket replacement designed to restore dependable lower-unit performance.

    • Paintable Black Finish: Supplied in black and can be custom-painted to match your Suzuki outboard.

    • Brand: SEI
    • Part Number: SE528 (90-528-B25F / 90-528-B30F)
    • Cross-Reference: Suzuki DF200ZX, DF225ZX, DF250ZX
    • Rotation: Counter Rotation (Left Hand)
    • Engine Compatibility: 3.36L V6
    • Gear Ratio: 2.29:1
    • Shaft Lengths: 25" (TX) and 30" (TXX)
    • Finish: Black (Paintable)

    This unit replaces Suzuki 4-Stroke Counter Rotation models (2004–Current):

    • DF200: ZX, ZXX, TXZ, TXZW models.
    • DF225: ZX, ZXX, TXZ, TXZW, TXXZ models.
    • DF250: ZX, ZXX, TXZ, TXZW, TXXZ models.
    • Counter Rotation Only: This unit is for Left-Hand Rotation. It will NOT work on single-engine setups requiring Standard Rotation.
    • AP Series Exclusion: Does NOT replace Suzuki "AP" (Precision Control/Digital) models.
    • Critical Shaft Measurement: Ensure you have verified your shaft length (25" L-Model or 30" XL-Model) before ordering.
    • Tooth Count & Spline: Verify your serial number range against our specifications to ensure a 100% match.

    Application / Compatibility Guide

    Use CTRL + F or search below to find your engine model

    Loading compatibility data...

    Suzuki SE528 Counter Rotation Lower Unit for DF200, DF225 & DF250

    The Suzuki SE528 lower unit is a premium aftermarket Suzuki counter rotation lower unit for select DF200, DF225, and DF250 V6 outboards requiring a counter-rotation configuration. This SE528 counter rotation gearcase is designed for confirmed 25-inch (ZX) and 30-inch (ZXX) applications and provides a dependable Suzuki left hand lower unit replacement for compatible multi-engine setups.

    Whether you need a Suzuki DF200 counter rotation lower unit, Suzuki DF225 counter rotation lower unit, or Suzuki DF250 counter rotation lower unit, fitment should always be confirmed using the complete engine information. Customers searching for a Suzuki port engine lower unit should not rely on engine position alone; verify the model, serial number, rotation requirement, model year, and shaft configuration before ordering the SE528.

    What Customers Say

    Exactly what I needed

    I needed a Suzuki counter-rotation lower unit for my twin-engine setup, and the SE528 was the right replacement after confirming my engine information. Fitment was straightforward, and everything has been running smoothly. Very pleased with the quality of the gearcase.
    Michael R. Verified buyer
    July 2026

    Great replacement for my DF250

    Ordered this Suzuki DF250 counter-rotation lower unit after damaging the original gearcase. I confirmed the model and shaft configuration before ordering, and the SE528 fit as expected. The boat is back on the water and running great.
    David C. Verified buyer
    June 2026

    Solid SE528 replacement

    The Suzuki SE528 lower unit has been a solid replacement for my counter-rotation setup. The unit arrived in good condition, and installation went smoothly once we verified the correct application. So far, I am very happy with its performance.
    Robert M. Verified buyer
    May 2026

    Good fit for my DF225

    I was looking for a Suzuki DF225 counter-rotation lower unit and chose the SE528 after checking the engine model and shaft length. It matched my application well and has performed smoothly since installation. Definitely worth verifying your engine information before ordering.
    James T. Verified buyer
    April 2026

    Back on the water

    Needed a Suzuki left-hand lower unit to replace a damaged gearcase in my multi-engine setup. The SE528 counter-rotation unit was the correct configuration after fitment was confirmed. Installation went well, and the boat is running properly again.
    Chris B. Verified buyer
    March 2026

    Frequently Asked Questions

    Which Suzuki engines use the SE528 counter-rotation lower unit?
    The Suzuki SE528 lower unit is designed for select counter-rotation Suzuki DF200, DF225, and DF250 V6 outboards. Confirmed applications include select Suzuki DF200 counter-rotation applications from 2004–2014 and compatible DF225 and DF250 counter-rotation applications from 2004 onward. Always verify the complete engine model, model year, shaft configuration, and serial number before ordering to confirm compatibility.
    Is the Suzuki SE528 a left-hand counter-rotation gearcase?
    Yes. The Suzuki SE528 counter-rotation gearcase is a left-hand lower unit designed for compatible ZX and ZXX counter-rotation applications. It should only be used where the engine application specifically requires a counter-rotation replacement gearcase. Before ordering, verify your engine model, serial number, shaft configuration, and rotation requirement to ensure the SE528 is the correct replacement.
    Does the Suzuki SE528 fit DF200, DF225, and DF250 outboards?
    The Suzuki SE528 counter-rotation lower unit fits select DF200, DF225, and DF250 V6 counter-rotation applications, but it is not universal across every engine with these horsepower ratings. The DF200 counter-rotation application is limited to select 2004–2014 models, while confirmed DF225 and DF250 counter-rotation applications extend beyond that range. Verify the complete model designation, model year, shaft length, and serial number before purchase.
    Is the Suzuki SE528 lower unit new or remanufactured?
    The Suzuki SE528 lower unit is a new aftermarket replacement gearcase, not a remanufactured or refurbished OEM lower unit. It is intended as a replacement option for confirmed Suzuki counter-rotation applications requiring the SE528 gearcase. Before ordering, confirm that your engine requires a compatible SE528 configuration by checking the complete model number, serial number, shaft length, and rotation requirement.
    Is the Suzuki SE528 available for 25-inch and 30-inch applications?
    Yes. The Suzuki SE528 counter-rotation lower unit is available for confirmed 25-inch (ZX) and 30-inch (ZXX) applications. The correct shaft configuration should be matched to your complete Suzuki engine model rather than selected by horsepower alone. Before ordering, verify the engine model, serial number, shaft length, and required rotation to ensure the selected SE528 configuration matches your application.
    Can I use the Suzuki SE528 on a standard-rotation outboard?
    No. The Suzuki SE528 is a counter-rotation lower unit designed specifically for compatible left-hand and counter-rotation applications. It should not be used as a replacement for a standard-rotation gearcase. If your Suzuki outboard requires standard or right-hand rotation, verify the appropriate standard-rotation replacement instead. Always confirm the complete model number, serial number, shaft length, and rotation before ordering.
    How do I verify my Suzuki counter-rotation lower unit before ordering?
    Before ordering a Suzuki SE528 lower unit, verify the complete engine model, serial number, model year, counter-rotation requirement, and 25-inch or 30-inch shaft configuration. For twin- or multi-engine installations, also confirm which engine requires the counter-rotating gearcase rather than assuming the SE528 is automatically the correct port-engine lower unit. If you are unsure, provide the engine information to Mariners Warehouse for fitment verification before ordering.

    Related Products

    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)
    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)
    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)
    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)
    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)
    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)
    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)
    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)
    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)
    Example product title
    $1,895.00
    $2,070.15
    $1,895.00
    (-8%)

    Need Help?

    Still Can't Find the Right Marine Part?

    Finding the right replacement part shouldn't be frustrating. If you can't locate the marine part you need, our experienced support team is here to help. Whether you have a part number, engine model, or simply need expert guidance, we'll help you find the correct replacement so you can get back on the water with confidence.

    Contact Marine Experts Browse All Marine Parts

    Trusted by 50,000+ boat owners across the USA

    Still Can't Find the Right <strong>Marine Part?</strong>

    • Expert Marine Support

      Our team has years of experience in marine parts.

    • Fast Response

      We respond quickly to get you the help you need.

    • Find Compatible Parts

      We make sure you get the right part the first time.

    • Huge Selection

      Access to 50,000+ marine parts & accessories.

    Have a Part Number or Engine Model?

    Send it to us and our experts will help you find the exact part you need.

    Recently Viewed Products